File: /var/www/ilya/data/www/irkboard.ru/ips_kernel/classGraph.php
<?php
/**
* Graph class
* Last Updated : $Date: 2009-01-08 14:14:53 -0500 (Thu, 08 Jan 2009) $
* Last Updated by: $Author: bfarber $
*
* @author Remco Wilting
* @copyright (c) 2008 Remco Wilting
* @package Display Graph Class
* @since Sunday 6th July 2008 16:35
* @version $Revision: 209 $
*/
//+---------------------------------------------------------------------------
// USAGE:
// $graph = new classGraph();
// $graph->options['title'] = 'test graph';
// $graph->options['width'] = 400;
// $graph->options['height'] = 300;
// $graph->options['style3D'] = 1;
// $graph->addLabels( array( 'alpha', 'beta', 'gamma' ) );
// $graph->addSeries( 'first bars', array( 5, 3, 0 ) );
// $graph->addSeries( 'second bars', array( 20, 3, 5 ) );
// $graph->options['charttype'] = 'Bar';
// $graph->display();
//+---------------------------------------------------------------------------
class classGraph
{
/**
* Graph options array
*
* @access public
* @var array Options array
*/
public $options = array( 'titlecolor' => '#000000', // The color of the title
'title' => 'График', // The title text (no title of empty)
'titleshadow' => '#AAAAAA', // The shadowcolor of the title
'titlesize' => 16, // The fontsize in points for the title
'width' => 600, // The width of the graph image
'height' => 400, // The height of the graph image
'charttype' => 'Pie', // The type of graph
'style3D' => 1, // 3D style graph (yes/no)
'bgcolor' => '#FFFFFF', // Background color of the graph image
'textcolor' => '#FFFFFF', // Textcolor for data labels
'font' => 'fonts/xsuni.ttf', // Font file used (if TTF)
'xaxistitle' => '', // Title for the x-axis (no title if empty)
'yaxistitle' => '', // Title for the y-axis (no title if empty)
'showdatalabels' => 1, // Display the datalabels (yes/no)
'showlegend' => 1, // Display the legend (yes/no)
'showgridlinesx' => 1, // Show gridlines for the x-axis (yes/no)
'showgridlinesy' => 1, // Show gridlines for the y-axis (yes/no)
'numticks' => 5 // Number of ticks used for numeric axes
);
/**
* Enable Debug Mode
*
* @access protected
* @var boolean Enable Debug Mode
*/
protected $debug = 0;
/**
* Debug Timer
*
* @access protected
* @var int Debug Timer
*/
protected $starttime = 0;
/**
* Use TTF Fonts
*
* @access protected
* @var boolean Use TTF fonts
*/
protected $use_ttf = 0;
/**
* Graph data array
*
* @access protected
* @var boolean Graph data array
*/
protected $data = array();
/**
* Number of Y-axis data array's
*
* @access protected
* @var int Holds the number of y-axis data array's in $data
*/
protected $yaxis_count = 0;
/**
* Vertical size of the title
*
* @access protected
* @var int Holds the size of the title
*/
protected $titlesize = 0;
/**
* Pre-set colors
*
* @access protected
* @var boolean Holds pre-set colors
*/
protected $colors = array( '80,120,200',
'160,80,160',
'0,120,80',
'240,160,60',
'40,160,240',
'200,100,100',
'100,200,100',
'240,200,100',
'60,60,160',
'240,240,100'
);
/**
* Used colors
*
* @access protected
* @var boolean Holds used colors
*/
protected $used_colors = array( 0 => '0,0,0' );
/**
* Current chart colors
*
* @access protected
* @var boolean Current chart colors
*/
protected $color = array();
/**
* Graph area positions
*
* @access protected
* @var array Positions of the grapharea (x0, x1, y0, y1)
*/
protected $grapharea = array();
/**
* Legend data store
*
* @access protected
* @var array Holds the legend names
*/
protected $legend = array();
/**
* X-Axis data store
*
* @access protected
* @var array Holds the specific data for the X-Axis
*/
protected $x_axis = array();
/**
* Y-Axis data store
*
* @access protected
* @var array Holds the specific data for the Y-Axis
*/
protected $y_axis = array();
/**
* Graph image resource
*
* @access protected
* @var resource Holds the graph image resource id
*/
protected $image = null;
/**
* Fontsize of non-TTF fonts
*
* @access protected
* @var int The fontsize of non-TTF fonts
*/
protected $fontsize = 3;
/**
* Color resource for the color black
*
* @access protected
* @var resource Color resource for the color black
*/
protected $black = null;
/**
* Constructor
*
* @access public
* @param boolean [Optional] Enable Debug Mode
* @return void
*/
public function __construct( $debug = 0 )
{
$this->debug = ( $debug ? 1 : 0 );
if ( $this->debug )
{
$mtime = microtime ();
$mtime = explode (' ', $mtime);
$mtime = $mtime[1] + $mtime[0];
$this->starttime = $mtime;
}
if ( defined( 'IPB_THIS_SCRIPT' )) {
$this->options['font'] = ( IPB_THIS_SCRIPT == 'admin' ? '../' : '' ) . 'public/style_captcha/captcha_fonts/times.ttf';
}
}
/**
* Add labels to the graph data
*
* @access public
* @param array Array of data labels
* @return void
*/
public function addLabels( $data = array() )
{
$this->data['xaxis'] = $data;
}
/**
* Add a serie to the graph data
*
* @access public
* @param string Name of the data series
* @param array Array of data values
* @return void
*/
public function addSeries( $name = '', $data = array(), $color = '' )
{
$this->data['yaxis'][$this->yaxis_count]['name'] = $name;
$this->data['yaxis'][$this->yaxis_count]['data'] = $data;
$this->data['yaxis'][$this->yaxis_count]['color'] = $color;
$this->yaxis_count++;
}
/**
* Output the graph as png image
*
* @access public
* @return boolean True if succesful; False if graph generation failed.
*/
public function display()
{
//-----------------------------------------
// Check font
//-----------------------------------------
if ( $this->options['font'] and is_readable( $this->options['font'] ) )
{
$this->use_ttf = 1;
}
//-----------------------------------------
// Check pre-requisites width, height
//-----------------------------------------
if ( $this->options['width'] < 400 or $this->options['height'] < 200 )
{
$this->_error( 'Минимальная ширина графика - 400, а минимальная высота - 200.' );
return false;
}
//-----------------------------------------
// Check supplied colors
//-----------------------------------------
if ( !$this->_checkColor( $this->options['titlecolor'] ) ||
!$this->_checkColor( $this->options['titleshadow'] ) ||
!$this->_checkColor( $this->options['bgcolor'] ) ||
!$this->_checkColor( $this->options['textcolor'] ) )
{
return false;
}
//-----------------------------------------
// Determine graph area
//-----------------------------------------
$this->grapharea = array( 'x0' => 5, 'x1' => $this->options['width'] - 5, 'y0' => 5, 'y1' => $this->options['height'] - 5 );
//-----------------------------------------
// Start GD process
//-----------------------------------------
$this->image = imagecreatetruecolor( $this->options['width'], $this->options['height'] );
if ( function_exists('imageantialias') )
{
@imageantialias( $this->image, TRUE );
}
//-----------------------------------------
// Allocate BG color and black
//-----------------------------------------
$bgcolor = imagecolorallocate($this->image, hexdec(substr($this->options['bgcolor'],1,2)), hexdec(substr($this->options['bgcolor'],3,2)), hexdec(substr($this->options['bgcolor'],5,2)));
imagefilledrectangle( $this->image, 0, 0, $this->options['width'], $this->options['height'], $bgcolor );
$this->black = imagecolorallocate( $this->image, 0, 0, 0 );
//-----------------------------------------
// Draw the title
//-----------------------------------------
$this->_drawTitle();
//-----------------------------------------
// Draw the graph based on type
//-----------------------------------------
switch ( $this->options['charttype'] )
{
case 'Pie':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawPie() ) return false;
break;
case 'Doughnut':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawDoughnut() ) return false;
break;
case 'Bar':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawBars() ) return false;
break;
case 'HBar':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawHorizontalBars() ) return false;
break;
case 'Line':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawLines() ) return false;
break;
case 'Area':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawArea() ) return false;
break;
case 'XY':
if ( !$this->_checkSeries( 2, 0 ) ) return false;
if ( !$this->_drawXY() ) return false;
break;
case 'Bubble':
if ( !$this->_checkSeries( 3, 0 ) ) return false;
if ( !$this->_drawBubble() ) return false;
break;
case 'Funnel':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawFunnel() ) return false;
break;
case 'Radar':
if ( !$this->_checkSeries( 1, 1 ) ) return false;
if ( !$this->_drawRadar() ) return false;
break;
default:
$this->_error( 'Указан неизвестный тип графика \''.$this->options['charttype'].'\'.' );
return false;
}
//-----------------------------------------
// Debug Mode?
//-----------------------------------------
if ( $this->debug )
{
$mtime = microtime ();
$mtime = explode (' ', $mtime);
$mtime = $mtime[1] + $mtime[0];
$endtime = $mtime;
$totaltime = sprintf( "%.4f", round (($endtime - $this->starttime), 5) ) . ' sec';
if ( $this->use_ttf )
{
$txtsize = imagettfbbox( '10', 0, $this->options['font'], $totaltime );
$textx = $this->options['width'] - ( $txtsize[4] - $txtsize[0] ) - 5;
$texty = 5 + ( $txtsize[1] - $txtsize[5] );
imagettftext($this->image, "10", 0, $textx, $texty, $this->black , $this->options['font'], $totaltime );
imagerectangle( $this->image, $textx-5, $texty+5, $this->options['width']-1, 0, $this->black );
}
else
{
$textx = $this->options['width'] - imagefontwidth($this->fontsize)*strlen($totaltime) - 5;
$texty = 5;
ImageString( $this->image, $this->fontsize, $textx, $texty, $totaltime, $this->black);
imagerectangle( $this->image, $textx-5, $texty+5+imagefontheight($this->fontsize), $this->options['width']-1, 0, $this->black );
}
}
//-----------------------------------------
// Flush image
//-----------------------------------------
header('Content-type: image/png');
imagepng($this->image);
imagedestroy($this->image);
return true;
}
/**
* Draw the graph title
*
* @access protected
* @return void
*/
protected function _drawTitle()
{
if ( $this->options['title'] != '' )
{
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Generate title w/shadow
//-----------------------------------------
if ( $this->use_ttf )
{
$txtsize = imagettfbbox($this->options['titlesize'], 0, $this->options['font'], $this->options['title'] );
$textx = round($this->options['width']/2,0) - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $txtsize[1] - $txtsize[5] + $this->grapharea['y0'];
imagettftext($this->image, $this->options['titlesize'], 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $this->options['title']);
imagettftext($this->image, $this->options['titlesize'], 0, $textx , $texty , $textcolor , $this->options['font'], $this->options['title']);
$this->grapharea['y0'] = $texty + 10;
}
else
{
$textx = round($this->options['width']/2,0) - round((imagefontwidth(5)*strlen($this->options['title']))/2,0);
$texty = $this->grapharea['y0'];
imagestring( $this->image, 5, $textx+1, $texty+1, $this->options['title'], $shadowcolor );
imagestring( $this->image, 5, $textx, $texty, $this->options['title'], $textcolor );
$this->grapharea['y0'] = $texty + imagefontheight(5) + 10;
}
}
}
/**
* Draw the legend
*
* @access protected
* @return void
*/
protected function _drawLegend()
{
if ( $this->options['showlegend'] )
{
//-----------------------------------------
// Work out legend position
//-----------------------------------------
$ci = 0;
$legendx = 0;
$legendy = 0;
$maxtxty = 10;
foreach ( $this->legend as $name )
{
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $name );
$legendx = ($txtsize[2]-$txtsize[0]) > $legendx ? $txtsize[2]-$txtsize[0] : $legendx;
$maxtxty = ($txtsize[1]-$txtsize[7]) > $maxtxty ? ($txtsize[1]-$txtsize[7]) : $maxtxty;
}
else
{
$txtsize = strlen( $name ) * imagefontwidth($this->fontsize);
$legendx = ($txtsize > $legendx) ? $txtsize : $legendx;
$maxtxty = imagefontheight($this->fontsize);
}
$ci ++;
}
$legendx = $this->grapharea['x1'] - ($legendx + 25);
$legendy = round( ($this->options['height'] / 2) - ((($maxtxty+5) * $ci) / 2) );
//-----------------------------------------
// Do shade
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, 0, 0, 0 );
$shadowcolor = imagecolorallocate( $this->image, 170, 170, 170);
$ypos = $legendy;
$ci = 0;
$color = array();
//-----------------------------------------
// Draw legends
//-----------------------------------------
foreach ( $this->legend as $name )
{
//-----------------------------------------
// Get Pie slice colors
//-----------------------------------------
if ( isset( $this->data['yaxis'][$ci]['color'] ) && $this->data['yaxis'][$ci]['color'] != '' &&
$this->options['charttype'] != 'Pie' && $this->options['charttype'] != 'Doughnut' && $this->options['charttype'] != 'Funnel' )
{
if ( !$this->_checkColor( $this->data['yaxis'][$ci]['color'] ) ) return false;
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
}
else
{
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor() );
}
$color = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
imagefilledrectangle( $this->image, $legendx+5, $ypos+7 , $legendx+15 , $ypos+17, $color );
if ( $this->use_ttf )
{
$txty = $ypos + 5 + $maxtxty/2;
imagettftext($this->image, "10", 0, $legendx+20+1, $txty+5+1, $shadowcolor, $this->options['font'], $name );
imagettftext($this->image, "10", 0, $legendx+20 , $txty+5 , $textcolor , $this->options['font'], $name );
}
else
{
ImageString( $this->image, $this->fontsize, $legendx+20 , $ypos+7, $name, $this->black);
}
$ypos = $ypos + $maxtxty + 5;
imagecolordeallocate( $this->image, $color );
$ci ++;
}
imagerectangle( $this->image, $legendx, $legendy, $this->grapharea['x1']-1, $ypos + 5, $textcolor );
$this->grapharea['x1'] = $legendx - 5;
}
return true;
}
/**
* Draw X and Y axes
*
* @access protected
* @return void
*/
protected function _drawAxes()
{
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Do we have axes titles?
//-----------------------------------------
if ( $this->options['xaxistitle'] )
{
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $this->options['xaxistitle'] );
$textx = round( ( $this->grapharea['x1']-$this->grapharea['x0'] ) / 2, 0 ) - round( ( $txtsize[4]-$txtsize[0] ) / 2, 0 );
$texty = $this->grapharea['y1'];
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $this->options['xaxistitle'] );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], $this->options['xaxistitle'] );
$this->grapharea['y1'] = $this->grapharea['y1'] - ( $txtsize[1] - $txtsize[5] ) - 5;
}
else
{
$txtwidth = imagefontwidth( $this->fontsize ) * strlen( $this->options['xaxistitle'] );
$textx = round( ( $this->grapharea['x1']-$this->grapharea['x0'] ) / 2, 0 ) - round( $txtwidth / 2, 0 );
$texty = $this->grapharea['y1'] - imagefontheight($this->fontsize);
imagestring( $this->image, $this->fontsize, $textx+1, $texty+1, $this->options['xaxistitle'], $shadowcolor );
imagestring( $this->image, $this->fontsize, $textx, $texty, $this->options['xaxistitle'], $textcolor );
$this->grapharea['y1'] = $this->grapharea['y1'] - imagefontheight($this->fontsize) - 5;
}
}
if ( $this->options['yaxistitle'] )
{
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $this->options['yaxistitle'] );
$textx = $this->grapharea['x0'] + ( $txtsize[1] - $txtsize[5] );
$texty = round( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / 2, 0 ) + ( $txtsize[4] - $txtsize[0] );
imagettftext($this->image, 10, 90, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $this->options['yaxistitle'] );
imagettftext($this->image, 10, 90, $textx , $texty , $textcolor , $this->options['font'], $this->options['yaxistitle'] );
$this->grapharea['x0'] = $textx + 5;
}
else
{
$txtheight = imagefontwidth( $this->fontsize ) * strlen( $this->options['yaxistitle'] );
$textx = $this->grapharea['x0'];
$texty = round( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / 2, 0 ) + round( $txtheight / 2, 0 );
imagestringup( $this->image, $this->fontsize, $textx+1, $texty+1, $this->options['yaxistitle'], $shadowcolor );
imagestringup( $this->image, $this->fontsize, $textx, $texty, $this->options['yaxistitle'], $textcolor );
$this->grapharea['x0'] = $this->grapharea['x0'] + imagefontheight($this->fontsize) + 5;
}
}
//-----------------------------------------
// Determine height of the x-axis
//-----------------------------------------
$xaxisheight = 0;
if ( isset( $this->x_axis['type'] ) )
{
if ( $this->x_axis['type'] == 'numeric' )
{
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $this->x_axis['max'] );
$xaxisheight = $txtsize[1]-$txtsize[5];
}
else
{
$xaxisheight = imagefontheight($this->fontsize);
}
}
else
{
$xaxisheight = 0;
foreach( $this->x_axis['labels'] as $label )
{
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 45, $this->options['font'], $label );
if ( ($textsize[1] - $textsize[5]) > $xaxisheight ) $xaxisheight = $textsize[1] - $textsize[5];
}
else
{
$textsize = imagefontwidth( $this->fontsize ) * strlen( $label );
if ( $textsize > $xaxisheight ) $xaxisheight = $textsize;
}
}
}
$xaxisheight += 8;
$this->grapharea['y1'] -= $xaxisheight;
}
//-----------------------------------------
// Determine width of the y-axis
//-----------------------------------------
$yaxiswidth = 0;
if ( isset( $this->y_axis['type'] ) )
{
if ( $this->y_axis['type'] == 'numeric' )
{
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $this->y_axis['max'] );
$yaxiswidth = $txtsize[2]-$txtsize[0];
}
else
{
$yaxiswidth = imagefontwidth($this->fontsize) * strlen( $this->y_axis['max'] );
}
}
else
{
$yaxiswidth = 0;
foreach( $this->y_axis['labels'] as $label )
{
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 0, $this->options['font'], $label );
if ( ($textsize[2] - $textsize[0]) > $yaxiswidth ) $yaxiswidth = $textsize[2] - $textsize[0];
}
else
{
$textsize = imagefontwidth( $this->fontsize ) * strlen( $label );
if ( $textsize > $yaxiswidth ) $yaxiswidth = $textsize;
}
}
}
$yaxiswidth += 8;
$this->grapharea['x0'] += $yaxiswidth;
}
//-----------------------------------------
// Determine 3D effect size (different for different graph types)
//-----------------------------------------
$effect3DSize = 0;
$numdepth = 1;
if ( $this->options['style3D'] == 1 )
{
if ( $this->options['charttype'] == 'Line' )
{
$effect3DSize = 20;
$numdepth = count( $this->data['yaxis'] );
}
elseif ( $this->options['charttype'] == 'Area' )
{
$effect3DSize = 20;
}
elseif ( $this->options['charttype'] == 'HBar' )
{
//calculate 1 bar height
$numbars = count( $this->data['yaxis'][0]['data'] );
$stepsize = round( ( ( $this->grapharea['y1'] - $this->grapharea['y0'] - 20 ) / $numbars ) * 0.9, 0 );
$barheight = round( $stepsize / count( $this->data['yaxis'] ), 0 );
$effect3DSize = round( $barheight / 2, 0 ) < 20 ? round( $barheight / 2, 0 ) : 20;
}
elseif ( $this->options['charttype'] == 'Bar' )
{
//calculate 1 bar width
$numbars = count( $this->data['yaxis'][0]['data'] );
$stepsize = round( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] - 20 ) / $numbars ) * 0.9, 0 );
$barwidth = round( $stepsize / count( $this->data['yaxis'] ), 0 );
$effect3DSize = round( $barwidth / 2, 0 ) < 20 ? round( $barwidth / 2, 0 ) : 20;
}
elseif ( $this->options['charttype'] == 'Funnel' )
{
$effect3DSize = 40;
}
}
$this->grapharea['x1'] -= $effect3DSize*$numdepth;
$this->grapharea['y0'] += $effect3DSize*$numdepth;
$depth = $numdepth * $effect3DSize;
//-----------------------------------------
// Draw x-axis ticks & labels
//-----------------------------------------
if ( isset( $this->x_axis['type'] ) )
{
if ( $this->y_axis['type'] == 'labels' )
{
$numlabels = count( $this->y_axis['labels'] );
$stepheight = floor( ( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $numlabels ) );
$this->grapharea['y0'] = $this->grapharea['y1'] - $numlabels * $stepheight;
}
if ( $this->x_axis['type'] == 'numeric' )
{
// 0 - Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], '0' );
$textx = $this->grapharea['x0'] - round( ( $txtsize[2]-$txtsize[0] ) / 2, 0);
$texty = $txtsize[1]-$txtsize[5] + $this->grapharea['y1'] + 8;
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], '0' );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], '0' );
}
else
{
$txtwidth = imagefontwidth( $this->fontsize ) * strlen( '0' );
$textx = $this->grapharea['x0'] - round( $txtwidth / 2, 0);
$texty = $this->grapharea['y1'] + 8;
imagestring( $this->image, $this->fontsize, $textx+1, $texty+1, '0', $shadowcolor );
imagestring( $this->image, $this->fontsize, $textx, $texty, '0', $textcolor );
}
$numticks = $this->options['numticks'] > $this->x_axis['max'] ? floor($this->x_axis['max']) : $this->options['numticks'];
$step = floor( $this->x_axis['max'] / $numticks );
$steps = ceil( $this->x_axis['max'] / $step );
$stepwidth = ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $steps;
for ( $i = 1; $i <= $steps; $i++ )
{
$value = $i*$step;
$x = round( ( $value / $step ) * $stepwidth + $this->grapharea['x0'], 0);
// Ticks
imageline( $this->image, $x, $this->grapharea['y1'], $x, $this->grapharea['y1']+5, $this->black );
if ( $depth )
{
imageline( $this->image, $x, $this->grapharea['y1'], $x+$depth, $this->grapharea['y1']-$depth, $this->black );
}
if ( $this->options['showgridlinesx'] )
{
imageline( $this->image, $x+$depth, $this->grapharea['y1']-$depth, $x+$depth, $this->grapharea['y0']-$depth, $this->black );
}
// Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $value );
$textx = $x - round( ( $txtsize[2]-$txtsize[0] ) / 2, 0);
$texty = $txtsize[1]-$txtsize[5] + $this->grapharea['y1'] + 8;
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $value );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], $value );
}
else
{
$txtwidth = imagefontwidth( $this->fontsize ) * strlen( $value );
$textx = $x - round( $txtwidth / 2, 0);
$texty = $this->grapharea['y1'] + 8;
imagestring( $this->image, $this->fontsize, $textx+1, $texty+1, $value, $shadowcolor );
imagestring( $this->image, $this->fontsize, $textx, $texty, $value, $textcolor );
}
}
}
elseif ( $this->x_axis['type'] == 'ticklabels' )
{
$numlabels = count( $this->x_axis['labels'] );
$stepwidth = floor( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / ($numlabels - 1) ) );
$this->grapharea['x1'] = $this->grapharea['x0'] + ($numlabels - 1) * $stepwidth;
for ( $i = 0; $i < $numlabels; $i++ )
{
$label = $this->x_axis['labels'][$i];
$x = $i * $stepwidth + $this->grapharea['x0'];
// Ticks
imageline( $this->image, $x, $this->grapharea['y1'], $x, $this->grapharea['y1']+5, $this->black );
if ( $depth )
{
imageline( $this->image, $x, $this->grapharea['y1'], $x+$depth, $this->grapharea['y1']-$depth, $this->black );
}
if ( $this->options['showgridlinesx'] )
{
imageline( $this->image, $x+$depth, $this->grapharea['y1']-$depth, $x+$depth, $this->grapharea['y0']-$depth, $this->black );
}
// Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 45, $this->options['font'], $label );
$textx = $x - ( $txtsize[4] - $txtsize[0] );
$texty = $txtsize[1]-$txtsize[5] + $this->grapharea['y1'] + 8;
imagettftext($this->image, 10, 45, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $label );
imagettftext($this->image, 10, 45, $textx , $texty , $textcolor , $this->options['font'], $label );
}
else
{
$textx = $x - round( imagefontheight($this->fontsize) / 2, 0 );
$texty = $this->grapharea['y1'] + 8 + imagefontwidth($this->fontsize)*strlen( $label );
imagestringup($this->image, $this->fontsize, $textx+1, $texty+1, $label , $shadowcolor);
imagestringup($this->image, $this->fontsize, $textx, $texty, $label , $this->black);
}
}
}
else
{
$numlabels = count( $this->x_axis['labels'] );
$stepwidth = floor( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $numlabels ) );
$this->grapharea['x1'] = $this->grapharea['x0'] + $numlabels * $stepwidth;
for ( $i = 0; $i < $numlabels; $i++ )
{
$label = $this->x_axis['labels'][$i];
$x = ($i + 1) * $stepwidth + $this->grapharea['x0'];
// Ticks
imageline( $this->image, $x, $this->grapharea['y1'], $x, $this->grapharea['y1']+5, $this->black );
if ( $depth )
{
imageline( $this->image, $x, $this->grapharea['y1'], $x+$depth, $this->grapharea['y1']-$depth, $this->black );
}
if ( $this->options['showgridlinesx'] )
{
imageline( $this->image, $x+$depth, $this->grapharea['y1']-$depth, $x+$depth, $this->grapharea['y0']-$depth, $this->black );
}
// Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 45, $this->options['font'], $label );
$textx = $x - round( $stepwidth / 2 , 0 ) - ( $txtsize[4] - $txtsize[0] );
$texty = $txtsize[1]-$txtsize[5] + $this->grapharea['y1'] + 8;
imagettftext($this->image, 10, 45, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $label );
imagettftext($this->image, 10, 45, $textx , $texty , $textcolor , $this->options['font'], $label );
}
else
{
$textx = $x - round( $stepwidth / 2 , 0 ) - round( imagefontheight($this->fontsize) / 2, 0 );
$texty = $this->grapharea['y1'] + 8 + imagefontwidth($this->fontsize)*strlen( $label );
imagestringup($this->image, $this->fontsize, $textx+1, $texty+1, $label , $shadowcolor);
imagestringup($this->image, $this->fontsize, $textx, $texty, $label , $this->black);
}
}
}
}
//-----------------------------------------
// Draw y-axis ticks & labels
//-----------------------------------------
if ( isset ( $this->y_axis['type'] ) )
{
if ( $this->y_axis['type'] == 'numeric' )
{
// 0 - Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], '0' );
$textx = $this->grapharea['x0'] - ( $txtsize[2]-$txtsize[0] ) - 8;
$texty = $this->grapharea['y1'] + round( ( $txtsize[1] - $txtsize[5] ) / 2, 0 );
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], '0' );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], '0' );
}
else
{
$txtwidth = imagefontwidth( $this->fontsize ) * strlen( '0' );
$textx = $this->grapharea['x0'] - $txtwidth - 8;
$texty = $this->grapharea['y1'] - round ( imagefontheight( $this->fontsize ) / 2, 0);
imagestring( $this->image, $this->fontsize, $textx+1, $texty+1, '0', $shadowcolor );
imagestring( $this->image, $this->fontsize, $textx, $texty, '0', $textcolor );
}
$numticks = $this->options['numticks'] > $this->y_axis['max'] ? floor($this->y_axis['max']) : $this->options['numticks'];
$step = floor( $this->y_axis['max'] / $numticks );
$steps = ceil( $this->y_axis['max'] / $step );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
for ( $i = 1; $i <= $steps; $i++ )
{
$value = $i*$step;
$y = round( $this->grapharea['y1'] - ( $value / $step ) * $stepheight, 0 );
// Ticks
imageline( $this->image, $this->grapharea['x0'], $y, $this->grapharea['x0']-5, $y, $this->black );
if ( $depth )
{
imageline( $this->image, $this->grapharea['x0'], $y, $this->grapharea['x0']+$depth, $y-$depth, $this->black );
}
if ( $this->options['showgridlinesy'] )
{
imageline( $this->image, $this->grapharea['x0']+$depth, $y-$depth, $this->grapharea['x1']+$depth, $y-$depth, $this->black );
}
// Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $value );
$textx = $this->grapharea['x0'] - ( $txtsize[2]-$txtsize[0] ) - 8;
$texty = $y + round( ( $txtsize[1] - $txtsize[5] ) / 2, 0 );
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $value );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], $value );
}
else
{
$txtwidth = imagefontwidth( $this->fontsize ) * strlen( $value );
$textx = $this->grapharea['x0'] - $txtwidth - 8;
$texty = $y - round ( imagefontheight( $this->fontsize ) / 2, 0);
imagestring( $this->image, $this->fontsize, $textx+1, $texty+1, $value, $shadowcolor );
imagestring( $this->image, $this->fontsize, $textx, $texty, $value, $textcolor );
}
}
}
else
{
$numlabels = count( $this->y_axis['labels'] );
$stepheight = floor( ( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $numlabels ) );
$this->grapharea['y0'] = $this->grapharea['y1'] - $numlabels * $stepheight;
for ( $i = 0; $i < $numlabels; $i++ )
{
$label = $this->y_axis['labels'][$i];
$y = $this->grapharea['y1'] - ($i + 1) * $stepheight;
// Ticks
imageline( $this->image, $this->grapharea['x0'], $y, $this->grapharea['x0']-5, $y, $this->black );
if ( $depth )
{
imageline( $this->image, $this->grapharea['x0'], $y, $this->grapharea['x0']+$depth, $y-$depth, $this->black );
}
if ( $this->options['showgridlinesy'] )
{
imageline( $this->image, $this->grapharea['x0']+$depth, $y-$depth, $this->grapharea['x1']+$depth, $y-$depth, $this->black );
}
// Labels
if ( $this->use_ttf )
{
$txtsize = imagettfbbox(10, 0, $this->options['font'], $label );
$textx = $this->grapharea['x0'] - ( $txtsize[4] - $txtsize[0] ) - 8;
$texty = $y + round( $stepheight / 2 , 0 );
imagettftext($this->image, 10, 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $label );
imagettftext($this->image, 10, 0, $textx , $texty , $textcolor , $this->options['font'], $label );
}
else
{
$texty = $y + round( $stepheight / 2 , 0 ) - round( imagefontheight($this->fontsize) / 2, 0 );
$textx = $this->grapharea['x0'] - imagefontwidth($this->fontsize)*strlen( $label ) - 8;
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $label , $shadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $label , $this->black);
}
}
}
}
//-----------------------------------------
// Draw the lines
//-----------------------------------------
imageline( $this->image, $this->grapharea['x0'] - 5, $this->grapharea['y1'], $this->grapharea['x1'], $this->grapharea['y1'], $this->black );
imageline( $this->image, $this->grapharea['x0'], $this->grapharea['y0'], $this->grapharea['x0'], $this->grapharea['y1'] + 5, $this->black );
if ( $effect3DSize )
{
for ( $i = 1; $i <= $numdepth; $i++ )
{
$depth = $effect3DSize * $i;
imageline( $this->image, $this->grapharea['x0'], $this->grapharea['y1'], $this->grapharea['x0']+$depth, $this->grapharea['y1']-$depth, $this->black );
imageline( $this->image, $this->grapharea['x0']+$depth, $this->grapharea['y1']-$depth, $this->grapharea['x0']+$depth, $this->grapharea['y0']-$depth, $this->black );
imageline( $this->image, $this->grapharea['x0']+$depth, $this->grapharea['y0']-$depth, $this->grapharea['x0'], $this->grapharea['y0'], $this->black );
imageline( $this->image, $this->grapharea['x0']+$depth, $this->grapharea['y1']-$depth, $this->grapharea['x1']+$depth, $this->grapharea['y1']-$depth, $this->black );
imageline( $this->image, $this->grapharea['x1']+$depth, $this->grapharea['y1']-$depth, $this->grapharea['x1'], $this->grapharea['y1'], $this->black );
}
}
}
/**
* Generate Pie Chart
*
* @access protected
* @return void
*/
protected function _drawPie()
{
//-----------------------------------------
// Draw Legend
//-----------------------------------------
$this->legend = $this->data['xaxis'];
if ( !$this->_drawLegend() ) return false;
//-----------------------------------------
// Map data into PIE array
//-----------------------------------------
if ( is_array( $this->data['yaxis'][0]['data'] ) && count( $this->data['yaxis'][0]['data'] ) > 0 )
{
$total = array_sum( $this->data['yaxis'][0]['data'] );
$start = 0;
$i = 0;
foreach ( $this->data['yaxis'][0]['data'] as $key => $value )
{
$pies[] = array( 'start' => $start>360?360:$start,
'end' => $start + round(($value / $total) * 360, 0 ) > 360 ? 360 : $start + round(($value / $total) * 360, 0 ) ,
'perc' => round(($value / $total)*100,1),
'name' => isset( $this->data['xaxis'][$i] ) ? $this->data['xaxis'][$i] : $i
);
$start = $start + round(($value / $total) * 360, 0 );
if ( !isset( $this->color[ $i ] ) ) $this->color[ $i ] = explode( ",", $this->_getSliceColor() );
$i++;
}
$pies[$i-1]['end'] = 360;
//-----------------------------------------
// Slice of pie, anyone?
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, 0, 0, 0 );
$shadowcolor = imagecolorallocate( $this->image, 170, 170, 170);
$midx = round( $this->grapharea['x1'] / 2, 0);
$midy = round( ( $this->options['height'] - $this->grapharea['y0'] ) / 2, 0) + $this->grapharea['y0'];
if ( $this->options['style3D'] == 1 )
{
$sizex = round( $this->grapharea['x1'] / 100 * 90, 0);
$sizey = round( $this->grapharea['x1'] / 100 * 50, 0);
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
for ( $i = $midy+20; $i > $midy; $i-- )
{
$ci = 0;
foreach ( $pies as $pie )
{
if ( $pie['start'] > 180 or $pie['start'] == $pie['end'] )
{
$ci++;
# Can't see shadow or nothing to draw, so don't bother
continue;
}
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
imagefilledarc($this->image, $midx, $i, $sizex, $sizey, $pie['start'], $pie['end'], $shadowcolor, IMG_ARC_PIE);
imagecolordeallocate( $this->image, $shadowcolor );
$ci++;
}
}
}
else
{
$maxsize = ( $this->grapharea['y1'] - $this->grapharea['y0'] < $this->grapharea['x1'] ) ? $this->grapharea['y1'] - $this->grapharea['y0'] : $this->grapharea['x1'];
$sizex = round($maxsize / 100 * 90, 0);
$sizey = round($maxsize / 100 * 90, 0);
}
//-----------------------------------------
// Slice
//-----------------------------------------
$ci = 0;
foreach ( $pies as $pie )
{
if ( $pie['start'] == $pie['end'] )
{
# Nothing to draw, so don't bother
$ci++;
continue;
}
$piecolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
imagefilledarc($this->image, $midx, $midy, $sizex, $sizey, $pie['start'], $pie['end'], $piecolor, IMG_ARC_PIE);
imagecolordeallocate( $this->image, $piecolor );
$ci++;
}
//-----------------------------------------
// Data labels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$textcolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$ci = 0;
foreach ( $pies as $key => $pie )
{
$textx = $midx + cos(deg2rad($pie['start']+($pie['end']-$pie['start'])/2))*($sizex/3);
$texty = $midy + sin(deg2rad($pie['start']+($pie['end']-$pie['start'])/2))*($sizey/3);
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
if ( $this->use_ttf )
{
$txtsize = imagettfbbox("10", 0, $this->options['font'], $pie['perc']."%" );
$textx = $textx - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $texty + round(($txtsize[3]-$txtsize[1])/2,0);
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $shadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $shadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx, $texty, $textcolor, $this->options['font'], $pie['perc']."%");
}
else
{
$textx = $textx - round(imagefontwidth($this->fontsize)*strlen($pie['perc']."%")/2,0);
$texty = $texty - round(imagefontheight($this->fontsize)/2,0);
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $pie['perc']."%", $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $pie['perc']."%", $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $pie['perc']."%", $shadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $pie['perc']."%", $textcolor);
}
imagecolordeallocate( $this->image, $shadowcolor );
$ci++;
}
}
}
return true;
}
/**
* Generate Doughnut Chart
*
* @access protected
* @return void
*/
protected function _drawDoughnut()
{
//-----------------------------------------
// Draw Legend
//-----------------------------------------
$this->legend = $this->data['xaxis'];
if ( !$this->_drawLegend() ) return false;
//-----------------------------------------
// Calculates display variables
//-----------------------------------------
$numrings = count( $this->data['yaxis'] );
$textcolor = imagecolorallocate( $this->image, 0, 0, 0 );
$shadowcolor = imagecolorallocate( $this->image, 170, 170, 170);
$bgcolor = imagecolorallocate($this->image, hexdec(substr($this->options['bgcolor'],1,2)), hexdec(substr($this->options['bgcolor'],3,2)), hexdec(substr($this->options['bgcolor'],5,2)));
$midx = round( $this->grapharea['x1'] / 2, 0);
$midy = round( ( $this->options['height'] - $this->grapharea['y0'] ) / 2, 0) + $this->grapharea['y0'];
if ( $this->options['style3D'] == 1 )
{
$sizex = round( $this->grapharea['x1'] / 100 * 90, 0);
$sizey = round( $this->grapharea['x1'] / 100 * 50, 0);
}
else
{
$maxsize = ( $this->grapharea['y1'] - $this->grapharea['y0'] < $this->grapharea['x1'] ) ? $this->grapharea['y1'] - $this->grapharea['y0'] : $this->grapharea['x1'];
$sizex = round($maxsize / 100 * 90, 0);
$sizey = round($maxsize / 100 * 90, 0);
}
$holesizex = round( $sizex * 0.2, 0 );
$holesizey = round( $sizey * 0.2, 0 );
$ringsizex = ( $sizex - $holesizex ) / $numrings;
$ringsizey = ( $sizey - $holesizey ) / $numrings;
//-----------------------------------------
// Lord of the Rings
//-----------------------------------------
for ( $ci = 0; $ci < $numrings; $ci++ )
{
//-----------------------------------------
// Map data into PIE array
//-----------------------------------------
$total = array_sum( $this->data['yaxis'][$ci]['data'] );
$start = 0;
$i = 0;
$pies = array();
foreach ( $this->data['yaxis'][$ci]['data'] as $key => $value )
{
$pies[] = array( 'start' => $start>360?360:$start,
'end' => $start + round(($value / $total) * 360, 0 ) > 360 ? 360 : $start + round(($value / $total) * 360, 0 ) ,
'perc' => round(($value / $total)*100,1),
'name' => isset( $this->data['xaxis'][$i] ) ? $this->data['xaxis'][$i] : $i
);
$start = $start + round(($value / $total) * 360, 0 );
if ( !isset( $this->color[ $i ] ) ) $this->color[ $i ] = explode( ",", $this->_getSliceColor() );
$i++;
}
$pies[$i-1]['end'] = 360;
//-----------------------------------------
// Slice of pie, anyone?
//-----------------------------------------
if ( $this->options['style3D'] == 1 )
{
if ( $ci==0 )
{
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
for ( $i = $midy+20; $i > $midy; $i-- )
{
$pi = 0;
foreach ( $pies as $pie )
{
if ( $pie['start'] > 180 or $pie['start'] == $pie['end'] )
{
$pi++;
# Can't see shadow or nothing to draw, so don't bother
continue;
}
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$pi][0]-50)<0?0:$this->color[$pi][0]-50, ($this->color[$pi][1]-50)<0?0:$this->color[$pi][1]-50, ($this->color[$pi][2]-50)<0?0:$this->color[$pi][2]-50 );
imagefilledarc($this->image, $midx, $i, $sizex-$ci*$ringsizex, $sizey-$ci*$ringsizey, $pie['start'], $pie['end'], $shadowcolor, IMG_ARC_PIE);
imagecolordeallocate( $this->image, $shadowcolor );
$pi++;
}
}
}
}
//-----------------------------------------
// Slice
//-----------------------------------------
$pi = 0;
foreach ( $pies as $pie )
{
if ( $pie['start'] == $pie['end'] )
{
# Nothing to draw, so don't bother
$pi++;
continue;
}
$piecolor = imagecolorallocate( $this->image, $this->color[$pi][0], $this->color[$pi][1], $this->color[$pi][2] );
imagefilledarc($this->image, $midx, $midy, $sizex-$ci*$ringsizex, $sizey-$ci*$ringsizey, $pie['start'], $pie['end'], $piecolor, IMG_ARC_PIE);
imagecolordeallocate( $this->image, $piecolor );
if ( $ci > 0 )
{
# little dark line to distinguish between the series
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$pi][0]-50)<0?0:$this->color[$pi][0]-50, ($this->color[$pi][1]-50)<0?0:$this->color[$pi][1]-50, ($this->color[$pi][2]-50)<0?0:$this->color[$pi][2]-50 );
imagearc($this->image, $midx, $midy, $sizex-$ci*$ringsizex, $sizey-$ci*$ringsizey, $pie['start'], $pie['end'], $shadowcolor );
imagecolordeallocate( $this->image, $shadowcolor );
}
$pi++;
}
//-----------------------------------------
// Data labels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$textcolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$pi = 0;
foreach ( $pies as $key => $pie )
{
$textx = $midx + cos(deg2rad($pie['start']+($pie['end']-$pie['start'])/2))*($sizex/2-($ci+0.5)*$ringsizex/2);
$texty = $midy + sin(deg2rad($pie['start']+($pie['end']-$pie['start'])/2))*($sizey/2-($ci+0.5)*$ringsizey/2);
$textshadowcolor = imagecolorallocate( $this->image, ($this->color[$pi][0]-50)<0?0:$this->color[$pi][0]-50, ($this->color[$pi][1]-50)<0?0:$this->color[$pi][1]-50, ($this->color[$pi][2]-50)<0?0:$this->color[$pi][2]-50 );
if ( $this->use_ttf )
{
$txtsize = imagettfbbox("10", 0, $this->options['font'], $pie['perc']."%" );
$textx = $textx - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $texty + round(($txtsize[3]-$txtsize[1])/2,0);
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $textshadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $textshadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $textshadowcolor, $this->options['font'], $pie['perc']."%");
imagettftext($this->image, "10", 0, $textx, $texty, $textcolor, $this->options['font'], $pie['perc']."%");
}
else
{
$textx = $textx - round(imagefontwidth($this->fontsize)*strlen($pie['perc']."%")/2,0);
$texty = $texty - round(imagefontheight($this->fontsize)/2,0);
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $pie['perc']."%", $textshadowcolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $pie['perc']."%", $textshadowcolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $pie['perc']."%", $textshadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $pie['perc']."%", $textcolor);
}
imagecolordeallocate( $this->image, $textshadowcolor );
$pi++;
}
}
imagecolordeallocate( $this->image, $textcolor );
}
//-----------------------------------------
// The hole
//-----------------------------------------
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the 3D effect for the hole
//-----------------------------------------
$hole = imagecreatetruecolor( $holesizex, $holesizey );
$holemidx = round( $holesizex / 2, 0 );
$holemidy = round( $holesizey / 2, 0 );
if ( function_exists('imageantialias') )
{
@imageantialias( $hole, TRUE );
}
$bgcolor = imagecolorallocate($hole, hexdec(substr($this->options['bgcolor'],1,2)), hexdec(substr($this->options['bgcolor'],3,2)), hexdec(substr($this->options['bgcolor'],5,2)));
$black = imagecolorallocate( $hole, 0, 0, 0 );
for ( $i = 0; $i <= 20; $i++ )
{
$pi = 0;
foreach ( $pies as $pie )
{
if ( $pie['end'] < 180 or $pie['start'] == $pie['end'] )
{
$pi++;
# Can't see shadow or nothing to draw, so don't bother
continue;
}
if ( $pie['start'] < 180 ) $pie['start'] = 180;
$shadowcolor = imagecolorallocate( $hole, ($this->color[$pi][0]-50)<0?0:$this->color[$pi][0]-50, ($this->color[$pi][1]-50)<0?0:$this->color[$pi][1]-50, ($this->color[$pi][2]-50)<0?0:$this->color[$pi][2]-50 );
imagefilledarc($hole, $holemidx, $holemidy+$i, $holesizex, $holesizey, $pie['start'], $pie['end'], $shadowcolor, IMG_ARC_PIE );
imagecolordeallocate( $hole, $shadowcolor );
$pi++;
}
}
imagefilledellipse($hole, $holemidx, $holemidy+21, $holesizex, $holesizey, $bgcolor );
$maxlength = ceil( $holesizey / 2 );
for ( $i = 1; $i <= $maxlength; $i++ )
{
imagearc( $hole, $holemidx, $holemidy+$i, $holesizex, $holesizey, 0, 180, $black );
imagearc( $hole, $holemidx, $holemidy-$i, $holesizex, $holesizey, 180, 360, $black );
}
imagecolortransparent( $hole, $black );
imagecopymerge( $this->image, $hole, $midx-$holemidx, $midy-$holemidy-1, 0, 0, $holesizex, $holesizey, 100 );
imagedestroy( $hole );
}
else
{
// in 2D this is a breeze
imagefilledellipse($this->image, $midx, $midy, $holesizex, $holesizey, $bgcolor );
}
//-----------------------------------------
// Draw series labels
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, 0, 0, 0 );
$textshadowcolor = imagecolorallocate( $this->image, 170, 170, 170);
$textx = floor( $midx + 0.8 * $sizex / 2 );
$texty = $this->grapharea['y0'];
for ( $ci = 0; $ci < $numrings; $ci++ )
{
// draw the label
$label = $this->data['yaxis'][$ci]['name'];
if ( $this->use_ttf )
{
$txtsize = imagettfbbox("10", 0, $this->options['font'], $label );
$txtsizey = $txtsize[1]-$txtsize[5];
imagettftext($this->image, "10", 0, $textx+1, $texty+$txtsizey+1, $textshadowcolor, $this->options['font'], $label );
imagettftext($this->image, "10", 0, $textx, $texty+$txtsizey, $textcolor, $this->options['font'], $label );
}
else
{
$txtsizey = imagefontheight($this->fontsize);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $label, $textshadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $label, $textcolor);
}
// Draw the line to text
$x1 = $midx + cos(deg2rad(300))*($sizex/2-($ci+0.5)*$ringsizex/2);
$y1 = $midy + sin(deg2rad(300))*($sizey/2-($ci+0.5)*$ringsizey/2);
$x2 = $textx - 5;
$y2 = $texty + 0.5 * $txtsizey;
imageline( $this->image, $x1, $y1, $x2, $y2, $this->black );
$texty = $texty + $txtsizey + 5;
}
imagecolordeallocate( $this->image, $textshadowcolor );
imagecolordeallocate( $this->image, $textcolor );
return true;
}
/**
* Generate Bar Chart
*
* @access protected
* @return void
*/
protected function _drawBars()
{
//-----------------------------------------
// Draw Legends and Axes
//-----------------------------------------
foreach ( $this->data['yaxis'] as $key => $series )
{
$this->legend[ $key ] = $series['name'];
}
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'labels',
'labels' => $this->data['xaxis']
);
$this->y_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'] )
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numybars = count( $this->data['yaxis'] );
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $this->data['yaxis'] );
$stepwidth = floor( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $numbars ) );
$barwidth = floor( ( $stepwidth * 0.9 ) / $numybars );
$ident = round ( ( $stepwidth - ( $numybars * $barwidth ) ) / 2, 0 ) + 1;
$effect3DSize = round( $barwidth / 2, 0 ) < 20 ? round( $barwidth / 2, 0 ) : 20;
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$step = floor( $maxvalue / $numticks );
$steps = ceil( $maxvalue / $step );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
//-----------------------------------------
// Candybar?
//-----------------------------------------
for ( $i=0; $i<$numbars; $i++ )
{
for ( $ci=0; $ci<$numybars; $ci++ )
{
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$value = $this->data['yaxis'][$ci]['data'][$i];
//-----------------------------------------
// Find out the bar location and size
//-----------------------------------------
$x1 = $this->grapharea['x0'] + ($stepwidth * $i ) + ($ci * $barwidth ) + $ident;
$x2 = $x1 + $barwidth - 1;
$y1 = round( $this->grapharea['y1'] - $value * $stepheight/$step, 0);
$y2 = $this->grapharea['y1'];
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
$shadowsize = ($x2-$x1)/2 > 20 ? 20 : Round(($x2-$x1)/2, 0);
for ( $j = $shadowsize-1; $j > 0; $j-- )
{
imageline( $this->image, $x2 + $j, $y1 - $j, $x2 + $j, $y2 - $j, $shadowcolor );
}
imagecolordeallocate( $this->image, $shadowcolor );
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-25)<0?0:$this->color[$ci][0]-25, ($this->color[$ci][1]-25)<0?0:$this->color[$ci][1]-25, ($this->color[$ci][2]-25)<0?0:$this->color[$ci][2]-25 );
for ( $j = $shadowsize; $j > 0; $j-- )
{
imageline( $this->image, $x1 + $j, $y1 - $j, $x2 + $j, $y1 - $j, $shadowcolor );
}
imagecolordeallocate( $this->image, $shadowcolor );
}
//-----------------------------------------
// Bar
//-----------------------------------------
$barcolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
imagefilledrectangle( $this->image, $x1, $y1, $x2, $y2-1, $barcolor );
imagecolordeallocate( $this->image, $barcolor );
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$textcolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$textx = $x1 + round( ($x2-$x1) /2, 0);
$texty = $y1 + round( ($y2-$y1) /2, 0);
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $value );
$textx = $textx - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $texty + round(($txtsize[1]-$txtsize[5])/2,0);
$texty = ($texty > $this->grapharea['y1']-2) ? $this->grapharea['y1']-2 : $texty;
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx, $texty, $textcolor, $this->options['font'], $value);
imagecolordeallocate( $this->image, $shadowcolor );
}
else
{
$textx = $textx - round(imagefontwidth($this->fontsize)*strlen($value)/2,0);
$texty = $texty - round(imagefontheight($this->fontsize)/2,0);
$texty = ($texty > $texty-imagefontheight($this->fontsize)-2) ? $texty-imagefontheight($this->fontsize)-2 : $texty;
$shadowcolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $value, $textcolor);
imagecolordeallocate( $this->image, $shadowcolor );
}
}
}
}
return true;
}
/**
* Generate Horizontal Bar Charts
*
* @access protected
* @return void
*/
protected function _drawHorizontalBars()
{
//-----------------------------------------
// Draw Legend & Axes
//-----------------------------------------
foreach ( $this->data['yaxis'] as $key => $series )
{
$this->legend[ $key ] = $series['name'];
}
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'] )
);
$this->y_axis = array( 'type' => 'labels',
'labels' => $this->data['xaxis']
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numybars = count( $this->data['yaxis'] );
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $this->data['yaxis'] );
$stepheight = floor( ( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $numbars ) );
$barheight = floor( ( $stepheight * 0.9 ) / $numybars );
$ident = round ( ( $stepheight - ( $numybars * $barheight ) ) / 2, 0 ) + 1;
$effect3DSize = round( $barheight / 2, 0 ) < 20 ? round( $barheight / 2, 0 ) : 20;
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$step = floor( $maxvalue / $numticks );
$steps = ceil( $maxvalue / $step );
$stepwidth = ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $steps;
//-----------------------------------------
// Candybar?
//-----------------------------------------
for ( $i=0; $i<$numbars; $i++ )
{
for ( $ci=0; $ci<$numybars; $ci++ )
{
//-----------------------------------------
// Get me a nice color will ya
//-----------------------------------------
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$value = $this->data['yaxis'][$ci]['data'][$i];
//-----------------------------------------
// Find out the bar location and size
//-----------------------------------------
$x1 = $this->grapharea['x0'] + 1;
$x2 = round( $this->grapharea['x0'] + $value * $stepwidth / $step, 0);
$y1 = $this->grapharea['y1'] - ($stepheight * $i ) - ($ci * $barheight ) - $ident;
$y2 = $y1 - $barheight + 1;
//-----------------------------------------
// Bar
//-----------------------------------------
$barcolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
imagefilledrectangle( $this->image, $x1, $y1, $x2, $y2, $barcolor );
imagecolordeallocate( $this->image, $barcolor );
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
$shadowsize = ($y1-$y2)/2 > 20 ? 20 : Round(($y1-$y2)/2, 0);
for ( $j = $shadowsize; $j > 0; $j-- )
{
imageline( $this->image, $x2 + $j, $y1 - $j + 1, $x2 + $j, $y2 - $j, $shadowcolor );
}
imagecolordeallocate( $this->image, $shadowcolor );
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-25)<0?0:$this->color[$ci][0]-25, ($this->color[$ci][1]-25)<0?0:$this->color[$ci][1]-25, ($this->color[$ci][2]-25)<0?0:$this->color[$ci][2]-25 );
for ( $j = $shadowsize; $j > 0; $j-- )
{
imageline( $this->image, $x1 + $j, $y2 - $j, $x2 + $j, $y2 - $j, $shadowcolor );
}
imagecolordeallocate( $this->image, $shadowcolor );
}
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$textcolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$textx = $x1 + round( ($x2-$x1) /2, 0);
$texty = $y1 + round( ($y2-$y1) /2, 0);
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $value );
$textx = $textx - round(($txtsize[2]-$txtsize[0])/2,0);
$textx = ( $textx < $this->grapharea['x0'] + 2 ) ? $this->grapharea['x0'] + 2 : $textx;
$texty = $texty + round(($txtsize[1]-$txtsize[5])/2,0);
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $shadowcolor, $this->options['font'], $value);
imagettftext($this->image, "10", 0, $textx, $texty, $textcolor, $this->options['font'], $value);
imagecolordeallocate( $this->image, $shadowcolor );
}
else
{
$textx = $textx - round(imagefontwidth($this->fontsize)*strlen($value)/2,0);
$texty = ($textx < $this->grapharea['x0']+2) ? $this->grapharea['x0']+2 : $textx;
$texty = $texty - round(imagefontheight($this->fontsize)/2,0);
$shadowcolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $value, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $value, $textcolor);
imagecolordeallocate( $this->image, $shadowcolor );
}
}
}
}
return true;
}
/**
* Generate Line Chart
*
* @access protected
* @return void
*/
protected function _drawLines()
{
//-----------------------------------------
// Draw Legend and Axes
//-----------------------------------------
foreach ( $this->data['yaxis'] as $key => $series )
{
$this->legend[ $key ] = $series['name'];
}
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'labels',
'labels' => $this->data['xaxis']
);
$this->y_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'] )
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numybars = count( $this->data['yaxis'] );
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $this->data['yaxis'] );
$stepwidth = floor( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $numbars ) );
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$step = floor( $maxvalue / $numticks );
$steps = ceil( $maxvalue / $step );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
$effect3DSize = 20;
//-----------------------------------------
// Lines
//-----------------------------------------
for ( $ci=0; $ci<$numybars; $ci++ )
{
for ( $i=0; $i<$numbars; $i++ )
{
// No need to draw a line on only the first value
if ( $i > 0 )
{
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$value1 = $this->data['yaxis'][$ci]['data'][$i-1];
$value2 = $this->data['yaxis'][$ci]['data'][$i];
//-----------------------------------------
// Find out the bar location and size
//-----------------------------------------
$x1 = $this->grapharea['x0'] + round( $stepwidth * 0.50, 0 ) + ($i-1) * ( $stepwidth );
$x2 = $this->grapharea['x0'] + round( $stepwidth * 0.50, 0 ) + ($i) * ( $stepwidth );
$y1 = round( $this->grapharea['y1'] - $value1 * $stepheight / $step, 0);
$y2 = round( $this->grapharea['y1'] - $value2 * $stepheight / $step, 0);
$linecolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
$lineshadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-25)<0?0:$this->color[$ci][0]-25, ($this->color[$ci][1]-25)<0?0:$this->color[$ci][1]-25, ($this->color[$ci][2]-25)<0?0:$this->color[$ci][2]-25 );
$lineshadowcolor2 = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
$shadowsize = 20;
$x1 = $x1 + ($numybars-$ci-1) * $shadowsize;
$x2 = $x2 + ($numybars-$ci-1) * $shadowsize;
$y1 = $y1 - ($numybars-$ci-1) * $shadowsize;
$y2 = $y2 - ($numybars-$ci-1) * $shadowsize;
if ( ( $y1 - $y2 ) / ( $x2 - $x1 ) > 1 )
{
imagefilledpolygon( $this->image, array( $x1, $y1, $x2, $y2, $x2+$shadowsize, $y2-$shadowsize, $x1+$shadowsize, $y1-$shadowsize), 4, $lineshadowcolor2 );
}
else
{
imagefilledpolygon( $this->image, array( $x1, $y1, $x2, $y2, $x2+$shadowsize, $y2-$shadowsize, $x1+$shadowsize, $y1-$shadowsize), 4, $lineshadowcolor );
}
}
//-----------------------------------------
// Line & Dots
//-----------------------------------------
imageline( $this->image, $x1, $y1, $x2, $y2, $linecolor );
if ( $this->options['style3D'] != 1 )
{
imageline( $this->image, $x1+1, $y1+1, $x2+1, $y2+1, $lineshadowcolor );
imagefilledellipse( $this->image, $x1+1, $y1+1, 7, 7, $lineshadowcolor );
imagefilledellipse( $this->image, $x1, $y1, 7, 7, $linecolor );
if ( $i == $numbars - 1 )
{
imagefilledellipse( $this->image, $x2+1, $y2+1, 7, 7, $lineshadowcolor );
imagefilledellipse( $this->image, $x2, $y2, 7, 7, $linecolor );
}
}
imagecolordeallocate( $this->image, $linecolor );
imagecolordeallocate( $this->image, $lineshadowcolor );
imagecolordeallocate( $this->image, $lineshadowcolor2 );
}
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
// First value is not calculated yet
if ( $i == 0 )
{
$value2 = $this->data['yaxis'][$ci]['data'][$i];
$x2 = $this->grapharea['x0'] + round( $stepwidth * 0.50, 0 ) + ($i) * ( $stepwidth );
$y2 = round( $this->grapharea['y1'] - $value2 * $stepheight / $step, 0);
if ( $this->options['style3D'] == 1 )
{
$x2 = $x2 + ($numybars-$ci-1) * 20;
$y2 = $y2 - ($numybars-$ci-1) * 20;
}
}
$valuecolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$valshadecolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $value2 );
$textx = $x2 - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $y2 - 3;
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $valshadecolor, $this->options['font'], $value2);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $valshadecolor, $this->options['font'], $value2);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $valshadecolor, $this->options['font'], $value2);
imagettftext($this->image, "10", 0, $textx, $texty, $valuecolor, $this->options['font'], $value2);
}
else
{
$textx = $x2 - round(imagefontwidth($this->fontsize)*strlen($value2)/2,0);
$texty = $y2 - imagefontheight($this->fontsize)-3;
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $value2, $valshadecolor );
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $value2, $valshadecolor );
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $value2, $valshadecolor );
imagestring($this->image, $this->fontsize, $textx, $texty, $value2, $valuecolor);
}
imagecolordeallocate( $this->image, $valuecolor );
imagecolordeallocate( $this->image, $valshadecolor );
}
}
}
return true;
}
/**
* Generate Area Chart
*
* @access protected
* @return void
*/
protected function _drawArea()
{
//-----------------------------------------
// Draw Legend and Axes
//-----------------------------------------
foreach ( $this->data['yaxis'] as $key => $series )
{
$this->legend[ $key ] = $series['name'];
}
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'ticklabels',
'labels' => $this->data['xaxis']
);
$maxarray = array();
foreach ( $this->data['yaxis'] as $series )
{
foreach( $series['data'] as $id => $value )
{
if ( isset ( $maxarray[$id] ) )
{
$maxarray[$id] += $value;
}
else
{
$maxarray[$id] = $value;
}
}
}
$this->y_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $maxarray )
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Calculate area display variables
//-----------------------------------------
$numareas = count( $this->data['yaxis'] );
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $maxarray );
$stepwidth = floor( ( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / ( $numbars - 1 ) ) );
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$step = floor( $maxvalue / $numticks );
$steps = ceil( $maxvalue / $step );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
$effect3DSize = 20;
//-----------------------------------------
// Areas
//-----------------------------------------
for ( $ci=0; $ci<$numareas; $ci++ )
{
for ( $i=0; $i<$numbars; $i++ )
{
// Calculate the positions of the area
$value = $this->data['yaxis'][$ci]['data'][$i];
$area[$ci][$i*2] = $this->grapharea['x0'] + ($i * $stepwidth);
if ( isset( $area[$ci-1][$i*2+1] ) )
{
$area[$ci][$i*2+1] = round( $area[$ci-1][$i*2+1] - $value * $stepheight/$step, 0);
}
else
{
$area[$ci][$i*2+1] = round( $this->grapharea['y1'] - $value * $stepheight/$step, 0);
}
}
// Make the lower positions
if ( isset( $area[$ci-1] ) )
{
for ( $i=$numbars-1; $i>=0; $i-- )
{
$area[$ci][] = $area[$ci-1][$i*2];
$area[$ci][] = $area[$ci-1][$i*2+1];
}
}
else
{
$area[$ci][] = $area[$ci][($numbars-1)*2];
$area[$ci][] = $this->grapharea['y1'];
$area[$ci][] = $area[$ci][0];
$area[$ci][] = $this->grapharea['y1'];
}
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the 3D effect
//-----------------------------------------
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$areashadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
$areashadow = array( $area[$ci][($numbars-1)*2], $area[$ci][($numbars-1)*2+1], $area[$ci][$numbars*2], $area[$ci][$numbars*2+1],
$area[$ci][$numbars*2]+20, $area[$ci][$numbars*2+1]-20, $area[$ci][($numbars-1)*2]+20, $area[$ci][($numbars-1)*2+1]-20 );
imagefilledpolygon( $this->image, $areashadow, 4, $areashadowcolor );
}
}
if ( $this->options['style3D'] == 1 )
{
//-----------------------------------------
// Make the upper 3D effect
//-----------------------------------------
$areashadowcolor = imagecolorallocate( $this->image, ($this->color[$numareas-1][0]-25)<0?0:$this->color[$numareas-1][0]-25, ($this->color[$numareas-1][1]-25)<0?0:$this->color[$numareas-1][1]-25, ($this->color[$numareas-1][2]-25)<0?0:$this->color[$numareas-1][2]-25 );
for ( $i=1; $i<$numbars; $i++ )
{
$areashadow = array( $area[$numareas-1][($i-1)*2], $area[$numareas-1][($i-1)*2+1],
$area[$numareas-1][$i*2], $area[$numareas-1][$i*2+1],
$area[$numareas-1][$i*2]+20, $area[$numareas-1][$i*2+1]-20,
$area[$numareas-1][($i-1)*2]+20, $area[$numareas-1][($i-1)*2+1]-20 );
imagefilledpolygon( $this->image, $areashadow, count($areashadow)/2, $areashadowcolor );
}
}
//-----------------------------------------
// Draw the area's
//-----------------------------------------
foreach( $area as $ci => $series )
{
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$areacolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
imagefilledpolygon( $this->image, $series, count($series)/2, $areacolor );
imagecolordeallocate( $this->image, $areacolor );
}
//-----------------------------------------
// Fix the axes
//-----------------------------------------
imageline( $this->image, $this->grapharea['x0'], $this->grapharea['y1'], $this->grapharea['x1'], $this->grapharea['y1'], $this->black );
imageline( $this->image, $this->grapharea['x0'], $this->grapharea['y0'], $this->grapharea['x0'], $this->grapharea['y1'], $this->black );
if ( $this->options['style3D'] == 1 )
{
imageline( $this->image, $this->grapharea['x1']+20, $this->grapharea['y1']-20, $this->grapharea['x1'], $this->grapharea['y1'], $this->black );
imageline( $this->image, $this->grapharea['x1']+20, $this->grapharea['y1']-20, $this->grapharea['x1']+20, $this->grapharea['y0']-20, $this->black );
}
else
{
imageline( $this->image, $this->grapharea['x1'], $this->grapharea['y1'], $this->grapharea['x1'], $this->grapharea['y0'], $this->black );
}
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$value = array();
for ( $ci=0; $ci<$numareas; $ci++ )
{
for ( $i=0; $i<$numbars; $i++ )
{
// Calculate the positions of the area
if ( isset( $value[$i] ) )
{
$value[$i] += $this->data['yaxis'][$ci]['data'][$i];
}
else
{
$value[$i] = $this->data['yaxis'][$ci]['data'][$i];
}
$valuecolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$valshadecolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $value[$i] );
$textx = $area[$ci][$i*2] - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $area[$ci][$i*2+1] - 3;
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $valshadecolor, $this->options['font'], $value[$i] );
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $valshadecolor, $this->options['font'], $value[$i] );
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $valshadecolor, $this->options['font'], $value[$i] );
imagettftext($this->image, "10", 0, $textx, $texty, $valuecolor, $this->options['font'], $value[$i] );
}
else
{
$textx = $area[$ci][$i*2] - round(imagefontwidth($this->fontsize)*strlen($value[$i])/2,0);
$texty = $area[$ci][$i*2+1] - imagefontheight($this->fontsize) - 3;
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $value[$i], $valshadecolor );
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $value[$i], $valshadecolor );
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $value[$i], $valshadecolor );
imagestring($this->image, $this->fontsize, $textx, $texty, $value[$i], $valuecolor);
}
imagecolordeallocate( $this->image, $valuecolor );
imagecolordeallocate( $this->image, $valshadecolor );
}
}
}
return true;
}
/**
* Generate Scatter Plot (XY Chart)
*
* @access protected
* @return void
*/
protected function _drawXY()
{
//-----------------------------------------
// Draw Legend and Axes
//-----------------------------------------
$this->legend = array ( $this->data['yaxis'][1]['name'] );
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'][0]['data'] )
);
$this->y_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'][1]['data'] )
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
if ( !isset( $this->color[ 0 ] ) ) $this->color[ 0 ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue1 = $this->_getMax( $this->data['yaxis'][0]['data'] );
$maxvalue2 = $this->_getMax( $this->data['yaxis'][1]['data'] );
$numticks = $this->options['numticks'] > $maxvalue1 ? floor($maxvalue1) : $this->options['numticks'];
$step1 = floor( $maxvalue1 / $numticks );
$steps = ceil( $maxvalue1 / $step1 );
$stepwidth = ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $steps;
$numticks = $this->options['numticks'] > $maxvalue2 ? floor($maxvalue2) : $this->options['numticks'];
$step2 = floor( $maxvalue2 / $numticks );
$steps = ceil( $maxvalue2 / $step2 );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
$dotcolor = imagecolorallocate( $this->image, $this->color[0][0], $this->color[0][1], $this->color[0][2] );
$dotshadowcolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
//-----------------------------------------
// Dots
//-----------------------------------------
for ( $i=0; $i<$numbars; $i++ )
{
$value1 = $this->data['yaxis'][0]['data'][$i];
$value2 = $this->data['yaxis'][1]['data'][$i];
//-----------------------------------------
// Find out the bar location and size
//-----------------------------------------
$x1 = round( $this->grapharea['x0'] + $value1 * $stepwidth/$step1, 0 );
$y1 = round( $this->grapharea['y1'] - $value2 * $stepheight/$step2, 0 );
//-----------------------------------------
// Dot
//-----------------------------------------
imagefilledellipse( $this->image, $x1+1, $y1+1, 7, 7, $dotshadowcolor );
imagefilledellipse( $this->image, $x1, $y1, 7, 7, $dotcolor );
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$valuecolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$valshadecolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
$datalabel = '('.$value1.','.$value2.')';
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $datalabel );
$textx = $x1 - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $y1 - 7;
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx, $texty, $valuecolor, $this->options['font'], $datalabel);
}
else
{
$textx = $x1 - round(imagefontwidth($this->fontsize)*strlen($datalabel)/2,0);
$texty = $y1 - imagefontheight($this->fontsize)-7;
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $datalabel, $valuecolor);
}
imagecolordeallocate( $this->image, $valuecolor );
imagecolordeallocate( $this->image, $valshadecolor );
}
}
imagecolordeallocate( $this->image, $dotcolor );
imagecolordeallocate( $this->image, $shadowcolor );
return true;
}
/**
* Generate Bubble Plot
*
* @access protected
* @return void
*/
protected function _drawBubble()
{
//-----------------------------------------
// Draw Legend and Axes
//-----------------------------------------
$this->legend = array ( $this->data['yaxis'][2]['name'] );
if ( !$this->_drawLegend() ) return false;
$this->x_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'][0]['data'] )
);
$this->y_axis = array( 'type' => 'numeric',
'min' => 0,
'max' => $this->_getMax( $this->data['yaxis'][1]['data'] )
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
if ( !isset( $this->color[ 0 ] ) ) $this->color[ 0 ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue1 = $this->_getMax( $this->data['yaxis'][0]['data'] );
$maxvalue2 = $this->_getMax( $this->data['yaxis'][1]['data'] );
$maxvalue3 = $this->_getMax( $this->data['yaxis'][2]['data'] );
$numticks = $this->options['numticks'] > $maxvalue1 ? floor($maxvalue1) : $this->options['numticks'];
$step1 = floor( $maxvalue1 / $numticks );
$steps = ceil( $maxvalue1 / $step1 );
$stepwidth = ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $steps;
$numticks = $this->options['numticks'] > $maxvalue2 ? floor($maxvalue2) : $this->options['numticks'];
$step2 = floor( $maxvalue2 / $numticks );
$steps = ceil( $maxvalue2 / $step2 );
$stepheight = ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $steps;
// Largest bubble size is 1 ticksize (largest x vs y)
$maxbubblesize = ( $stepwidth > $stepheight ) ? $stepwidth : $stepheight;
$dotcolor = imagecolorallocate( $this->image, $this->color[0][0], $this->color[0][1], $this->color[0][2] );
$dotshadowcolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
//-----------------------------------------
// Dots
//-----------------------------------------
for ( $i=0; $i<$numbars; $i++ )
{
$value1 = $this->data['yaxis'][0]['data'][$i];
$value2 = $this->data['yaxis'][1]['data'][$i];
$value3 = $this->data['yaxis'][2]['data'][$i];
//-----------------------------------------
// Find out the bar location and size
//-----------------------------------------
$x1 = round( $this->grapharea['x0'] + $value1 * $stepwidth/$step1, 0 );
$y1 = round( $this->grapharea['y1'] - $value2 * $stepheight/$step2, 0 );
$bubblesize = round( ( $value3 / $maxvalue3 ) * $maxbubblesize, 0 );
//-----------------------------------------
// Bubble
//-----------------------------------------
imagefilledellipse( $this->image, $x1+1, $y1+1, $bubblesize, $bubblesize, $dotshadowcolor );
imagefilledellipse( $this->image, $x1, $y1, $bubblesize, $bubblesize, $dotcolor );
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$valuecolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$valshadecolor = imagecolorallocate( $this->image, ($this->color[0][0]-50)<0?0:$this->color[0][0]-50, ($this->color[0][1]-50)<0?0:$this->color[0][1]-50, ($this->color[0][2]-50)<0?0:$this->color[0][2]-50 );
$datalabel = '('.$value1.','.$value2.','.$value3.')';
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $datalabel );
$textx = $x1 - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $y1 - ( $bubblesize + 5 ) / 2;
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $valshadecolor, $this->options['font'], $datalabel);
imagettftext($this->image, "10", 0, $textx, $texty, $valuecolor, $this->options['font'], $datalabel);
}
else
{
$textx = $x1 - round(imagefontwidth($this->fontsize)*strlen($datalabel)/2,0);
$texty = $y1 - imagefontheight($this->fontsize)-7;
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $datalabel, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $datalabel, $valuecolor);
}
imagecolordeallocate( $this->image, $valuecolor );
imagecolordeallocate( $this->image, $valshadecolor );
}
}
imagecolordeallocate( $this->image, $dotcolor );
imagecolordeallocate( $this->image, $shadowcolor );
return true;
}
/**
* Generate Funnel Chart
*
* @access protected
* @return void
*/
protected function _drawFunnel()
{
//-----------------------------------------
// Draw Axes
//-----------------------------------------
$numcats = count( $this->data['xaxis'] );
for ( $i = $numcats - 1; $i >= 0; $i-- )
{
$labels[$i] = $this->data['xaxis'][$numcats-1-$i];
}
$this->y_axis = array( 'type' => 'labels',
'labels' => $labels
);
$this->_drawAxes();
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// Calculate bar display variables
//-----------------------------------------
$numbars = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $this->data['yaxis'][0]['data'] );
$stepheight = floor( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / $numbars );
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$step = floor( $maxvalue / $numticks );
$steps = ceil( $maxvalue / $step );
$stepwidth = ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / $steps;
$xmid = $this->grapharea['x0'] + floor( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / 2 );
// Get the colors
for ( $i = $numcats - 1; $i >= 0; $i-- )
{
if ( !isset( $this->color[ $i ] ) ) $this->color[ $i ] = explode( ",", $this->_getSliceColor() );
}
for ( $i = 0; $i < $numcats; $i++ )
{
$value = $this->data['yaxis'][0]['data'][$numcats-1-$i];
$x0 = $xmid - round( ( $value * $stepwidth / $step ) / 2, 0 );
$x2 = $xmid + round( ( $value * $stepwidth / $step ) / 2, 0 );
$y1 = $this->grapharea['y1'] - $i * $stepheight - 1;
if ( isset( $this->data['yaxis'][0]['data'][$numcats-2-$i] ) )
{
$nextval = $this->data['yaxis'][0]['data'][$numcats-2-$i];
}
else
{
$nextval = $maxvalue;
}
$x1 = $xmid - round( ( $nextval * $stepwidth/$step ) / 2, 0 );
$x3 = $xmid + round( ( $nextval * $stepwidth/$step ) / 2, 0 );
$y0 = $y1 - $stepheight + 1;
$linecolor = ImageColorAllocate($this->image, $this->color[$i][0], $this->color[$i][1], $this->color[$i][2] );
if ( $this->options['style3D'] != 1 )
{
// 2D style
$points = array ( $x0, $y1, $x1, $y0, $x3, $y0, $x2, $y1 );
imagefilledpolygon( $this->image, $points, 4, $linecolor );
}
else
{
//3D Style
for ( $j = 0; $j < $stepheight; $j++ )
{
$width = ( $x2 - $x0 ) + round( $j * (( $x3 - $x1 ) - ( $x2 - $x0 )) / $stepheight, 0 );
$height = floor ( ( ( $value + ( $j * ( $nextval - $value ) / $stepheight ) ) / $maxvalue ) * 40 );
$x = $xmid + 20;
$y = $y1 - 20 - $j;
imagefilledarc( $this->image, $x, $y, $width, $height, 0, 180, $linecolor, IMG_ARC_PIE );
}
}
//-----------------------------------------
// Datalabels
//-----------------------------------------
if ( $this->options['showdatalabels'] )
{
$textcolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$i][0]-50)<0?0:$this->color[$i][0]-50, ($this->color[$i][1]-50)<0?0:$this->color[$i][1]-50, ($this->color[$i][2]-50)<0?0:$this->color[$i][2]-50 );
if ( $nextval == 0 )
{
$label = $value.' (100%)';
}
else
{
$label = $value.' ('.round(($value/$nextval)*100,1).'%)';
}
if ( $this->use_ttf )
{
$txtsize = imagettfbbox('10', 0, $this->options['font'], $label );
$textx = $xmid - round(($txtsize[2]-$txtsize[0])/2,0);
$texty = $y0 + floor( $stepheight / 2 ) + floor(($txtsize[1]-$txtsize[5])/2);
if ( $this->options['style3D'] )
{
$correction = floor ( ( ( $nextval - (($nextval - $value) / 2 ) ) / $maxvalue ) * 20 );
$textx = $textx + 20 - $correction;
$texty = $texty - 20 + $correction;
}
imagettftext($this->image, "10", 0, $textx-1, $texty-1, $shadowcolor, $this->options['font'], $label);
imagettftext($this->image, "10", 0, $textx+1, $texty+1, $shadowcolor, $this->options['font'], $label);
imagettftext($this->image, "10", 0, $textx+2, $texty+2, $shadowcolor, $this->options['font'], $label);
imagettftext($this->image, "10", 0, $textx, $texty, $textcolor, $this->options['font'], $label);
}
else
{
$textx = $xmid - round(imagefontwidth($this->fontsize)*strlen($label)/2,0);
$texty = ($textx < $this->grapharea['x0']+2) ? $this->grapharea['x0']+2 : $textx;
$texty = $y0 + + floor( $stepheight / 2 ) - floor(imagefontheight($this->fontsize)/2);
if ( $this->options['style3D'] )
{
$correction = floor ( ( ( $nextval - (($nextval - $value) / 2 ) ) / $maxvalue ) * 20 );
$textx = $textx + 20 - $correction;
$texty = $texty - 20 + $correction;
}
$shadowcolor = imagecolorallocate( $this->image, ($this->color[$i][0]-50)<0?0:$this->color[$i][0]-50, ($this->color[$i][1]-50)<0?0:$this->color[$i][1]-50, ($this->color[$i][2]-50)<0?0:$this->color[$i][2]-50 );
imagestring($this->image, $this->fontsize, $textx-1, $texty-1, $label, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1, $label, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2, $label, $shadowcolor);
imagestring($this->image, $this->fontsize, $textx, $texty, $label, $textcolor);
}
imagecolordeallocate( $this->image, $shadowcolor );
imagecolordeallocate( $this->image, $textcolor );
}
}
if ( $this->options['style3D'] )
{
$insidecolor = imagecolorallocate( $this->image, ($this->color[$numcats - 1][0]-50)<0?0:$this->color[$numcats - 1][0]-50, ($this->color[$numcats - 1][1]-50)<0?0:$this->color[$numcats - 1][1]-50, ($this->color[$numcats - 1][2]-50)<0?0:$this->color[$numcats - 1][2]-50 );
imagefilledarc( $this->image, $xmid + 20, $y0 - 20, $x3 - $x1, 40, 0, 360, $insidecolor, IMG_ARC_PIE );
$linecolor = ImageColorAllocate($this->image, $this->color[$numcats - 1][0], $this->color[$numcats - 1][1], $this->color[$numcats - 1][2] );
imagearc( $this->image, $xmid + 20, $y0 - 20, $x3 - $x1, 40, 0, 360, $linecolor );
}
return true;
}
/**
* Generate Radar Chart
*
* @access protected
* @return void
*/
protected function _drawRadar()
{
//-----------------------------------------
// Draw Legend & Axes
//-----------------------------------------
foreach ( $this->data['yaxis'] as $key => $series )
{
$this->legend[ $key ] = $series['name'];
}
if ( !$this->_drawLegend() ) return false;
//-----------------------------------------
// Figure out center position
//-----------------------------------------
$xmid = $this->grapharea['x0'] + round( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / 2, 0);
$ymid = $this->grapharea['y0'] + round( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / 2, 0);
//-----------------------------------------
// Figure out size
//-----------------------------------------
$maxlabelwidth = 0;
$maxlabelheight = 0;
foreach( $this->data['xaxis'] as $label )
{
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 0, $this->options['font'], $label );
if ( ($textsize[2] - $textsize[0]) > $maxlabelwidth ) $maxlabelwidth = $textsize[2] - $textsize[0];
if ( ($textsize[1] - $textsize[5]) > $maxlabelheight ) $maxlabelheight = $textsize[1] - $textsize[5];
}
else
{
$textsize = imagefontwidth( $this->fontsize ) * strlen( $label );
if ( $textsize > $maxlabelwidth ) $maxlabelwidth = $textsize;
$maxlabelheight = imagefontheight( $this->fontsize );
}
}
$lengthx = floor( ( $this->grapharea['x1'] - $this->grapharea['x0'] ) / 2 - 5 - $maxlabelwidth );
$lengthy = floor( ( $this->grapharea['y1'] - $this->grapharea['y0'] ) / 2 - 5 - $maxlabelheight );
$armlength = $lengthx > $lengthy ? $lengthy : $lengthx;
$numaxes = count( $this->data['yaxis'][0]['data'] );
$maxvalue = $this->_getMax( $this->data['yaxis'] );
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$maxvalue = ceil ( $maxvalue / $numticks ) * $numticks;
//-----------------------------------------
// Allocate text and shadow cols
//-----------------------------------------
$textcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titlecolor'],1,2)), hexdec(substr($this->options['titlecolor'],3,2)), hexdec(substr($this->options['titlecolor'],5,2)));
$shadowcolor = imagecolorallocate( $this->image, hexdec(substr($this->options['titleshadow'],1,2)), hexdec(substr($this->options['titleshadow'],3,2)), hexdec(substr($this->options['titleshadow'],5,2)));
//-----------------------------------------
// A spider draws a web
//-----------------------------------------
$webxy = array();
$webtick = array();
$textxy = array();
for ( $i = 0; $i < $numaxes; $i++ )
{
$rotation = -90 + round( $i * 360 / $numaxes, 0 );
// Web axes
$webxy[$i*2] = $xmid + cos(deg2rad( $rotation ) ) * $armlength;
$webxy[$i*2+1] = $ymid + sin(deg2rad( $rotation ) ) * $armlength;
imageline( $this->image, $xmid, $ymid, $webxy[$i*2], $webxy[$i*2+1], $this->black );
// Calculate web tick
for ( $j = 0; $j < $this->options['numticks']; $j++ )
{
$webtickxy[$j][$i*2] = $xmid + cos(deg2rad( $rotation ) ) * ( ( $j + 1 )* $armlength / ( $this->options['numticks'] ) );
$webtickxy[$j][$i*2+1] = $ymid + sin(deg2rad( $rotation ) ) * ( ( $j + 1 ) * $armlength / ( $this->options['numticks'] ) );
}
// Calculate the label positions
$label = $this->data['xaxis'][$i];
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 0, $this->options['font'], $label );
$textwidth = $textsize[4] - $textsize[0];
$textheight = $textsize[1] - $textsize[5];
}
else
{
$textwidth = imagefontwidth($this->fontsize)*strlen($label);
$textheight = imagefontheight($this->fontsize);
}
if ( $rotation > -90 && $rotation < 90 )
{
$textxy[] = $webxy[$i*2] + 5;
$textxy[] = $webxy[$i*2+1] + floor( ( $textheight ) / 2 );
}
elseif ( $rotation == -90 )
{
$textxy[] = $webxy[$i*2] - floor( ( $textwidth ) / 2 );
$textxy[] = $webxy[$i*2+1] - 5;
}
elseif ( $rotation == 90 )
{
$textxy[] = $webxy[$i*2] - floor( ( $textwidth ) / 2 );
$textxy[] = $webxy[$i*2+1] + 5 + $textheight;
}
else
{
$textxy[] = $webxy[$i*2] - 5 - ( $textwidth );
$textxy[] = $webxy[$i*2+1] + floor( ( $textheight ) / 2 );
}
// Draw the labels
if ( $this->use_ttf )
{
imagettftext($this->image, "10", 0, $textxy[$i*2]+1, $textxy[$i*2+1]+1, $shadowcolor, $this->options['font'], $label );
imagettftext($this->image, "10", 0, $textxy[$i*2] , $textxy[$i*2+1] , $textcolor , $this->options['font'], $label );
}
else
{
imagestring($this->image, $this->fontsize, $textxy[$i*2]+1, $textxy[$i*2+1]+1-imagefontheight($this->fontsize), $label, $shadowcolor);
imagestring($this->image, $this->fontsize, $textxy[$i*2], $textxy[$i*2+1]-imagefontheight($this->fontsize), $label, $textcolor);
}
}
//-----------------------------------------
// Draw the web lines
//-----------------------------------------
foreach( $webtickxy as $tickxy )
{
imagepolygon( $this->image, $tickxy, $numaxes, $this->black );
}
//-----------------------------------------
// Draw the axes value text
//-----------------------------------------
$numticks = $this->options['numticks'] > $maxvalue ? floor($maxvalue) : $this->options['numticks'];
$tick = $maxvalue / $numticks;
for ( $j = 0; $j < $this->options['numticks']; $j++ )
{
$value = ($j + 1) * $tick;
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 0, $this->options['font'], $value );
$textheight = $textsize[1] - $textsize[5];
imagettftext($this->image, "10", 0, $webtickxy[$j][0]+6, $webtickxy[$j][1]+floor($textheight/2)+1, $shadowcolor, $this->options['font'], $value );
imagettftext($this->image, "10", 0, $webtickxy[$j][0]+5, $webtickxy[$j][1]+floor($textheight/2) , $textcolor , $this->options['font'], $value );
}
else
{
imagestring($this->image, $this->fontsize, $webtickxy[$j][0]+6, $webtickxy[$j][1]-floor(imagefontheight($this->fontsize)/2)+1, $value, $shadowcolor );
imagestring($this->image, $this->fontsize, $webtickxy[$j][0]+5, $webtickxy[$j][1]-floor(imagefontheight($this->fontsize)/2) , $value, $textcolor );
}
}
//-----------------------------------------
// Draw the series
//-----------------------------------------
$numseries = count( $this->data['yaxis'] );
for ( $ci = 0; $ci < $numseries; $ci++ )
{
if ( !isset( $this->color[ $ci ] ) ) $this->color[ $ci ] = explode( ",", $this->_getSliceColor( $this->data['yaxis'][$ci]['color'] ) );
$linecolor = ImageColorAllocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
$dotcolor = imagecolorallocate( $this->image, $this->color[$ci][0], $this->color[$ci][1], $this->color[$ci][2] );
$dotshadowcolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
//-----------------------------------------
// Get the x and y's for the lines
//-----------------------------------------
$linesxy = array();
$lineshadowxy = array();
$textxy = array();
for ( $i = 0; $i < $numaxes; $i++ )
{
$value = $this->data['yaxis'][$ci]['data'][$i];
$rotation = -90 + round( $i * 360 / $numaxes, 0 );
$linesxy[$i*2] = $xmid + cos(deg2rad( $rotation ) ) * floor( ( $value / $maxvalue ) * $armlength );
$linesxy[$i*2+1] = $ymid + sin(deg2rad( $rotation ) ) * floor( ( $value / $maxvalue ) * $armlength );
$lineshadowxy[$i*2] = $linesxy[$i*2] + 1;
$lineshadowxy[$i*2+1] = $linesxy[$i*2+1] + 1;
if ( $this->options['showdatalabels'] )
{
// Calculate the datalabel positions
$textxy[$i*2] = $xmid + cos(deg2rad( $rotation ) ) * floor( ( $value / $maxvalue ) * $armlength + 5 );
$textxy[$i*2+1] = $ymid + sin(deg2rad( $rotation ) ) * floor( ( $value / $maxvalue ) * $armlength + 5 );
if ( $this->use_ttf )
{
$textsize = imagettfbbox(10, 0, $this->options['font'], $value );
$textwidth = $textsize[4] - $textsize[0];
$textheight = $textsize[1] - $textsize[5];
}
else
{
$textwidth = imagefontwidth($this->fontsize)*strlen($value);
$textheight = imagefontheight($this->fontsize);
}
if ( $rotation > -90 && $rotation < 90 )
{
$textxy[$i*2] = $textxy[$i*2] + 5;
$textxy[$i*2+1] = $textxy[$i*2+1] + floor( ( $textheight ) / 2 );
}
elseif ( $rotation == -90 )
{
$textxy[$i*2] = $textxy[$i*2] - floor( ( $textwidth ) / 2 );
$textxy[$i*2+1] = $textxy[$i*2+1] - 5;
}
elseif ( $rotation == 90 )
{
$textxy[$i*2] = $textxy[$i*2] - floor( ( $textwidth ) / 2 );
$textxy[$i*2+1] = $textxy[$i*2+1] + 5 + $textheight;
}
else
{
$textxy[$i*2] = $textxy[$i*2] - 5 - ( $textwidth );
$textxy[$i*2+1] = $textxy[$i*2+1] + floor( ( $textheight ) / 2 );
}
}
}
//-----------------------------------------
// Draw the lines, dots and text
//-----------------------------------------
imagepolygon( $this->image, $linesxy, $numaxes, $linecolor );
imagepolygon( $this->image, $lineshadowxy, $numaxes, $dotshadowcolor );
$valuecolor = ImageColorAllocate($this->image, hexdec(substr($this->options['textcolor'],1,2)), hexdec(substr($this->options['textcolor'],3,2)), hexdec(substr($this->options['textcolor'],5,2)));
$valshadecolor = imagecolorallocate( $this->image, ($this->color[$ci][0]-50)<0?0:$this->color[$ci][0]-50, ($this->color[$ci][1]-50)<0?0:$this->color[$ci][1]-50, ($this->color[$ci][2]-50)<0?0:$this->color[$ci][2]-50 );
for( $i = 0; $i < $numaxes; $i++ )
{
imagefilledellipse( $this->image, $linesxy[$i*2]+1, $linesxy[$i*2+1]+1, 7, 7, $dotshadowcolor );
imagefilledellipse( $this->image, $linesxy[$i*2], $linesxy[$i*2+1], 7, 7, $dotcolor );
if ( $this->options['showdatalabels'] )
{
$value = $this->data['yaxis'][$ci]['data'][$i];
if ( $this->use_ttf )
{
imagettftext($this->image, "10", 0, $textxy[$i*2]-1, $textxy[$i*2+1]-1, $valshadecolor, $this->options['font'], $value );
imagettftext($this->image, "10", 0, $textxy[$i*2]+1, $textxy[$i*2+1]+1, $valshadecolor, $this->options['font'], $value );
imagettftext($this->image, "10", 0, $textxy[$i*2]+2, $textxy[$i*2+1]+2, $valshadecolor, $this->options['font'], $value );
imagettftext($this->image, "10", 0, $textxy[$i*2] , $textxy[$i*2+1] , $valuecolor , $this->options['font'], $value );
}
else
{
imagestring($this->image, $this->fontsize, $textx-1, $texty-1-imagefontheight($this->fontsize), $label, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+1, $texty+1-imagefontheight($this->fontsize), $label, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx+2, $texty+2-imagefontheight($this->fontsize), $label, $valshadecolor);
imagestring($this->image, $this->fontsize, $textx, $texty-imagefontheight($this->fontsize), $label, $valuecolor);
}
}
}
imagecolordeallocate( $this->image, $linecolor );
imagecolordeallocate( $this->image, $dotcolor );
imagecolordeallocate( $this->image, $dotshadowcolor );
imagecolordeallocate( $this->image, $valshadecolor );
imagecolordeallocate( $this->image, $valuecolor );
}
return true;
}
/**
* Get a random color
*
* @access protected
* @return string String with RGB values for the color (format 'R,G,B')
*/
protected function _getSliceColor( $force_color='' )
{
# Remove 0,0,0 from count
$used_count = count( $this->used_colors ) - 1;
$return = "";
# Used all std cols
if ( $force_color )
{
$r = hexdec( substr( $force_color, 1, 2 ) );
$g = hexdec( substr( $force_color, 3, 2 ) );
$b = hexdec( substr( $force_color, 5, 2 ) );
$return = "$r,$g,$b";
$this->used_colors[] = $return;
}
elseif ( $used_count < count( $this->colors ) )
{
$this->used_colors[] = $this->colors[ $used_count ];
$return = $this->colors[ $used_count ];
}
else
{
# 0-12 for each RGB bit == 1728 poss col. combinations
for ( $i = 0 ; $i <= 1728 ; $i++ )
{
$r = mt_rand( 0, 12 ) * 20;
$g = mt_rand( 0, 12 ) * 20;
$b = mt_rand( 0, 12 ) * 20;
$return = "$r,$g,$b";
if ( ! in_array( $return, $this->used_colors ) )
{
$this->used_colors[] = $return;
break;
}
else
{
continue;
}
}
}
return $return;
}
/**
* Get maximum value from the y-axis data array's
*
* @access protected
* @param array Array of Y-axis data serie(s)
* @return numeric Maximum value from the input array
*/
protected function _getMax( $data=array() )
{
$maxval = 0;
foreach( $data as $series )
{
if ( is_array( $series ) )
{
foreach( $series['data'] as $value )
{
if ( $value > $maxval ) $maxval = $value;
}
}
else
{
if ( $series > $maxval ) $maxval = $series;
}
}
return $maxval;
}
/**
* Check the series required for graph
*
* @access protected
* @param int Minimum number of series
* @param boolean Require labels
* @return boolean True if all checks pass; false otherwise
*/
protected function _checkSeries( $minseries=0, $labelsRequired=0 )
{
//-----------------------------------------
// Check series
//-----------------------------------------
if ( !isset( $this->data['yaxis'][$minseries-1]['data'] ) )
{
$this->_error( 'Должно быть не менее '.$minseries.' меток для добавления на \''.$this->options['charttype'].'\' график.' );
return false;
}
if ( $labelsRequired && ( !isset( $this->data['xaxis'] ) or !is_array( $this->data['xaxis'] ) ) )
{
$this->_error( 'Необходимо добавить метки на график.' );
return false;
}
$cntseries = count( $this->data['yaxis'][0]['data'] );
foreach( $this->data['yaxis'] as $series )
{
if ( $cntseries != count( $series['data'] ) )
{
$this->_error( 'Не все ряды имеют одинаково колчиество чисел.' );
return false;
}
}
if ( $labelsRequired && count( $this->data['xaxis'] ) != count( $this->data['yaxis'][0]['data'] ) )
{
$this->_error( 'Число меток не совпадает с числом рядов.' );
return false;
}
foreach( $this->data['yaxis'] as $series )
{
foreach( $series['data'] as $value )
{
if ( !is_numeric( $value ) )
{
$this->_error( 'Обнаружено не числовое значение. Данные в рядах должны быть числовыми.' );
return false;
}
}
}
return true;
}
/**
* Check if a color string is valid
*
* @access protected
* @param int Minimum number of series
* @param boolean Require labels
* @return boolean True if all checks pass; false otherwise
*/
protected function _checkColor( $color='' )
{
if ( strlen( $color ) != 7 )
{
$this->_error( 'Указан не верный код цвета. Код цвета должен быть указан в шестнадцатиричном формате. Например #FFFFFF для белого.' );
return false;
}
elseif ( !preg_match( "#[0-9A-F]{6}#i", substr( $color, 1 ) ) )
{
$this->_error( 'Указан не верный код цвета. Код цвета должен быть указан в шестнадцатиричном формате. Например #FFFFFF для белого.' );
return false;
}
return true;
}
/**
* Error routine, display the error message in debug mode
*
* @access protected
* @param string Error message
* @return void
*/
protected function _error( $msg='' )
{
//-----------------------------------------
// Destroy the original image
//-----------------------------------------
if ( $this->image )
{
imagedestroy( $this->image );
}
//-----------------------------------------
// Start GD process
//-----------------------------------------
$width = $this->options['width'] < 400 ? 400 : $this->options['width'];
$height = $this->options['height'] < 200 ? 200 : $this->options['height'];
$errorimage = imagecreatetruecolor( $width, $height );
$bgcolor = imagecolorallocate($errorimage, 255, 255, 255);
imagefilledrectangle( $errorimage, 0, 0, $width, $height, $bgcolor );
if ( function_exists('imageantialias') )
{
@imageantialias( $errorimage, TRUE );
}
//-----------------------------------------
// Allocate black and grey
//-----------------------------------------
$black = imagecolorallocate( $errorimage, 0, 0, 0 );
$grey = imagecolorallocate( $errorimage, 170, 170, 170);
$messageheight = 0;
if ( $this->debug )
{
//-----------------------------------------
// Wordwrap the error message
//-----------------------------------------
$errormessage = '';
while ( strlen( $msg ) > 44 )
{
$lastspace = 0;
for ( $j = 0; $j < 44; $j++ )
{
if ( substr( $msg, $j, 1 ) == ' ' )
{
$lastspace = $j;
}
}
$errormessage .= substr( $msg, 0, $lastspace )."\r\n";
$msg = substr( $msg, $lastspace+1 );
}
$errormessage .= $msg;
$errormesssage = "Ошибка:\r\n".$errormessage;
//-----------------------------------------
// Calculate vertical size
//-----------------------------------------
if ( $this->use_ttf )
{
$txtsize = imagettfbbox( '10', 0, $this->options['font'], $errormessage );
$messageheight = $txtsize[1] - $txtsize[5];
}
else
{
$msgarray = explode( "\r\n", $errormessage );
foreach( $msgarray as $msgline )
{
$messageheight = $messageheight + imagefontheight( 3 ) + 10;
}
$messageheight -= 10;
}
$messageheight += 40;
}
//-----------------------------------------
// Get the error icon
//-----------------------------------------
$errorIconData = base64_decode( 'R0lGODlhKQAlAPf/AP34o/75s6qGFOTi2/32jbKSIvXfTPHqy/Hx8fz3mfz2kvTcQfLx6dTDdf78ybaZNcStXPfjWqF8Df35uv'.
'7+3fz2kMWsRf34nf//+f33lPn5+cKnO/Hr1NHR0dnGTKyMJOzlzeDe1vvxb/rsedPMabmdN/TcRvjnababQfrrdvLXNbusRPzt'.
'f/vycv31nP32jsu1V83b6P795LOVNPzzefvydfz3l72kRuLXq+/v7/36renp6amGHXBtOpqOOO3ktPjlY/PaPvPZO/TeSfz0hP'.
'jmZvX19f78xvnqc/z1iPzwfdfGfcq1XqyLHVhULu3lvuHUlPz0i/31h6eCDJt1Bf76qf32iPz0gtPHmvzzdayJFf31fuHSjf37'.
'9Pzybvj15vfz4lZPHvHqwv3zkVhUKqB6Bvj13MauTvv57vj27vj168++Sv34mv31pP32iv31gfzzgPvzerStW9XCaP7911dRIv'.
'32hvz1jO3l0fvzeN3RptG+esOsU7iaMIeER/PYOP///fnobPnpb/LXM/bgT/bgU/vtfPjkXvHWMPzugfHVLvDULvzvg////PDU'.
'Lf3whffjV/v7+/DTLf//+v39+uzs7Pf39/3xh+Tk5NvWwf360f/+9ePZt9vb28y6df33jIeCP/biTvnsYPvte/XhTv32g9vMiL'.
'GPHXlwKse1Znt5QvzzfmJbI/3xiaSWN/fmV/rwgLufOvHXM9C5XP7+6/nparaXJreZL1ZPH2RiN3luKfzufvz8/P79/dzZxtfQ'.
'sbOsT766afvzmPrsc+vr6/ruafzzcqJ+Eb6hMd3bz/z1jvTbQPjoV/nugMS0Rc68QvHYOdfX18i2cOTZpvPfTv376f377oR6MP'.
'790P31hPjqYPbz3/joZ/rvZuLWm/DaS/3zhNfQrfnpcPnpcuPj4+3lxuLXpv33kvjtffPbQPvybMjGvfXfR/Dka/DUL/77w/37'.
'xv3yjf78wuDf2ubcsefn5/vwetnIdtzc3K+iQMGoStLDg9fFes/Pz5pzAMnY5iH5BAEAAP8ALAAAAAApACUAAAj/AP8JHEiwoE'.
'AOKKigAKHBoMOHEAmq+cCpFyceAzTEiMiR4w09RwAc0YNiR6SOKA3Sm7EJAIALm2ZgQZCy5j9KH/AEuHAhgQ48H+Y1tNlxHwQK'.
'PNkksEEBgrRKRDmiOaYGgFIbChQkSCMhmZGoEJnswXY1g4IKyuDt4WMSrMEDPLr0NFvhBYEoUbrw+EXTLcEHOCbYoPviTpIkRK'.
'rgmIFpqN9pD2gNzlDhjmEpRK7AkfFgXw6/Nz+AqJLh3ItguZz4IQJnVZxz5ZrMs+S3AQQ6pe32cMKbhOs4eRzwSVWJF1gwEtKw'.
'MU3AjSreTkjQyFOjRRyuvr5GPbNEXt3mUvw4/yFDhgaN6iJE6Ghwo61NuNYyECBgRUo2OeR7ZMnSQoQ6dV5UI0A4fdXUhzk6fO'.
'JGfdm8gR8ZoGRhjBfqdCMKM7BAUUBjNUFRAgWffJKEfW9sQQJ5wBSjzSuhsBPEHypMYIsnn6FEiQAcXPCJFVaUUsoWNLRTBy7O'.
'EDKECQssE4QQf5AixhSzodQAH9jsaAcc9gxTCxCH4BKGB4QYcOQCS8LYxgZ8QMURcmqcA44SI4gTyAlFcHlNGIWEOWaZKqRjRh'.
'mZaAeRBUsEsMsIKYwjyJx1HuIDKnmKiSSfgzQzRx/uOfSEFjKwMAqiSCxKJ5f5+BDpnkyqMIgsmggwE0S2eP/Txi6GgCpqo2us'.
'cOqkqQ6CCDdcnEKOYwRx0QcdidBqK6NcRgDJrmT2iogiMtJoUBcCHDBGsrWmECqzh3iwBrSUTjvEkyHQRtAsMLzDCLfLjuqDl7'.
'p8I2m0MPqqyCLCWKAPMQRtU8YX8byrrLe3AoGLl2E8c2+5+wrxZ6ADbcBPAI8Y3O23o67AShiu6MlrvtMu4gg6l9Zz0g9NyNBK'.
'xvAiDK6z5Eq7ryPutPoqMqYEcAnMB3PcKM0i46tqyY5IgsQ9tmDyz8Bj/KxxvEM/WzTEJksCzZ/RPI2GC1LHLHSzVj9sc9bU/N'.
'nBPxsw8QQgcMctt9yN1G33JHhjoPfefP8tAMMtazNwhhb+FG744YgnrjjiU8SyTicC5YBPB/1UbvnlmGeuOeYdQA6aWwEBADs=' );
$errorIcon = imagecreatefromstring( $errorIconData );
//-----------------------------------------
// Draw the error box
//-----------------------------------------
$ysize = 80 + $messageheight;
$x = ( $width - 400 ) / 2;
$y = ( $height - $ysize ) / 2;
imagecopymerge( $errorimage, $errorIcon, $x + 20, $y + 20, 0, 0, imagesx( $errorIcon ), imagesy( $errorIcon ), 100 );
imagedestroy( $errorIcon );
imagerectangle( $errorimage, $x+1, $y+1, $x+400, $y+$ysize+1, $grey );
imagerectangle( $errorimage, $x, $y, $x+399, $y+$ysize, $black );
//-----------------------------------------
// Display the error text
//-----------------------------------------
$message = 'Error generating graph';
if ( $this->use_ttf )
{
imagettftext( $errorimage, "20", 0, $x+101, $y+48, $grey, $this->options['font'], $message );
imagettftext( $errorimage, "20", 0, $x+100, $y+47, $black, $this->options['font'], $message );
if ( $this->debug )
{
imagettftext( $errorimage, "14", 0, $x+21, $y+101, $grey, $this->options['font'], $errormessage );
imagettftext( $errorimage, "14", 0, $x+20, $y+100, $black, $this->options['font'], $errormessage );
}
}
else
{
ImageString( $errorimage, 5, $x+101, $y+31, $message, $grey );
ImageString( $errorimage, 5, $x+100, $y+30, $message, $black );
if ( $this->debug )
{
$msgarray = explode( "\r\n", $errormessage );
$line = $y+90;
foreach( $msgarray as $msgline )
{
ImageString( $errorimage, 3, $x+21, $line+1, $msgline, $grey );
ImageString( $errorimage, 3, $x+20, $line, $msgline, $black );
$line = $line + imagefontheight( 3 ) + 10;
}
}
}
//-----------------------------------------
// Flush image
//-----------------------------------------
header('Content-type: image/png');
imagepng($errorimage);
imagedestroy($errorimage);
}
}
?>