Bar Chart Only
okay, this was extraordinarily easy to do - i love pChart! JD, youve coded it very well for people who want to explore and extend it
the changes (to pChart2.0.7) i had to make to accomplish this:
pImage.class: line 63:
Code:
/* Pixel Offset Coordinate Map */
var $PixelOffsetCoordinates = NULL; // Populated in Drawing functions, accessable to instantialiser
var $PixelOffsetCoordinates = NULL; // Populated in Drawing functions, accessable to instantialiser
pDraw.class: line 3056:
Code:
$this->PixelOffsetCoordinates[$SerieName]=array();
pDraw.class: line 3056:
Code:
$this->PixelOffsetCoordinates[$SerieName][$Key]=array(array($X+$XOffset+$XSpace,$Y2),array($X+$XOffset+$XSize-$XSpace,$Y1));
then in your chart-generating php file:
Code:
if (isset($_GET['output'])) {
$chart->Stroke();
exit;
} else {
$map="<map name='report_map>";
foreach ($graph_data->Data['Series'] as $SeriesName => $Serie) {
if ($SeriesName==$graph_data->Data['Abscissa']) continue;
foreach ($this->chart->PixelOffsetCoordinates[$SeriesName] as $key=>$pos) {
$map.="<area shape='rect' coords='".ceil($pos[0][0]).",".ceil($pos[0][1]).",".ceil($pos[1][0]).",".ceil($pos[1][1])."' title='".$SeriesName." ".$graph_data->Data['Series'][$graph_data->Data['Abscissa']]['Data'][$key].": ".number_format($graph_data->Data['Series'][$SeriesName]['Data'][$key])."' />";
}
}
$map.="</map>";
return "<img src='".$chart_image_url."&output' usemap='#report_map' />".$map;
}
$chart->Stroke();
exit;
} else {
$map="<map name='report_map>";
foreach ($graph_data->Data['Series'] as $SeriesName => $Serie) {
if ($SeriesName==$graph_data->Data['Abscissa']) continue;
foreach ($this->chart->PixelOffsetCoordinates[$SeriesName] as $key=>$pos) {
$map.="<area shape='rect' coords='".ceil($pos[0][0]).",".ceil($pos[0][1]).",".ceil($pos[1][0]).",".ceil($pos[1][1])."' title='".$SeriesName." ".$graph_data->Data['Series'][$graph_data->Data['Abscissa']]['Data'][$key].": ".number_format($graph_data->Data['Series'][$SeriesName]['Data'][$key])."' />";
}
}
$map.="</map>";
return "<img src='".$chart_image_url."&output' usemap='#report_map' />".$map;
}
