/**
* Generate
* Generates the charts from the data passed into it
*
* @param chart Array of data and labels
*
* @return Void Doesn't return anything.
*/
function Generate($chart) {
$this->graph->add(
$PlotArea =& new Image_Graph_Plotarea()
);
$this->graph->_outputImage = false;
switch ($chart['chart_type']) {
case 'column':
// Add grid
$PlotArea->addGridY(new Image_Graph_Grid_Lines());
$PlotArea->addGridX(new Image_Graph_Grid_Lines());
$labels = array_shift($chart['chart_data']);
$legend_labels = array();
$DataSets = array();
foreach ($chart['chart_data'] as $data) {
$Dataset =& new Image_Graph_Dataset_Trivial();
foreach ($data as $key => $value) {
if (!is_numeric($value)) {
if ($key == 0) {
$legend_labels[] = $value;
}
continue;
}
$Dataset->addPoint($key, $value);
}
$DataSets[] =& $Dataset;
}
$PlotMultiple =& new Image_Graph_Plot_Bar_Multiple($DataSets);
$PlotMultiple->spacing(3);
$PlotMultiple->setXValueWidth(1);
$Plot1 =& $PlotArea->addPlot($PlotMultiple);
$noBorder =& new Image_Graph_Line_Solid();
$noBorder->setThickness(0);
// create a Y data value marker
$Marker =& $Plot1->add(new Image_Graph_Marker_Value(IMAGE_GRAPH_VALUE_Y));
//$Marker->setFillColor(0xFFFFFF);
$Marker->setBorderColor(0xFFFFFF);
$PointingMarker =& $Plot1->add(new Image_Graph_Marker_Pointing(0,-10, $Marker));
$PointingMarker->setLineStyle($noBorder);
$Plot1->setMarker($PointingMarker);
$FillArray =& new Image_Graph_Fill_Array();
foreach ($this->colors as $color) {
$FillArray->add(new Image_Graph_Fill_Gradient(IMAGE_GRAPH_GRAD_RADIAL, eval("return 0x{$color};"), eval("return 0x{$color};"), 200));
}
$Plot1->setFillStyle($FillArray);
$AxisX =& $PlotArea->getAxis(IMAGE_GRAPH_AXIS_X);
$AxisX->setDataPreprocessor(
new Image_Graph_DataPreprocessor_Array(
$labels
)
);
$thickAxis =& new Image_Graph_Line_Solid();
$thickAxis->setThickness(2);
$AxisX->setLineStyle($thickAxis);
$AxisX->setLabelInterval(1);
$AxisY =& $PlotArea->getAxis(IMAGE_GRAPH_AXIS_Y);
$AxisY->setLineStyle($thickAxis);
$AxisY->setDataPreprocessor(new Image_Graph_DataPreprocessor_Function("FormatNumber"));
$this->graph->done();
$canvas =& $this->graph->_canvas();
$canvas =& $this->DrawTitle($canvas,$this->title,true);
$this->DrawLegend($canvas,$legend_labels,'column');
break; // case column
case 'pie':
$DataSet =& new Image_Graph_Dataset_Trivial();
$Plot1 =& $PlotArea->addPlot(new Image_Graph_Plot_Pie($DataSet));
$points = $chart['chart_data'][1];
$labels = $chart['chart_data'][0];
foreach ($points as $key => $value) {
if (!is_numeric($value)) { continue; }
$DataSet->addPoint($labels[$key], $value);
}
$PlotArea->hideAxis();
// create a Y data value marker
$Marker =& $Plot1->add(new Image_Graph_Marker_Value(IMAGE_GRAPH_VALUE_X));
$Marker->setFillColor(0xFFFFFF);
$Marker->setBorderColor(0xFFFFFF);
$PointingMarker =& $Plot1->add(new Image_Graph_Marker_Pointing_Angular(40, $Marker));
$Plot1->setMarker($PointingMarker);
$FillArray =& new Image_Graph_Fill_Array();
foreach ($this->colors as $color) {
$FillArray->add(new Image_Graph_Fill_Gradient(IMAGE_GRAPH_GRAD_RADIAL, eval("return 0x{$color};"), eval("return 0x{$color};"), 200));
}
$Plot1->setFillStyle($FillArray);
$Plot1->Radius = 80;
$this->graph->done();
$canvas =& $this->graph->_canvas();
$this->DrawLegend($canvas,$labels,'pie');
$canvas =& $this->DrawTitle($canvas,$this->title);
break; // case pie
}
$this->canvas =& $canvas;
}
