function pmarg_test($call_SetMarginsPixels, $args_SetMarginsPixels, $call_SetPlotAreaPixels, $args_SetPlotAreaPixels, $return_margins)
{
global $data, $margins_override, $plotarea_override;
$p = new PHPlot_pv(PLOT_WIDTH, PLOT_HEIGHT);
$p->SetTitle("Unused Title Goes Here");
$p->SetDataType('data-data');
$p->SetDataValues($data);
$p->SetPlotType('lines');
$p->SetXTickLabelPos('none');
$p->SetXTickIncrement(1.0);
$p->SetYTickIncrement(10.0);
$p->SetYTickPos('both');
$p->SetYTickLabelPos('both');
$p->SetDrawXGrid(False);
$p->SetDrawYGrid(False);
$p->SetXTitle("Two Line\nX Axis Title");
$p->SetYTitle("Three Line\nY Axis\nTitle");
# Variant cases:
if ($call_SetMarginsPixels) {
call_user_func_array(array($p, 'SetMarginsPixels'), array_mask($margins_override, $args_SetMarginsPixels, 4));
}
if ($call_SetPlotAreaPixels) {
call_user_func_array(array($p, 'SetPlotAreaPixels'), array_mask($plotarea_override, $args_SetPlotAreaPixels, 4));
}
# Produce but don't output the image. Comment out to test the test.
$p->SetPrintImage(False);
# Produce the graph:
$p->DrawGraph();
# Return the resulting margins or coordinates, as requested.
$plot_area = $p->GET_plot_area();
if ($return_margins) {
return array($plot_area[0], PLOT_WIDTH - $plot_area[2], $plot_area[1], PLOT_HEIGHT - $plot_area[3]);
}
return $plot_area;
}
{
public function GET_rgb_array()
{
return $this->rgb_array;
}
}
$p = new PHPlot_pv(800, 700);
# Use internal color map rgb_array to get a list of colors:
$colors = array_keys($p->GET_rgb_array());
sort($colors);
$nc = count($colors);
# Make a data array with 1 point, $nc data sets:
$dp = array('');
for ($i = 0; $i < $nc; $i++) {
$dp[] = $nc - $i;
}
$data = array($dp);
$p->SetPlotType('bars');
$p->SetDataType('text-data');
$p->SetDataValues($data);
# Use all colors:
$p->SetDataColors($colors);
$p->SetShading(0);
# Make a legend with all the color names:
$p->SetLegend($colors);
$p->SetPlotAreaWorld(0.1, 0, NULL, NULL);
$p->SetTitle('PHPlot Default Color Map');
$p->SetXTickLabelPos('none');
$p->SetXTickPos('none');
$p->SetYTickIncrement(1);
$p->DrawGraph();
