$myData->setScatterSeriePicture(0, "resources/chart_line.png");
/* Create the pChart object */
$myPicture = new pImage(400, 400, $myData);
/* Draw the background */
$Settings = array("R" => 170, "G" => 183, "B" => 87, "Dash" => 1, "DashR" => 190, "DashG" => 203, "DashB" => 107);
$myPicture->drawFilledRectangle(0, 0, 400, 400, $Settings);
/* Overlay with a gradient */
$Settings = array("StartR" => 219, "StartG" => 231, "StartB" => 139, "EndR" => 1, "EndG" => 138, "EndB" => 68, "Alpha" => 50);
$myPicture->drawGradientArea(0, 0, 400, 400, DIRECTION_VERTICAL, $Settings);
$myPicture->drawGradientArea(0, 0, 400, 20, DIRECTION_VERTICAL, array("StartR" => 0, "StartG" => 0, "StartB" => 0, "EndR" => 50, "EndG" => 50, "EndB" => 50, "Alpha" => 80));
/* Write the picture title */
$myPicture->setFontProperties(array("FontName" => "../fonts/Silkscreen.ttf", "FontSize" => 6));
$myPicture->drawText(10, 13, "drawScatterLineChart() - Draw a scatter line chart", array("R" => 255, "G" => 255, "B" => 255));
/* Add a border to the picture */
$myPicture->drawRectangle(0, 0, 399, 399, array("R" => 0, "G" => 0, "B" => 0));
/* Set the default font */
$myPicture->setFontProperties(array("FontName" => "../fonts/pf_arma_five.ttf", "FontSize" => 6));
/* Set the graph area */
$myPicture->setGraphArea(50, 50, 350, 350);
/* Create the Scatter chart object */
$myScatter = new pScatter($myPicture, $myData);
/* Draw the scale */
$myScatter->drawScatterScale();
/* Turn on shadow computing */
$myPicture->setShadow(TRUE, array("X" => 1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 10));
/* Draw a scatter plot chart */
$myScatter->drawScatterLineChart();
/* Draw the legend */
$myScatter->drawScatterLegend(270, 375, array("Mode" => LEGEND_HORIZONTAL, "Style" => LEGEND_NOBORDER));
/* Render the picture (choose the best way) */
$myPicture->autoOutput("pictures/example.drawScatterLineChart.trigo.png");
 protected function plotScatterChart(pImage $picture, pData $data)
 {
     $myScatter = new pScatter($picture, $data);
     //        // calculationg limits
     //        $axis_id = 1;
     //        $rd = $data->getData();
     //        $series = $rd['Series'];
     //        $x = $series['x-axis']['Data'];
     //        $median = array();
     //        $percentil_u = array();
     //        $percentil_l = array();
     //        foreach ($series as $key => $serie) {
     //
     //            if ('x-axis' == $key) {
     //                continue;
     //            }
     //
     ////            $avg[] = $data->getSerieAverage($key);
     ////            $median[] = $data->getSeriePercentile($key, 50);
     //            $percentil_u[] = $data->getSeriePercentile($key, 95);
     //            $percentil_l[] = $data->getSeriePercentile($key, 5);
     //
     //
     ////            $max_p[] = max($percentil);
     ////            $min_p[] = min($percentil);
     //        }
     //
     ////        $margin = sfConfig::get('chart_y_axis_margin_ratio', 1.5);
     //
     ////        $ub = max($median) + $margin * (max($percentil_u) - max($median));
     ////        $lb = min($median) - $margin * (min($median) - min($percentil_u));
     //        if (count($percentil_u)) {
     //            $ub = max($percentil_u);
     //            $lb = min($percentil_l);
     //        } else {
     //            // no series available
     //            $ub = 100;
     //            $lb = 0;
     //        }
     //
     ////        print_r($median);
     ////        print_r($percentil_l);
     ////        print_r($percentil_u);
     ////        print_r($ub);
     ////        print_r($lb);
     //        $AxisBoundaries = array(
     //            0 => array("Min" => $x[0], "Max" => max($x)),
     //            1 => array("Min" => $lb, "Max" => $ub),
     //        );
     //print_r($AxisBoundaries);
     $Settings = array("Pos" => SCALE_POS_LEFTRIGHT, "Mode" => SCALE_MODE_FLOATING, "DrawXLines" => FALSE, "DrawYLines" => ALL, "GridTicks" => 1, "GridR" => 168, "GridG" => 186, "GridB" => 203, "GridAlpha" => 30, "AxisR" => 40, "AxisG" => 40, "AxisB" => 43, "AxisAlpha" => 100, "TickR" => 40, "TickG" => 40, "TickB" => 43, "TickAlpha" => 50, "DrawSubTicks" => 1, "SubTickR" => 168, "SubTickG" => 186, "SubTickB" => 203, "SubTickAlpha" => 100, "DrawArrows" => false, "CycleBackground" => false);
     $myScatter->drawScatterScale($Settings);
     $picture->setShadow(TRUE, array("X" => 1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 10));
     // if we have at least one y-serie
     $pd = $data->getData();
     if (count($pd['Series']) > 1) {
         $myScatter->drawScatterLineChart();
         //$myScatter->drawScatterPlotChart();
         $Config = array("FontName" => sfConfig::get('sf_web_dir') . "/fonts/Ubuntu-R.ttf", "FontSize" => 6, "FontR" => 40, "FontG" => 40, "FontB" => 43, "Margin" => 6, "Alpha" => 100, "BoxSize" => 5, "Style" => LEGEND_NOBORDER, "Mode" => LEGEND_VERTICAL, "Family" => LEGEND_FAMILY_LINE);
         $myScatter->drawScatterLegend(655, 50, $Config);
     }
 }