$myPicture = new pImage(700, 230, $MyData);
/* Turn of Antialiasing */
$myPicture->Antialias = FALSE;
/* Add a border to the picture */
$myPicture->drawRectangle(0, 0, 699, 229, array("R" => 0, "G" => 0, "B" => 0));
/* Write the chart title */
$myPicture->setFontProperties(array("FontName" => "../fonts/Forgotte.ttf", "FontSize" => 11));
$myPicture->drawText(150, 35, "Average temperature", array("FontSize" => 20, "Align" => TEXT_ALIGN_BOTTOMMIDDLE));
/* Set the default font */
$myPicture->setFontProperties(array("FontName" => "../fonts/pf_arma_five.ttf", "FontSize" => 6));
/* Define the chart area */
$myPicture->setGraphArea(60, 40, 680, 200);
/* Draw the scale */
$scaleSettings = array("XMargin" => 10, "YMargin" => 10, "Floating" => TRUE, "GridR" => 200, "GridG" => 200, "GridB" => 200, "DrawSubTicks" => TRUE, "CycleBackground" => TRUE);
$myPicture->drawScale($scaleSettings);
/* Turn on Antialiasing */
$myPicture->Antialias = TRUE;
/* Turn on shadows */
$myPicture->setShadow(TRUE, array("X" => 1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 10));
/* Draw the line chart */
$myPicture->drawPlotChart();
/* Draw the standard mean and the geometric one */
$Mean = $MyData->getSerieAverage("Probe 1");
$GeometricMean = $MyData->getGeometricMean("Probe 1");
$myPicture->drawThreshold($GeometricMean, array("WriteCaption" => TRUE, "Caption" => "Geometric mean"));
$myPicture->drawThreshold($Mean, array("WriteCaption" => TRUE, "Caption" => "Mean", "CaptionAlign" => CAPTION_RIGHT_BOTTOM));
/* Write the computed values */
$myPicture->drawText(550, 20, "Arithmetic average : " . round($Mean, 2));
$myPicture->drawText(550, 30, "Geometric Mean : " . round($GeometricMean, 2));
/* Render the picture (choose the best way) */
$myPicture->autoOutput("pictures/example.geometricMean.png");
