addPoints(array(-4,VOID,VOID,12,8,3,4,5,0,4,6,10),"Probe 1"); $MyData->addPoints(array(3,12,15,8,5,-5,5,-5,-3,4,5,10),"Probe 2"); $MyData->addPoints(array(2,7,5,18,19,22,10,2,6,10,5,6),"Probe 3"); $MyData->setSerieTicks("Probe 2",4); $MyData->setSerieWeight("Probe 3",2); $MyData->setAxisName(0,"Temperatures"); $MyData->addPoints(array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"),"Labels"); $MyData->setSerieDescription("Labels","Months"); $MyData->setAbscissa("Labels"); $MyData->setAbscissaName("Months"); /* Create the pChart object */ $myPicture = new pImage(700,230,$MyData); /* Draw the background */ $Settings = array("R"=>170, "G"=>183, "B"=>87, "Dash"=>1, "DashR"=>190, "DashG"=>203, "DashB"=>107); $myPicture->drawFilledRectangle(0,0,700,230,$Settings); /* Overlay with a gradient */ $Settings = array("StartR"=>219, "StartG"=>231, "StartB"=>139, "EndR"=>1, "EndG"=>138, "EndB"=>68, "Alpha"=>50); $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,$Settings); $myPicture->drawGradientArea(0,0,700,20,DIRECTION_VERTICAL,array("StartR"=>0,"StartG"=>0,"StartB"=>0,"EndR"=>50,"EndG"=>50,"EndB"=>50,"Alpha"=>80)); /* Add a border to the picture */ $myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0)); /* Write the picture title */ $myPicture->setFontProperties(array("FontName"=>"../fonts/Silkscreen.ttf","FontSize"=>6)); $myPicture->drawText(10,13,"drawDerivative() - draw the series slope",array("R"=>255,"G"=>255,"B"=>255)); /* Set the default font */ $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6)); /* Draw the scale and the 1st chart */ $myPicture->setGraphArea(60,40,680,150); $myPicture->drawFilledRectangle(60,40,680,150,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10)); $myPicture->drawScale(array("DrawSubTicks"=>TRUE)); $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10)); $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6)); $myPicture->drawLineChart(array("DisplayValues"=>TRUE,"DisplayColor"=>DISPLAY_AUTO)); /* Draw the series derivative graph */ $myPicture->drawDerivative(array("ShadedSlopeBox"=>TRUE,"CaptionLine"=>TRUE)); /* Write the chart legend */ $myPicture->setFontProperties(array("R"=>255,"G"=>255,"B"=>255)); $myPicture->drawLegend(560,8,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL)); /* Render the picture (choose the best way) */ $myPicture->autoOutput("pictures/example.drawDerivative.png"); ?>