--- a/lib/pChart2.1.0/examples/example.drawScatterBestFit.php +++ b/lib/pChart2.1.0/examples/example.drawScatterBestFit.php @@ -1,1 +1,81 @@ - +<?php + /* CAT:Mathematical */ + + /* pChart library inclusions */ + include("../class/pData.class.php"); + include("../class/pDraw.class.php"); + include("../class/pImage.class.php"); + include("../class/pScatter.class.php"); + + /* Create the pData object */ + $myData = new pData(); + + /* Create the X axis and the binded series */ + for ($i=0;$i<=360;$i=$i+10) { $myData->addPoints(rand(1,20)*10+rand(0,$i),"Probe 1"); } + for ($i=0;$i<=360;$i=$i+10) { $myData->addPoints(rand(1,2)*10+rand(0,$i),"Probe 2"); } + $myData->setAxisName(0,"X-Index"); + $myData->setAxisXY(0,AXIS_X); + $myData->setAxisPosition(0,AXIS_POSITION_TOP); + + /* Create the Y axis and the binded series */ + for ($i=0;$i<=360;$i=$i+10) { $myData->addPoints($i,"Probe 3"); } + $myData->setSerieOnAxis("Probe 3",1); + $myData->setAxisName(1,"Y-Index"); + $myData->setAxisXY(1,AXIS_Y); + $myData->setAxisPosition(1,AXIS_POSITION_LEFT); + + /* Create the 1st scatter chart binding */ + $myData->setScatterSerie("Probe 1","Probe 3",0); + $myData->setScatterSerieDescription(0,"This year"); + $myData->setScatterSerieColor(0,array("R"=>0,"G"=>0,"B"=>0)); + + /* Create the 2nd scatter chart binding */ + $myData->setScatterSerie("Probe 2","Probe 3",1); + $myData->setScatterSerieDescription(1,"Last Year"); + + /* 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,"drawScatterBestFit() - Linear regression",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(50,60,350,360); + + /* 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->drawScatterPlotChart(); + + /* Draw the legend */ + $myScatter->drawScatterLegend(280,380,array("Mode"=>LEGEND_HORIZONTAL,"Style"=>LEGEND_NOBORDER)); + + /* Draw the line of best fit */ + $myScatter->drawScatterBestFit(); + + /* Render the picture (choose the best way) */ + $myPicture->autoOutput("pictures/example.drawScatterBestFit.png"); +?>