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Language Reference » Image Maps » replaceImageMapValues
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replaceImageMapValues - Replace the values recorded in the imagemap This function allows you to replace the values recorded in the image map for a given data serie. Calling this function
replaceImageMapValues($Title, $Values);Where : Title is the title associated (by default the serie name)
Values is an array of values that will replace the original ones. Sample script This will create a file named /tmp/BarChart.labels.map to store the image map coordinates on the server.
/* Library settings */
define("CLASS_PATH", "../../../class");
define("FONT_PATH", "../../../fonts");
/* pChart library inclusions */
include(CLASS_PATH."/pData.class.php");
include(CLASS_PATH."/pDraw.class.php");
include(CLASS_PATH."/pImage.class.php");
/* Create and populate the pData object */
$MyData = new pData();
$MyData->addPoints(array(150,220,300,250,420,200,300,200,100),"Server A");
$MyData->addPoints(array(140,VOID,340,300,320,300,200,100,50),"Server B");
$MyData->setAxisName(0,"Hits");
$MyData->addPoints(array("January","February","March","April","May","Juin","July","August","September"),"Months");
$MyData->setSerieDescription("Months","Month");
$MyData->setAbscissa("Months");
/* Create the pChart object */
$myPicture = new pImage(700,230,$MyData);
/* Retrieve the image map */
if (isset($_GET["ImageMap"]) || isset($_POST["ImageMap"]))
$myPicture->dumpImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart.labels","../tmp");
/* Set the image map name */
$myPicture->initialiseImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart.labels","../tmp");
/* Turn of Antialiasing */
$myPicture->Antialias = FALSE;
/* 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);
/* Add a border to the picture */
$myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0));
/* Set the default font */
$myPicture->setFontProperties(array("FontName"=>FONT_PATH."/pf_arma_five.ttf","FontSize"=>6));
/* Define the chart area */
$myPicture->setGraphArea(60,40,650,200);
/* Draw the scale */
$scaleSettings = array("GridR"=>200,"GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE);
$myPicture->drawScale($scaleSettings);
/* Write the chart legend */
$myPicture->drawLegend(580,12,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
/* Turn on shadow computing */
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
/* Draw the chart */
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
$Settings = array("RecordImageMap"=>TRUE);
$myPicture->drawBarChart($Settings);
/* Replace the labels of the image map */
$Labels = array("Jan: 140","Feb: 0","Mar: 340","Apr: 300","May: 320","Jun: 300","Jul: 200","Aug: 100","Sep: 50");
$myPicture->replaceImageMapValues("Server B", $Labels);
/* Repalce the titles of the image map */
$Titles = array("Jan 2k11","Feb 2k11","Mar 2k11","Apr 2k11","May 2k11","Jun 2k11","Jul 2k11","Aug 2k11","Sep 2k11");
$myPicture->replaceImageMapTitle("Server A", "Second server");
$myPicture->replaceImageMapTitle("Server B", $Titles);
/* Render the picture (choose the best way) */
$myPicture->autoOutput("../tmp/BarChart.labels.png");
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been written by Alex Gorbatchev. pChart and this web site have been created by Jean-Damien POGOLOTTI. This documentation contains 185 pages and 56 comments. 415 users have registered.
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