ChartDirector 7.0 (PHP Edition)

Pattern Area Chart




This example demonstrates using a pattern for filling the area in an area chart, together with a number of chart formatting features.

Source Code Listing

[File: phpdemo/patternarea.php]
<?php require_once("../lib/phpchartdir.php"); # The data for the area chart $data = array(3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1, 6.0, 5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2); # The labels for the area chart $labels = array("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"); # Create a XYChart object of size 300 x 180 pixels. Set the background to pale yellow (0xffffa0) # with a black border (0x0) $c = new XYChart(300, 180, 0xffffa0, 0x000000); # Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to white (0xffffff). # Set both horizontal and vertical grid lines to black (&H0&) dotted lines (pattern code 0x0103) $c->setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, $c->dashLineColor(0x000000, 0x000103), $c->dashLineColor(0x000000, 0x000103)); # Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as the background. # Set the border to black (0x0). $c->addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10)->setBackground($c->patternColor(array( 0xb0b0f0, 0xe0e0ff), 2), 0x000000); # Add a title to the y axis $c->yAxis->setTitle("mm per hour"); # Set the labels on the x axis. $c->xAxis->setLabels($labels); # Display 1 out of 3 labels on the x-axis. $c->xAxis->setLabelStep(3); # Add an area layer to the chart $layer = $c->addAreaLayer(); # Load a snow pattern from an external file "snow.png". $snowPattern = $c->patternColor2(dirname(__FILE__)."/snow.png"); # Add a data set to the area layer using the snow pattern as the fill color. Use deep blue # (0x0000ff) as the area border line color (&H0000ff&) $layer->addDataSet($data)->setDataColor($snowPattern, 0x0000ff); # Set the line width to 2 pixels to highlight the line $layer->setLineWidth(2); # Output the chart $viewer = new WebChartViewer("chart1"); $viewer->setChart($c, SVG); # Include tool tip for the chart $viewer->setImageMap($c->getHTMLImageMap("", "", "title='{xLabel}:00 - {value} mm/hour'")); ?> <!DOCTYPE html> <html> <head> <title>Pattern Area Chart</title> <!-- Include ChartDirector Javascript Library to support chart interactions --> <script type="text/javascript" src="cdjcv.js"></script> </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> Pattern Area Chart </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.php?file=<?=basename(__FILE__)?>">View Chart Source Code</a> </div> <!-- ****** Here is the chart image ****** --> <?php echo $viewer->renderHTML(); ?> </body> </html>