ChartDirector Ver 3.1 (PHP Edition Edition)

Depth Bar Chart




ChartDirector allows a XY chart to containing multiple layers of the same or different types. In this example, all layers are 3D bar layers. The bars are drawn in semi-transparent colors to avoid the bars on the front hiding the bars at the back.

Source Code Listing

[File: phpdemo/depthbar.php".]
<?php require_once("../lib/phpchartdir.php"); #The data for the bar chart $data0 = array(100, 125, 245, 147, 67); $data1 = array(85, 156, 179, 211, 123); $data2 = array(97, 87, 56, 267, 157); #The labels for the bar chart $labels = array("Mon", "Tue", "Wed", "Thu", "Fri"); #Create a XYChart object of size 500 x 320 pixels $c = new XYChart(500, 320); #Set the plotarea at (100, 40) and of size 280 x 240 pixels $c->setPlotArea(100, 40, 280, 240); #Add a legend box at (405, 100) $c->addLegend(405, 100); #Add a title to the chart $c->addTitle("Weekday Network Load"); #Add a title to the y axis. Draw the title upright (font angle = 0) $titleObj = $c->yAxis->setTitle("Average\nWorkload\n(MBytes\nPer Hour)"); $titleObj->setFontAngle(0); #Set the labels on the x axis $c->xAxis->setLabels($labels); #Add three bar layers, each representing one data set. The bars are drawn in #semi-transparent colors. $c->addBarLayer($data0, 0x808080ff, "Server # 1", 5); $c->addBarLayer($data1, 0x80ff0000, "Server # 2", 5); $c->addBarLayer($data2, 0x8000ff00, "Server # 3", 5); #output the chart header("Content-type: image/png"); print($c->makeChart2(PNG)); ?>