
This example demonstrates loading external image files as data symbols by using DataSet.setDataSymbol2.
ChartDirector Ver 5.0 (PHP Edition)
Custom Symbols
Source Code Listing
<?php require_once("../lib/phpchartdir.php"); # The data for the chart $data0 = array(600, 800, 1200, 1500, 1800, 1900, 2000, 1950); $data1 = array(300, 450, 500, 1000, 1500, 1600, 1650, 1600); # The labels for the chart $labels = array("1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002"); # Create a XYChart object of size 450 x 250 pixels, with a pale yellow (0xffffc0) # background, a black border, and 1 pixel 3D border effect. $c = new XYChart(450, 250, 0xffffc0, 0, 1); # Set the plotarea at (60, 45) and of size 360 x 170 pixels, using white (0xffffff) # as the plot area background color. Turn on both horizontal and vertical grid lines # with light grey color (0xc0c0c0) $c->setPlotArea(60, 45, 360, 170, 0xffffff, -1, -1, 0xc0c0c0, -1); # Add a legend box at (60, 20) (top of the chart) with horizontal layout. Use 8 pts # Arial Bold font. Set the background and border color to Transparent. $legendObj = $c->addLegend(60, 20, false, "arialbd.ttf", 8); $legendObj->setBackground(Transparent); # Add a title to the chart using 12 pts Arial Bold/white font. Use a 1 x 2 bitmap # pattern as the background. $textBoxObj = $c->addTitle("Information Resource Usage", "arialbd.ttf", 12, 0xffffff) ; $textBoxObj->setBackground($c->patternColor(array(0x000040, 0x000080), 2)); # Set the labels on the x axis $c->xAxis->setLabels($labels); # Reserve 8 pixels margins at both side of the x axis to avoid the first and last # symbols drawing outside of the plot area $c->xAxis->setMargin(8, 8); # Add a title to the y axis $c->yAxis->setTitle("Population"); # Add a line layer to the chart $layer = $c->addLineLayer2(); # Add the first line using small_user.png as the symbol. $dataSetObj = $layer->addDataSet($data0, 0xcf4040, "Users"); $dataSetObj->setDataSymbol2(dirname(__FILE__)."/small_user.png"); # Add the first line using small_computer.png as the symbol. $dataSetObj = $layer->addDataSet($data1, 0x40cf40, "Computers"); $dataSetObj->setDataSymbol2(dirname(__FILE__)."/small_computer.png"); # Set the line width to 3 pixels $layer->setLineWidth(3); # Output the chart header("Content-type: image/png"); print($c->makeChart2(PNG)); ?> |