ChartDirector 7.0 (PHP Edition)

Symbol Line Chart (2)




This example demonstrates using symbols to represent data points and using gradient color for plot area background.

Source Code Listing

[File: phpdemo/symbolline2.php]
<?php require_once("../lib/phpchartdir.php"); # The data for the line chart $data0 = array(42, 49, 33, 38, 64, 56, 29, 41, 44, 57, 59, 42); $data1 = array(65, 75, 47, 34, 42, 49, 73, 62, 90, 69, 66, 78); $data2 = array(36, 28, 25, 28, 38, 20, 22, 30, 25, 33, 30, 24); $labels = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"); # Create a XYChart object of size 600 x 375 pixels $c = new XYChart(600, 375); # Add a title to the chart using 18pt Times Bold Italic font $c->addTitle("Product Line Global Revenue", "Times New Roman Bold Italic", 18); # Set the plotarea at (50, 55) and of 500 x 280 pixels in size. Use a vertical gradient color from # light blue (f9f9ff) to sky blue (aaccff) as background. Set border to transparent and grid lines # to white (ffffff). $c->setPlotArea(50, 55, 500, 280, $c->linearGradientColor(0, 55, 0, 335, 0xf9fcff, 0xaaccff), -1, Transparent, 0xffffff); # Add a legend box at (50, 28) using horizontal layout. Use 10pt Arial Bold as font, with # transparent background. $c->addLegend(50, 28, false, "Arial Bold", 10)->setBackground(Transparent); # Set the x axis labels $c->xAxis->setLabels($labels); # Set y-axis tick density to 30 pixels. ChartDirector auto-scaling will use this as the guideline # when putting ticks on the y-axis. $c->yAxis->setTickDensity(30); # Set axis label style to 8pt Arial Bold $c->xAxis->setLabelStyle("Arial Bold", 8); $c->yAxis->setLabelStyle("Arial Bold", 8); # Set axis line width to 2 pixels $c->xAxis->setWidth(2); $c->yAxis->setWidth(2); # Add axis title using 10pt Arial Bold Italic font $c->yAxis->setTitle("Revenue in USD millions", "Arial Bold Italic", 10); # Add a line layer to the chart $layer = $c->addLineLayer2(); # Set the line width to 3 pixels $layer->setLineWidth(3); # Add the three data sets to the line layer, using circles, diamands and X shapes as symbols $layer->addDataSet($data0, 0xff0000, "Quantum Computer")->setDataSymbol(CircleSymbol, 9); $layer->addDataSet($data1, 0x00ff00, "Atom Synthesizer")->setDataSymbol(DiamondSymbol, 11); $layer->addDataSet($data2, 0xff6600, "Proton Cannon")->setDataSymbol(Cross2Shape(), 11); # Output the chart $viewer = new WebChartViewer("chart1"); $viewer->setChart($c, SVG); # Include tool tip for the chart $viewer->setImageMap($c->getHTMLImageMap("", "", "title='Revenue of {dataSetName} in {xLabel}: US\$ {value}M'")); ?> <!DOCTYPE html> <html> <head> <title>Symbol Line Chart (2)</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;"> Symbol Line Chart (2) </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>