252 lines
9.4 KiB
HTML
252 lines
9.4 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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<title>Advanced Graphs and Charts for PHP</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<link rel=STYLESHEET type="text/css" href="../../images/960.css" />
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<link rel=STYLESHEET type="text/css" href="../../images/jpprodstyle.css" />
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</head>
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<body>
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<!-- Title area -->
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<div class='container_12 header'>
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<div class='grid_4'>
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<a href='http://www.jpowered.com'><img style='border-width: 0px;' src='../../images/jpowered.gif' width='270' height='60' align='left' alt='JPowered.com' /></a>
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</div>
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<div class='grid_8 omega product_title'>
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<h1>Advanced Graphs and Charts for PHP</h1>
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</div>
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</div>
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<!-- top menu bar -->
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<div class='container_12'>
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<div class='grid_12 innm'>
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<ul>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/">Graph Home</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/buy-now.htm" title="Pricing Options and obtaining License keys">Pricing / License Options</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/demos/" title="View the Online Demos here">Online Demos</a> </li>
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<li> <a href="../../documentation/index.htm">Documentation</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/tutorials/" title="Online Tutorials">Tutorials</a> </li>
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</ul>
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</div>
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</div>
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<!-- main content -->
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<div class='container_12 main_content'>
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<div class='grid_9'>
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<h2>Utilising Request Parameters</h2>
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<p>In this example we again use the included data function method but
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this time we pass a request parameter through on the IMG tag. The data function
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will then produce the graph data based on the value of the request parameter.</p>
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<p>This method has a variety of uses including displaying graph data dynamically
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based upon user form selection.</p>
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<img src="../../graph/vertical-cylinder-graph.php?
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datascript=../demo/examples/data/dataFunctionParams.php&
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config=../demo/examples/data/configFile.txt&
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customParam=8"
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width=700
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height=400 />
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<p> </p>
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<p>Here is the IMG tag which invokes the graphing software which dynamically creates the
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graph image at page load time.</p>
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<textarea class="jpcodeblock" style="width: 600px;">
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<img src="../../graph/vertical-cylinder-graph.php?
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datascript=../demo/examples/data/dataFunctionParams.php&
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config=../demo/examples/data/configFile.txt&
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customParam=8"
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width=700
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height=400 />
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</textarea>
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<p>Note the extra parameter 'customParam=8' on the IMG tag URL. This is
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used by the data function to create the data for the chart.</p>
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<p>Here we tell the software to load the configuration options from the
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file <a href='./data/configFile.txt'>configFile.txt</a> and include the data
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function dataFunctionParams.php (code below)</p>
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<textarea class="jpcodeblock" style="width: 600px; height: 400px;">
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/*
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* The graphing software will look for a function named datascript()
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* at runtime. If found the graph will call this to acquire the
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* graph data.
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*/
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function datascript () {
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/*
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* Create the Data Array
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*
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* Here we demonstrate how the graphs can be used to display
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* data based upon the value of request parameters.
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*
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* In this trivial example we use the value of a request
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* parameter to generate the data values.
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*
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*/
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$dataArray = array('series1' => array(50*$_REQUEST['customParam'], 75*$_REQUEST['customParam'], 125*$_REQUEST['customParam'], 430*$_REQUEST['customParam']),
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'series2' => array(200*$_REQUEST['customParam'], 210*$_REQUEST['customParam'], 260*$_REQUEST['customParam'], 240*$_REQUEST['customParam']),
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'series3' => array(830*$_REQUEST['customParam'], 740*$_REQUEST['customParam'], 620*$_REQUEST['customParam'], 320*$_REQUEST['customParam']));
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/*
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* Convert the data into the array format required
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* by the graphing software
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*
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* The format required is a one dimensional array
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* which contains a text for each line of data.
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*
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*/
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$dataLines = array();
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/*
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* write out the data in the format required for the graphing software
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*/
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foreach ($dataArray['series1'] as $dataIndex => $dataValue)
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{
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$dataLines[] = 'data' . ($dataIndex+1) . 'series1: ' . $dataValue;
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}
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foreach ($dataArray['series2'] as $dataIndex => $dataValue)
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{
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$dataLines[] = 'data' . ($dataIndex+1) . 'series2: ' . $dataValue;
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}
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foreach ($dataArray['series3'] as $dataIndex => $dataValue)
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{
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$dataLines[] = 'data' . ($dataIndex+1) . 'series3: ' . $dataValue;
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}
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/*
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* return the $dataLines array to the
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* graphing software
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*/
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return $dataLines;
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}
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</textarea>
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<p><strong>Note:</strong> if a closing PHP tag (?>)is added at the end
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of the data function file then it is vital that no characters appear
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after that tag. If even a space character exists then the graphing
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image will not be produced. It is recommend that the closing PHP tag is
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omitted.</p>
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<p><strong>Note:</strong> the URLs supplied for both the configuration and
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data are relative URLs. The URLs are relative to the location of the
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graphing software and NOT this page.</p>
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<p>If the graph does not display then see the <a href="../../documentation/troubleShooting.htm">Troubleshooting guide</a> for details on how to resolve the problem.</p>
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<p> </p>
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</div>
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<div class='grid_3'>
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<p><a href="../../index.htm">Package Index</a></p>
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<p><a href="../../documentation/index.htm">Documentation</a></p>
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<p><a href="../../documentation/troubleShooting.htm">Troubleshooting Guide</a></p>
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<p><a href="http://www.jpowered.com/support.htm">Support</a></p>
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<h4>Examples</h4>
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<ul>
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<li><a href='../examples/dataFiles.htm'>Graphing Data from files</a></li>
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<li><a href='../examples/scripts.htm'>Data from external scripts</a></li>
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<li><a href='../examples/datafunction.htm'>Custom data function</a></li>
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<li><a href='../examples/requestParams.htm'>Utilising request parameters</a></li>
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<li><a href='../examples/database.htm'>Plotting data from a database</a></li>
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<li><a href='../examples/interface.htm'>Database interface scripts</a></li>
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<li><a href='../examples/multiScales.htm'>Multiple Scales, text and images</a></li>
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<li><a href='../examples/csvfile.htm'>Graphing CSV files</a></li>
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</ul>
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<h4>Basic Chart Styles</h4>
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<ul>
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<li><a href="../../demo/piechart/index.htm">Pie Charts</a></li>
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<li><a href="../../demo/xyscatter/index.htm">X-Y Scatter Graphs</a></li>
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<li><a href="../../demo/bubblechart/index.htm">Bubble Charts</a></li>
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<li><a href="../../demo/areagraph/index.htm">Area Graphs</a></li>
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<li><a href="../../demo/linegraph/index.htm">Line Graphs</a></li>
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</ul>
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<h4>Bar Graphs</h4>
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<ul>
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<li><a href="../../demo/vbar/index.htm">Vertical Bar Graphs</a></li>
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<li><a href="../../demo/svbar/index.htm">Stacked Vertical Bar Graphs</a></li>
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<li><a href="../../demo/hbar/index.htm">Horizontal Bar Graphs</a></li>
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<li><a href="../../demo/shbar/index.htm">Stacked Horizontal Bar Graphs</a></li>
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</ul>
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<h4>Cylinder Charts</h4>
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<ul>
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<li><a href="../../demo/cylinder-Vbar/index.htm">Vertical Cylinder Graphs</a></li>
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<li><a href="../../demo/cylinder-SVbar/index.htm">Stacked Vertical Cylinder Graphs</a></li>
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<li><a href="../../demo/cylinder-Hbar/index.htm">Horizontal Cylinder Graphs</a></li>
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<li><a href="../../demo/cylinder-SHbar/index.htm">Stacked Horizontal Cylinder Graphs</a></li>
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</ul>
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<h4>Combination Charts</h4>
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<ul>
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<li><a href="../../demo/combi-Area-SVbar/index.htm">Area and Stacked Vertical Bar Graph</a></li>
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<li><a href="../../demo/combi-Area-Vbar/index.htm">Area and Vertical Bar Graph</a></li>
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<li><a href="../../demo/combi-Line-SVbar/index.htm">Line and Stacked Vertical Bar Graph</a></li>
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<li><a href="../../demo/combi-Line-Vbar/index.htm">Line and Vertical Bar Graph</a></li>
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</ul>
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<p> </p>
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</div>
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</div>
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<div class='footer'>
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<!-- bottom menu bar -->
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<div class='container_12'>
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<div class='grid_12 innm'>
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<ul>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/">Graph Home</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/buy-now.htm" title="Pricing Options and obtaining License keys">Pricing / License Options</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/demos/" title="View the Online Demos here">Online Demos</a> </li>
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<li> <a href="../../documentation/index.htm">Documentation</a> </li>
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<li> <a href="http://www.jpowered.com/php-scripts/adv-graph-chart/tutorials/" title="Online Tutorials">Tutorials</a> </li>
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</ul>
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</div>
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</div>
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<!-- footer -->
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<div class='container_12'>
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<div class="grid_12 mc">[<a href="http://www.jpowered.com/"> JPowered.com </a>] [<a href="http://www.jpowered.com/products.htm" title="More software components for web applications"> More Products </a>] [<a href="http://www.jpowered.com/support.htm" title="For Help and Support, contact us here">Support </a>]</div>
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<div class="grid_12 cprt">Copyright © 2011 - 2014 Neutron Solutions Limited - All rights reserved.</div>
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</div>
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</div>
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</body>
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</html> |