ChartDirector 7.0 (PHP Edition)

Multi-Layer Gantt Chart




This example demonstrates a gantt chart containing two layers for the planned and actual dates.

The two layers are created using XYChart.addBoxWhiskerLayer. The bar width of the top layer is set using BaseBoxLayer.setDataWidth to a narrow width so that it will not block the bottom layer.

In this example, the color of the top layer is a pattern color created using an 4 x 4 in-memory pattern with BaseChart.patternColor.

Source Code Listing

[File: phpdemo/layergantt.php]
<?php require_once("../lib/phpchartdir.php"); # the names of the tasks $labels = array("Market Research", "Define Specifications", "Overall Archiecture", "Project Planning", "Detail Design", "Software Development", "Test Plan", "Testing and QA", "User Documentation"); # the planned start dates and end dates for the tasks $startDate = array(chartTime(2004, 8, 16), chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(2004, 9, 20), chartTime(2004, 9, 27), chartTime(2004, 10, 4), chartTime(2004, 10, 25), chartTime(2004, 11, 1), chartTime(2004, 11, 8)); $endDate = array(chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(2004, 9, 27), chartTime( 2004, 10, 4), chartTime(2004, 10, 11), chartTime(2004, 11, 8), chartTime(2004, 11, 8), chartTime(2004, 11, 22), chartTime(2004, 11, 22)); # the actual start dates and end dates for the tasks up to now $actualStartDate = array(chartTime(2004, 8, 16), chartTime(2004, 8, 27), chartTime(2004, 9, 9), chartTime(2004, 9, 18), chartTime(2004, 9, 22)); $actualEndDate = array(chartTime(2004, 8, 27), chartTime(2004, 9, 9), chartTime(2004, 9, 27), chartTime(2004, 10, 2), chartTime(2004, 10, 8)); # Create a XYChart object of size 620 x 280 pixels. Set background color to light green (ccffcc) # with 1 pixel 3D border effect. $c = new XYChart(620, 280, 0xccffcc, 0x000000, 1); # Add a title to the chart using 15 points Times Bold Itatic font, with white (ffffff) text on a # dark green (0x6000) background $c->addTitle("Multi-Layer Gantt Chart Demo", "Times New Roman Bold Italic", 15, 0xffffff )->setBackground(0x006000); # Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative white/grey background. # Enable both horizontal and vertical grids by setting their colors to grey (c0c0c0). Set vertical # major grid (represents month boundaries) 2 pixels in width $c->setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, LineColor, 0xc0c0c0, 0xc0c0c0)->setGridWidth( 2, 1, 1, 1); # swap the x and y axes to create a horziontal box-whisker chart $c->swapXY(); # Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with ticks every 7 days # (1 week) $c->yAxis->setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 * 7); # Add a red (ff0000) dash line to represent the current day $c->yAxis->addMark(chartTime(2004, 10, 8), $c->dashLineColor(0xff0000, DashLine)); # Set multi-style axis label formatting. Month labels are in Arial Bold font in "mmm d" format. # Weekly labels just show the day of month and use minor tick (by using '-' as first character of # format string). $c->yAxis->setMultiFormat(StartOfMonthFilter(), "<*font=Arial Bold*>{value|mmm d}", StartOfDayFilter(), "-{value|d}"); # Set the y-axis to shown on the top (right + swapXY = top) $c->setYAxisOnRight(); # Set the labels on the x axis $c->xAxis->setLabels($labels); # Reverse the x-axis scale so that it points downwards. $c->xAxis->setReverse(); # Set the horizontal ticks and grid lines to be between the bars $c->xAxis->setTickOffset(0.5); # Use blue (0000aa) as the color for the planned schedule $plannedColor = 0x0000aa; # Use a red hash pattern as the color for the actual dates. The pattern is created as a 4 x 4 bitmap # defined in memory as an array of colors. $hashPattern = array(0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xffffff); $actualColor = $c->patternColor($hashPattern, 4); # Add a box whisker layer to represent the actual dates. We add the actual dates layer first, so it # will be the top layer. $actualLayer = $c->addBoxLayer($actualStartDate, $actualEndDate, $actualColor, "Actual"); # Set the bar height to 8 pixels so they will not block the bottom bar $actualLayer->setDataWidth(8); # Add a box-whisker layer to represent the planned schedule date $c->addBoxLayer($startDate, $endDate, $plannedColor, "Planned")->setBorderColor(SameAsMainColor); # Add a legend box on the top right corner (595, 60) of the plot area with 8 pt Arial Bold font. Use # a semi-transparent grey (80808080) background. $b = $c->addLegend(595, 60, false, "Arial Bold", 8); $b->setAlignment(TopRight); $b->setBackground(0x80808080, -1, 2); # Output the chart $viewer = new WebChartViewer("chart1"); $viewer->setChart($c, SVG); # Include tool tip for the chart $viewer->setImageMap($c->getHTMLImageMap("", "", "title='{xLabel} ({dataSetName}): {top|mmm dd, yyyy} to {bottom|mmm dd, yyyy}'")); ?> <!DOCTYPE html> <html> <head> <title>Multi-Layer Gantt 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;"> Multi-Layer Gantt 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>