Multi-Color Gantt Chart

[File: phpdemo/colorgantt.php]
<?php
require_once("../lib/phpchartdir.php");

# The tasks for the gantt chart
$labels = array("Market Research", "Define Specifications", "Overall Archiecture",
    "Project Planning", "Detail Design", "Software Development", "Test Plan", "Testing and QA",
    "User Documentation");

# The task index, start date, end date and color for each bar
$taskNo = array(0, 0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 8);
$startDate = array(chartTime(2018, 8, 16), chartTime(2018, 10, 4), chartTime(2018, 8, 30),
    chartTime(2018, 9, 13), chartTime(2018, 9, 20), chartTime(2018, 9, 27), chartTime(2018, 10, 4),
    chartTime(2018, 10, 4), chartTime(2018, 10, 25), chartTime(2018, 11, 1), chartTime(2018, 10, 18
    ), chartTime(2018, 11, 8));
$endDate = array(chartTime(2018, 8, 30), chartTime(2018, 10, 18), chartTime(2018, 9, 13), chartTime(
    2018, 9, 27), chartTime(2018, 10, 4), chartTime(2018, 10, 11), chartTime(2018, 11, 8),
    chartTime(2018, 10, 18), chartTime(2018, 11, 8), chartTime(2018, 11, 22), chartTime(2018, 11, 1
    ), chartTime(2018, 11, 22));
$colors = array(0x00cc00, 0x00cc00, 0x00cc00, 0x0000cc, 0x0000cc, 0xcc0000, 0xcc0000, 0x0000cc,
    0xcc0000, 0xcc0000, 0x00cc00, 0xcc0000);

# Create a XYChart object of size 620 x 325 pixels. Set background color to light red (0xffcccc),
# with 1 pixel 3D border effect.
$c = new XYChart(620, 325, 0xffcccc, 0x000000, 1);

# Add a title to the chart using 15 points Times Bold Itatic font, with white (ffffff) text on a
# dark red (800000) background
$c->addTitle("Mutli-Color Gantt Chart Demo", "Times New Roman Bold Italic", 15, 0xffffff
    )->setBackground(0x800000);

# 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, 2018 to Nov 22, 2018, with ticks every 7 days
# (1 week)
$c->yAxis->setDateScale(chartTime(2018, 8, 16), chartTime(2018, 11, 22), 86400 * 7);

# 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);

# Add some symbols to the chart to represent milestones. The symbols are added using scatter layers.
# We need to specify the task index, date, name, symbol shape, size and color.
$c->addScatterLayer(array(1), array(chartTime(2018, 9, 13)), "Milestone 1", Cross2Shape(), 13,
    0xffff00)->setHTMLImageMap("{disable}");
$c->addScatterLayer(array(3), array(chartTime(2018, 10, 4)), "Milestone 2", StarShape(5), 15,
    0xff00ff)->setHTMLImageMap("{disable}");
$c->addScatterLayer(array(5), array(chartTime(2018, 11, 8)), "Milestone 3", TriangleSymbol, 13,
    0xff9933)->setHTMLImageMap("{disable}");

# Add a multi-color box-whisker layer to represent the gantt bars
$layer = $c->addBoxWhiskerLayer2($startDate, $endDate, null, null, null, $colors);
$layer->setXData($taskNo);
$layer->setBorderColor(SameAsMainColor);

# Divide the plot area height ( = 200 in this chart) by the number of tasks to get the height of
# each slot. Use 80% of that as the bar height.
$layer->setDataWidth((int)(200 * 0.8 / count($labels)));

# Add a legend box at (140, 265) - bottom of the plot area. Use 8pt Arial Bold as the font with
# auto-grid layout. Set the width to the same width as the plot area. Set the backgorund to grey
# (dddddd).
$legendBox = $c->addLegend2(140, 265, AutoGrid, "Arial Bold", 8);
$legendBox->setWidth(461);
$legendBox->setBackground(0xdddddd);

# The keys for the scatter layers (milestone symbols) will automatically be added to the legend box.
# We just need to add keys to show the meanings of the bar colors.
$legendBox->addKey("Market Team", 0x00cc00);
$legendBox->addKey("Planning Team", 0x0000cc);
$legendBox->addKey("Development Team", 0xcc0000);

# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($c, SVG);

# Include tool tip for the chart
$viewer->setImageMap($c->getHTMLImageMap("", "",
    "title='{xLabel}: {top|mmm dd, yyyy} to {bottom|mmm dd, yyyy}'"));
?>

<!DOCTYPE html>
<html>
<head>
    <title>Multi-Color 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-Color 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>