#!/usr/bin/perl
use perlchartdir;
#The data for the area chart
my $data0 = [42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56,
60, 70, 76, 63, 67, 75, 64, 51];
my $data1 = [50, 45, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58,
59, 73, 77, 84, 82, 80, 84, 89];
my $data2 = [61, 79, 85, 66, 53, 39, 24, 21, 37, 56, 37, 22, 21, 33, 13, 17, 4,
23, 16, 25, 9, 10, 5, 7, 16];
my $labels = ["0", "-", "2", "-", "4", "-", "6", "-", "8", "-", "10", "-", "12",
"-", "14", "-", "16", "-", "18", "-", "20", "-", "22", "-", "24"];
#Create a XYChart object of size 500 x 300 pixels
my $c = new XYChart(500, 300);
#Set the plotarea at (90, 30) and of size 300 x 240 pixels.
$c->setPlotArea(90, 30, 300, 240);
#Add a legend box at (405, 100)
$c->addLegend(405, 100);
#Add a title to the chart
$c->addTitle("Daily System Load");
#Add a title to the y axis. Draw the title upright (font angle = 0)
$c->yAxis()->setTitle("Database\nQueries\n(per sec)")->setFontAngle(0);
#Set the labels on the x axis
$c->xAxis()->setLabels($labels);
#Add an area layer
my $layer = $c->addAreaLayer();
#Draw the area layer in 3D
$layer->set3D();
#Add the three data sets to the area layer
$layer->addDataSet($data0, -1, "Server # 1");
$layer->addDataSet($data1, -1, "Server # 2");
$layer->addDataSet($data2, -1, "Server # 3");
#output the chart
$c->makeChart("threedstackarea.png")
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