#!/usr/bin/perl
# In the sample code, the ChartDirector for Perl module is assumed to be in "../lib"
use File::Basename;
use lib (dirname($0)."/../lib") =~ /(.*)/;
use perlchartdir;
# The XY points for the scatter chart
my $dataX = [150, 400, 300, 1500, 800];
my $dataY = [0.6, 8, 5.4, 2, 4];
# The labels for the points
my $labels = ["Nano\n100", "SpeedTron\n200 Lite", "SpeedTron\n200", "Marathon\nExtra",
"Marathon\n2000"];
# Create a XYChart object of size 450 x 400 pixels
my $c = new XYChart(450, 400);
# Set the plotarea at (55, 40) and of size 350 x 300 pixels, with a light grey border (0xc0c0c0).
# Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
$c->setPlotArea(55, 40, 350, 300, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);
# Add a title to the chart using 18pt Times Bold Itatic font.
$c->addTitle("Product Comparison Chart", "timesbi.ttf", 18);
# Add a title to the y axis using 12pt Arial Bold Italic font
$c->yAxis()->setTitle("Capacity (tons)", "arialbi.ttf", 12);
# Add a title to the x axis using 12pt Arial Bold Italic font
$c->xAxis()->setTitle("Range (miles)", "arialbi.ttf", 12);
# Set the axes line width to 3 pixels
$c->xAxis()->setWidth(3);
$c->yAxis()->setWidth(3);
# Add the data as a scatter chart layer, using a 15 pixel circle as the symbol
my $layer = $c->addScatterLayer($dataX, $dataY, "", $perlchartdir::GlassSphereShape, 15, 0xff3333,
0xff3333);
# Add labels to the chart as an extra field
$layer->addExtraField($labels);
# Set the data label format to display the extra field
$layer->setDataLabelFormat("{field0}");
# Use 8pt Arial Bold to display the labels
my $textbox = $layer->setDataLabelStyle("arialbd.ttf", 8);
# Set the background to purple with a 1 pixel 3D border
$textbox->setBackground(0xcc99ff, $perlchartdir::Transparent, 1);
# Put the text box 4 pixels to the right of the data point
$textbox->setAlignment($perlchartdir::Left);
$textbox->setPos(4, 0);
# Output the chart
$c->makeChart("scatterlabels.png") |
