Multiple Axes

perldemo\multiaxes.pl
#!/usr/bin/perl

# The ChartDirector for Perl module is assumed to be in "../lib"
use File::Basename;
use lib (dirname($0)."/../lib") =~ /(.*)/;

use perlchartdir;

# Data for the chart
my $data0 = [1700, 3900, 2900, 3800, 4100, 4600, 2900, 4100, 4400, 5700, 5900, 5200, 3700, 3400,
    5100, 5600, 5600, 6000, 7000, 7600, 6300, 6700, 7500, 6400, 8800];
my $data1 = [500, 550, 670, 990, 820, 730, 800, 720, 730, 790, 860, 800, 840, 680, 740, 890, 680,
    790, 730, 770, 840, 820, 800, 840, 670];
my $data2 = [46, 68, 35, 33, 38, 20, 12, 18, 15, 23, 30, 24, 28, 15, 21, 26, 46, 42, 38, 25, 23, 32,
    24, 20, 25];
my $data3 = [0.84, 0.82, 0.82, 0.38, 0.25, 0.52, 0.54, 0.52, 0.38, 0.51, 0.46, 0.29, 0.5, 0.55,
    0.47, 0.34, 0.52, 0.33, 0.21, 0.3, 0.25, 0.15, 0.18, 0.22, 0.14];

# Labels for the chart
my $labels = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15",
    "16", "17", "18", "19", "20", "21", "22", "23", "24"];

# Create a XYChart object of size 600 x 360 pixels. Use a vertical gradient color from sky blue
# (aaccff) to white (ffffff) as background. Set border to grey (888888). Use rounded corners. Enable
# soft drop shadow.
my $c = new XYChart(600, 360);
$c->setBackground($c->linearGradientColor(0, 0, 0, $c->getHeight(), 0xaaccff, 0xffffff), 0x888888);
$c->setRoundedFrame();
$c->setDropShadow();

# Add a title box to the chart using 15pt Arial Bold Italic font. Set top margin to 16 pixels.
my $title = $c->addTitle("Multiple Axes Demonstration", "Arial Bold Italic", 15);
$title->setMargin2(0, 0, 16, 0);

# Set the plotarea at (100, 80) and of size 400 x 230 pixels, with white (ffffff) background. Use
# grey #(aaaaa) dotted lines for both horizontal and vertical grid lines.
$c->setPlotArea(100, 80, 400, 230, 0xffffff, -1, -1, $c->dashLineColor(0xaaaaaa,
    $perlchartdir::DotLine), -1);

# Add a legend box with the bottom center anchored at (300, 80) (top center of the plot area). Use
# horizontal layout, and 8 points Arial Bold font. Set background and border to transparent.
my $legendBox = $c->addLegend(300, 80, 0, "Arial Bold", 8);
$legendBox->setAlignment($perlchartdir::BottomCenter);
$legendBox->setBackground($perlchartdir::Transparent, $perlchartdir::Transparent);

# Set the labels on the x axis.
$c->xAxis()->setLabels($labels);

# Display 1 out of 3 labels on the x-axis.
$c->xAxis()->setLabelStep(3);

# Add a title to the x-axis
$c->xAxis()->setTitle("Hour of Day");

# Add a title on top of the primary (left) y axis.
$c->yAxis()->setTitle("Power\n(Watt)")->setAlignment($perlchartdir::TopLeft2);
# Set the axis, label and title colors for the primary y axis to red (c00000) to match the first
# data set
$c->yAxis()->setColors(0xcc0000, 0xcc0000, 0xcc0000);

# Add a title on top of the secondary (right) y axis.
$c->yAxis2()->setTitle("Load\n(Mbps)")->setAlignment($perlchartdir::TopRight2);
# Set the axis, label and title colors for the secondary y axis to green (00800000) to match the
# second data set
$c->yAxis2()->setColors(0x008000, 0x008000, 0x008000);

# Add the third y-axis at 50 pixels to the left of the plot area
my $leftAxis = $c->addAxis($perlchartdir::Left, 50);
# Add a title on top of the third y axis.
$leftAxis->setTitle("Temp\n(C)")->setAlignment($perlchartdir::TopLeft2);
# Set the axis, label and title colors for the third y axis to blue (0000cc) to match the third data
# set
$leftAxis->setColors(0x0000cc, 0x0000cc, 0x0000cc);

# Add the fouth y-axis at 50 pixels to the right of the plot area
my $rightAxis = $c->addAxis($perlchartdir::Right, 50);
# Add a title on top of the fourth y axis.
$rightAxis->setTitle("Error\n(%)")->setAlignment($perlchartdir::TopRight2);
# Set the axis, label and title colors for the fourth y axis to purple (880088) to match the fourth
# data set
$rightAxis->setColors(0x880088, 0x880088, 0x880088);

# Add a line layer to for the first data set using red (c00000) color, with a line width of 2 pixels
my $layer0 = $c->addLineLayer($data0, 0xcc0000, "Power");
$layer0->setLineWidth(2);

# Add a line layer to for the second data set using green (00c0000) color, with a line width of 2
# pixels. Bind the layer to the secondary y-axis.
my $layer1 = $c->addLineLayer($data1, 0x008000, "Load");
$layer1->setLineWidth(2);
$layer1->setUseYAxis2();

# Add a line layer to for the third data set using blue (0000cc) color, with a line width of 2
# pixels. Bind the layer to the third y-axis.
my $layer2 = $c->addLineLayer($data2, 0x0000cc, "Temperature");
$layer2->setLineWidth(2);
$layer2->setUseYAxis($leftAxis);

# Add a line layer to for the fourth data set using purple (880088) color, with a line width of 2
# pixels. Bind the layer to the fourth y-axis.
my $layer3 = $c->addLineLayer($data3, 0x880088, "Error Rate");
$layer3->setLineWidth(2);
$layer3->setUseYAxis($rightAxis);

# Output the chart
$c->makeChart("multiaxes.png");