#!/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 data for the line chart
my $data0 = [42, 49, 33, 38, 64, 56, 29, 41, 44, 57, 59, 42];
my $data1 = [65, 75, 47, 34, 42, 49, 73, 62, 90, 69, 66, 78];
my $data2 = [36, 28, 25, 28, 38, 20, 22, 30, 25, 33, 30, 24];
my $labels = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
# Create a XYChart object of size 600 x 400 pixels
my $c = new XYChart(600, 400);
# Add a title to the chart using 18pt Times Bold Italic font
my $title = $c->addTitle("Product Line Global Revenue", "timesbi.ttf", 18);
# Tentatively set the plotarea at (50, 55) and of (chart_width - 100) x (chart_height - 120) pixels
# in size. Use a vertical gradient color from sky blue (aaccff) t0 light blue (f9f9ff) as
# background. Set both horizontal and vertical grid lines to dotted semi-transprent black
# (aa000000).
my $plotArea = $c->setPlotArea(50, 55, $c->getWidth() - 100, $c->getHeight() - 120,
$c->linearGradientColor(0, 55, 0, 55 + $c->getHeight() - 120, 0xaaccff, 0xf9fcff), -1, -1,
$c->dashLineColor(0xaa000000, $perlchartdir::DotLine), -1);
# Add a legend box and anchored the top center at the horizontal center of the chart, just under the
# title. Use 10pt Arial Bold as font, with transparent background and border.
my $legendBox = $c->addLegend($c->getWidth() / 2, $title->getHeight(), 0, "arialbd.ttf", 10);
$legendBox->setAlignment($perlchartdir::TopCenter);
$legendBox->setBackground($perlchartdir::Transparent, $perlchartdir::Transparent);
# Set y-axis title using 10 points Arial Bold Italic font, label style to 8 points Arial Bold, and
# axis color to transparent
$c->yAxis()->setTitle("Revenue (USD millions)", "arialbi.ttf", 10);
$c->yAxis()->setLabelStyle("arialbd.ttf", 8);
$c->yAxis()->setColors($perlchartdir::Transparent);
# Set y-axis tick density to 30 pixels. ChartDirector auto-scaling will use this as the guideline
# when putting ticks on the y-axis.
$c->yAxis()->setTickDensity(30);
# Add a line layer to the chart
my $layer = $c->addLineLayer2();
# Set the line width to 3 pixels
$layer->setLineWidth(3);
# Add the three data sets to the line layer, using circles, diamands and X shapes as symbols
$layer->addDataSet($data0, 0xff0000, "Quantum Computer")->setDataSymbol($perlchartdir::CircleSymbol,
9);
$layer->addDataSet($data1, 0x00ff00, "Atom Synthesizer")->setDataSymbol(
$perlchartdir::DiamondSymbol, 11);
$layer->addDataSet($data2, 0xff6600, "Proton Cannon")->setDataSymbol(perlchartdir::Cross2Shape(), 11
);
# Set the x axis labels
$c->xAxis()->setLabels($labels);
# Convert the labels on the x-axis to a CDMLTable
my $table = $c->xAxis()->makeLabelTable();
# Set the default top/bottom margins of the cells to 3 pixels
$table->getStyle()->setMargin2(0, 0, 3, 3);
# Use Arial Bold as the font for the first row
$table->getRowStyle(0)->setFontStyle("arialbd.ttf");
#
# We can add more information to the table. In this sample code, we add the data series and the
# legend icons to the table.
#
# Add 3 more rows to the table. Set the background of the 1st and 3rd rows to light grey (eeeeee).
$table->appendRow()->setBackground(0xeeeeee, $perlchartdir::LineColor);
$table->appendRow();
$table->appendRow()->setBackground(0xeeeeee, $perlchartdir::LineColor);
# Put the values of the 3 data series to the cells in the 3 rows
for(my $i = 0; $i < scalar(@$data0); ++$i) {
$table->setText($i, 1, $data0->[$i]);
$table->setText($i, 2, $data1->[$i]);
$table->setText($i, 3, $data2->[$i]);
}
# Insert a column on the left for the legend icons. Use 5 pixels left/right margins and 3 pixels
# top/bottom margins for the cells in this column.
$table->insertCol(0)->setMargin2(5, 5, 3, 3);
# The top cell is set to transparent, so it is invisible
$table->getCell(0, 0)->setBackground($perlchartdir::Transparent, $perlchartdir::Transparent);
# The other 3 cells are set to the legend icons of the 3 data series
$table->setText(0, 1, $layer->getLegendIcon(0));
$table->setText(0, 2, $layer->getLegendIcon(1));
$table->setText(0, 3, $layer->getLegendIcon(2));
# Layout legend box first, so we can get its size
$c->layoutLegend();
# Adjust the plot area size, such that the bounding box (inclusive of axes) is 2 pixels from the
# left, right and bottom edge, and is just under the legend box.
$c->packPlotArea(2, $legendBox->getTopY() + $legendBox->getHeight(), $c->getWidth() - 3,
$c->getHeight() - 3);
# After determining the exact plot area position, we may adjust the legend box and the title
# positions so that they are centered relative to the plot area (instead of the chart)
$legendBox->setPos($plotArea->getLeftX() + ($plotArea->getWidth() - $legendBox->getWidth()) / 2,
$legendBox->getTopY());
$title->setPos($plotArea->getLeftX() + ($plotArea->getWidth() - $title->getWidth()) / 2,
$title->getTopY());
# Output the chart
$c->makeChart("datatable.png") |
