This example illustrates setting an axis to log scale using
Axis.setLogScale3.
[File: perldemo/logaxis.pl] (The CGI version is available as "perldemo_cgi/logaxis.pl".)
#!/usr/bin/perl
use perlchartdir;
sub createChart
{
my $img = shift;
#The data for the chart
my $data = [100, 125, 260, 147, 67];
my $labels = ["Mon", "Tue", "Wed", "Thu", "Fri"];
#Create a XYChart object of size 200 x 180 pixels
my $c = new XYChart(200, 180);
#Set the plot area at (30, 10) and of size 140 x 130 pixels
$c->setPlotArea(30, 10, 140, 130);
#Ise log scale axis if required
if ($img == "1") {
$c->yAxis()->setLogScale3();
}
#Set the labels on the x axis
$c->xAxis()->setLabels($labels);
#Add a color bar layer using the given data. Use a 1 pixel 3D border for the
#bars.
$c->addBarLayer3($data)->setBorderColor(-1, 1);
#output the chart
$c->makeChart("logaxis$img.png")
}
createChart(0);
createChart(1);
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