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This example demonstrates the effects of different bar gaps configured using BarLayer.setBarGap.
ChartDirector 6.0 (Perl Edition)
Bar Gap
Source Code Listing
#!/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; sub createChart { my $chartIndex = shift; my $bargap = $chartIndex * 0.25 - 0.25; # The data for the bar chart my $data = [100, 125, 245, 147, 67]; # The labels for the bar chart my $labels = ["Mon", "Tue", "Wed", "Thu", "Fri"]; # Create a XYChart object of size 150 x 150 pixels my $c = new XYChart(150, 150); # Set the plotarea at (27, 20) and of size 120 x 100 pixels $c->setPlotArea(27, 20, 120, 100); # Set the labels on the x axis $c->xAxis()->setLabels($labels); if ($bargap >= 0) { # Add a title to display to bar gap using 8pt Arial font $c->addTitle(" Bar Gap = $bargap", "arial.ttf", 8); } else { # Use negative value to mean TouchBar $c->addTitle(" Bar Gap = TouchBar", "arial.ttf", 8); $bargap = $perlchartdir::TouchBar; } # Add a bar chart layer using the given data and set the bar gap $c->addBarLayer($data)->setBarGap($bargap); # Output the chart $c->makeChart("gapbar$chartIndex.png") } createChart(0); createChart(1); createChart(2); createChart(3); createChart(4); createChart(5); |
#!/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; # Get HTTP query parameters use CGI; my $query = new CGI; # This script can draw different charts depending on the chartIndex $chartIndex = int($query->param("img")); my $bargap = $chartIndex * 0.25 - 0.25; # The data for the bar chart my $data = [100, 125, 245, 147, 67]; # The labels for the bar chart my $labels = ["Mon", "Tue", "Wed", "Thu", "Fri"]; # Create a XYChart object of size 150 x 150 pixels my $c = new XYChart(150, 150); # Set the plotarea at (27, 20) and of size 120 x 100 pixels $c->setPlotArea(27, 20, 120, 100); # Set the labels on the x axis $c->xAxis()->setLabels($labels); if ($bargap >= 0) { # Add a title to display to bar gap using 8pt Arial font $c->addTitle(" Bar Gap = $bargap", "arial.ttf", 8); } else { # Use negative value to mean TouchBar $c->addTitle(" Bar Gap = TouchBar", "arial.ttf", 8); $bargap = $perlchartdir::TouchBar; } # Add a bar chart layer using the given data and set the bar gap $c->addBarLayer($data)->setBarGap($bargap); # Output the chart binmode(STDOUT); print "Content-type: image/png\n\n"; print $c->makeChart2($perlchartdir::PNG); |