V-Linear Meter Orientation

perldemo\vlinearmeterorientation.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;

sub createChart
{
    my $chartIndex = shift;

    # The value to display on the meter
    my $value = 75.35;

    # Create a LinearMeter object of size 70 x 240 pixels with very light grey (0xeeeeee) backgruond
    # and a light grey (0xccccccc) 3-pixel thick rounded frame
    my $m = new LinearMeter(70, 240, 0xeeeeee, 0xcccccc);
    $m->setRoundedFrame($perlchartdir::Transparent);
    $m->setThickFrame(3);

    # This example demonstrates putting the text labels at the left or right side by setting the
    # label alignment and scale position.
    if ($chartIndex == 0) {
        $m->setMeter(28, 18, 20, 205, $perlchartdir::Left);
    } else {
        $m->setMeter(20, 18, 20, 205, $perlchartdir::Right);
    }

    # Set meter scale from 0 - 100, with a tick every 10 units
    $m->setScale(0, 100, 10);

    # Add a smooth color scale to the meter
    my $smoothColorScale = [0, 0x6666ff, 25, 0x00bbbb, 50, 0x00ff00, 75, 0xffff00, 100, 0xff0000];
    $m->addColorScale($smoothColorScale);

    # Add a blue (0x0000cc) pointer at the specified value
    $m->addPointer($value, 0x0000cc);

    # Output the chart
    $m->makeChart("vlinearmeterorientation$chartIndex.png");
}

createChart(0);
createChart(1);