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Chart::Clicker::Tutorial.3pm
Langue: en
Version: 2010-05-09 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
Chart::Clicker::Tutorial - A Tutorial for using Chart::ClickerDESCRIPTION
This document aims to provide a tutorial for using Chart::Clicker.DISCLAIMER
This is a work in progress. If you find errors or would like to make contributions, drop me a line!EXAMPLES
Simple chart from a single data source
# grab the needed modules use Chart::Clicker; use Chart::Clicker::Data::Series; use Chart::Clicker::Data::DataSet; # build the chart my $chart = Chart::Clicker->new; # build the series (static here, will usually be supplied arrayrefs from elsewhere) my $series = Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 52,74,52,82,14 ], ); # build the dataset my $dataset = Chart::Clicker::Data::DataSet->new( series => [ $series ], ); # add the dataset to the chart $chart->add_to_datasets($dataset); # write the chart to a file $chart->write_output('chart.png');
Simple chart from multiple data sources
use Chart::Clicker; use Chart::Clicker::Data::Series; use Chart::Clicker::Data::DataSet; my $chart = Chart::Clicker->new; # start an array that will hold the series data my $series1 = Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 52,74,52,82,14 ] ); my $series2 = Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 34,67,89,45,67 ] ); # add the array of series data to the dataset my $dataset = Chart::Clicker::Data::DataSet->new( series => [ $series1, $series2 ] ); $chart->add_to_datasets($dataset); $chart->write_output('chart.png');
Simple chart with multiple data sources and custom colors
use Chart::Clicker; use Chart::Clicker::Data::Series; use Chart::Clicker::Data::DataSet; # some new modules, these are only needed if you want to monkey with color changing use Graphics::Color::RGB; use Chart::Clicker::Drawing::ColorAllocator; # build the color allocator my $ca = Chart::Clicker::Drawing::ColorAllocator->new; # this hash is simply here to make things readable and cleaner, you can always call G::C::R inline my $red = Graphics::Color::RGB->new({ red => .75, green => 0, blue => 0, alpha => .8 }); my $green = Graphics::Color::RGB->new({ red => 0,green => .75, blue=> 0, alpha=> .8 }); my $blue = Graphics::Color::RGB->new({ red => 0, green => 0, blue => .75, alpha => .8 }), my $chart = Chart::Clicker->new; # Create an empty dataset that we can add to my $dataset = Chart::Clicker::Data::DataSet->new; $dataset->add_to_series(Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 52,74,52,82,14 ] )); # add a color - note that the order of colors and the order of the # series must match, the first series will use the first color and so on # see contexts and axes for alternate ways of doing this $ca->add_to_colors($blue); $dataset->add_to_series(Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 34,67,89,45,67 ] )); # add a second color $ca->add_to_colors($red); $dataset->add_to_series(Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 11,22,33,44,55 ] )); # add a third color $ca->add_to_colors($green); $chart->add_to_datasets($dataset); # assign the color allocator to the chart $chart->color_allocator($ca); $chart->write_output('chart.png');
Example 4 : Simple chart with a different render type
use Chart::Clicker; use Chart::Clicker::Data::Series; use Chart::Clicker::Data::DataSet; # add in the module of the renerer(s) you want to use use Chart::Clicker::Renderer::Area; my $chart = Chart::Clicker->new; my $series = Chart::Clicker::Data::Series->new( keys => [ 1,2,3,4,5 ], values => [ 52,74,52,82,14 ] ); my $dataset = Chart::Clicker::Data::DataSet->new( series => [ $series ] ); $chart->add_to_datasets($dataset); # build the renderer to use my $renderer = Chart::Clicker::Renderer::Area->new( opacity => .75, ); # assign the renderer to the default context $chart->set_renderer($renderer); $chart->write_output('chart.png');
Example 5 : Width and Height
my $chart = Chart::Clicker->new(width => 1024, height => 768);
Example 5 : PDF (or SVG or PS)
my $chart = Chart::Clicker->new(format => 'pdf'); # Create the rest of your chart normally $chart->write_output('chart.pdf');
AUTHOR
Cory G Watson <gphat@cpan.org>CONTRIBUTORS
Steve BradfordLICENSE
You can redistribute and/or modify this code under the same terms as Perl itself.Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre