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Special Forums News, Links, Events and Announcements Software Releases - RSS News Openchart2 1.4 (Default branch)
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Old 04-08-2008
Openchart2 1.4 (Default branch)
Image Openchart2 is a simple charting and plotting library designed for incorporation with a variety of Java applications. The library can generate two dimensional bar, pie, radar, and scatter charts with customized titles, axis labels, legends, and colors. The simplicity of the library is its strongest feature. Openchart2 is a branch of the original JOpenChart library. License: GNU Lesser General Public License (LGPL) Changes:
The newest version of Openchart2 introduces refactored coordinate system code to improve extendability and functionality. A box coordinate system, which frames the chart in a box with more traditional centered axes labels, has been added to the library. Version 1.4 also contains a new dot plot chart and associated optimized models for fast visualization of large quantities of data. Radar plots have been improved significantly, plotting grids on the radar plot itself rather than relying on confusing coordinate system.Image

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spreadsheet::writeexcel::chart::pie

Spreadsheet::WriteExcel::Chart::Pie(3pm)		User Contributed Perl Documentation		  Spreadsheet::WriteExcel::Chart::Pie(3pm)

NAME

       Pie - A writer class for Excel Pie charts.

SYNOPSIS

       To create a simple Excel file with a Pie chart using Spreadsheet::WriteExcel:

	   #!/usr/bin/perl -w

	   use strict;
	   use Spreadsheet::WriteExcel;

	   my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
	   my $worksheet = $workbook->add_worksheet();

	   my $chart	 = $workbook->add_chart( type => 'pie' );

	   # Configure the chart.
	   $chart->add_series(
	       categories => '=Sheet1!$A$2:$A$7',
	       values	  => '=Sheet1!$B$2:$B$7',
	   );

	   # Add the worksheet data the chart refers to.
	   my $data = [
	       [ 'Category', 2, 3, 4, 5, 6, 7 ],
	       [ 'Value',    1, 4, 5, 2, 1, 5 ],
	   ];

	   $worksheet->write( 'A1', $data );

	   __END__

DESCRIPTION

       This module implements Pie charts for Spreadsheet::WriteExcel. The chart object is created via the Workbook "add_chart()" method:

	   my $chart = $workbook->add_chart( type => 'pie' );

       Once the object is created it can be configured via the following methods that are common to all chart classes:

	   $chart->add_series();
	   $chart->set_title();

       These methods are explained in detail in Spreadsheet::WriteExcel::Chart. Class specific methods or settings, if any, are explained below.

Pie Chart Methods
       There aren't currently any pie chart specific methods. See the TODO section of Spreadsheet::WriteExcel::Chart.

       A Pie chart doesn't have an X or Y axis so the following common chart methods are ignored.

	   $chart->set_x_axis();
	   $chart->set_y_axis();

EXAMPLE

       Here is a complete example that demonstrates most of the available features when creating a chart.

	   #!/usr/bin/perl -w

	   use strict;
	   use Spreadsheet::WriteExcel;

	   my $workbook  = Spreadsheet::WriteExcel->new( 'chart_pie.xls' );
	   my $worksheet = $workbook->add_worksheet();
	   my $bold	 = $workbook->add_format( bold => 1 );

	   # Add the worksheet data that the charts will refer to.
	   my $headings = [ 'Category', 'Values' ];
	   my $data = [
	       [ 'Apple', 'Cherry', 'Pecan' ],
	       [ 60,	   30,	     10     ],
	   ];

	   $worksheet->write( 'A1', $headings, $bold );
	   $worksheet->write( 'A2', $data );

	   # Create a new chart object. In this case an embedded chart.
	   my $chart = $workbook->add_chart( type => 'pie', embedded => 1 );

	   # Configure the series.
	   $chart->add_series(
	       name	  => 'Pie sales data',
	       categories => '=Sheet1!$A$2:$A$4',
	       values	  => '=Sheet1!$B$2:$B$4',
	   );

	   # Add a title.
	   $chart->set_title( name => 'Popular Pie Types' );

	   # Insert the chart into the worksheet (with an offset).
	   $worksheet->insert_chart( 'C2', $chart, 25, 10 );

	   __END__

AUTHOR

       John McNamara jmcnamara@cpan.org

COPYRIGHT

       Copyright MM-MMX, John McNamara.

       All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.

perl v5.10.1							    2010-02-02				  Spreadsheet::WriteExcel::Chart::Pie(3pm)