- BUGS AND LIMITATIONS
- LICENCE AND COPYRIGHT
VS::Chart - Simple module to create beautifully looking charts
use VS::Chart; my $chart = VS::Chart->new; .. Add data to $chart here ... $chart->add(@row); $chart->render( type => "line", as => "png", to => "my_chart.png" );
Defaults should look great
This module produces charts from data. Such charts might be line, pie and boxes. Currently only linecharts are implemented. The renderer uses Cairo Graphics (http://www.cairographics/), a graphics library for creating vector graphics, to produce crisp and correct output. Currently we limit output support to PNG, PDF and SVG altho Cairo may support more.
- new ( %ATTRIBUTES, [ no_defaults => 1 ] )
Creates a new chart definition and sets any attributes passed in %ATTRIBUTES. If no_defaults is specified the chart will not be populated with default values when rendered.
Returns a list of supported renderers.
- set ( %ATTRIBUTES )
Sets a number of attributes. It is possible to set an attribute for a specific dataset by prepending the key with <column<gt>:. Columns starts at 0.
- get ( ATTRIBUTE )
Get the value of an attribute.
- has ( ATTRIBUTE )
Check if an attribute exists.
- add ( @ROW )
Adds the data in @ROW to the chart. If the first element is a Date::Simple object the first column will be marked as the index column provider and sorted accordingly when rendered.
- render ( type => TYPE, to => PATH | CODE, [ as => FORMAT ] )
Renders the chart using the renderer specified by TYPE and saves the output as PATH. By default the FORMAT is png but pdf or svg may be used instead.
If the format is png it's possible to pass a CODE reference instead of a path in to. This will be called with the reference itself as the first argument and data as second. It may be called several times during rendering.
- dataset ( COLUMN )
VS::Chart::Dataset-instance representing the data for the given column. Return undef if no such column has been added yet via add.
Returns the number of rows of data added to the chart.
Please report any bugs or feature requests to
firstname.lastname@example.org, or through the web interface at http://rt.cpan.org.
Commercial support is available from Versed Solutions. Contact author for details.
Claes Jakobsson, Versed Solutions
Copyright (c) 2007-2008, Versed Solutions
<email@example.com>. All rights reserved.
This software is released under the MIT license cited below.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.