Class: SVG::Graph::BarHorizontal

Inherits:
BarBase show all
Defined in:
lib/SVG/Graph/BarHorizontal.rb

Overview

Create presentation quality SVG horitonzal bar graphs easily

Synopsis

  require 'SVG/Graph/BarHorizontal'

  fields = %w(Jan Feb Mar)
  data_sales_02 = [12, 45, 21]

  graph = SVG::Graph::BarHorizontal.new({
    :height => 500,
    :width => 300,
    :fields => fields,
  })

  graph.add_data({
    :data => data_sales_02,
    :title => 'Sales 2002',
  })

  print "Content-type: image/svg+xml\r\n\r\n"
  print graph.burn

Description

This object aims to allow you to easily create high quality SVG horitonzal bar graphs. You can either use the default style sheet or supply your own. Either way there are many options which can be configured to give you control over how the graph is generated - with or without a key, data elements at each point, title, subtitle etc.

Examples

  • http://germane-software.com/repositories/public/SVG/test/test.rb

See also

  • SVG::Graph::Graph
  • SVG::Graph::Bar
  • SVG::Graph::Line
  • SVG::Graph::Pie
  • SVG::Graph::Plot
  • SVG::Graph::TimeSeries

Author

Sean E. Russell <serATgermaneHYPHENsoftwareDOTcom>

Copyright 2004 Sean E. Russell This software is available under the Ruby license[LICENSE.txt]

Constant Summary

Constants inherited from Graph

KEY_BOX_SIZE

Instance Method Summary

Methods inherited from BarBase

#initialize

Methods inherited from Graph

#add_data, #burn, #clear_data, #initialize

Constructor Details

This class inherits a constructor from SVG::Graph::BarBase

Instance Method Details

- (Object) set_defaults

In addition to the defaults set in BarBase::set_defaults, sets

rotate_y_labels
true
show_x_guidelines
true
show_y_guidelines
false


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# File 'lib/SVG/Graph/BarHorizontal.rb', line 63

def set_defaults
  super
  init_with( 
    :rotate_y_labels    => true,
    :show_x_guidelines  => true,
    :show_y_guidelines  => false
  )
  self.right_align = self.right_font = 1
end