Module: Webgen::Tag::Tikz

Defined in:
lib/webgen/tag/tikz.rb

Overview

This tag allows you to create and use complex graphics using the PGF/TikZ library of LaTeX. It uses Webgen::ContentProcessor::Tikz for doing the hard work.

Class Method Summary collapse

Class Method Details

.call(tag, body, context) ⇒ Object

Create a graphic (i.e. an HTML img tag) from the commands in the body of the tag.



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# File 'lib/webgen/tag/tikz.rb', line 13

def self.call(tag, body, context)
  path = Webgen::Path.append(context.ref_node.parent.alcn, context[:config]['tag.tikz.path'])
  path = Webgen::Path.new(path)

  add_tikz_options!(path, context)
  node = context.website.ext.path_handler.create_secondary_nodes(path, body, context.ref_node.alcn).first

  attrs = {'alt' => ''}.merge(context[:config]['tag.tikz.img_attr']).collect do |name, value|
    "#{name.to_s}=\"#{value}\""
  end.sort.unshift('').join(' ')
  "<img src=\"#{context.dest_node.route_to(node)}\"#{attrs} />"
end