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Contents
# encoding: utf-8
#
# Prawn supports drawing both lines and curves starting either at the current
# position, or from a specified starting position.
#
# <code>line_to</code> and <code>curve_to</code> set the drawing path from the
# current drawing position to the specified point. The initial drawing position
# can be set with <code>move_to</code>. They are useful when you want to chain
# successive calls because the drawing position will be set to the specified
# point afterwards.
#
# <code>line</code> and <code>curve</code> set the drawing path between the two
# specified points.
#
# Both curve methods define a Bezier curve bounded by two aditional points
# provided as the <code>:bounds</code> param.
#
require File.expand_path(File.join(File.dirname(__FILE__),
%w[.. example_helper]))
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::Example.generate(filename) do
stroke_axis
# line_to and curve_to
stroke do
move_to 0, 0
line_to 100, 100
line_to 0, 100
curve_to [150, 250], :bounds => [[20, 200], [120, 200]]
curve_to [200, 0], :bounds => [[150, 200], [450, 10]]
end
# line and curve
stroke do
line [300,200], [400,50]
curve [500, 0], [400, 200], :bounds => [[600, 300], [300, 390]]
end
end
Version data entries
8 entries across 8 versions & 2 rubygems