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Contents
require 'rvg/rvg'
def example(cols, rows)
rvg = Magick::RVG.new(cols, rows) do |canvas|
canvas.background_fill = 'white'
canvas.desc = <<-'END_DESC'
Example ViewBox - uses the viewBox attribute to automatically create an
initial user coordinate system which causes the graphic to scale to fit
into the viewport no matter what size the viewport is.
END_DESC
canvas.viewbox(0, 0, 1500, 1000)
canvas.preserve_aspect_ratio('none')
# This rectangle goes from (0,0) to (1500,1000) in user space.
# Because of the viewBox attribute above,
# the rectangle will end up filling the entire area
# reserved for the SVG content.
canvas.rect(1500, 1000).styles(:fill=>'yellow',:stroke=>'blue',:stroke_width=>12)
# A large, red triangle
canvas.path('M 750,100 L 250,900 L 1250,900 z').styles(:fill=>'red')
# A text string that spans most of the viewport
canvas.text(100, 600, 'Stretch to fit').styles(:font_size=>200, :font_style=>'normal', :font_weight=>'normal', :font_family=>'Verdana')
end
rvg.draw
end
example(300, 200).write('ViewBox_300x200.gif')
example(150, 200).write('ViewBox_150x200.gif')
Version data entries
13 entries across 13 versions & 3 rubygems