doc/ex/RotateScale.rb in rmagick-2.13.4 vs doc/ex/RotateScale.rb in rmagick-2.14.0

- old
+ new

@@ -1,37 +1,36 @@ require 'rvg/rvg' rvg = Magick::RVG.new(400, 120) do |canvas| - canvas.desc = 'Example RotateScale - Rotate and scale transforms' - canvas.background_fill = 'white' - canvas.g.styles(:fill=>'none', :stroke=>'black', :stroke_width=>3) do |grp| - # Draw the axes of the original coordinate system - grp.line(0, 1.5, 400, 1.5) - grp.line(1.5, 0, 1.5, 120) + canvas.desc = 'Example RotateScale - Rotate and scale transforms' + canvas.background_fill = 'white' + canvas.g.styles(:fill=>'none', :stroke=>'black', :stroke_width=>3) do |grp| + # Draw the axes of the original coordinate system + grp.line(0, 1.5, 400, 1.5) + grp.line(1.5, 0, 1.5, 120) + end + # Establish a new coordinate system whose origin is at (50,30) + # in the original coord. system and which is rotated by 30 degrees. + canvas.g.translate(50,30) do |grp| + grp.g.rotate(30) do |grp2| + grp2.g.styles(:fill=>'none',:stroke=>'red',:stroke_width=>3) do |grp3| + grp3.line(0, 0, 50, 0) + grp3.line(0, 0, 0, 50) + end + grp2.text(0, 0, 'ABC (rotate)').styles(:font_size=>20, :fill=>'blue', :font_family=>'Verdana', :font_weight=>'normal', :font_style=>'normal') end - # Establish a new coordinate system whose origin is at (50,30) - # in the original coord. system and which is rotated by 30 degrees. - canvas.g.translate(50,30) do |grp| - grp.g.rotate(30) do |grp2| - grp2.g.styles(:fill=>'none',:stroke=>'red',:stroke_width=>3) do |grp3| - grp3.line(0, 0, 50, 0) - grp3.line(0, 0, 0, 50) - end - grp2.text(0, 0, "ABC (rotate)").styles(:font_size=>20, :fill=>'blue', :font_family=>'Verdana', :font_weight=>'normal', :font_style=>'normal') - end - end + end - # Establish a new coordinate system whose origin is at (200,40) - # in the original coord. systm and which is scaled by 1.5 - canvas.g.translate(200,40) do |grp| - grp.g.scale(1.5) do |grp2| - grp2.g.styles(:fill=>'none',:stroke=>'red',:stroke_width=>3) do |grp3| - grp3.line(0, 0, 50, 0) - grp3.line(0, 0, 0, 50) - end - grp2.text(0, 0, "ABC (scale)").styles(:font_size=>20, :fill=>'blue', :font_family=>'Verdana', :font_weight=>'normal', :font_style=>'normal') - end + # Establish a new coordinate system whose origin is at (200,40) + # in the original coord. systm and which is scaled by 1.5 + canvas.g.translate(200,40) do |grp| + grp.g.scale(1.5) do |grp2| + grp2.g.styles(:fill=>'none',:stroke=>'red',:stroke_width=>3) do |grp3| + grp3.line(0, 0, 50, 0) + grp3.line(0, 0, 0, 50) + end + grp2.text(0, 0, 'ABC (scale)').styles(:font_size=>20, :fill=>'blue', :font_family=>'Verdana', :font_weight=>'normal', :font_style=>'normal') end + end end rvg.draw.write('RotateScale.gif') -