New

doc/ex/baseline_shift01.rb

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+require 'rvg/rvg'
+include Magick
+
+rvg = RVG.new(150, 100) do |canvas|
+    canvas.background_fill = 'white'
+    canvas.text(40, 35).styles(:font_weight=>'bold', :font_size=>28) do |txt|
+        txt.tspan('H')
+        txt.tspan('2').styles(:font_size=>20, :fill=>'red', :baseline_shift=>'sub')
+        txt.tspan('O')
+    end
+    canvas.text(40, 80).styles(:font_style=>'italic', :font_size=>28) do |txt|
+        txt.tspan('e=mc')
+        txt.tspan('2').styles(:font_size=>20, :fill=>'red', :baseline_shift=>'super')
+    end
+    canvas.rect(149, 99).styles(:fill=>'none', :stroke=>'blue')
+end
+
+rvg.draw.write('baseline_shift01.gif')
+

doc/ex/text_styles.rb

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+#! /usr/local/bin/ruby -w
+require 'rvg/rvg'
+include Magick
+
+
+rvg = RVG.new(200, 100) do |canvas|
+    canvas.background_fill = 'white'
+
+    canvas.g.styles(:font_size=>16) do |grp|
+        grp.text( 30, 30, ":text_anchor=>'start'").styles(:text_anchor=>'start')
+        grp.circle(1, 30, 30).styles(:stroke=>'red')
+        grp.text(100, 50, ":text_anchor=>'middle'").styles(:text_anchor=>'middle')
+        grp.circle(1, 100, 50).styles(:stroke=>'red')
+        grp.text(170, 70, ":text_anchor=>'end'").styles(:text_anchor=>'end')
+        grp.circle(1, 170, 70).styles(:stroke=>'red')
+    end
+
+    canvas.rect(199, 99).styles(:fill=>'none', :stroke=>'blue')
+end
+
+rvg.draw.write('text_styles.gif')
+

doc/ex/writing_mode01.rb

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+require 'rvg/rvg'
+include Magick
+
+RVG.dpi = 90
+
+TEXT_STYLES = {:writing_mode=>'tb',
+               :glyph_orientation_vertical=>0,
+               :fill=>'red4',
+               :font_weight=>'bold',
+               :font_size=>16}
+
+TEXT_STYLES2 = {:writing_mode=>'tb',
+               :glyph_orientation_vertical=>90,
+               :fill=>'green',
+               :font_weight=>'bold',
+               :font_size=>16}
+
+rvg = RVG.new(1.25.in, 6.in).viewbox(0,0,125,600) do |canvas|
+    canvas.background_fill = 'white'
+
+    canvas.text(40, 15, ":glyph_orientation_vertical=0").styles(TEXT_STYLES)
+    canvas.text(80, 25, ":glyph_orientation_vertical=90").styles(TEXT_STYLES2)
+
+    canvas.rect(124, 598).styles(:fill=>'none',:stroke=>'blue')
+end
+
+rvg.draw.write('writing_mode01.gif')
+

doc/ex/writing_mode02.rb

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+require 'rvg/rvg'
+include Magick
+
+RVG.dpi = 90
+
+TEXT_STYLES = {:writing_mode=>'lr',
+               :glyph_orientation_horizontal=>0,
+               :fill=>'red4',
+               :font_weight=>'bold',
+               :font_size=>16}
+
+TEXT_STYLES2 = {:writing_mode=>'lr',
+               :glyph_orientation_horizontal=>180,
+               :fill=>'green',
+               :font_weight=>'bold',
+               :font_size=>16}
+
+rvg = RVG.new(3.in, 1.in).viewbox(0,0,300,100) do |canvas|
+    canvas.background_fill = 'white'
+
+    canvas.text(15, 40, ":glyph_orientation_horizontal=0").styles(TEXT_STYLES)
+    canvas.text(15, 80, ":glyph_orientation_horizontal=180").styles(TEXT_STYLES2)
+
+    canvas.rect(299, 99).styles(:fill=>'none',:stroke=>'blue')
+end
+
+rvg.draw.write('writing_mode02.gif')