ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 25日 (月) 20:08:59 JST
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REMOTE_ADDR = 70.49.48.128
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-dancr-rbcatut
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@@ -316,7 +316,7 @@
:Scale
(12.3.1.2.1.A1){{br}}
- This example introduces an unnecessary complication, that needs additional explanation, which in original Cairo tutorial, Michael defers until paragraph 12.3.4 ((<Working with Transforms|tut-gtk2-dancr-rbcatut#Working with Transforms>)) below. I found such treatment of this issue rather confusing for a beginner learning Cairo library basics. Namely, the transforms are too advanced for you to understand at this point, whereas, the scale method is far less complicated than a beginner might think after a introducing it too quickly without explaining what it really means.
+ This example introduces an unnecessary complication, that needs additional explanation, which in original Cairo tutorial, Michael defers until paragraph 12.3.4 ((<Working with Transforms|tut-gtk2-dancr-rbcatut#Working with Transforms>)) below. I found such treatment of this issue rather confusing for a beginner learning Cairo library basics. Namely, the transforms are too advanced for you to understand at this point, whereas, the scale method is far less complicated than a beginner might think after introducing it too quickly without explaining what it really means.
Looking at the output of the above (12.3.1.2.1) example code does not reveal the important details. A much better results would be achieved, if the((*default scale*))were used. The default scale, namely is set as((*scale(1, 1).*)) However, this would require, that rectangle coordinates were given in pixels rather than in relative notation (i.e. as fractions), which calls for a short detour explaining these issues. This actually is exactly what we here are doing.