ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 26日 (火) 01:56:28 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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@@ -328,7 +328,7 @@
:Default Scale Example
(12.3.1.2.1.B1){{br}}
- {{image_left("1203-p04-scale_1,1-rect_0,0,50,50-in-drwArea-w-rulers-line-colors-c-s1")}}
+ {{image_left("1203-p04-scale_1,1-rect_0,0,50,50-in-drwArea-w-rulers-line-colors-c-s1.png")}}
For your convenience I also include an example using the default scale, i.e.:((*scale(1,1)*)) and pixels as x,y coordinates used in arguments to shape drawing methods. I also included the image collage, showing three different aspects of the graphics presentation. The first is the usual top Wtk window. For the second and the third, which are the images of the entire cairo drawing area, and the image only of the cr.rectangle(0, 0, 50, 50) respectively, I use GIMP graphic editor with rulers, to enlarge the relevant parts of drawing area and more clearly expose the sizes of both items. I intentionally changed Michael's rectangle's coordinates x1, y1 from (0.25, 0.25) to (0, 0), so the 0.5x0.5 square (now in pixels (50x50) is drawn directly from the 'centre' of the graphics coordinate system (in which, as you know the positive x axis runs from the top left corner of the drawing area to the right, and the positive y coordinate runs down along the left.) If you look carefu
lly, you will see, that the line thickness along x,y axis is only 1/2 of the true size (at the right and at the bottom sides of the square.) I changed the colour of the line from black (0, 0, 0) to pinkish (0.5, 0, 0).