Zhaoyuan Fang wrote:
But rect() still seems to call -> do_rect() -> GRect(), and thus turns back??
How do you consider this strange thing? Thanks!
GRect/GERect do NOT call rect()!!!!! Please read what I wrote....
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Best wishes,
Zhaoyuan
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发件人：Peter Dalgaard
发送日期：2008-07-26 15:56:39
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抄送：R-devel Mailing List
主题：Re: [Rd] the C function drawing a rectangle: heatmap() -> image()-> do_image() -> GRect() -> GERect() -> rect()
Zhaoyuan Fang wrote:
Hello anyone used to do similar things: search for the final C function that corresponding to the drawing of a rectangle?
As listed in the subject, I started from heatmap() in R and after several steps reached the GRect() in C. However, then it refers to rect() which further seems to refer to do_rect(), and then, surpringly, do_rect refers to GRect()!!! A dependency circle! How can it work if no functions soly taking the job for drawing a rectangle?
I know there must be somewhere wrong in my above function "chain", and can you
help me to find it out? Many thanks!
https://stat.ethz.ch/mailman/listinfo/r-devel
I see GRect() calling GERect() calling dd->dev->rect(), i.e. a function
in the current device structure. This will typically have been set to
something like X11_Rect() or Cairo_Rect() or ....
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