Re: logical problem

["richard boaz" <riboaz xs4all nl>]

hi,

the way i have solved this is problem is to set up a graphing coordinate  
system between the user coordinates (from the CAD file) and the window  
coordinates: this amounts to setting up a structure containing the min and  
max of the user coordinates and the window coordinates (and probably more)  
to be used to translate between the two.

then write the functions user_to_pix_x(), user_to_pix_y(), pix_to_user_x()  
and pix_to_user_y() for the coordinate system and you can get to there  
from here with ease, always right vs. the size of the window.

i can provide code if you like.

cheers,

richard


On Mon, 20 Jun 2005 14:10:51 +0200 (MEST), <abent gmx de> wrote:

> hi,
> please help me i have a logic problem. i write a application
> that draws CADpoints from a Cadfile (x,y coord.) on a
> drawingarea. so far so good. now i wanna align this points to the
> windowsize. my idea was, add the windows x-y coord. to the pointcoord.
> but this is not very suggestive. i know this is not a real gtk thing but
> i thought some of you are really c++ cracks and could bring me on the
> right way. thanks!



--
Richard Boaz
riboaz xs4all nl
+31.(0)648.792.484
http://www.boazconsultancy.com