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Author Topic: Conversion of coordinates  (Read 2654 times)

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velasquez

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Conversion of coordinates
« on: December 20, 2010, 06:18:03 AM »
 Is it possible to convert a coordinate of the Window of Exhibition in drawing coordinates?
Thanks

Velasquez
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HasanCAD

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Re: Conversion of coordinates
« Reply #1 on: December 20, 2010, 06:29:14 AM »
What is the meaning of Window of Exhibition ?
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roy_043

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Re: Conversion of coordinates
« Reply #2 on: December 20, 2010, 08:01:17 AM »
Those coordinates can be calculated using these variables:
SCREENSIZE
VIEWCTR
VIEWDIR
VIEWSIZE
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velasquez

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Re: Conversion of coordinates
« Reply #3 on: December 20, 2010, 08:18:49 AM »
Quote from: roy_043 on December 20, 2010, 08:01:17 AM
Those coordinates can be calculated using these variables:
SCREENSIZE
VIEWCTR
VIEWDIR
VIEWSIZE

I have the current mouse coordinates in Windows display coordinates relative to the upper left corner of the virtual display.
I need to convert this for XY in the current viewport.
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roy_043

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Re: Conversion of coordinates
« Reply #4 on: December 20, 2010, 11:01:36 AM »
Scrap my previous answer, I have completely misunderstood you.
Please clarify:
Do you want to translate a point in paperspace to a modelspace point?
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velasquez

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Re: Conversion of coordinates
« Reply #5 on: December 20, 2010, 11:27:02 AM »
Quote from: roy_043 on December 20, 2010, 11:01:36 AM
Scrap my previous answer, I have completely misunderstood you.
Please clarify:
Do you want to translate a point in paperspace to a modelspace point?


My English is not good but I will try to explain. 
1 - I have a function in ARX that SCREENSIZE comes back -> (1440 870)  pixels.
2 - other function a point comes back in this area -> (491.0 305.0) 
 
I need to translate this point for ModelSpace.
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CAB

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Re: Conversion of coordinates
« Reply #6 on: December 20, 2010, 12:46:02 PM »
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Daniel Eiszele

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Re: Conversion of coordinates
« Reply #7 on: December 20, 2010, 04:10:46 PM »
I don't think Velasquez is trying to convert between modelspace and paperspace coordinates.  I think he is trying to convert from screen coordinates to drawing coordinates.  I don't know if it's possible in LISP; just reiterating the question :)
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T.Willey

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Re: Conversion of coordinates
« Reply #8 on: December 20, 2010, 05:24:17 PM »
Quote from: Daniel Eiszele on December 20, 2010, 04:10:46 PM
I don't think Velasquez is trying to convert between modelspace and paperspace coordinates.  I think he is trying to convert from screen coordinates to drawing coordinates.  I don't know if it's possible in LISP; just reiterating the question :)

Maybe this post by MP will help.

[ http://www.theswamp.org/index.php?topic=11624.msg145649#msg145649 ]
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Tim

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velasquez

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Re: Conversion of coordinates
« Reply #9 on: December 21, 2010, 06:07:44 AM »
Quote from: Daniel Eiszele on December 20, 2010, 04:10:46 PM
I don't think Velasquez is trying to convert between modelspace and paperspace coordinates.  I think he is trying to convert from screen coordinates to drawing coordinates.  I don't know if it's possible in LISP; just reiterating the question :)

You got right it is this that I want to do. 
But I also discovered that is not the best road. 
I thank to all that tried help.
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