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Dark GDK / 3D position to 2D position.

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helpfull programmer
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Joined: 30th Jul 2009
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Posted: 15th May 2010 19:54
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Hi guys,
you are amazing!

Just a quicky, do you know how to change a 3D position to a 2D one.. E.G. (x,y,z) to (z,y) just like dbObjectScreenX() and dbObjectScreenY()... but instead of an object in a 3D space you find a point.

Thank you in advance!
from helpfullprogrammer.
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bloodmage2
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Posted: 26th May 2010 18:37
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well, i wont give you an exact formula, but the angle of the point is what you want. if you can find the angle, you can find where on the screen (or off) the point is. the x rotation is used for y, the y angle is used for x.

-to the optimist, the glass is half full. to the pessimist, it is half empty, to the engineer, it is twice as big as it needs to be.
http://www.lionsbloodstudios.justinman.net/index.htm
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helpfull programmer
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Posted: 26th May 2010 19:15
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ahhh!! that has given me an idea. thank you
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haliop
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Posted: 26th May 2010 22:20
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Quote: "Just a quicky, do you know how to change a 3D position to a 2D one.. E.G. (x,y,z) to (z,y) just like dbObjectScreenX() and dbObjectScreenY()... but instead of an object in a 3D space you find a point.
"


what point?
i dont understand the diffrence between this and dbObjectScreenX/Y..
what are you trying to find?
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helpfull programmer
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Posted: 26th May 2010 23:15
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Sorry for the confusion the diffrence is that I don't want to find a 3D objects position, but a specific 3D point.
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Morcilla
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Posted: 27th May 2010 11:33
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You want this:

project 3d point onto 2d screen

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