Wrapping a group of points into a closed curve or surface
11286 9 1- chenkianwee
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Is there any function in houdini that would allow me to wrap a series of points into a closed curve of surface. the problem is illustrated in the jpeg file attached.
It seems that i can use a curve tool or a add tool, just wondering if there is any other more efficient functions?
THanks
It seems that i can use a curve tool or a add tool, just wondering if there is any other more efficient functions?
THanks
Edited by - Feb. 6, 2010 13:40:20
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- chenkianwee
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yup something like that, however , from my images some of my points in the middle are not used, instead it just wraps around the boundary points. Is there a way to do that ? I tried triangulation but somehow it doesnt work. refer to illustration to what i mean.
I dun really understand the calculate polar node is doing in the something like this file. What is it doing ? Thanks alot.
I dun really understand the calculate polar node is doing in the something like this file. What is it doing ? Thanks alot.
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- chenkianwee
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chenkianwee
I dun really understand the calculate polar node is doing in the something like this file. What is it doing ? Thanks alot.
It uses angles insead of point numbers to sort points. So the point that has smallest angle(I mean smallest number, not the angle itself) will have point number 0. Bigger angle means bigger point number. So angle = point 0, angle = point 1 etc…
NOTE: on the picture I incorrectly placed geometry so you have minus values on both sides of Y, but I hope you get the idea .
Edited by - Feb. 7, 2010 21:30:23
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Alternative way. Shame that we dont have edge groups implemented, this will be much easier.
Aditionaly you can add third check and look if triangle angles are = 90 and delete those that are not. But with two check methods that are in file I think it should work.
Left = Polar, Middle = points to process, Right = New method
Aditionaly you can add third check and look if triangle angles are = 90 and delete those that are not. But with two check methods that are in file I think it should work.
Left = Polar, Middle = points to process, Right = New method
- chenkianwee
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