points on a surface

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Permalink Reply by MARIO VERGARA on January 27, 2011 at 8:28am

you could create a sdl line in every point (0,1,0)

then find the intersection between the surface and those lines.

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Permalink Reply by Wieland Schmidt on January 27, 2011 at 9:14am

Thanks for the fast response and the great idea! It worked fine, I did not know about the sdl lines... 

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Permalink Reply by Danny Boyes on January 27, 2011 at 10:29am

Hi Wieland,

 

When trying to find what points are "on" a surface, are they co-planar?

If so then there is a component in Curve>Analysis called Containment which will find where a list of points are coincident, inside or outside a closed curve. If you supplied the border of the surface you could then manipulate the output to get a boolean pattern for culling.

 

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