nick_bart
nick_bart
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Create trianglar mesh from points (x,y,z) data Jan. 30, 2007, 7:49 p.m.
thanks for the example Wolfwood… but can you tell me why the “TY2” works? how for example can you acess any variable in any point SOP?
AND a big thanks to Ben… haven't read it all yet but there is some great stuff in there! cheers
AND a big thanks to Ben… haven't read it all yet but there is some great stuff in there! cheers
Create trianglar mesh from points (x,y,z) data Jan. 28, 2007, 10:12 p.m.
Hi
I would like to create a mesh from a set of points (eg in the .geo file attached). The data in the file represent topography, so the results would ideally look like a earth like surface.
I have tried “triangulate2D” which almost does it but loses all the z data (eg makes it into a 2D plain) and there are other operations that look like they have potential but don't quiet get there, such as polyloft, skin, isoOffset…..
The reason i want the get a surface is to map a image to the mesh, maybe there is a way to map the image without a mesh eg directly on the point and it looks like a mesh?
Any help or ideas would be greatly appreciated!
Nick
I would like to create a mesh from a set of points (eg in the .geo file attached). The data in the file represent topography, so the results would ideally look like a earth like surface.
I have tried “triangulate2D” which almost does it but loses all the z data (eg makes it into a 2D plain) and there are other operations that look like they have potential but don't quiet get there, such as polyloft, skin, isoOffset…..
The reason i want the get a surface is to map a image to the mesh, maybe there is a way to map the image without a mesh eg directly on the point and it looks like a mesh?
Any help or ideas would be greatly appreciated!
Nick
points to mesh/surface to put an image/picture Dec. 4, 2006, 8:57 p.m.
Thanks for the help!
i think the isooffset with the “point cloud” could be the one… however i can't get it to cook properly. The ray intersect and metaball seem to do something but it is not what i want.
Can someone tell me does the iso offset make something like contours?
I have attached a hip file…. hopefully will work
I have followed a bit of a tangent… instead of using metaballs as they chew heaps of memory and took ages even with only 1000 points (the actual file i want to apply this to has 500,000 point and could be more) I have used lines…. only to get primitives so the iso offset would do something. ideally the primitive would be a point but i don't think this is possible.
So to clarify, i want to make a simple earth like surface using the point from a file to map a geotiff to or lay an image on and for it to look like a contunous surface. NOTE that the Z is the elevation of the surface so iso lines/contours should be of Z.
Also the other idea i had would be to use “triangulate 2d” and the translate the p by the original values… however I can't make that work either.
Would Love some help or tips or resources to look at.
Cheers
Nick
i think the isooffset with the “point cloud” could be the one… however i can't get it to cook properly. The ray intersect and metaball seem to do something but it is not what i want.
Can someone tell me does the iso offset make something like contours?
I have attached a hip file…. hopefully will work
I have followed a bit of a tangent… instead of using metaballs as they chew heaps of memory and took ages even with only 1000 points (the actual file i want to apply this to has 500,000 point and could be more) I have used lines…. only to get primitives so the iso offset would do something. ideally the primitive would be a point but i don't think this is possible.
So to clarify, i want to make a simple earth like surface using the point from a file to map a geotiff to or lay an image on and for it to look like a contunous surface. NOTE that the Z is the elevation of the surface so iso lines/contours should be of Z.
Also the other idea i had would be to use “triangulate 2d” and the translate the p by the original values… however I can't make that work either.
Would Love some help or tips or resources to look at.
Cheers
Nick