7 replies to this topic

[vectorblur]

Hello Folks,

Given any random point order where points are located at the verts of an ngon in a plane  (* attached image ) how to sort / connect  points to form a closed clean surface.

I need it for a fun little thing "For any given platonic solid make the dual procedurally"

Converting  Tetrahedron -> Inverted Tetrahedron, Cube -> Octahedron, Dodecahedron-> Icosahedron is real easy but i need to get the above sorting in place before i can make it  work conversely.

i.e.  Inverted tetra -> Tetra , Octa -> Cube  , Icosa.->Dodeca.

Any Ideas on sort / connect ?

Attached Thumbnails

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[petz]

one possible solution is attached!

petz

Attached Files

•  sort_points1.hipnc   47.3K   104 downloads

[vectorblur]

petz, on 05 January 2012 - 04:32 AM, said:

one possible solution is attached!

petz

Unbelievable awesomeness !!

Thank you  

[kubabuk]

Triangulate2d sop is another one, although is limited to convex shapes only.

[vectorblur]

kubabuk, on 05 January 2012 - 11:17 AM, said:

Triangulate2d sop is another one, although is limited to convex shapes only.

Thanks for the tip kuba.
Indeed something useful to keep in mind for future.

Cheers,

[kgoossens]

kubabuk, on 05 January 2012 - 11:17 AM, said:

Triangulate2d sop is another one, although is limited to convex shapes only.

You can group the polygon(s) and in the triangulate2D add the group to the "Constraint Primitives" and set "No New Points on Constraints" to off. Then you have Concave shapes as well. (no hole's though if you use it to combine multiple polygons)

Edited by kgoossens, 06 January 2012 - 03:59 PM.

[renderfan]

kgoossens, on 06 January 2012 - 02:19 AM, said:

You can group the polygon(s) and in the triangulate2D add the group to the "Constraint Primitives" and set "No New Points on Constraints" to off. Then you have Concave shapes as well. (no hole's though if you use it to combine multiple polygons)

Hi!
Is there maybe way to combine multiple polygons with holes. Can i use also triangulate2D to do this!
Thank You!

[petz]

renderfan, on 11 January 2012 - 01:39 AM, said:

Hi!
Is there maybe way to combine multiple polygons with holes. Can i use also triangulate2D to do this!
Thank You!

file is attached.

hth.
petz

Attached Files

•  combine1.hipnc   95.86K   52 downloads