mesh

Replies to This Discussion

Permalink Reply by Nick on March 11, 2013 at 1:15pm

It sounds more like an "available memory" issue. Maybe try creating your mesh per sets of two contours, baking them and joining the baked meshes?

Permalink Reply by Hannes Löschke on March 11, 2013 at 4:05pm

The "best" way to create a mesh from imported isocurves is to explode the lines (since they are most likely polylines) and feed all the vertices into the delaunay algorithm.

Any surface or loft approach is likely to create way too heavy geometry that in essence will have no better quality than the mesh.

Permalink Reply by Hannes Löschke on March 11, 2013 at 4:12pm

like so

Attachments:

• mesh_contours.gh, 2 KB

Permalink Reply by Hannes Löschke on March 11, 2013 at 4:37pm

Delaunay tries to connect all available points. It doesn't care, which contour they are from so points on the same contour may be triangulated. You need to put all lines into the definition to get a useful result.

You can use the top and bottom contour if you want to trim out the flat faces. But in most cases you will only use a sub section with well defined contours or approximate top and bottom with a flat surface anyway.

see delaunay triangulation

Permalink Reply by Hannes Löschke on March 12, 2013 at 2:26am

The delaunay  triangulation will connect the curves inbetwwen in an exact way. This is exactly what programs like revit do to create a toposurface from contours.