NonManifoldMerge

The NonManifoldMerge tool can be used to combine several manifold or non-manifold* surfaces or polysurfaces into a single non-manifold polysurface. It is a built-in Rhino command but is provided in the Griddle toolbar for convenience as it is useful when operating with Rhino surfaces from which surface and volume meshes will be created.

Starting with surfaces or polysurfaces that fully connect along one or more edges (as in the image below), a single polysurface can be created with the NonManifoldMerge tool. This polysurface can later be meshed using Rhino’s Mesh command resulting in a fully conformal non-manifold mesh with all parts of the mesh being properly attached, as opposed to the case of meshing multiple surfaces separately. At this stage the mesh is ready for remeshing with GSurf with no need to use surface mesh intersector. The advantage to this approach is that it avoids problems related to using improper tolerances during the mesh intersection (GInt) and provides accurate results faster. However, a drawback is that the output surface mesh is now a single complex nonmanifold object (it can be split into pieces using GExtract).

Original Rhino object consisting of 41 surfaces and 7 extrusions.
After using the NonManifoldMerge tool the Rhino object is now a single polysurface ready for surface and then volume meshing.

*Edges of polysurfaces or meshes that have more than two faces joined to a single edge are non-manifold (McNeel, 2015).


Neuesten Nachrichten
  • Itasca Software now Available for Linux Version 7 or greater of Itasca software (FLAC3D, 3DEC, PFC3D, and PFC2D) are now operable...
    Weiterlesen
  • Itasca Celebrates 40 Years Itasca is celebrating 40 years of solving geomechanical and hydrogeological challenges through engineering and computer...
    Weiterlesen
  • Introducing Our New IMASS Constitutive Model The Itasca Constitutive Model for Advanced Strain Softening (IMASS) has been developed to represent the...
    Weiterlesen

Kommende Veranstaltungen
7 Mär
FLAC 2021 Online, Live Introductory Training
... Weiterlesen
21 Mär
FLAC3D 2021 Online, Live Introductory Training
... Weiterlesen
4 Apr
PFC 2021 Online, Live Introductory Training copy
... Weiterlesen