Surface Validity

Source file: query-surface-validity.htm

The surface validity query tool checks for any problems with surfaces, such as holes or intersecting triangles.

  1. On the Query ribbon tab, go to the Surface group and select Surface Validity.

  2. Select the surfaces to be checked.


  3. Select or clear the check options as required:

    • Check for inconsistent surface to check that all facet normals are pointing in the same direction to avoid problems with calculating volumes and creating fusions.
    • Check for surface closure to check the boundary edges. This is only applicable to closed solid surfaces; clear this for all other surfaces.
    • Check for self-intersections to check for intersecting triangles on the surface, as shown below.

    • Check for trifurcations to check for and find any edges with more than two facets sharing the same edge on a surface.
    • Mark location of failures to create objects in the cad container that highlight the error locations.

  4. Click OK or Apply. A written summary of the results will be displayed in the report window.

  5. Drag any objects created in the cad container onto the surface view window to display any errors found.

Note

To repair any errors found:

  1. Run the Fix Surface tool first. See Fix Surface. If necessary, continue with the next steps.
  2. Zoom in to an error and display the surface in wireframe .
  3. Using Select points mode, select a corner point on the erroneous triangle and press Delete.
  4. On the Edit ribbon tab, go to the Fix group and select Fill Holes.
  5. Repeat steps 2-4 for all remaining errors.