Zebra stripes analysis

Description: 2 minutes; Lab exercise: 5 minutes

Use the zebra stripes analysis tool to detect small surface defects and transitions between faces.

In dialogs that create of modify b-spline surfaces, it is helpful to have a tool to analyze the surface quality at any time. The Surface Analysis tool is now available as a subdialog in various Surfacing dialogs. The Zebra stripes analysis tool is available in the Skin, Bridge, Cap, Smooth and Modify Surface dialogs.

Zebra stripes are a reflection of an imaginary striped sphere or cube.  

 

Watch the stripes at the transition edge:

Facet refinement

The Facet Refinement option of the Surface Analysis subdialog is a temporary refinement of the facet model of the selected parts or faces. A better model resolution can lead to a better analysis result. (You can see the facet model by turning on Wire in the Show menu.) Extreme facet refinement will reduce system performance.

A facet refinement setting is effective only during the current analysis.

Limitations

Lab exercise

You will need to load a model that has two connected surfaces.

To conduct a face to face transition analysis:

  1. Click Surfacing .
  2. Click Surf Analysis in the Tools section.
  3. Specify the Type of analysis: Zebra stripes.
  4. Specify the Faces or Parts over which the analysis is to be performed. Neighbor faces are automatically selected for analysis. A preview of the selected faces is displayed.
  5. Select the type of Display Parameters: Spherical or Cubical. The display parameter determines whether the stripes are reflected as spheres or as cubes.
  6. Change the thickness of the zebra stripes by moving the tab in Stripe Number.
  7. Change the ratio of stripe colors by moving the tab in Color Ratio.
  8. To modify the facet model of the selected faces, use the Facet Refinement list. The refinement is temporary; the normal facet is returned when the analysis is completed.
  9. Continue to adjust analysis parameters, or click to finish the surface analysis.