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Advanced Surface Approximation D ialog 1245
Advanced Surfa ce Approxi mation
Dia log
Modify panel > Select a NURBS surface object or
surface sub-object. > Surface Approximation rollout >
Tessellation M ethod group box > Turn off Lock to Top
Level > Advanced Parameters bu tton
Select an editable m e sh objec t. > Modify panel > Surface
Properties rollout > Advanced Parameters button
This dialog sets parameters that cont rol the
tessellation used in the Spatial, Curvature, and
Spatial and Curvature approximation methods.
Inter face
Subdivision Style
Chooses the method used to subdivide the surface:
Grid—Subdivides the surface using a regular g r id.
Tree—(The default.) Subdivides the surface using
a binary tree.
Delaunay —Subdivides the surface using nearly
equilateral tr iangles.
Delauney surface subdivision st yle
Subdivision Limits
For Grid or Tree subdivisions, t he limits control
the number of recursive decompositions that are
performed during tessellation.
Minimum Subdivision Levels—Sets the m inimum
number of recursions. Default=0.
Maximum Subdivision Levels—Sets the m aximum
number of recursions. The maximum can be no
greater than 7. B e careful: sett ing the maximum
greater than 5 can result in massive face counts
and p oor performance. Default=3.
Maximum Number of Triangles
For Delaunay subdivision, the Maximum Number
ofTrianglesletsyouspecifythemaximumnumber
of tr iang les into which the sur face will b e div ided.
Default=20000.
Surface Approximation
Utility
Utilities panel > Utilities rollout > More button > Utilities
dialog > Surface Approximation
The Surface Approximation utility lets you change
approximation and display settings without going