8

Surface Approximation Utility 1247
Delauney surface subdivision style
Subdivision Limits
ForGridorTreesubdivisions,thelimitscontrol
the number of recursive decompositions that are
performed during tessellation.
Minimum Subdivision Levels—Sets the minimum
number of recursions. Default=0.
Maximum Subdivision Levels—Sets the max imum
number of recursions. The maximum can be n o
greater than 7. Be careful: setting the maximum
greaterthan5canresultinmassivefacecounts
and poor performance. Default=3.
Maximum Number of Triangles
For Delaunay subdivision, the Maximum Number
ofTrianglesletsyouspecifythemaximumnumber
of triangles into w hich the surface will be divided.
Default=20000.
Surface Approximation
Utility
Utilities pane l > Utilities rollout > More button > U tilities
dialog > Surface Approximation
The Surface Approximation utility lets you change
approximation and display settings without going
into the NURBS model, and is especially usef ul
for changing settings on multiple NURBS objects
at once.
It has two rollouts, one for surface approximation
and the other for surface display controls.
Surface Approximation Rollout (page 1–1247)
Surface Display Rollout (page 1–1253)
Procedure
To use the Sur f ace Approximation utility:
1.
On the Utilities panel, click the More button,
and choose Surface Approximation from the
list.
2. Set the desired options on the Surface
Approximation and Surface Display rollouts.
3. Select the NURBS objects to apply the settings
to.
4. On the Surface Display rollout, click Set
Selected to apply the settings.
Sur face Approximation Rollout
Utilities panel > Utilities rollout > More button > Utilities
dialog > Surface Approximation > Surface Approximation
rollout
The controls in the Surface Approximation rollout
are the same as the
surface approximation (page
1–1241)
controls for NURBS (page 1–1079)
surface objects, with two additional buttons: Set
Selected and Reset.