Details
Ship Design Plate Preparation, result in wrong contours for (nonplaner / double) curved plates.
Plate contours is wrong due to METAFORM_CHORDAL_TOL value.
Solution
Refine the chordal tolerance value (and if needed linear tolerance).
For this you can add expressions to the parts with NonPlaner plates. Plate Preparation feature will use these expressions:
Add expression: METAFORM_CHORDAL_TOL=5 (or other appropriate value)
Notes and References
METAFORM_LINEAR_TOL :
This tolerance directly impacts the density of mesh used to create the mapping surface. It also has a small impact on the accuracy of edges of the flattened solid.
METAFORM_CHORDAL_TOL :
This tolerance has a big effect on the accuracy of edges in the flattened solid. This tolerance is used to convert an edge into points and then back into an edge. The smaller the value, more points will be sampled along the edge and the end result would be more accurate.
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: 1064
Product: NX
Application: SHIP_DESIGN
Version: V11.0.2
Function: MANUFACTURING
Ref: 001-9575272