Enhancements / Additions:

• For 2-D surface mesh generation:
  • Allow transparent curves to intersect the original boundary edge grid.
  • Added a new internal type, Fixed Curve-del.  For the planar surface grid, the fixed-curve is not retained in the final boundary edge grid.  This is analogous to the 3-D volume grid boundary condition transparent delete in that the surface resulting from the fixed curve will not be in the final volume grid if the 2-D grid is revolved or extruded. 

Bugs Fixed:

• Corrected memory leaks.
• Corrected bug that was causing the BreakSurf grid utility to crash.
• Corrected bugs with the periodic surface mesh capability:
  • Allow multiple periodic surface defintions using the same vertices (e.g. two symmetry planes composed of mulitple surfaces each).
  • Corrected transformation
• Corected bug in the 2-D version with writing a save-state file after generating a surface mesh.
• Corrected bugs in the read grid library:
  • Fatal error if a surface mesh contained only quadrilateral boundary faces and no triangle faces.
  • Fatal error if tried to read subsequent grids.
  • Problem re-ordering the node ids when the boundary nodes were not listed first.

Known Problems and Limitations:

• Trimming IGES-tagged periodic surfaces.