Open-Cascade-SAS/OCCT V6_9_0

on GitHub

Version 6.9.0 - May 12, 2015. Highlights (news):

Modeling algorithms

• Fuzzy Boolean operations - possibility to specify global tolerance for a Boolean operation;
• Support of multiple arguments for a single Boolean operation;
• Improved performance and thread safety;
• Shape proximity detector;
• Revised usage of Closed flag in shapes;
• Precise evaluation of edge tolerance;
• Additional options to tune BRepMesh algorithm;
• More robust algorithms of surface-surface intersection and curve on surface projection;
• Improved support of user feedback messages in Shape Processing;
• New tool to eliminate small solids in ShapeFix;

Visualization

• Redesign of selection mechanism for better performance;
• OpenGL ES 2.0 compatibility improvements;
• Support of OpenGL viewer on iOS and ray tracing on OS X;
• Robust implementation of immediate mode using FBO;
• Option to disable automatic re-triangulation of shapes on display;

Data Exchange

• Reconstruction of p-curves optimized to accelerate import from STEP;
• Colors of edges and faces are written to IGES 5.3;
• Orientation of faces is preserved on export to IGES 5.1;
• Export to STL and VRML 2.0 corrected;

Other

• Support of parallelism without TBB library;
• 64-bit mode becomes default on Windows;
• Improved stability of performance measurements in tests;

Products

• Express Mesh: improved quality of mesh near face boundary;
• C# and Java wrappers: Support of SWIG 3.x;
• DXF Import: Reading of the recent DXF versions with ACIS data encoded in binary form;
• ACIS SAT Import: Reading of SAB (Standard ACIS Binary) files