Open Cascade is pleased to announce a new public release of Open CASCADE Technology (version 7.4.0).
Open CASCADE Technology version 7.4.0 is a minor release which includes more than 500 improvements and corrections over the previous minor release 7.3.0.
New in this version:
Modeling
- Improved robustness, performance and accuracy of BRepMesh algorithm
- Options to control linear and angular deflection for interior part of the faces in BRepMesh
- Improved robustness and stability of Boolean Operations and Extrema
- Enabled Boolean Operations on open solids
- Option to suppress history generation to speed up Boolean Operations
- Option to simplify the result of Boolean Operation
- Possibility to calculate surface and volume properties of shapes with triangulation-only geometry
- A new interface for fetching finite part of infinite box in BRepBndLib
- New “constant throat” modes of chamfer creation
- Removal of API for old Boolean Operations
Visualization
- Improved support of embedded Linux platforms
- Selection performance improvement
- Support of clipping planes combinations (clip by box, ¾, etc.)
- New class AIS_ViewController converting user input (mouse, touchscreen) to camera manipulations
- Improved font management
- Improved tools for visualization performance analysis
- Option to display the outline of shaded objects
- Option to exclude seam edges from Wireframe display
- Option to display shrunk mesh presentation
- Possibility to show shapes with dynamic textures (video)
- Support of encoded bitmap image reading from memory buffer
- Removal of the deprecated Local Context functionality from AIS
- Removed dependency from gl2ps (relying on deprecated OpenGL functionality)
Data Exchange
- New tools to import mesh data from glTF 2.0 and OBJ formats
- Support of some non-ASCII encodings in STEP import
- Support of XDE data (assembly structure, colors, names) in export to VRML
Draw Test Harness
- Improved 3D Viewer camera manipulations
- Fixed issues with starting Draw Harness from batch scripts
- Improved support of running Draw Harness in environment without CASROOT
Other
- Improved performance of built-in parallelization routines (OSD_Parallel)
- Tools for convenient and efficient traverse of BVH structures
- Optimization of TPrsStd_AISPresentation attribute
- Sample of 3D Viewer integration in glfw application
Detailed information about this release is available in Release Notes (PDF).
