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@dpasukhi dpasukhi released this 04 Dec 18:54
· 59 commits to master since this release
V7_8_0
656b0d2

Open CASCADE Technology 7.8.0 Released

Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.8.0 to the public.

Overview

Version 7.8.0 is a minor release, encompassing approximately 110 improvements and corrections over the previous minor release 7.7.0.

What's New in OCCT 7.8.0

General

  • Fixed TDataStd_NamedData HasSmth() methods to no longer return true for empty containers.
  • Improved general performance through code updates with static analysis.
  • Implemented "Memory Manager" configurations: Native, TBB, JeMalloc, Flexible. JeMalloc leads to a performance increase of up to 40% for large files.
  • Introduced CMake configuration for optimization profiles: Default and Production. Production activates all available compiler optimizations.
  • Implemented move semantics into NCollection and TCollection containers.
  • Modernized NCollection_Vector(NCollection_DynamicArray), NCollection_Array1, and NCollection_Array2.
  • Updated memory allocation functionality to avoid unnecessary memory cleaning (set 0).
  • Modernized NCollection_IncAllocator (optimized pool for small objects).

Modeling

  • Addressed multiple bug fixes and improvements for various modeling algorithm methods.
  • Increased memory management performance.
  • Improved overall modeling stability.
  • Resolved canonical geoplane detection problems.

Visualization

  • Resolved compilation issues related to vtk 9.2.6.
  • Improved SelectMgr_EntityOwner to process the selection scheme.
  • Modified Image_AlienPixMap::Save() to write into a memory buffer instead of a file.
  • Reduced sensitivity of lines.
  • Extended AIS_AnimationObject with syntax for defining rotation around a specific point.
  • Introduced separate gesture mappings for dragging to AIS_ViewController.
  • Integrated the ability to scale by moving the mouse on the OY axis.

Mesh

  • Fixed BRepMesh_IncrementalMesh issue with overflowing system memory.
  • Unhandled Standard_OutOfRange, BRepMesh_PairOfIndex::Append() no longer prevents triangulation with large deflection values.

Data Exchange

  • Resolved multiple issues regarding DE Wrapper and Step import and export.
  • Increased STEP parser performance.
  • Introduced thread-safety interface to STEP import and export.
  • Reorganized DE ToolKits according to specific CAD formats.
  • Introduced DE plug-in system to load CAD format providers during library loading time.
  • Fixed stability issues with XBF and IGES file formats.
  • Addressed general problems with importing VRML V1.
  • Improved processing of STEP-oriented dimensions.

Draw Test Harness

  • Enabled loading of plugins on Linux OS.
  • Reorganized DRAW DE ToolKits according to specific CAD formats.
  • Resolved environment-related issues with debug tools DrawTrSurf_Set, DrawTrSurf_SetPnt, and `DrawTrSurf_SetPnt2d.

How to Upgrade

For details on upgrading to the new version, please refer to OCCT Upgrade Guide.

Full Changelog: V7_7_0...V7_8_0

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