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3D offset algorithm extension for degenerate (colliding) cases. Patch for version 6.9.1 of Open CASCADE. It includes the following commits: Revision: 5a9dc37f84bb8c6c7ac1e43c1dbcf484b4261321 Author: emv <emv@opencascade.com> Date: 22/10/15 9:00:54 AM Message: Make the possibility to produce empty result in case of any invalidity (spikes, self-intersections, faces inversion) optional. ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cdl Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Modified: src/BRepTest/BRepTest_FeatureCommands.cxx Revision: aadba9a3f585693eddff1ea29b7063a08320ee23 Author: emv <emv@opencascade.com> Date: 16/10/15 10:21:57 AM Message: Due to the small inaccuracy of the calculation of the bi-normal direction (direction inside the face on the edge) the criterion on the coincidence of these directions has been weakened. ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Revision: 3564da4b4d631c8ed627d7ca7697328d6c371aae Author: emv <emv@opencascade.com> Date: 15/10/15 11:52:23 AM Message: The option to remove INTERNAL edges from the faces of the result of Offset operation has been added into Offset API. By default these edges will be kept in the result. To remove these edges make sure to set the corresponding flag to TRUE when initializing the Offset algo. void BRepOffset_MakeOffset::Initialize(const TopoDS_Shape& S, const Standard_Real Offset, const Standard_Real Tol, const BRepOffset_Mode Mode, const Standard_Boolean Inter, const Standard_Boolean SelfInter, const GeomAbs_JoinType Join, const Standard_Boolean RemoveIntEdges, const Standard_Boolean Thickening) ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cdl Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Modified: src/BRepOffsetAPI/BRepOffsetAPI_MakeOffsetShape.cdl Modified: src/BRepOffsetAPI/BRepOffsetAPI_MakeOffsetShape.cxx Modified: src/BRepOffsetAPI/BRepOffsetAPI_MakeThickSolid.cdl Modified: src/BRepOffsetAPI/BRepOffsetAPI_MakeThickSolid.cxx Modified: src/BRepTest/BRepTest_FeatureCommands.cxx Revision:fe25cda7b7Author: emv <emv@opencascade.com> Date: 08/10/15 12:11:06 PM Message: Temporary patch to produce empty result in case of any invalidity (spikes, self-intersections, faces inversion). ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Revision:0fe92803d2Author: emv <emv@opencascade.com> Date: 27/08/15 11:21:55 AM Message: Using local face tolerance for edges intersection. ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Revision:7a38094a2bAuthor: emv <emv@opencascade.com> Date: 10/07/15 12:52:58 PM Message: Corrections in splitting faces and making shells functions. ---- Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Revision:2102c85e9fAuthor: emv <emv@opencascade.com> Date: 07/07/15 2:18:28 PM Message: 3D Offset algorithm extension for the cases with the shapes having the faces connected only by the VERTEX. ---- Modified: src/BRepOffset/BRepOffset_Inter2d.cdl Modified: src/BRepOffset/BRepOffset_Inter2d.cxx Modified: src/BRepOffset/BRepOffset_Inter3d.cxx Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx Revision:c4362927dcAuthor: emv <emv@opencascade.com> Date: 30/06/15 12:22:42 PM Message: Fix for correct shells splitting when building solids. ---- Modified: src/BOPAlgo/BOPAlgo_MakerVolume.cxx Modified: src/BOPAlgo/BOPAlgo_ShellSplitter.cxx Revision:ee5d676aeeAuthor: emv <emv@opencascade.com> Date: 17/06/15 11:30:10 AM Message: Treatment of the shells with free edges has been changed to keep the faces with internal edges. ---- Modified: src/BRepAlgo/BRepAlgo_Tool.cxx Revision:999dacb4d0Author: emv <emv@opencascade.com> Date: 04/06/15 10:53:22 AM Message: 0025926: 3D offset in mode "Complete" with Join type "Intersection" 3D offset algorithm extension for degenerate (colliding) cases. ---- Modified: src/BRepOffset/BRepOffset_Inter2d.cxx Modified: src/BRepOffset/BRepOffset_Inter3d.cxx Modified: src/BRepOffset/BRepOffset_MakeOffset.cdl Modified: src/BRepOffset/BRepOffset_MakeOffset.cxx
Open CASCADE Technology ======================= This directory contains sources of Open CASCADE Technology (OCCT), a software development platform providing services for 3D surface and solid modeling, CAD data exchange, and visualization. Most of OCCT functionality is available in the form of C++ libraries. OCCT can be best applied in development of software dealing with 3D modeling (CAD), manufacturing / measuring (CAM) or numerical simulation (CAE). License ------- Open CASCADE Technology is free software; you can redistribute it and / or modify it under the terms of the GNU Lesser General Public version 2.1 as published by the Free Software Foundation, with special exception defined in the file OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT distribution for complete text of the license. Alternatively, Open CASCADE Technology may be used under the terms of Open CASCADE commercial license or contractual agreement. Note that Open CASCADE Technology is provided on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND. The entire risk related to any use of the OCCT code and materials is on you. See the license text for formal disclaimer. Packaging --------- You can receive certified version of OCCT code in different packages. - Snapshot of Git repository: contains only bare sources of OCCT; many C++ files, HTML documentation, and project files / makefiles for building OCCT need to be generated. - Complete source archive: contains all sources of OCCT, including C++ files generated by WOK, HTML and PDF documentation, and projects / makefiles for building on all officially supported platforms. - Binary package (platform-specific): in addition to complete source archive, it includes binaries of OCCT and third-party libraries built on one platform. This package allows using OCCT immediately after installation. Certified versions of OCCT can be downloaded from http://www.opencascade.org You can also find OCCT pre-installed on your system, or install it from packages provided by a third party. Note that packaging and functionality of such versions can be different from certified releases. Please consult documentation accompanyog your version for details. Documentation ------------- Open file doc/html/index.html to browse HTML documentation. If HTML documentation is not available in your package, you can: - Generate it from sources. You need to have Tcl and Doxygen 1.8.4 (or above) installed on your system. and accessible in your environment (check environment variable PATH). Run batch file *gendoc.bat* on Windows or Bash scriot *gendoc.sh* on Linux or Mac OS X to (re)generate documentation. - Read documentation in source plain text (MarkDown) format found in subfolder *dox* See *dox/dev_guides/documentation/documentation.md* for details. Building -------- In most cases you need to rebuild OCCT on your platform (OS, compiler) before using it in your project, to ensure binary compatibility. Consult the file *dox/dev_guides/building/building.md* for instructions on building OCCT from sources on supported platforms. Version ------- The current version of OCCT can be consulted in the file *src/Standard/Standard_Version.hxx* Development ----------- For information regarding OCCT code development please consult the official OCCT Collaborative Development Portal: http://dev.opencascade.org