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Improve performance of Boolean operations algorithm by: - Improving the check of Same Domain faces (BOPAlgo_Builder::FillSameDomainFaces()); - Faster rejection of outer faces for solids using Bounding Box classification first (BOPAlgo_Builder::FillIn3DParts()); - Using IncAllocator for local containers. Quality improvement has been made in BOPAlgo_PaveFiller class: 1. Method IsExistingPaveBlock() has been corrected to provide the correct edge tolerance and to obtain valid intermediate results in the test case "boolean gdml_private ZH3". New test case have been added to verify this improvement (bugs modalg_7 bug29301). 2. Method PutClosingPaveOnCurve() has been corrected to use the tolerance of the pave put on the bound for checking curve on closeness. Additional check for the curve to have valid range after addition of the pave on the other end has been added to prevent considering the small curves (covered by vertex tolerance) as closed ones. As a result of this modification the test case boolean gdml_public B2 has been fixed (TODO removed). Adjustment of the test cases to current behavior: - boolean bopcommon_complex J1 - the produced result was incorrect as it was self-interfered. There should be no common in this case. - offset shape_type_i_c ZZ1 - the incorrect result is now produced instead of null shape.
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 C++ header and source files of OCCT, documentation sources, build scripts, and CMake project files. - Complete source archive: contains all sources of OCCT, generated HTML and PDF documentation, and ready-to-use projects 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.com 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 accompanying 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). Use batch file *gendoc.bat* on Windows or Bash script *gendoc* on Linux or 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