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Changes in Technical Overview: Corrected reference of "Mesh" as dedicated module, which is actually a Toolkit within "Modeling Algorithms" module. Reduced references to "Configurable optimized memory manager", which has not been updated for a long time and no more encouraged to be used as replacement of standard memory allocator of C library. VRML/STL converters have been moved from section Mesh to Data Exchange. Visualization chapter has been slightly reworded and reordered; added references to PBR metallic-roughness material model. Data Exchange chapter - reworded sentence "The exchanges run smoothly regardless of the quality of external data..." to "This module handles various problems of interoperability between CAD systems..."; added AP242 to the list of STEP capabilities. Changes in User Guide for Foundation Classes: Removed references to "physical quantities" in package Quanity, deprecated since #0028799 and not actually used anywhere. Adjusted description of string classes to avoid duplicated statements. Collections section has been refactored to replace obsolete TCollection references by NCollection. Remove obsolete statement "furthermore *catch()* statement does not allow passing exception object as argument". Fixed broken nested enumeration in a couple of places. Fixed usage of inappropriate quote symbols in code snippets. Fixed references to non-existing classes like ZeroDivide instead of Standard_DivideByZero. Removed suggested usage of Standard_Failure::Raise() instead of "throw Standard_Failure()" following #0026937. Code snippets now suggest "catch(const Standard_Failure& )" instead of "catch(Standard_Failure )" (#0026937). Fixed broken code snippets with lost symbols like <<. Cosmetics: removed numerous trailing spaces, double spaces. Added missing {.cpp} language qualifier to code quotations. Sentences within paragraphs have been split into multiple lines in source file.
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