6 @htmlonly<center>@endhtmlonly
7 @image html /resources/occt_logo.png
8 @image latex /resources/occt_logo.png
9 @htmlonly</center>@endhtmlonly
11 @section OCCT_OVW_SECTION_1 Welcome
13 Welcome to Open CASCADE Technology (OCCT), a software development platform
14 providing services for 3D surface and solid modeling, CAD data exchange, and
15 visualization. Most of OCCT functionality is available in the form of C++
16 libraries. OCCT can be best applied in development of software dealing with 3D
17 modeling (CAD), manufacturing / measuring (CAM) or numerical simulation (CAE).
19 @section OCCT_OVW_SECTION_2 Copyrights
21 Open CASCADE Technology and all materials, including this documentation, is
22 Copyright (c) 1999-2016 by OPEN CASCADE S.A.S. All rights reserved.
24 @htmlonly<center>@endhtmlonly
25 http://www.opencascade.com
26 @image html /resources/occ_logo.png
27 @image latex /resources/occ_logo.png
28 @htmlonly</center>@endhtmlonly
33 Open CASCADE Technology is free software; you can redistribute it and / or
34 modify it under the terms of the
35 @ref license_lgpl_21 "GNU Lesser General Public License (LGPL) version 2.1",
36 with additional @ref occt_lgpl_exception "exception".
38 Alternatively, Open CASCADE Technology may be used under the terms of Open
39 CASCADE commercial license or contractual agreement.
41 Note that Open CASCADE Technology is provided on an "AS IS" basis, WITHOUT
42 WARRANTY OF ANY KIND. The entire risk related to any use of the OCCT code and
43 materials is on you. See the @ref occt_public_license "license" text for formal
47 ----------------------
49 You are hereby informed that all software is a property of its respective authors and is protected by
50 international and domestic laws on intellectual property and trademarks.
51 Should you need further information, please directly contact the authors.
53 **CAS.CADE** and **Open CASCADE** are registered trademarks of
56 **Linux** is a registered trademark of Linus Torvalds.
58 **Windows** is a registered trademark of Microsoft Corporation in the United States and other countries.
60 **Mac** and the Mac logo are trademarks of Apple Inc., registered in the U.S. and other countries.
65 The following parties are acknowledged for producing tools which are used within
66 Open CASCADE Technology libraries or for release preparation.
68 You are hereby informed that all rights to the software listed below belong to its respective
69 authors and such software may not be freely available and/or be free of charge for any kind
70 of use or purpose. We strongly recommend that you carefully read the license of these products
71 and, in case you need any further information, directly contact their authors.
73 **Qt** is a cross-platform application framework that is widely used for developing application software
74 with graphical user interface (GUI). Qt is free and open source software distributed under
75 the terms of the GNU Lesser General Public License. In OCCT Qt is used for programming samples.
76 If you need further information on Qt, please, refer to Qt Homepage (http://www.qt.io/)
78 **Tcl** is a high-level programming language. Tk is a graphical user interface (GUI) toolkit,
79 with buttons, menus, listboxes, scrollbars, and so on. Taken together Tcl and Tk provide a solution
80 to develop cross-platform graphical user interfaces with a native look and feel. Tcl/Tk is under copyright by
81 Scriptics Corp., Sun Microsystems, and other companies. However, Tcl/Tk is an open source, and
82 the copyright allows you to use, modify, and redistribute Tcl/Tk for any purpose, without an
83 explicit license agreement and without paying any license fees or royalties.
84 To use Tcl/Tk, please refer to the Licensing Terms (http://www.tcl.tk/software/tcltk/license.html).
86 **GL2PS** is developed by Christophe Geuzaine and others. It is optionally used by OCCT to
87 export content of OpenGL scene to vector graphics formats (PS, PDF, EMF, SVG).
88 The library is licensed under GL2PS LICENSE http://www.geuz.org/gl2ps/COPYING.GL2PS Version 2, November 2003.
90 **FreeType 2** is developed by Antoine Leca, David Turner, Werner Lemberg and others.
91 It is a software font engine that is designed to be small, efficient, highly customizable and
92 portable while capable of producing high-quality output (glyph images). This product
93 can be used in graphic libraries, display servers, font conversion tools,
94 text image generation tools, and many other products.
96 FreeType 2 is released under two open-source licenses: BSD-like FreeType License and the GPL.
98 **Intel(R) Threading Building Blocks (TBB)** offers a rich and complete approach to expressing parallelism in a C++ program.
99 It is a library that helps you to take advantage of multi-core processor performance without having to be a threading expert.
100 Threading Building Blocks is not just a threads-replacement library. It represents a higher-level, task-based parallelism that
101 abstracts platform details and threading mechanisms for scalability and performance.
102 TBB is available under GPLv2 license with the runtime exception.
104 **OpenGL** is an industry standard API for 3D graphics used by OCCT for
105 implementation of 3D viewer. OpenGL specification is developed by the
106 Khronos group, http://www.khronos.org/opengl/. OCCT code includes header
107 file *glext.h* obtained from Khronos web site.
109 **VTK** -- The **Visualization Toolkit (VTK)** is an open-source, freely available software system for 3D computer graphics, image processing and visualization. OCCT VIS component provides adaptation functionality for visualization of OCCT topological shapes by means of VTK library. If you need further information on VTK, please, refer to VTK Homepage http://www.vtk.org/.
111 **Doxygen** developed by Dimitri van Heesch is open source documentation system for
112 C++, C, Java, Objective-C, Python, IDL, PHP and C#. This product is used in Open CASCADE Technology
113 for automatic creation of Technical Documentation from C++ header files.
114 If you need further information on Doxygen, please refer to http://www.stack.nl/~dimitri/doxygen/index.html.
116 **Graphviz** is open source graph visualization software developed by John Ellson, Emden Gansner, Yifan Hu and Arif Bilgin.
117 Graph visualization is representiation of structured information as diagrams of abstract graphs and networks.
118 This product is used together with Doxygen in Open CASCADE Technology for automatic creation of Technical Documentation
119 (generation of dependency graphs). Current versions of Graphviz are licensed on an open source
120 basis under The Eclipse Public License (EPL) (http://www.graphviz.org/License.php).
122 **Inno Setup** is a free script-driven installation system created in CodeGear Delphi by Jordan Russell.
123 In OCCT Inno Setup is used to create Installation Wizard on Windows.
124 It is licensed under Inno Setup License (http://www.jrsoftware.org/files/is/license.txt).
126 **FreeImage** is an Open Source library supporting popular graphics image formats, such as PNG, BMP, JPEG, TIFF,
127 and others used by multimedia applications. This library is developed by Hervé Drolon and Floris van den Berg.
128 FreeImage is easy to use, fast, multithreading safe, compatible with all 32-bit or 64-bit versions of Windows,
129 and cross-platform (works both with Linux and Mac OS X). FreeImage is optionally used by OCCT to work
130 with images, on conditions of the FreeImage Public License (FIPL) (http://freeimage.sourceforge.net/freeimage-license.txt).
132 **MikTEX** is up-to-date implementation of TeX/LaTeX and related programs for Windows. It is used
133 for generation of User and Developer Guides in PDF format. See http://miktex.org for information
136 Adobe Systems, Inc. provides **Adobe Reader**, which can be used to view files in Portable Document Format (PDF).
138 @section OCCT_OVW_SECTION_3 Documentation
140 OCCT documentation is provided in several forms:
142 - This overview provides general description of OCCT structure, functionality, modules, and features.
143 It is available in HTML format (generated by Doxygen) and includes User and Developer Guides.
144 The sources of this documentation are contained in **dox** subdirectory of OCCT sources
145 (plain text format is used, with mixed MarkDown / Doxygen syntax mark-up).
147 - User and Developer Guides describing in details OCCT modules and development tools are also available in
148 Adobe Portable Document Format (PDF). To read this format, you need Adobe Acrobat Reader,
149 which is a freeware and can be downloaded from the Adobe site.
151 - Full reference documentation covering all OCCT classes generated automatically by Doxygen
152 software is provided in HTML format.
153 Reference documentation is presented in **Modules --> Toolkits --> Packages --> Classes**
154 logic structure with cross-references to all OCCT classes and complete in-browser search by all classes.
156 See @ref occt_dev_guides__documentation "OCCT Documentation Guide" for details on OCCT documentation system.
158 **Generation of HTML documentation**
160 To generate HTML documentation from sources contained in *dox* subdirectory,
161 you need to have Tcl and Doxygen 1.8.5 (or above) installed on your system.
163 Use script **gendoc** (batch file on Windows, shell script on Linux / Mac OSX) to generate documentation.
165 To generate Overview documentation:
167 cmd> gendoc -overview
169 To generate Reference manual:
173 Run this command without arguments to get help on supported options.
175 @section OCCT_OVW_SECTION_5 Requirements
177 Open CASCADE Technology is designed to be highly portable and is known to
178 work on wide range of platforms (UNIX, Linux, Windows, Mac OS X, Android).
179 Current version is officially certified on Windows (IA-32 and x86-64),
180 Linux (x86-64), MAC OS X (x86-64) and Android (4.0.4 armv7) platforms.
182 The tables below describe the recommended hardware and software configurations
183 for which OCCT is certified to work.
185 @subsection overview_req_os Operating System
188 | --------- | ----------- |
189 | Windows | 10, 8.1, 7 SP1, Vista SP2 |
190 | Linux | Mandriva 2010, CentOS 6.3, Fedora 18, Ubuntu 14.10 - 15.10, Debian 6.0, Debian 7.0 |
191 | OS X | 10.10 Yosemite / 10.9 Mavericks / 10.8 Mountain Lion / 10.7 Lion |
192 | Android | 6.x, 5.x, 4.0.4+ |
195 @subsection overview_req_cpp C++ Compiler / IDE
198 | --------- | ----------- |
199 | Windows | Microsoft Visual Studio: 2010 SP1<sup>1</sup>, 2012 Update 4, 2013 Update 5, 2015 <br> Intel C++ Composer XE 2013 SP1 <br> GCC 4.3+ (Mingw-w64)|
200 | Linux | GNU gcc 4.3+ <br> LLVM CLang 3.6+ |
201 | OS X | XCode 6 or newer |
202 | Android | NDK r10, GNU gcc 4.8 or newer |
204 1) VC++ 10 64-bit is used for regular testing and for building
205 binary package of official release of OCCT on Windows.
207 @subsection overview_req_libs Third-party libraries
209 | Component | Requirement |
210 | --------- | ----------- |
211 | Graphic library | OpenGL 3.3+, OpenGL ES 2.0+ <br> Direct3D 9 |
212 | Qt (for samples and demos) | Desktop: Qt 4.8.6+ http://www.qt.io/download/ <br> Android: Qt 5.3.2+ http://www.qt.io/download/ |
213 | TCL (for testing tools) | Tcl/Tk 8.6.3+ http://www.tcl.tk/software/tcltk/download.html <br> or ActiveTcl 8.6 http://www.activestate.com/activetcl/downloads (for Windows)|
214 | Freetype (for text rendering) | FreeType 2.4.11-2.5.5 http://sourceforge.net/projects/freetype/files/ |
215 | FreeImage (optional, for support of common 2D graphic formats) | FreeImage 3.17.0+ http://sourceforge.net/projects/freeimage/files |
216 | gl2ps (optional, for export contents of OCCT viewer to vector formats) | gl2ps-1.3.8+ http://geuz.org/gl2ps/ |
217 | Intel TBB (optional, for multithreaded algorithms) | TBB 4.x or 5.x http://www.threadingbuildingblocks.org/ |
218 | VTK (for VTK Integration Services | VTK 6.1+ http://www.vtk.org/VTK/resources/software.html |
219 | Doxygen (optional for building documentation) | Doxygen 1.8.5+ http://www.stack.nl/~dimitri/doxygen/download.html |
221 @subsection overview_req_hw Hardware
223 | Component | Requirement |
224 | --------- | ----------- |
225 | Minimum memory | 512 MB, 1 GB recommended |
226 | Free disk space (complete installation) | 600 MB approx. |
228 On desktop, 3D viewer for optimal performance requires graphics processing unit (GPU) supporting OpenGL 3.3 or above.
229 Ray tracing requires OpenGL 4.0+ or OpenGL 3.3+ with *GL_ARB_texture_buffer_object_rgb32* extension.
230 Textures within ray tracing will be available only when *GL_ARB_bindless_texture extension* is provided by driver.
232 On mobile platforms, OpenGL ES 2.0+ is required for 3D viewer. The ray tracing is not yet available on mobile platforms.
233 Some old hardware might be unable to execute complex GLSL programs (e.g. with high number of light sources, clipping planes).
235 The following table lists graphic cards tested to work with OCCT.
237 | Graphic card | Driver | OS | OpenGL (fixed pipeline) | OpenGL (shaders) | OpenGL (ray tracing) |
238 | ---- | ---- | ---- | :----: | :----: | :----: |
239 | NVIDIA GeForce GTX 650 | Driver 340.52, OpenGL 4.4 | Windows 7 64 bit | OK | OK | OK |
240 | AMD/ATI RadeOn HD 7870 | Driver 14.100, OpenGL 4.4 | Windows 7 64-bit | OK | OK | OK |
241 | Intel(R) HD Graphics 2500 | Driver 10.18.10.3621, OpenGL 4.0 | Windows 7 64 bit | OK | OK | limited (no textures) |
242 | NVIDIA GeForce 320 | N/A | Mac OS X 10.6 / OS X 10.10 | OK | OK | not yet supported by OCCT |
243 | Apple software OpenGL | N/A | Mac OS X 10.6 / OS X 10.10 | OK | OK | N/A |
244 | Mesa 10.2.4 (software emulator) | "Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)" OpenGL 3.0 | Windows 7 64 bit | OK | OK | unsupported by software |
246 @section OCCT_OVW_SECTION_4 Installation
248 In most cases you need to rebuild OCCT on your platform (OS, compiler) before
249 using it in your project, to ensure binary compatibility.
250 See @ref occt_dev_guides__building for instructions on
251 building OCCT from sources on supported platforms.
253 @subsection OCCT_OVW_SECTION_4_1 Using Windows installer
255 On Windows Open CASCADE Technology can be installed with binaries precompiled by
256 Visual C++ 2010 with installation procedure.
260 If you have a previous version of OCCT installed on your station,
261 and you do not plan to use it along with the new version, you might want to uninstall
262 the previous version (using Control Panel, Add/Remove Programs) before
263 the installation of this new version, to avoid possible problems
264 (conflict of system variables, paths, etc).
266 **Attention:** For full installation OCCT requires approximately 650 Mb of disk space,
267 but during the installation process you will need 1,2 Gb of free disk space.
269 OCCT installation with reference documentation requires 1,4 Gb on disk.
271 * Download the OCCT installer from OPEN CASCADE web site using the link. you have been provided
272 * Launch the installer and follow the instructions.
274 The includes and binaries of third-party libraries necessary for building and launching
275 OCCT are included into binary distribution (built with Visual C++ 2010).
276 When the installation is complete, you will find the directories for 3rd party products
277 (some might be absent in case of custom installation) and the main **OCCT** directory:
279 @image html /overview/images/overview_3rdparty.png
280 @image latex /overview/images/overview_3rdparty.png
282 The contents of the OCCT-7.0.0 directory (called further "OCCT root", or $CASROOT) are as follows:
284 @image html /overview/images/overview_installation.png "The directory tree"
285 @image latex /overview/images/overview_installation.png "The directory tree"
287 * **adm** This folder contains administration files, which allow rebuilding OCCT;
288 * **adm/cmake** This folder contains files of CMake building procedure;
289 * **adm/msvc** This folder contains Visual Studio projects for Visual C++ 2005, 2008, 2010, 2012 and 2013 which allow rebuilding OCCT under Windows platform in 32 and 64-bit mode;
290 * **data** This folder contains CAD files in different formats, which can be used to test the OCCT functionality;
291 * **doc** This folder contains OCCT documentation in HTML and PDF format;
292 * **dox** This folder contains sources of OCCT documentation in plain text (MarkDown) format;
293 * **inc** This folder contains copies of all OCCT header files;
294 * **samples** This folder contains sample applications.
295 * **src** This folder contains OCCT source files. They are organized in folders, one per development unit;
296 * **tests** This folder contains scripts for OCCT testing.
297 * **win64/vc10** This folder contains executable and library files built in optimize mode for Windows platform by Visual C++ 2010;
299 @section OCCT_OVW_SECTION_4_2 Environment Variables
301 To run any Open CASCADE Technology application you need to set the environment variables.
305 You can define the environment variables with env.bat script located in the
306 $CASROOT folder. This script accepts two arguments to be used:
307 the version of Visual Studio (vc8 -- vc12) and the architecture (win32 or win64).
309 The additional environment settings necessary for compiling OCCT libraries and samples
310 by Microsoft Visual Studio can be set using script custom.bat located in the same folder.
311 You might need to edit this script to correct the paths to third-party libraries
312 if they are installed on your system in a non-default location.
314 Script msvc.bat can be used with the same arguments for immediate launch of Visual Studio for (re)compiling OCCT.
319 If OCCT was built by Code::Blocks, you can define the environment variables with env_cbp.sh or custom_cbp.sh script.
321 If OCCT was built by Automake, you can define the environment variables with env_amk.sh or custom_amk.sh script.
323 The scripts are located in the OCCT root folder.
326 ### Description of system variables:
328 * **CASROOT** is used to define the root directory of Open CASCADE Technology;
329 * **PATH** is required to define the path to OCCT binaries and 3rdparty folder;
330 * **LD_LIBRARY_PATH** is required to define the path to OCCT libraries (on UNIX platforms only);
331 * **MMGT_OPT** (optional) if set to 1, the memory manager performs optimizations as described below; if set to 2,
332 Intel (R) TBB optimized memory manager is used; if 0 (default), every memory block is allocated
333 in C memory heap directly (via malloc() and free() functions).
334 In the latter case, all other options starting with *MMGT*, except MMGT_CLEAR, are ignored;
335 * **MMGT_CLEAR** (optional) if set to 1 (default), every allocated memory block is cleared by zeros;
336 if set to 0, memory block is returned as it is;
337 * **MMGT_CELLSIZE** (optional) defines the maximal size of blocks allocated in large pools of memory. Default is 200;
338 * **MMGT_NBPAGES** (optional) defines the size of memory chunks allocated for small blocks in pages
339 (operating-system dependent). Default is 10000;
340 * **MMGT_THRESHOLD** (optional) defines the maximal size of blocks that are recycled internally
341 instead of being returned to the heap. Default is 40000;
342 * **MMGT_MMAP** (optional) when set to 1 (default), large memory blocks are allocated using
343 memory mapping functions of the operating system; if set to 0,
344 they will be allocated in the C heap by malloc();
345 * **CSF_LANGUAGE** (optional) defines default language of messages;
346 * **CSF_DEBUG** (optional, Windows only): if defined then a diagnostic message is displayed in case of an exception;
347 * **CSF_DEBUG_BOP** (optional): if defined then it should specify directory where diagnostic data on problems occured in Boolean operations will be saved;
348 * **CSF_MDTVTexturesDirectory** defines the directory for available textures when using texture mapping;
349 * **CSF_ShadersDirectory** defines the directory for GLSL programs (required for 3D viewer to work);
350 * **CSF_UnitsDefinition** and **CSF_UnitsLexicon** should define paths to resource files Lexi_Expr.dat and Units.dat, respectively (required for support of measurement units);
351 * **CSF_SHMessage** defines the path to the messages file for *ShapeHealing*;
352 * **CSF_XSMessage** defines the path to the messages file for **STEP** and **IGES** translators;
353 * **CSF_StandardDefaults**, **CSF_StandardLiteDefaults*, **CSF_XCAFDefaults**, and **CSF_PluginDefaults** define paths to directory where configuration files for OCAF persistence are located (required for open/save operations with OCAF documents);
354 * **CSF_IGESDefaults** and **CSF_STEPDefaults** (optional) define paths to directory where resource files of **IGES** and **STEP** translators are located;
355 * **CSF_XmlOcafResource** is required in order to set the path to **XSD** resources, which defines XML grammar.
356 * **CSF_MIGRATION_TYPES** is required in order to read documents that contain old data types, such as *TDataStd_Shape*;
358 @section OCCT_OVW_SECTION_7 Getting Started
360 @subsection OCCT_OVW_SECTION_7_1 Draw Test Harness
362 Draw is a command interpreter based on TCL and a graphical system used for testing and demonstrating OCCT modeling libraries.
364 Draw can be used interactively to create, display and modify objects such as curves, surfaces and topological shapes.
366 @image html /overview/images/overview_draw.png
367 @image latex /overview/images/overview_draw.png
369 Scripts can be written to customize Draw and perform tests.
370 New types of objects and new commands can be added using C++ programming language.
374 * A command interpreter based on TCL command language.
375 * A 2D an 3D graphic viewer with support of operations such as zoom, pan, rotation and full-screen views.
376 * An optional set of geometric commands to create and modify curves and surfaces and to use OCCT geometry algorithms.
377 * A set of topological commands to create and modify BRep shapes and to use OCCT topology algorithms.
378 * A set of graphic commands for view and display operations including Mesh Visualization Service.
379 * A set of Application framework commands for handling of files and attributes.
380 * A set of Data Exchange commands for translation of files from various formats (IGES,STEP) into OCCT shapes.
381 * A set of Shape Healing commands: check of overlapping edges, approximation of a shape to BSpline, etc.
383 You can add new custom test harness commands to Draw in order to test
384 or demonstrate a new functionality, which you are developing.
386 Currently DRAW Test Harness is a single executable called *DRAWEXE*.
388 Commands grouped in toolkits can be loaded at run-time thereby implementing dynamically loaded plug-ins.
389 Thus you can work only with the commands that suit your needs adding
390 the commands dynamically without leaving the Test Harness session.
392 Declaration of available plug-ins is done through special resource file(s).
393 The *pload* command loads the plug-in in accordance with
394 the specified resource file and activates the commands implemented in the plug-in.
396 The whole process of using the plug-in mechanism as well as the instructions for extending Test Harness is described in the @ref occt_user_guides__test_harness.
398 Draw Test Harness provides an environment for OCCT automated testing system.
399 Please, consult its @ref occt_dev_guides__tests "Automated Testing System" for details.
403 * The DRAWEXE executable is delivered with the installation procedure on Windows platform only.
404 * To start it, launch DRAWEXE executable from Open CASCADE Technology/Draw Test Harness item of the Start\\Programs menu.
406 @subsection OCCT_OVW_SECTION_7_2 Experimenting with Draw Test Harness
413 1. If OCCT was built by Code::Blocks use <i>$CASROOT/draw_cbp.sh</i> file to launch *DRAWEXE* executable;
414 2. If OCCT was built by Automake use <i>$CASROOT/draw_amk.sh</i> file to launch *DRAWEXE* executable;
416 Draw[1]> prompt appears in the command window
422 Launch Draw executable from Open CASCADE Technology\\Test Harness\\Draw Test Harness
423 item of the Start\\Programs menu or Use <i>$CASROOT\\draw.bat</i> file to launch *DRAWEXE* executable.
425 Draw[1]> prompt appears in the command window
429 **Creating your first geometric objects**
431 1. In the command window, type *axo* to create an axonometric view
432 2. Type *box b -10 -10 -10 20 20 20* to create a cube *b* of size 20, parallel to the X Y Z axis and centered on the origin. The cube will be displayed in the axonometric view in wireframe mode.
433 3. Type *fit* to fill the viewer with the cube
434 4. Type *pcylinder c 2 30* to create a cylinder *c* of radius 2 and height 30. The cylinder will be displayed in addition to the cube
436 **Manipulating the view**
438 1. Type *clear* to erase the view
439 2. Type *donly c* to display the cylinder only
440 3. Type *donly b* to display the cube only
441 4. Type *hlr hlr b* to display the cube in the hidden line removal mode
443 **Running demonstration files**
445 1. Type *cd ../..* to return to the root directory
446 2. Type *cd samples/tcl* to reach the *DrawResources* directory
447 3. Type *source \<demo_file\>* to run the demonstration file provided with Open CASCADE. The following demonstration files are available:
448 * DataExchangeDemo.tcl: demonstrates sample sequence of operations with writing and reading IGES file
449 * ModelingDemo.tcl: demonstrates creation of simple shape and displaying it in HLR mode
450 * VisualizationDemo.tcl: demonstrates use of 3d viewer
451 * cad.tcl: creates solid shape looking like abbreviation "CAD"
452 * bottle.tcl: creates bottle as in OCCT Tutorial
453 * drill.tcl: creates twist drill bit shape
454 * cutter.tcl: creates milling cutter shape
455 * xde.tcl: demonstrates creation of simple assembly in XDE
456 * materials.tcl: demonstrates visual properties of materials supported by 3d viewer
457 * raytrace.tcl: demonstrates use of ray tracing display in 3d viewer
458 * dimensions.tcl: demonstrates use of dimensions, clipping, and capping in 3d viewer
462 1. Type *help* to see all available commands
463 2. Type *help \<command_name\>* to find out the arguments for a given command
465 @subsection OCCT_OVW_SECTION_7_3 Programming Samples
467 @subsubsection OCCT_OVW_SECTION_7_3_1 MFC
469 Visual C++ programming samples containing 10 Visual C++ projects
470 illustrating how to use a particular module or functionality.
472 The list of MFC samples:
485 @image html /overview/images/overview_mvc.png
486 @image latex /overview/images/overview_mvc.png
490 * MFC samples are available only on Windows platform;
491 * To start a sample use Open CASCADE Technology\\Samples\\Mfc\\ item of the Start\\Programs menu;
492 * Read carefully readme.txt to learn about launching and compilation options.
494 See \subpage samples_mfc_standard "Readme" for details.
496 @subsubsection OCCT_OVW_SECTION_7_3_2 Qt
498 OCCT contains three samples based on Qt application framework
503 Import Export programming sample contains 3D Viewer and Import / Export functionality.
505 @image html /overview/images/overview_qt.png
506 @image latex /overview/images/overview_qt.png
511 The Qt programming tutorial teaches how to use Open CASCADE Technology services to model a 3D object.
512 The purpose of the tutorial is not to explain all OCCT classes but
513 to help start thinking in terms of the Open CASCADE Technology.
515 This tutorial assumes that the user has experience in using and setting up C++.
516 From the viewpoint of programming, Open CASCADE Technology is designed
517 to enhance user's C++ tools with high performance modeling classes, methods and functions.
518 The combination of these resources allows creating substantial applications.
520 **See also:** @ref occt__tutorial "OCCT Tutorial"
524 * Qt samples are available on all supported platforms;
525 * To start a sample on Windows use Open CASCADE Technology\\Samples\\Qt\\ item of the Start\\Programs menu.
527 @subsubsection OCCT_OVW_SECTION_7_3_3 C#
529 C# sample demonstrates integration of OCCT 3D Viewer and Import / Export functionality into .NET applications (using Windows Forms and WPF front ends).
531 @image html /overview/images/overview_c__ie.png
532 @image latex /overview/images/overview_c__ie.png
548 See \subpage samples_csharp_occt "Readme" for details.
550 There is also another C# example with the same functionality, which demonstrates the integration of Direct3D Viewer into .NET applications using WPF front end.
552 See \subpage samples_csharp_direct3d "Readme" for details.
554 @subsubsection OCCT_OVW_SECTION_7_3_4 Android
556 There are two samples are representing usage OCCT framework on Android mobile platform. They represent an OCCT-based 3D-viewer with CAD import support in formats BREP, STEP and IGES: jniviewer (java) and AndroidQt (qt+qml)
559 @image html /overview/images/samples_java_android_occt.jpg
560 @image latex /overview/images/samples_java_android_occt.jpg
561 Java -- See \subpage samples_java_android_occt "Readme" for details.
564 @image html /overview/images/samples_qml_android_occt.jpg
565 @image latex /overview/images/samples_qml_android_occt.jpg
566 Qt -- See \subpage samples_qml_android_occt "Readme" for details.