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G+Smo (pronounced gismo or gizmo) is a C++ library for isogeometric analysis (IGA). Geometry plus simulation modules aims at the seamless integration of Computer-aided Design (CAD) and Finite Element Analysis (FEA).

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======================================================================
=====             Geometry plus Simulation modules               =====
=====                      version 0.8.3 Alpha                   =====
=====                   https://github.com/gismo                 =====
=====          Copyright (C) JKU-RICAM-Linz, 2012 - 2018         =====
======================================================================
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This README file contains brief information. More details are found in the Wiki pages.

The latest revision of the code can be obtained using subversion:

svn co https://github.com/gismo/gismo/trunk gismo

or using git:

git clone git@github.com:gismo/gismo.git

or as a zip file:

https://github.com/gismo/gismo/archive/stable.zip

Prerequisites

  • Operating systems:

    • MS Windows
    • Linux
    • MacOSX
  • Configuration: CMake 2.8.8 or newer.

  • Compilers tested include recent versions of

    • GNU GCC
    • MS Visual C++
    • Clang
    • Intel C++ compiler
    • Mingw64
  • Recommended:

Compilation

The compilation requires configuration using CMake at a new, empty folder (in-source builds are disabled).

  • On Linux/MacOSX: A Unix makefile exists in the root source folder. Running "make" creates a sub folder named "build" and executes CMake and compilation inside that folder. Alternatively, choose your own build folder and execute CMake pointing to the sources.

  • On MS Windows: Run cmake-gui tool (from an environment that is configured with your compiler) o generate makefiles (or Visual Studio project). Then execute the make tool to launch compilation. Alternatively, use the QtCreator GUI and open the CMakeLists.txt file on the root folder to create a QtCreator project.

After successful compilation a dynamic library is created in ./lib and executable example programs are output at the ./bin subdirectory of the build folder.

Additionally, if Doxygen is available on the system one can execute (eg. on Linux):

make doc

to obtain the Doxygen documentation in HTML format. The main doxygen page is at ./doc/html/index.html.

More information at http://gs.jku.at/gismo

Configuration Options

The available options are displayed at CMake configuration. Short description and default setting follows:

  • CMAKE_BUILD_TYPE Release

    Available values are the standard CMake build configurations: Debug, Release, RelWithDebInfo, MinSizeRel.

  • GISMO_COEFF_TYPE double

    The arithmetic type to be used for all computations. Available options include double, long double, float.

  • GISMO_EXTRA_DEBUG OFF

    If set to ON additional debugging tools are enabled during compilation. These include checked iterators for GCC and MSVC compilers and call stack back-trace printout when a runtime exception occurs.

  • GISMO_BUILD_LIB ON

    If enabled a dynamic library is created using GISMO_COEFF_TYPE arithmetic. A target for a static library named gismo_static is also created but not compiled by default.

  • GISMO_BUILD_EXAMPLES ON

    If enabled the programs in the examples folder are compiled, and executables are created in build-folder/bin.

  • GISMO_BUILD_UNITTESTS OFF

    If enabled the tests in the unittests folder are compiled, and an executable is created in build-folder/bin.

  • GISMO_BUILD_AXL OFF

If enabled the plugin for Axel modeler is compiled (requires Axel).

  • GISMO_WITH_PSOLID OFF

    If enabled the extensions using functionalities of Parasolid geometric

kernel are compiled.(requires Parasolid).

  • GISMO_WITH_ONURBS OFF

    If enabled the extension for reading and writing of Rhinoceros' 3DM is compiled.

  • CMAKE_INSTALL_PREFIX (system dependent)

    The location for installation of the library, e.g. /usr/local on some Linux systems.

Directory structure

The source tree consists of the following sub-folders:

  • src

Contains all source files. Code is partitioned into modules. Currently eleven modules are present as sub-folders:

  • gsCore
  • gsMatrix
  • gsNurbs
  • gsHSplines
  • gsModeling
  • gsAssembler
  • gsSolver
  • gsPde
  • gsTensor
  • gsIO
  • gsUtils
  • examples

    Examples of usage, small programs and tutorials.

  • unittests Unittests for some parts of the codebase.

  • filedata

    Data files in the XML format the G+Smo can read and write.

  • extensions

    Optional additional features that can be compiled along G+Smo.

  • plugins

  • cmake

    Cmake configuration files.

  • doc

    Files related to doxygen documentation.

Contact and support

People

Coordinator and maintainer: Angelos Mantzaflaris

See full list in our wiki pages

Acknowledgement and os-license

G+Smo library for isogeometric analysis is supported by the Research Network ``Geometry + Simulation'' (NFN S117), funded by the Austrian Science Fund, www.gs.jku.at. It is distributed under the Mozilla Public License v2.0. (see LICENSE.txt).

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G+Smo (pronounced gismo or gizmo) is a C++ library for isogeometric analysis (IGA). Geometry plus simulation modules aims at the seamless integration of Computer-aided Design (CAD) and Finite Element Analysis (FEA).

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