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A parametric aircraft geometry tool

Bump version to 2.3.0

Version 2.3.0 contains one significant feature and a small bug fix.
Version 2.3.0 is likely the last 2.X feature release for VSP.  We will
continue making 2.3.Y bug fix releases for a long time.

For some time, almost all developer effort has been focused on the pending
3.X project.  VSP v3 is a near total rewrite keeping everything you love
about VSP, but ushering in new features galore and a more maintainable
code base.  We hope to release a not-for-production-use alpha version of
v3 for users to begin testing soon.

Fixes/features in this release:
 - Add ability to model outer domain boundary in CFD Mesh.
 - Match multi-body edge shares in CFD Mesh.  (Thanks Sriram R.)

You can now generate a CFD Mesh including the outer boundary.  Some volume
grid generators need to start with a fully enclosed mesh, so we now support
that mode of operation.  The outer boundary can be either an explicit VSP
component or a box generated for you.  You can model the full domain, or
just the +Y half domain -- VSP will mesh the symmetry plane for you.  There
are separate mesh size controls which apply to the outer boundary.

In CompGeom, VSP tries to match pairs of non watertight geometries to form
a single watergith geometry.  In CFD Mesh, VSP tries to pair and stitch
any perfectly coincident boundary edges.  In cases where there were three
or more components that daisy chained together, VSP do this incorrectly.
With this bug fix, you can now daisy chain an arbitrary number of
components to form a watertight body -- so long as the boundaries match
exactly.
latest commit 568c4249ef
Rob McDonald ramcdona authored
Octocat-spinner-32 examples Remove font file from distribution. September 18, 2013
Octocat-spinner-32 glfont2_destrib Include GLFont2 for displaying 2D text in OpenGL. January 10, 2012
Octocat-spinner-32 src Bump version to 2.3.0 December 10, 2013
Octocat-spinner-32 .gitignore Merge branch 'JR' into Pre2.2 September 06, 2012
Octocat-spinner-32 LICENSE Official initial release of OpenVSP. January 10, 2012
Octocat-spinner-32 README Include tritri triangle intersection tests. January 10, 2012
README
               Build and Installation Instructions for OpenVSP


INTRODUCTION

  OpenVSP is a parametric aircraft geometry tool.  OpenVSP allows the
  user to create a 3D model of an aircraft defined by common engineering
  parameters.  This model can be processed into formats suitable for
  engineering analysis.

  The predecessors to OpenVSP have been developed by JR Gloudemans and
  others for NASA since the early 1990's.  In January 2012, OpenVSP was
  released as an open source project under the NOSA 1.3 license.

LICENSE

  OpenVSP is available under the terms of the NASA Open Source Agreement
  (NOSA) version 1.3.  The complete terms of the license are specified
  in the LICENSE file.

DEPENDENCIES

  -OpenVSP relies on a variety of libraries and code made available by
   other authors.  These libraries are not included with VSP and must
   be obtained in order to build OpenVSP.

  -CMake (www.cmake.org) Cross-platform build system.  CMake generates
   platform-native build files which control compilation of OpenVSP.
   CMake is available as a standard package on most Linux systems and
   binary installers are available for many other platforms including
   Windows and Mac OS X.

  -OpenGL (www.opengl.org) 3D graphics library.  OpenGL should be 
   available on any platform capable of displaying 3D graphics.  The 
   OpenGL development tools must be installed on your computer to build
   OpenVSP.

  -glext.h (www.opengl.org/registry) Extension header for OpenGL. This
   header provides access to OpenGL extensions which are not a part
   of the core standard.  A copy of this header is included for systems
   which do not provide it.

  -FLTK (www.fltk.org) Cross-platform windowing library.  FLTK should 
   be available as a standard package on most Linux systems and can
   be installed from source on Windows and Mac OS X according to the
   FLTK instructions.

  -Libxml2 (www.xmlsoft.org) XML parser and toolkit.  Libxml2 most
   likely comes pre-installed with most Linux distributions and 
   Mac OS X systems.  Windows users must download the source and
   build this library following the Libxml2 instructions.

  -libjpeg (www.ijg.org) JPEG compression library.  Like Libxml2,
   libjpeg is likely to be pre-installed with most Linux distributions
   and Mac OS X systems.  Windows users must download the source
   and build this library following the libjpeg instructions.

  -OpenNURBS (www.opennurbs.org) Rhino 3DM file I/O library.  Download
   the C++ toolkit from the OpenNURBS web site and extract the files
   into the 'openvsp/src' directory creating the directory
   'openvsp/src/opennurbs'.  OpenNURBS is built according to the
   instructions that come with it.

  -Triangle by Jonathan Shewchuk (www.cs.cmu.edu/~quake/triangle.html)
   2D Delaunay triangulator.  This routine has been included in
   this distribution.

  -triInt by Tomas Moller (jgt.akpeters.com/papers/Moller97) Fast
   triangle-triangle intersection test.  This code comes from two
   sources.  The routines are included in this distribution.

     jgt.akpeters.com/papers/Moller97/tritri.html
     jgt.akpeters.com/papers/MollerTrumbore97/code.html

  -glFont2 by Brad Fish (students.cs.byu.edu/~bfish/glfont2.php)
   2D OpenGL font tool.  glFont2 has been included in this source
   distribution.

  -trackball Virtual trackball code for intuitive 3D rotations.
   Gavin Bell's trackball code is included in an example program
   distributed with the GLUT library which accompanies OpenGL.
   If the OpenGL development files are installed on your system,
   then trackball may be included.  Otherwise, the source and
   header files are available from the following URLs:

     www.opengl.org/resources/code/samples/glut_examples/
      examples/trackball.c
     www.opengl.org/resources/code/samples/glut_examples/
      examples/trackball.h

   Place 'trackball.c' and 'trackball.h' in the 'openvsp/src/vsp'
   directory.

BUILD INSTRUCTIONS

  -Linux / Mac OS X

   All of the supporting libraries and code described above in
   DEPENDENCIES must be properly installed.

   The OpenNURBS library must be compiled before OpenVSP can be
   built.  Change to the 'openvsp/src/opennurbs' directory and
   type 'make'.

   Next, CMake is used to construct the build files.  CMake
   supports out-of-tree builds which keep the source tree free
   of generated files.  Create a build directory to contain the
   generated files, say 'openvsp/build'.  Then, change to the
   build directory and run CMake - passing a relative path to
   'openvsp/src', say 'cmake ../src'.

   CMake will search for Libxml2, libjpeg, and FLTK in their
   default installation locations.  If CMake does not find the
   libraries, then edit the '/openvsp/src/CMakeLists.txt' file
   and modify the 'CMAKE_PREFIX_PATH' list of directories to
   include the locations of the installed libraries.

   If Libxml2, libjpeg, or FLTK are not installed on the
   system and root/administrator access is not available to
   install the libraries, the libraries can be installed in a
   non-standard location in the user's directory.  In that
   situation, the 'CMAKE_PREFIX_PATH' list of directories
   should be modified to include the locations of the installed
   libraries.

   When CMake successfully finds all of the libraries, it will
   write Makefiles to the build directory.  When CMake
   completes, execute 'make' in the build directory to compile
   OpenVSP.

  -Windows / Visual Studio

   All of the supporting libraries and code described above in
   DEPENDENCIES must be properly installed.

   The OpenNURBS library must be compiled before OpenVSP can be
   built.  OpenNURBS comes with Visual Studio solution files
   ('opennurbs.sln' or 'opennurbs_vs2005.sln') which are used to
   build the library.  In Visual Studio, build the 'staticlib'
   project.

   The libjpeg source should be unzipped into a convienent
   location such as 'openvsp/src' creating the
   'openvsp/src/jpeg-8c' directory.  Edit the 'CMAKE_PREFIX_PATH'
   list in 'openvsp/src/CMakeLists.txt' to include the paths
   to the libjpeg library.

   Libjpeg is configured from the Visual Studio command prompt
   according to the instructions supplied with it.  It can be
   built at the command prompt or from Visual Studio.

   The Visual Studio project generally creates 'jpeg.lib' while
   the nmake Makefile creates 'libjpeg.lib'.  The CMake search
   will look for 'jpeg.lib', so be sure the result is properly
   named.

   Building FLTK with project files generated by CMake (rather
   than those distributed with FLTK) allows better integration
   with the OpenVSP build system.  Follow the FLTK instructions
   to build FLTK according to the CMake instructions.  Once
   FLTK is built, use the 'INSTALL' project to install FLTK
   to 'C:\Program Files\FLTK'.  If an alternate directory is
   desired, it can be entered in the CMake GUI when the build
   files are created.  Edit the 'openvsp/vsp/CMakeLists.txt'
   to ensure that the FLTK install path is included in the
   'CMAKE_PREFIX_PATH' list.

   The Libxml2 source should be unzipped somewhere outside the
   OpenVSP source tree.  Follow the supplied instructions to
   build Libxml2.  Edit the 'openvsp/src/CMakeLists.txt'
   file and modify the directory list 'CMAKE_PREFIX_PATH' to
   include the libxml install destination.

   The 2.7.8 version of the build files contain a small error.
   Remove the leading '+' characters from lines 74-76 of the
   'libxml/win32/Makefile.msvc' file.

   If you are using Visual Studio 2010 or newer, remove the
   '/OPT:NOWIN98' from line 97 of the 'libxml/win32/Makefile.msvc'
   file.

   The iconv option must be disabled when building Libxml2.
   This is done by passing 'iconv=no' to the 'cscript' command
   when you configure Libxml2.  Do not use the pre-compiled
   Libxml2 libraries available online, they include support for
   iconv and zlib which introduce unneeded dependencies.

   If you want to link the static library for Libxml2 into OpenVSP,
   then rename 'lib/libxml2_a.lib' to 'lib/libxml2.lib'.  The other
   files located in the 'lib' directory may be deleted.

   Next, CMake is used to construct the build files for OpenVSP
   itself.  CMake supports out-of-tree builds which keep the source
   tree free of generated files.  Using the CMake GUI, choose
   'openvsp/src/CMakeLists.txt' and select an appropriate build
   directory.  Configure CMake and generate the build files.

   CMake will search for Libxml2, libjpeg, and FLTK in the paths
   specified in the 'CMAKE_PREFIX_PATH' list in
   '/openvsp/src/CMakeLists.txt'.

   When CMake successfully finds all of the libraries, it will
   write the project files to the build directory.  When CMake
   completes, open the 'vsp.sln' in Visual Studio.  Make sure to
   select the target (Debug or Release) which maches the target
   used to build OpenNURBS and other libraries.  Once the correct
   target is chosen, build OpenVSP.
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