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# Notes for Netgen >= 4.9.13
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Netgen home page: http://sourceforge.net/apps/mediawiki/netgen-mesher.

1. Minimal requirements

Minimal version of Netgen required for SALOME is 4.9.13.

2. How to build Netgen for SALOME NETGEN Plugin
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2.1. Download Netgen archive (here netgen-4.9.13.tar.gz) and unpack it

2.2. Patch the Netgen distribution for SALOME

       $ cd netgen45
       $ patch -p1 < patch_directory/netgen49ForSalome.patch

     Note that patch corresponds to the version of Netgen you use.
     For example, netgen49ForSalome.patch mentioned above is a patch
     file for Netgen 4.9.13. The patch for Netgen can be found in
     NETGENPLUGIN_SRC/src/NETGEN directory.

2.3. Configure the netgen compilation. For example

       $ cd netgen-4.9.13
       $ ./configure --prefix=THE_INSTALLATION_PATH \
         --with-occ=${CASROOT} \
         --with-tcl=${TCLHOME}/lib --with-tk=${TCLHOME}/lib \
         --with-tclinclude=${TCLHOME}/include

     Note that Netgen depends on some products like Open CASCADE
     Technology and Tcl/Tk. These products should be specified
     to the configure script via options.

2.4. Compile the netgen product
       $ make 
       $ make install

2.5. Patch the installation directory by copying include files
     needed by NETGEN Plugin. Use the script
     NETGENPLUGIN_SRC/src/NETGEN/netgen_copy_include_for_salome
     to achieve that. The first argument is the directory containing
     the Netgen sources. The second argument is THE_INSTALLATION_PATH