VTK 7.0 installation

• download from here.
• unzip
• cd $VTK_DIR
•  mkdir build
• cd build
• cmake ..
• make
• sudo make install
• installed in /usr/local/

vtk useful stuff:

• working with VTK follow this: http://www.vtk.org/Wiki/
• some useful tutorial for vtk http://www.vtk.org/Wiki/VTK/Examples/Cxx
• vtk community http://blog.gmane.org/gmane.comp.lib.vtk.user/month=20160201 
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