Ytdyklly

A program I need to compile is dependent on VTK v5.4+ with Python Wrapper. VTK is not in the standard YUM repo's.

How can I install this dependency?

I am running RHEL 7 under developer subscription.

Installing VTK Dependencies

Ensure gcc and g++ are installed:

yum install gcc

yum install gcc-c++

Ensure cmake is installed:

yum install cmake

Ensure OpenGL modules are installed

yum install mesa-libGL

yum install mesa-libGL-devel

(mesa-libGL is an MIT licensed implementation of OpenGL which RHEL uses)

Ensure X11_Xt_LIB is installed:

yum install libXt-devel

Ensure Python Libraries are installed:

yum install python-devel

Ensure NumPy is installed

yum whatprovides numpy  # this will provide a list of package names  

sudo yum install <package name>

example : sudo yum install numpy-1.7.1-11.el7.x86_64

Ensure TCL is installed

sudo yum install tcl

Installing VTK (with Python Wrapper)

Here is the reference that was used for this step

1. Install latest tarball source code from http://www.vtk.org/download/, e.g. VTK-7.0.0.tar.gz



2. 
   

   Create the following VTK file structure:

   
   
   

   mkdir $HOME/VTK
   
   

   
   


3. 
   

   extract the tarball contents into the $HOME/VTK folder:

   
   
   

   tar -xvf ~/Downloads/VTK-X.X.X.tar.gz -C ~/VTK
   
   

   
   
   
   
   
   • replace X.X.X with your version number
   
   
   • make sure ~/Downloads/ contains your tarball
   
   
   
   



4. move the contents of VTK-X.X.X folder directly into $HOME/VTK/ and remove the folder VTK-X.X.X



5. 
   

   Modify your .bashrc file

   
   
   
   
   
   • 
     

     Open .bashrc:

     
     
     

     sudo nano ~/.bashrc
     
     

     
     
   
   
   • Add export VTK_ROOT=$HOME/VTK/ to the file
   
   
   • run the command source $HOME/.bashrc
     
   
   
   
   


6. 
   

   Build VTK with CMake

   
   
   
   
   
   • 
     

     cd $VTK_ROOT
     
     mkdir build
     
     cd build
     
     cmake ../ -DBUILD_SHARED_LIBS=ON -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Release -DVTK_WRAP_PYTHON=ON
     
     

     
     
     

     Note: if this command says there is no CMakeLists.txt, then the path '../' does not lead to the folder with the extracted data. Make sure you completed the movement of the files specified in step 4.

     
     
   
   
   • 
     

     make -j5
     
     

     
     
     

     This will take a while the first time

     
     
   
   
   • 
     

     make test
     
     

     
     
     

     Tests to make sure everything installed properly, this too takes a while

     
     
     
     
     
     • The result should be similar to 99% tests passed, 7 tests failed out of 1448. The fewer failures the better, however.
     
     
     • If many of them are failing, it may be because the build folder is not surrounded by the source folders, e.g. Accelerators, Charts, etc...
     
     
     
     
   
   
   
   

Python Wrapper

Modify your .bashrc file

• sudo nano ~/.bashrc
  
  



• 
  

  Add the following lines to the file

  
  
  

  export PYTHONPATH=$VTK_ROOT/build/Wrapping/Python/:$VTK_ROOT/build/bin:$VTK_ROOT/build/lib
  
  export LD_LIBRARY_PATH=$VTK_ROOT/build/bin:$VTK_ROOT/build/lib:$LD_LIBRARY_PATH
  
  

  
  

Test installation to make sure it worked

• 
  

  python
  
  import vtk
  
  

  
  
  

  Assuming the import vtk command did not complain to you, you're all set.

  
  

A better alternative to building it from source is to install a repository that includes it. EPEL actually has it.

Download the latest epel-release*.rpm from http://dl.fedoraproject.org/pub/epel/6/x86_64/

Install epel-release rpm:

rpm -Uvh epel-release*.rpm

Install the VTK package:

yum install vtk

What worked for me building from binary on Centos 7 / RHEL is

Step 1

yum install epel-release

Step 2

yum install vtk