Author: Arjan Geers (ajgeers@gmail.com)

This is a set of Python modules with functions I commonly use when dealing with objects from the Visualization Toolkit (VTK) and the Vascular Modeling Toolkit (VMTK) and for making plots with matplotlib.

• colorlib Module with color definitions from colorbrewer2.org
• iolib Module for reading, writing, compressing and converting files
• linalglib Module for linear algebra operations
• plotlib Module for plots
• vmtklib Module for functions in the Vascular Modeling Toolkit (VMTK)
• vtklib Module for operating on VTK data objects

To be able to use the functions, clone the repository to your local machine and add the utils folder to the environment variable PYTHONPATH. On Mac OSX and assuming /Users/foo/sandbox as working directory, this can be done with:

mkdir /Users/foo/sandbox
cd /Users/foo/sandbox
git clone https://github.com/ajgeers/utils.git
export PYTHONPATH=/Users/foo/sandbox/utils/utils:$PYTHONPATH

To permanently add utils to PYTHONPATH, add the last line to the .bash_profile file in your home directory.

Now, in Python scripts or in a Python interpreter the functions can be called as in the following example:

import iolib
import vtklib

# Slice an unstructured grid with the xy-plane at z=0,
# triangulate the slice and write it to disk.
cfd = iolib.readvtu('cfd.vtu')
xyslice = vtklib.slicedataset(cfd, [0, 0, 0], [0, 0, 1])
xyslice = vtklib.triangulate(xyslice)
iolib.writevtp(xyslice, 'xyslice.vtp')

The scripts in this repository were successfully run with:

• Python 2.7
• NumPy 1.8
• matplotlib 1.3
• VMTK 1.2
• VTK 5.10

BSD 2-Clause