My research interests in astronomy lie in cosmic structure formation. I studied the formation of the cosmic web as it is described by the Zeldovich approximation and the adhesion model.

• Adhesion example, Python notebooks showing how to compute the adhesion model in 2D.
• Adhesion model, a literate C++ code for computing the 3D adhesion model using Voronoi tessellations.

I work at the Netherlands eScience Center, where I collaborate with scientists that work on many different subjects.

Utilities

• enTangleD, a bi-directional literate programming tool.
• Pandoc Tangle, a literate programming tool for Pandoc.
• Noodles, a task-based parallel programming engine for Python.
• PyXenon, Python interface to the Xenon middleware.
• Shell-bar, a nifty Bash prompt.

Climate data analysis

• HyperCanny, a N-dimensional Canny edge detection algorithm, implemented in C++, with Python interface.
• HyperCC, application of HyperCanny on climate data.

I enjoy making fancy graphics.

• Scam 3D plotting, a toolkit for making 3D vector graphics.
• Contouring, a C++ library for creating filled contours and plotting them a Cairo surface. Includes a Guile interface.