Computational Geometry

CP2K

From cp2k.org:

CP2K is a quantum chemistry and solid state physics software package that can perform atomistic simulations of solid state, liquid, molecular, periodic, material, crystal, and biological systems.

Avizo

Avizo software is a powerful, multifaceted tool for visualizing, manipulating, and understanding scientific and industrial data.

Matlab

Matlab is a high level technical computing language and interactive environment for data visualization, data analysis, numerical computation, and algorithm development.

IDL

IDL (Interactive Data Language) is a widely used general purpose visualization package. With IDL, you can create graphs and visualize 2 and 3 - D data using contours, iso-surfaces and slices. IDL has image processing capabilities such as smoothing, sharpening and thresholding.

Amira

Amira is a powerful, multifaceted 3D software platform for visualizing, manipulating, and understanding biomedical data coming from all types of sources and modalities.

Ensight

Ensight is a client/server scientific visualization package providing a complete tool for all types of engineering analysis, postprocessing, visualization and communication.

Grace

Grace is a tool for 2-D plots. It is derived from Xmgr.

Tecplot

Tecplot is a powerful interactive plotting program for visualizing and analyzing engineering and scientific data. It integrates XY plotting with two and three-dimensional surface data-visualization capabilities into a single easy-to-use program. Tecplot allows the user to create plots with contours,iso-surfaces, mesh lines, vectors, streamlines, light-source shaded surfaces, and scatter symbols.