matplotlib: plotting with Python
Cross-platform, scientific graphics plotting library
Scientific Visualisation Made Easy
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
2D & 3D TeX-Aware Vector Graphics Language
General Mission Analysis Tool
An intuitive molecular editor and visualization tool
Data Visualization and Analysis
OpenPTV
Scanning Probe Microscopy Controller and Data Visualization Software
Simple user interface for gnuplot aimed for reflectometry data
Real-time interactive 3D graphics API for scientific simulations
Interactive visualization of plate tectonics.
A python module for hyperspectral image processing
Geostatistics and geosciences modeling software
PyMOL is an OpenGL based molecular visualization system