Spider: animation illustrating Euler angle conventions

An object consisting of 3 cylinders of different lengths and diameters that coincide with the three orthogonal axes was created using SPIDER.

The RT 3D SPIDER operation was used to rotate this object by Phi: 40 Theta: 50 & Psi: 70. A cylinder parallel to the rotation axis is embedded to the object before each rotation. Each rotation is done in 10 incremental steps to capture the position of the object for making the illustration. X', Y' and Z' are in the body coordinate system whereas Y and Z are in the space coordinate system.

Note that this excerpt from Spider's documentation is licensed under a Creative Commons Attribution License 2.5. See this page for the original licensing terms.