The software computes strain values, such as major strain and minor strain or strain in X-direction and Y-direction from 3D coordinated measured over the entire surface and at specific points. Point groups, so-called components, can be defined from the individual measuring points. The software can identify the point groups over the entire time course of the test. This enables the accurate computation of displacements, velocities and accelerations in 3D. Furthermore, point groups can be used for compensating rigid body motions. Thus, analyzing motions with a point group as a fixed reference in 3D space is possible.