Module: Vector Probe ()

Description:

The Vector Probe module allows you to interactively investigate a 3D vector field by moving around a dynamic vector field probe. The probe displays certain quantities associated with the first order derivative of the field in an intuitive way. This kind of probe has been originally proposed by W.C. de Leeuw and J.J. van Wijk in A Probe for Local Flow Field Visualization, Proceedings of Visualization'93, pp. 39-45. It looks as follows:

Figure 1: Components of the vector field probe.

Connections:

Data [required]
The 3D vector field to be visualized.

Ports:

Dragger

Shows or hides the dragger and the vector field probe attached to it. The dragger provides a cylinder handle and a square plate handle. The cylinder handle allows you to translate the icon along the center axis. The orientation of the cylinder can be changed using the [Ctrl] key while the mouse is located somewhere over the dragger.

Buffer

Adds the current vector field probe to an internal buffer. In this way multiple probes can be displayed at once.

Scale

Scales the overall size of the vector field probe.

Length

Adjusts the length of the probe's arrow part.