Extra functionalities

dataFile — Adds a possibility to colorize nodes depending on data read in an input file.
dataNode — Extends capabilities of node properties.
Plane — Adds capabilities to draw and handle planes.
scalarFields — Gives capabilities to load a scalar field.
isolines — handle the drawing and the computation of isolines.
surfaces — Supports loading of .surf files and drawing of surfaces through OpenGL.
surfacesPoints

Other capabilities.

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