View: Visualizaton Tools and the Overlay Image:

Isosurfaces:

Selecting Tools Contour exposes a widget to allow specification of multiple isosurfaces. Currently the user can chose up to 2 isosurfaces to be simultaneously rendered by selecting the appropriate toggle boxes. Contour values are entered into the text fields and the opacity for each isosurface is set using the corresponding slider bars (see Figure 20).

Figure 20: Contour Widget