The gem3D visualization window

Once the run button is pressed in the main window, the underlying gem3D algorithm is started to compute a layout according to the current parameter settings. Afterwards, the layout is visualized in a separate window. This window offers several possibilities interaction using the mouse.

left mouse button

popup menu to select a vertex to rotate in front. The menu might be cascaded depending on the number of vertices in the graph. Vertices are grouped into a cascade of size 10. In addition, the last entry of the top-level menu called Manual Input allows the manual entry of a vertex name, a feature that is especially useful if there are many vertices.

middle mouse button

the view follows the mouse drag according to the current mode (rotation, translation, zoom).

right mouse button

set navigation mode (rotation, translation, zoom) for the virtual camera. In addition, the following menu entries are available:

reset

resets the camera to the original position.

quit

deletes the window

presentation

allows to change the presentation parameters (fog/draft/orthogonal) without recomputing the layout.