| showgl | Show a graph using OpenGL |
| <graphic> | name of the graphic structure |
| [-t <type>] | type of the view: net | vec | frm |
This command opens a graphic tool to be used for viewing a graphic structure in 3D using OpenGL. The second parameter <type> defines what kind of window is opened. If it is omitted the operation chooses window type according to the type of the graphic. The OpenGL user interface is executed in a separate thread and if settings of the graph <graphic> are altered in another window, the OpenGL view is automatically updated to reflect the changes. There can be only one OpenGL window open at a time. Executing showgl while an OpenGL window is already open changes the graph.