Switch between graph and control mesh drawing mode. The control mesh will only be displayed in control mesh drawing mode.

Activate node drawing mode. When active, the user can place a new node by clicking inside the canvas. Placed nodes can also be moved by clicking on a node and holding the left mouse button. The type of node (graph or mesh) depends on the selected radio button (see #1).

Activate edge drawing mode. When active, the user can draw a new edge by clicking on a node, holding the left mouse button and dragging the cursor to another node. The type of edge (graph or mesh) depends on the selected radio button (see #1).

Activate deletion mode. When active, the user can delete nodes and edges by clicking on them. Deleting a node will also delete all edges connected to it. The type of node/edge (graph or mesh) depends on the selected radio button (see #1).

Create a complete graph by connecting every node pair of the graph.

Clear all nodes and edges of both the graph and the control mesh.

Determine the cell size of the grid that is used during automatic control mesh generation.

If there are edges of the control mesh drawn, the application will try to create a triangle mesh by using the drawn mesh edges as constraints for Constrained Delaunay Triangulation. If there are no mesh edges drawn, the complete control mesh will be generated automatically. Note: Depending on the constraints, the triangulation may fail. If this is the case, the constraints can be used to bundle the edges.

Delete the control mesh.

Load a graph from a gdf-File. Example files can be found in the data-folder.

Save a graph in a gdf-File.

Perform the edge bundling process. Both the graph and control mesh can still be altered while bundling is active - the changes will be displayed in real-time. Deleting edges of the graph is not possible however, as the click-detection only works for the original edges.

Revert the edge bundling process.

The canvas on which the graph is displayed.