To construct an open curve path, select the open curve tool, either by clicking on the open curve button or by selecting Tools->Open Curve (Ctrl-K).
To construct a closed curve path, select the closed curve tool, either by clicking on the closed curve button or by selecting Tools->Closed Curve (Ctrl+Shift-K).
Use the primary mouse button to click on each vertex in the path. There is no way to specify the location of the control points defining the curvature of the path whilst the path is under construction, however, once the path has been completed, it is possible to move these control points using the edit path function.
To complete the path, do one of the following:
- Double-click instead of single-clicking on the
final vertex: this performs the combined function of defining the vertex and
finishing the path. If you use this method, be careful not to
accidentally6.1 create two
coincident vertices at the end point, or it will cause a problem for
any mid or end marker that you apply.
- Single-click on the final vertex and then complete the path by pressing the Enter key or by clicking on the finish button or by selecting Tools->Finish.
- Line Colour
- Fill Colour
- Line Style
- Editing Control Points
- Step-by-Step Example: An Artificial Neuron
- ... accidentally6.1
- You may, of course, want to do this intentionally, in which case ignore this caveat.