Add Vertices

New vertices can be added to existing boundaries using the Add Vertices option:

1. Select Add Vertices from the toolbar or the Edit sub-menu of the Boundaries menu.
2. As you move the mouse, a green cross snaps to the nearest point on the nearest boundary, following the cursor. You can use this as a guide to graphically add a new vertex, by clicking the left mouse button when the green cross is at the desired location.
The coordinates displayed in the Status Bar at the lower right of the screen, are the coordinates of the green cross on a boundary, and NOT the cursor coordinates.
3. You can also enter the coordinates of a new vertex in the prompt line, however, note the following – the coordinates you enter in the prompt line must be either exactly ON a boundary, or very close to a boundary, in order for a vertex to be added. If the point entered is too far from a boundary, you will see a warning dialog, and be prompted to enter new coordinates. If the point is only slightly off, a vertex will be added at the nearest point on the boundary.
4. You can add any number of new vertices by repeating Steps 2 or 3. When you are finished, press Enter or right-click and select Done.