1. Create feature points, arcs, nodes and vertices.
In the map module, create feature objects in the active coverage.
Use the Create Arc tool to create arcs in the map coverage.
Begin creating a new arc by clicking in the graphics window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
Double-click or press the Enter key to terminate the arc.
Use the Create Point/Node tool to create additional nodes alone or to split arcs.
2. Modify arcs.
Feature arcs, whether digitized or incorporated from a boundary condition or a material coverage, often need to be edited after initial creation.
1. Create additional vertices on arcs.
Use the Create Vertex tool to add vertices along arcs.
2. Refine the arc shape.
Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
Use the Create Point tool to add a node on an arc in order to split it into two arcs.
3. Connect the end of an existing arc to the middle of the arc.
Use the Select Points\Nodes tool to drag the node of an existing arc to anywhere in the middle of another arc. This will split the second arc into two arcs.
4. Add a new connecting arc.
Use the Create Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
5. Split overlapping arcs using the Clean Options dialog.
Select overlapping arcs using the Select Arcs tool.