Template:SMS Create Polygons Workflow
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1. Create additional arcs for material polygons.
1. Create feature arcs, nodes and vertices.
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature 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 Feature Node tool to create additional nodes alone or to split arcs.
2. Modify arcs.
- Feature arcs often need to be edited after initial creation.
1. Create additional vertices on arcs.
- Use the Create Feature Vertex tool to add vertices along arcs.
2. Refine the arc shape.
- Use the Select Feature Vertex tool and the Select Feature Node tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
- Use the Select Feature Arc tool to move entire arcs .
3. Split arcs.
- An existing arc can be split by:
1. Converting a vertex to a node.
- Use the Select Feature Vertex tool and right-click on a vertex along an arc.
- Select the Convert to Node command to split the arc into two arcs.
2. Add a node the arc.
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
3. Add a new connecting arc.
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
4. Use the Split Arcs Tool.
- Right-click on an arc using the Select Feature Arc tool and select the Split Arc(s)... command.
- Use the Split Arcs Tool to divide arcs.
5. Split overlapping arcs using the Clean Options dialog.
- Select overlapping arcs using the Select Feature Arc tool.
- Use the Feature Objects | Clean command to bring up the Clean Options dialog.
- Select the Intersect selected arcs option (for selected arcs) or Intersect arcs option (for all overlapping arcs) to split the arcs.
4. Merge arcs.
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
5. Smooth arcs.
- The variability or roughness of an arc can be reduced.
- Right-click on an arc using the Select Feature Arc tool and select the Smooth Arc(s)... command.
- Use the Smooth Arcs Tool to reduce the variability of the arc.
6. Prune arcs.
- Concave sections of the arc can be removed.
- Right-click on an arc using the Select Feature Arc tool and select the Prune Arc(s)... command.
- Use the Prune Arcs dialog to remove concave sections.
7. Extend/trim arcs.
- Extend or shorten an arc to match an existing arc's length.
- Using the Select Feature Arc tool, select two intersecting arcs.
- Right-click on an arc using the Select Feature Arc tool and select the Extend/Trim Arc... command.
- Use the Trim/Extend Arc dialog to select the target arc and source arc.
2. Build polygons for material areas.
- Polygons are not created automatically when arcs are enclosed. To create polygons:
- Use the Feature Objects | Build Polygons command.