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Expand1. Create an Obstructions coverage.
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- Create a new coverage with the SRH-2D "Obstructions" type.
- Select Map Data in the Project Explorer and use the New Coverage right-click command.
- Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, and naming the coverage.
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Expand2. Create feature arcs and points in the coverage.
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Expand1. Create feature arcs, nodes and vertices.
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- 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.
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Expand2. Modify arcs.
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- Feature arcs often need to be edited after initial creation.
Expand3. Split arcs.
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- An existing arc can be split by:
Expand3. Add a new connecting arc.
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- 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.
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Expand3. Assign obstruction parameters.
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Expand1. Assign elevation values to points and nodes.
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- The elevation values will be used as the bottom elevation of the obstruction.
- Using the Select Feature Point/Node
tool, select feature nodes in the obstructions coverage.
- Using the Select Feature Vertex
tool, select feature vertices in the obstructions coverage.
- Enter elevation value in the Edit Window.
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Expand2. Assign parameters to rectangular obstruction.
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- Using the Select Feature Arc
tool, select feature arcs in the obstructions coverage.
- Right-click and select the Assign Obstruction... command.
- In the Obstructions dialog, define the obstruction width, thickness, drag coefficient and porosity.
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Expand3. Assign parameters to circular obstruction.
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- Using the Select Feature Point
tool, select feature points in the obstructions coverage.
- Right-click and select the Assign Obstruction... command.
- In the Obstructions dialog, define the obstruction diameter, thickness, drag coefficient and porosity.
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