Cross sections can be generated in SMS using the following workflows:
1. Importing a centerline and cross sections.
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- To import centerline and cross section data:
- Create centerline and cross section data in a GIS file format.
- Use the File | Open command to import the GIS file containing the centerline and cross section data.
- The centerline and cross sections will appear on separate map coverages.
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2. Creating a centerline and cross sections from scratch.
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1. Define centerline.
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1. Importing centerline data.
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- Files containing a centerline arc and bank arcs can be imported into the Map module.
- Select File | Open to import the file data.
- Check that the data has been imported into the Map module.
- Check that the map coverage containing the arcs has been set to the 1D-Hyd Centerline type.
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2. Creating a centerline arc.
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1. Create a 1D-Hydraulic Centerline coverage.
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- Create a new coverage with the "1D-Hyd Centerline" type.
1. Create new coverage from scratch.
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- 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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2. Create new coverage from an existing coverage.
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- Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
- Use the Rename command to give the coverage a new name.
- Change the coverage type.
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2. Creating a centerline arc.
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- Draw a channel centerline arc from upstream to downstream (direction is important) along the desired reach.
1. Create an arc representing the centerline.
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1. 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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2. Modify arcs.
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- Feature arcs often need to be edited after initial creation.
3. Split arcs.
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- An existing arc can be split by:
2. Add a node the arc.
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- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
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3. 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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4. Merge arcs.
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- 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.
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2. Assign attributes to the centerline arc.
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- Using the Select Feature Arc tool, select the centerline arc.
- Right-click and select the Attributes... command.
- In the River Reach Attributes dialog, assign the centerline type and other attributes as needed.
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3. Create overbank arcs. (Optional)
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- Draw additional arcs to delineate each channel bankline.
1. Create arcs representing the banks.
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1. 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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2. Modify arcs.
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- Feature arcs often need to be edited after initial creation.
3. Split arcs.
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- An existing arc can be split by:
2. Add a node the arc.
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- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
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3. 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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4. Merge arcs.
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- 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.
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2. Assign attributes to the bank arcs.
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- Using the Select Feature Arc tool, select the bank arc.
- Right-click and select the Attributes... command.
- In the River Reach Attributes dialog, assign the bank type and other attributes as needed.
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2. Define cross sections.
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1. Importing cross section data.
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- Files containing a cross section arcs can be imported into the Map module.
- Select File | Open to import the file data.
- Check that the data has been imported into the Map module.
- Check that the map coverage containing the arcs has been set to the 1D-Hyd Cross Section type.
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2. Creating a cross sections.
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1. Create a 1D-Hydraulic Cross Section coverage.
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- Create a new coverage with the "1D-Hyd Cross Section" type.
1. Create new coverage from scratch.
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- 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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2. Create new coverage from an existing coverage.
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- Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
- Use the Rename command to give the coverage a new name.
- Change the coverage type.
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2. Creating a cross section arcs.
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1. Create arcs in cross section locations.
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- Draw cross section arcs that intersect the channel centerline.
1. 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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2. Modify arcs.
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- Feature arcs often need to be edited after initial creation.
3. Split arcs.
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- An existing arc can be split by:
2. Add a node the arc.
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- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
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3. 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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4. Merge arcs.
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- 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.
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3. Viewing centerline and cross sections attributes.
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