Template:SMS Delineate Mesh Workflow

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1. Import elevation raster
  1. Use the File | Open... command to import GIS data files such as Shapefiles, MIF/MID files, Lidar files, or raster files.
  2. Alternatively, drag and drop the file into the Graphics Window in SMS.
2. Create map coverage
  1. Select Map Data in the Project Explorer and use the New Coverage right-click command.
  2. Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, and naming the coverage.
3. Create an outlet point
  1. Use the Create Feature Node Create Points Tool.svg tool to create an outlet point.
4. Run the watershed from raster tool
  1. Open the Toolbox Toolbox macro.png .
  2. Open the Watershed from Raster tool.
  3. Enter the raster, output coverage, and other parameters, then run the tool.
5. Clean objects for all coverages
1. Create additional vertices on arcs.
  1. Use the Create Feature Vertex SMS Create Vertex Tool.svg tool to add vertices along arcs.
2. Refine the arc shape.
  1. Use the Select Feature Vertex SMS Select Vertex Tool.svg tool and the Select Feature Node SMS Select Node Tool.svg tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
  2. Use the Select Feature Arc SMS Select Arc Tool.svg tool to move entire arcs .
3. Split arcs.
An existing arc can be split by:
1. Converting a vertex to a node.
  1. Use the Select Feature Vertex SMS Select Vertex Tool.svg tool and right-click on a vertex along an arc.
  2. Select the Convert to Node command to split the arc into two arcs.
2. Add a node the arc.
  1. Use the Create Feature Node Create Points Tool.svg tool to add a node on an arc in order to split it into two arcs.
3. Add a new connecting arc.
  1. Use the Create Feature Arc SMS Create Arc Tool.svg 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.
  1. Right-click on an arc using the Select Feature Arc SMS Select Arc Tool.svg tool and select the Split Arc(s)... command.
  2. Use the Split Arcs Tool to divide arcs.
5. Split overlapping arcs using the Clean Options dialog.
  1. Select overlapping arcs using the Select Feature Arc SMS Select Arc Tool.svg tool.
  2. Use the Feature Objects | Clean command to bring up the Clean Options dialog.
  3. 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.
  1. Select the shared node using the Select Feature Node SMS Select Node Tool.svg tool.
  2. Right-click on the node and select the Convert to Vertex command to merge the arcs.
  3. If desired, the Select Feature Vertex SMS Select Vertex Tool.svg tool can be used to select and delete the new vertex.
5. Smooth arcs.
The variability or roughness of an arc can be reduced.
  1. Right-click on an arc using the Select Feature Arc SMS Select Arc Tool.svg tool and select the Smooth Arc(s)... command.
  2. Use the Smooth Arcs Tool to reduce the variability of the arc.
6. Prune arcs.
Concave sections of the arc can be removed.
  1. Right-click on an arc using the Select Feature Arc SMS Select Arc Tool.svg tool and select the Prune Arc(s)... command.
  2. 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.
  1. Using the Select Feature Arc SMS Select Arc Tool.svg tool, select two intersecting arcs.
  2. Right-click on an arc using the Select Feature Arc SMS Select Arc Tool.svg tool and select the Extend/Trim Arc... command.
  3. Use the Trim/Extend Arc dialog to select the target arc and source arc.
6. Create channel polygons with the Polygons from Arcs tool.
  1. Open the Toolbox Toolbox macro.png.
  2. Open the Polygons from Arcs tool
  3. Enter the input coverage and other parameters, then run the tool.
8. Merge Coverages
  1. Select multiple coverages that have feature objects which need to be on the same coverage.
  2. Use the Merge Coverages right-click command.
  3. Right-click on the new coverage and set the correct coverage type.
  4. Use the Clean Options dialog to resolve conflicting feature object data in the new coverage.
9. Set polygon properties
1. Select a polygon and open the 2D Mesh Polygon Properties dialog.
  1. Use the Select Poylgon SMS Select Polygon Tool.svg tool to select a polygon.
  2. Double-click on the selected polygon or use the Feature Objects | Attributes menu command.
2. Set the Mesh Type, Bathymetry Type, and Material Type for the polygon.
  1. Mesh types include Patch, Paving, Scalar Paving Density, and Constant Paving Density.
  2. Bathymetry type describes the elevation/topography source for the mesh nodes. Bathymetry types include a constant elevation value, interpolated elevation values from a scatter set, or interpolated elevation values from an existing mesh.
  3. Material types can be assigned to a polygon using materials previously created in Materials Data dialog.
3. Preview and edit the polygon mesh.
  1. Select the Preview Mesh button.
  2. Use the preview tools to edit the mesh.
  3. Set Arc Options to adjust distribution of vertices.
  4. Use Node Options to change how arcs are treated when using a patch mesh type.
10. Create mesh
  1. Open the Toolbox Toolbox macro.png.
  2. Open the UGrid from Coverage tool.
  3. Select the coverage, name the output, then run the tool.
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