In SMS, size functions can be adjusted by doing one of the following:
Expand 1. General size function process.
Expand 3. Create mesh using the new size function dataset.
Expand 1. Create polygons in the map coverage.
Polygons are not created automatically when arcs are enclosed. To create polygons:
Use the Feature Objects | Build Polygons command.
Expand 2. Specify mesh type for each polygon (pave / patch / none).
Expand 2. Set the Mesh Type , Bathymetry Type , and Material Type for the polygon.
Mesh types include Patch , Paving , Scalar Paving Density , and Constant Paving Density .
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 .
Material types can be assigned to a polygon using materials previously created in Materials Data dialog.
Expand 3. Preview and edit the polygon mesh.
Select the Preview Mesh button.
Use the preview tools to edit the mesh.
Set Arc Options to adjust distribution of vertices.
Use Node Options to change how arcs are treated when using a patch mesh type.
Expand 2. Size function based on depth.
Expand 2. Use the Data Calculator to create a size function dataset based on depth.
Use the Data | Dataset Toolbox command
Using the Data Calculator , create a size function dataset based on depth. Use the following equation:
$ {\biggl (}{\Bigl (}{\frac {positive\ depth\ -\ minimum\ depth}{maximum\ depth\ -\ minimum\ depth}}{\Bigr )}\ *\ (maximum\ size\ -\ minimum\ size)\ +\ minimum\ size{\biggr )} $
Expand 3. Create mesh using the new size function dataset.
Expand 1. Create polygons in the map coverage.
Polygons are not created automatically when arcs are enclosed. To create polygons:
Use the Feature Objects | Build Polygons command.
Expand 2. Specify mesh type for each polygon (pave / patch / none).
Expand 2. Set the Mesh Type , Bathymetry Type , and Material Type for the polygon.
Mesh types include Patch , Paving , Scalar Paving Density , and Constant Paving Density .
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 .
Material types can be assigned to a polygon using materials previously created in Materials Data dialog.
Expand 3. Preview and edit the polygon mesh.
Select the Preview Mesh button.
Use the preview tools to edit the mesh.
Set Arc Options to adjust distribution of vertices.
Use Node Options to change how arcs are treated when using a patch mesh type.
Expand 3. Size function based on slope.
Expand 2. Use the Data Calculator to create a size function dataset based on slope.
Use the Data | Dataset Toolbox command
Using the Data Calculator , create a size function dataset based on slope. Use the following equation:
$ maximum\ size\ -\ {\Bigl (}{\frac {slope\ -\ minimum\ slope}{maximum\ slope\ -\ minimum\ slope}}{\Bigr )}\ *\ (maximum\ size\ -\ minimum\ size) $
Expand 3. Create mesh using the new size function dataset.
Expand 1. Create polygons in the map coverage.
Polygons are not created automatically when arcs are enclosed. To create polygons:
Use the Feature Objects | Build Polygons command.
Expand 2. Specify mesh type for each polygon (pave / patch / none).
Expand 2. Set the Mesh Type , Bathymetry Type , and Material Type for the polygon.
Mesh types include Patch , Paving , Scalar Paving Density , and Constant Paving Density .
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 .
Material types can be assigned to a polygon using materials previously created in Materials Data dialog.
Expand 3. Preview and edit the polygon mesh.
Select the Preview Mesh button.
Use the preview tools to edit the mesh.
Set Arc Options to adjust distribution of vertices.
Use Node Options to change how arcs are treated when using a patch mesh type.
Expand 4. Size function based on curvature.
Expand 2. Use the Data Calculator to create a size function dataset based on curvature.
Use the Data | Dataset Toolbox command
Using the Data Calculator , create a size function dataset based on curvature. Use the following equation:
$ maximum\ size\ -\ {\Bigl (}{\frac {slope\ -\ minimum\ slope}{maximum\ slope\ -\ minimum\ slope}}{\Bigr )}\ *\ (maximum\ size\ -\ minimum\ size) $
Expand 3. Create mesh using the new size function dataset.
Expand 1. Create polygons in the map coverage.
Polygons are not created automatically when arcs are enclosed. To create polygons:
Use the Feature Objects | Build Polygons command.
Expand 2. Specify mesh type for each polygon (pave / patch / none).
Expand 2. Set the Mesh Type , Bathymetry Type , and Material Type for the polygon.
Mesh types include Patch , Paving , Scalar Paving Density , and Constant Paving Density .
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 .
Material types can be assigned to a polygon using materials previously created in Materials Data dialog.
Expand 3. Preview and edit the polygon mesh.
Select the Preview Mesh button.
Use the preview tools to edit the mesh.
Set Arc Options to adjust distribution of vertices.
Use Node Options to change how arcs are treated when using a patch mesh type.