SMS:2D Mesh Polygon Properties: Difference between revisions
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The following polygon attributes can be set: | The following polygon attributes can be set: | ||
* '''Mesh Type''' – Specify the mesh generation algorithm. The following options are available: | * '''Mesh Type''' – Specify the mesh generation algorithm. The following options are available: | ||
<blockquote> | |||
** [[SMS:Patch|Patch]] | ** [[SMS:Patch|Patch]] | ||
** [[SMS:Paving|Paving]] | ** [[SMS:Paving|Paving]] | ||
** [[SMS:Paving#Scalar Paving Density|Scalar Paving Density]]. | ** [[SMS:Paving#Scalar Paving Density|Scalar Paving Density]]. | ||
</blockquote> | |||
* '''Bathymetry Type''' – Specify the bathymetry source for assignment to the mesh. The following options are available: | * '''Bathymetry Type''' – Specify the bathymetry source for assignment to the mesh. The following options are available: | ||
<blockquote> | |||
** Constant – assignes a constant elevation value to all nodes in the mesh | ** Constant – assignes a constant elevation value to all nodes in the mesh | ||
** Scatter Set – [[SMS:Scatter Interpolation|interpolates]] elevation values from the specified [[SMS:Scatter Module|scatter set]] | ** Scatter Set – [[SMS:Scatter Interpolation|interpolates]] elevation values from the specified [[SMS:Scatter Module|scatter set]] | ||
** Existing Mesh – interpolates elevation values from an existing 2D mesh | ** Existing Mesh – interpolates elevation values from an existing 2D mesh | ||
</blockquote> | |||
* '''Material''' – [[SMS:2D Mesh Elements Menu|material type]] to assign to elements created within the polygon | * '''Material''' – [[SMS:2D Mesh Elements Menu|material type]] to assign to elements created within the polygon | ||
* '''Arc Options''' – Used to modify the feature vertices along the arc. The arc must be selected in the polygon preview window. The following options are available: | * '''Arc Options''' – Used to modify the feature vertices along the arc. The arc must be selected in the polygon preview window. The following options are available: | ||
<blockquote> | |||
** Use Original Vertices | ** Use Original Vertices | ||
** Distribute Vertices – Change the number of vertices along the arc. A bias can be specified rather than distributing the vertices with a constant spacing. | ** Distribute Vertices – Change the number of vertices along the arc. A bias can be specified rather than distributing the vertices with a constant spacing. | ||
</blockquote> | |||
* '''Node Options''' – When the mesh type is set to [[SMS:Patch|Patch]], the node options are used to define the 3 or 4 sides for the patch mesh generation. If a feature point is selected in the polygon preview window, the following options are available: | * '''Node Options''' – When the mesh type is set to [[SMS:Patch|Patch]], the node options are used to define the 3 or 4 sides for the patch mesh generation. If a feature point is selected in the polygon preview window, the following options are available: | ||
<blockquote> | |||
** Split – The mesh generation algorithm will treat the two arcs meeting at the feature point as separate sides. | ** Split – The mesh generation algorithm will treat the two arcs meeting at the feature point as separate sides. | ||
** Merge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a single side. | ** Merge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a single side. | ||
** Degenerate Edge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a "degenerate edge." When using a degenerate edge, the Patching algorithm will require only 3 sides to be defined. This option is only valid for meshes which allow triangular elements. Only one degenerate edge can be specified per feature polygon. | ** Degenerate Edge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a "degenerate edge." When using a degenerate edge, the Patching algorithm will require only 3 sides to be defined. This option is only valid for meshes which allow triangular elements. Only one degenerate edge can be specified per feature polygon. | ||
</blockquote> | |||
== Related Topics == | == Related Topics == |
Revision as of 19:40, 13 December 2013
The 2D Mesh Polygon Properties dialog is used to set meshing options for the conceptual model. See Mesh Generation for a discussion of the conceptual modeling approach.
To access the 2D Mesh Polygon Properties go to Feature Objects | Attributes. The 2D Mesh Polygon Properties dialog will open. Double-clicking inside a polygon will also bring up the 2D Mesh Polygon Properties.
The following polygon attributes can be set:
- Mesh Type – Specify the mesh generation algorithm. The following options are available:
- Bathymetry Type – Specify the bathymetry source for assignment to the mesh. The following options are available:
- Constant – assignes a constant elevation value to all nodes in the mesh
- Scatter Set – interpolates elevation values from the specified scatter set
- Existing Mesh – interpolates elevation values from an existing 2D mesh
- Material – material type to assign to elements created within the polygon
- Arc Options – Used to modify the feature vertices along the arc. The arc must be selected in the polygon preview window. The following options are available:
- Use Original Vertices
- Distribute Vertices – Change the number of vertices along the arc. A bias can be specified rather than distributing the vertices with a constant spacing.
- Node Options – When the mesh type is set to Patch, the node options are used to define the 3 or 4 sides for the patch mesh generation. If a feature point is selected in the polygon preview window, the following options are available:
- Split – The mesh generation algorithm will treat the two arcs meeting at the feature point as separate sides.
- Merge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a single side.
- Degenerate Edge – The mesh generation algorithm will treat the two arcs meeting at the feature point as a "degenerate edge." When using a degenerate edge, the Patching algorithm will require only 3 sides to be defined. This option is only valid for meshes which allow triangular elements. Only one degenerate edge can be specified per feature polygon.
Related Topics
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