View source for User:Jcreer/SMS:Compute Volumes Workflow

SMS has the ability to compute volumes. Certain datasets and project features are required in order to complete this process.
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!style="text-align:left;"|Required data and project features.
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:*Geometry &ndash; 2D mesh, UGrid, or scatter set.
:*Delta dataset on the geometry of the spatially varied elevation.
:**This can be computed in the [[SMS:Dataset Toolbox|''Dataset Toolbox'']].
:**Examples include:
:***Delta bed dataset computed by a sediment transport model.
:***Delta water surface elevation computed from two different water surface values.
:*Polygon of region to be evaluated.
:**Can be defined interactively but defining it in a map coverage is recommended.
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To compute volumes in SMS, use the following steps:
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!style="text-align:left;"|1. Load data files.
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<blockquote>
{{SMS Import Data Workflow}}
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!style="text-align:left;"|2.  Select the desired "delta" dataset
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:: The delta dataset with the spatially varied elevation needs to be active to calculate volumes. The dataset can be on of the following:
::* 2D Mesh
::* 2D Scatter set
::* UGrid/Quadtree
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!style="text-align:left;"|3. Load or define the polygon for the delta volume area.
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: A polygon on an [[SMS:Coverages|map coverage]] is needed to compute volumes.
<blockquote>
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!style="text-align:left;"|1. Use an existing map coverage or create a new map coverage.
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<blockquote>
{{SMS new coverage workflow}}
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!style="text-align:left;"|2. Import a polygon for the delta volume.
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:If there is a file with with the define polygon available, use this option.
:# Use the [[SMS:File Menu|''File'' | '''Open''']] menu command to open a file containing a polygon.
:# Depending on the file type, the polygon may need to be converted to a map coverage.
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!style="text-align:left;"|3. Define the polygon for the delta volume.
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:Use this option if a new polygon needs to be defined.
<blockquote>
{{SMS Create Polygons Workflow}}
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</blockquote>
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!style="text-align:left;"|4. Make certain the ''Volume'' option is on.
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:# Select the [[SMS:File Menu|''File'' | '''Info option...''']] menu command. 
:# In the [[SMS:File Menu#Info|''Selection Information'']] dialog, make certain ''Volume'' is turned on.
:#* If desired, unselect quantities that are not of interest.
:#* If wanting to create a file with computed volume, turn on the ''Echo to File'' option.
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!style="text-align:left;"|5. Compute volume in the [[SMS:Select/Delete Data...|''Select/Delete Data'']] dialog.
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:# Using the [[SMS:Map_Module_Tools|'''Select Polygons''']] [[File:SMS Select Polygon Tool.svg|16 px]] tool, select the polygon(s) that covers the computation region.
:# Use [[SMS:Map_Feature_Objects_Menu#General_Commands|'''Select/Delete Data...''']] command in the [[SMS:Map_Feature_Objects_Menu#General_Commands|''Feature Objects'']] menu. 
:# Compute volume in the [[SMS:Select/Delete Data...|''Select/Delete Data'']] dialog.
::# Leave the ''Data Domain'' setting as ''Inside polygon(s)''.
::# Select the geometry in the tree on the lower right side.
::#*"Elements" if the geometry is a mesh.
::#*"Triangles" if the geometry is a scatter set.
::#*"Cells" if the geometry is a UGrid.
::SMS will switch the module to the geometry module and select the elements, cells, or triangles inside the polygon(s).
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!style="text-align:left;"|6. View results.
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:# The volume will be reported in the [[SMS:Help or Status Window|Status Bar]] at the bottom of the Graphics Window.
:# The ''Echo to File'' option in the [[SMS:File_Menu#info|''Selection Information'']] dialog allows for the results to be saved to a file or displayed in a separate window.

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<!--[Original email text]

Computing volumes with SMS
Required:
Geometry - 2D Mesh or Scatterset
Delta dataset on the geometry of the spatially varied elevation.
   - This can be computed in the dataset toolbox
   - Examples include:
      - Delta bed dataset computed by a sediment transport model
      - Delta water surface elevation computed from two different water surface values
Polygon of region to be evaluated
   - Can be defined interactively but recommendation is to define it in a map coverage

Setup steps:
1- Load the geometry
2- Load the datasets
3- Select the desired "delta" dataset
4- Load or define the polygon for with delta volume is desired
5- In "File|Info option.." make sure "Volume" is turned on.  (You may want to unselect quantities that are not of interest to simplify the message.)

Operation steps:
1- Switch to the "Map" module
2- Select the polygon (or polygons) that cover the region you want to compute the volume for
3- Use "Select/Delete Data..." command in the "Feature Objects" menu.  Dialog appears.
4- Leave the "Data Domain" setting as "Inside polygon(s)"
5- Select the geometry in the tree on the lower right side.
6- Select "Mesh|Elements" if the geometry is a mesh or "Scatter|Triangles" if the geometry is a scatter set.
7- Select "OK" - SMS will switch the module to the geometry module and select the elements/cell or triangles inside the polygon(s)

Results
The volume will be reported at the bottom of the graphics window in the status bar.
The other info options allow for this to be saved to a file or displayed in a separate window.
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{{Navbox SMS}}

[[Category:SMS Workflows]]
[[Category:General Workflows]]