User:Jcreer/SMS:Compute Volumes Workflow: Difference between revisions

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:# Select the polygon (or polygons) that cover the region you want to compute the volume for
:# Select the polygon (or polygons) that cover the region you want to compute the volume for
:# Use '''Select/Delete Data...''' command in the ''Feature Objects'' menu.  
:# 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 ''Select/Delete Data'' dialog.
:# Compute volume in the ''Select/Delete Data'' dialog.
::# Leave the ''Data Domain'' setting as "Inside polygon(s)"
::# Leave the ''Data Domain'' setting as "Inside polygon(s)"

Revision as of 15:12, 28 June 2017

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 data files.
1. Gather and open image files.

Images are imported into the GIS module in SMS.

1. Open local images.
  1. Load images from local computer files using the File | Open... command.
  2. Alternatively, drag and drop the file into the Graphics Window in SMS.
2. Import images from the web.
1. Import static images.
  1. Use the File | Import from Web command.
  2. Select a location in the Virtual Map Locator.
  3. Set a projection for the project using the Display Projections dialog.
  4. Use the Data Service Options dialog to select a web service or catalog.
    • Use the Advanced options if needing to access a unique or unavailable data source.
  5. Save the data file and import the data into SMS.
2. Import dynamic images.
  1. Use the File | Add Online Maps command.
  2. Select a location in the Virtual Map Locator.
  3. Set a projection for the project using the Display Projections dialog.
  4. Use the Data Service Options dialog to select a web service or catalog.
  5. Save the data file and import the data into SMS.
2. Gather and open geometric data files.
1. Import map data.
  1. Use the File | Open... command to import map data such as Map files, boundary ID files, or boundary XY files.
  2. Alternately, drag and drop the file into the Graphics Window in SMS.
2. Import GIS data.
  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.
3. Import scatter data.
  1. Use File | Open... to open files with scatter data such as scatter point files, ASCII dataset files, binary dataset files, tabular data files, or XYZ files.
  2. Alternatively, drag and drop the file into the Graphics Window in SMS.
  3. Use the File Import Wizard to specify how to import the data.
4. Import CAD data.
  1. Verify the CAD file type is readable by SMS before importing it. SMS can import DXF and DWG files.
  2. Use the File | Open... command to launch the Open dialog (or drag and drop) to import the CAD files.
The data should load in layers into the Project Explorer.
5. Review and set object projections.
  1. Right-click on an object in the Project Explorer and select the Projection command.
  2. Set the horizontal and vertical projection using the Object Projection dialog.
  3. To set a global projection, use the Horizontal Projection dialog.
2. Select the desired "delta" dataset
The delta dataset with the elevation values needs to be active to calculate volumes. The dataset can be:
  • 2D Mesh
  • 2D Scatter set
  • UGrid
3. Load or define the polygon for the delta volume area.
  1. Importing a polygon for the delta volume.
  2. Define the polygon for the delta volume.
4. Make certain the Volume option is on.
  1. Select the File | Info option... menu command.
  2. In the Selection Information dialog, make certain Volume is turned on.
    • If desired, unselect quantities that are not of interest.
5. Compute volume in the Select/Delete Data dialog.
  1. Select the polygon (or polygons) that cover the region you want to compute the volume for
  2. Use Select/Delete Data... command in the Feature Objects menu.
  3. Compute volume in the Select/Delete Data dialog.
  1. Leave the Data Domain setting as "Inside polygon(s)"
  2. Select the geometry in the tree on the lower right side then select
    • "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)

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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