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CALC_VOLUME_BETWEEN_SURFACES

Marius Lazar
Updated

CALC_VOLUME_BETWEEN_SURFACES

Calculates the volume between two elevation grids. If you specify an area layer, the volume will be calculated for each feature, and volume attributes will be added to the feature. The following parameters are supported by the command:

  • LAYER1_FILENAME - specifies the base elevation grid. Elevations in LAYER2_FILENAME will will be subtracted from elevations in this layer during the volume calculations.
  • LAYER2_FILENAME - specifies the elevation grid with values that will be subtracted from LAYER1_FILENAME.
  • AREA_FILENAME - An optional layer that contains area features. If it is specified, the volume will be calculated for each area, and the volume attributes will be added to the feature.
  • VOLUME_UNIT - specifies the unit to be used for the volume calculations. This parameter is optional, and the default is CUBIC_METERS. Valid values are:
    • ACRE_FEET
    • ACRE_INCHES
    • BARRELS
    • BARRELS_OIL
    • CUBIC_FEET
    • CUBIC_METERS
    • CUBIC_YARDS
    • GALLONS
  • OUTPUT_FILENAME - specifies the path and file name of the output file for volume statistics.
Specify Bounds for Operation

See also Specify Bounds for Operation

  • GLOBAL_BOUNDS - specifies the combine bounds in units of the current global projection. There should be 4 values in a comma-delimited list following the parameter name. The values should be in order of minimum x, minimum y, maximum x, maximum y.
  • GLOBAL_BOUNDS_SIZE - specifies the combine bounds in units of the current global projection. There should be 4 values in a comma-delimited list following the parameter name. The values should be in order of minimum x, minimum y, width in x, width in y.
  • LAT_LON_BOUNDS - specifies the combine bounds in latitude/longitude degrees. There should be 4 values in a comma-delimited list following the parameter name. The values should be in order of west-most longitude, southern-most latitude, eastern-most longitude, northern-most latitude.
  • LAYER_BOUNDS - specifies that the operation should use the bounds of the loaded layer(s) with the given filename. For example, to export to the bounds of the file "c:\test.tif", you would use LAYER_BOUNDS="c:\test.tif". Keep in mind that the file must be currently loaded.
  • LAYER_BOUNDS_EXPAND - specifies that the operation should expand the used LAYER_BOUNDS bounding box by some amount. The amount to expand the bounding rectangle by should be specified in the current global projection. For example, if you have a UTM/meters projection active and want to expand the bounds retrieved from the LAYER_BOUNDS parameter by 100 meters on the left and right, and 50 meters on the top and bottom, you could use LAYER_BOUNDS_EXPAND="100.0,50.0". You can also specify a single value to apply to all 4 sides, or supply 4 separate values in the order left,top,right,bottom.
  • SNAP_BOUNDS_TO_MULTIPLE - specifies that the top-left corner of the bounding box for the operation should be snapped to a multiple of the given value. For example, using SNAP_BOUNDS_TO_MULTIPLE=1 will snap the top-left corner to the nearest whole number. The values will always go smaller for X/easting/longitude and larger to Y/northing/latitude so you always get at least what is requested.
  • SNAP_BOUNDS_TO_SPACING - specifies that the top-left corner of the bounding box for the operation should be snapped to a multiple of the resolution of the operation. For example, if you are exporting at 5 meter spacing, the top left corner will be snapped to the nearest multiple of 5. Use SNAP_BOUNDS_TO_SPACING=YES to enable or SNAP_BOUNDS_TO_SPACING=NO to disable. If not provided, the global setting for snapping exports to the nearest sample spacing boundary from the Advanced section of the General tab of the Configuration dialog will be used.
  • USE_EXACT_BOUNDS - specifies that the exact bounds that were defined in the command should be used. Generally, when the bounds specified in a command are not the same as the data bounds, the command uses the intersection between the two. When USE_EXACT_BOUNDS=YES is specified, the command will use the bounds as specified, instead of the intersection.

SAMPLE

CALC_VOLUME_BETWEEN_SURFACES LAYER1_FILENAME="P:\Data\baseGrid.tif" \
LAYER2_FILENAME="P:\Data\lidarGrid2.dem" \
AREA_FILENAME="P:\Data\ClipAreas.shp" \
VOLUME_UNIT="CUBIC_FEET" \
OUTPUT_FILENAME="%OUTDIR%\fromScript_wClip.csv"

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