The CALC_VOLUMES command allows you to calculate the volume for each area in the specified layer using the currently loaded terrain data.
The following parameters are supported by the command:
- FILENAME - filename of the layer containing the areas to be used in the calculations. This parameter can be listed more than once to specify multiple input files, like FILENAME="FILENAME_1" FILENAME="FILENAME_2".
- OUTPUT_FILENAME - specifies the path and file name of the output file for volume statistics. At least one of this and the ADD_VOLUME_ATTRS parameter is required. Using both is valid also.
- ADD_VOLUME_ATTRS - indicates whether or not to add the volume measurements to the area features as attributes. Use ADD_VOLUME_ATTRS=YES to add the volume data to the feature attribute list. At least one of this and the OUTPUT_FILENAME parameter is required. Using both is valid also.
- BASE_ELEVATION - specifies the base elevation in meters for volume calculations. This parameter is optional. The default is 0.
- BASE_ELEVATION_ABOVE_SEA_LEVEL- Use BASE_ELEVATION_ABOVE_SEA_LEVEL=YES (or don't specify any value) to indicate that the BASE_ELEVATION parameter represents units above sea level. Use BASE_ELEVATION_ABOVE_SEA_LEVEL=NO to indicate that the base elevation is relative to ground. The default is NO, base elevation is relative to ground.
- 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
SAMPLE
Here is a sample of calculating volumes in cubic feet, adding the results to the features as attributes.
GLOBAL_MAPPER_SCRIPT VERSION=1.00 CALC_VOLUMES FILENAME="boundaries 2.dxf" ADD_VOLUME_ATTRS=YES