The ADD_MEASURE_ATTRS command allows you to add/update feature measure attributes to all of the line and area features in a loaded vector layer.
The following parameters are supported by the command:
- FILENAME - filename of the layer to update. If an empty value is passed in, all layers that were created by the script, such as those from a GENERATE_CONTOURS command, will be updated. When running the script in the context of the main map view (including loading a workspace) you can also pass in the value 'USER CREATED FEATURES' to have the 'User Created Features' layer updated or 'SELECTED LAYERS' to have any layers selected in the Control Center.
- AREA_UNITS - specifies the units to use when storing area measurements. The following values are supported:
- ACRES
- HECTARES
- "SQUARE FEET"
- "SQUARE KILOMETERS"
- "SQUARE METERS"
- "SQUARE MILES"
- DISTANCE_UNITS- specifies the units to use when storing linear distance measurements. The following values are supported:
- METRIC - meters for shorter distances, kilometers for longer
- STATUTE - feet for shorter distances, miles for longer
- YARDS - yards for shorter distances, kilometers for longer
- NAUTICAL - feet for shorter distances, nautical miles for longer
- CHAINS - chains for shorter distances, miles for longer
- MEASURE_UNIT_TYPE - specifies how to handle measurement values of different sizes
- AUTO - automatically use base units for smaller measurements and large units for long (i.e. meters for shorter distances, kilometers for longer)
- BASE - always use base units, regardless of size. For example, always use meters for distance. Use this if you want to numerically compare values
- LARGE - always use large units, regardless of size. For example, always use kilometers for distance. Use this if you want to numerically compare values