mls_length
Geometric functions mls_length
syntax
- mls_length(mls_dataitem, valuesunit of coordinate system)
- mls_length(mls_dataitem)
definition
mls_length(multi-linestring dataitem, valuesUnit) calculates the total length for each Arc value in a Data item mls_dataitem.
The resulting Values unit is configured as second Argument. Since GeoDMS 20.3.0 it also converts, and it may be left out: mls_length(mls_dataitem) derives the resulting Values unit from the coordinates themselves, so m for a Coordinate system in metres. Since GeoDMS 20.19.2 that single-argument form also works on coordinates that have a Metric, which is the normal case for a projected SpatialReference; before 20.19.2 it crashed the GeoDMS GUI on exactly those coordinates. Arc_length describes both rules in full.