native:exportaddgeometrycolumns
How QGIS runs Measure Length: native:exportaddgeometrycolumns.
| Engine | QGIS |
|---|---|
| Tool name | native:exportaddgeometrycolumns |
| Interface | qgis-process |
| Implements | Measure Length |
| Variant of | qgis-native-exportaddgeometrycolumns |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
INPUT | source | yes | Not stated | Not stated | Not stated |
METHOD | enum | yes | 0 | 0, 1, 2 | 0 Cartesian Calculations in Layer's CRS, 1 Cartesian Calculations in Project's CRS, 2 Ellipsoidal Calculations |
OUTPUT | sink | yes | Not stated | Not stated | output |
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
layer | INPUT | Not stated |
output | OUTPUT | Not stated |
unit | Not stated | always crs-units. CRS units (metres in a metric CRS); METHOD 2 measures on the ellipsoid. |
Differences from the operation
- Adds a length field to lines (area and perimeter to polygons).
Harvested by the qgis harvester from engine version
4.2.3. Names can change when an engine is harvested again.