Getting length in meters of features in line type layer using PyQGIS

Question

I want to get the length in meters of features with line-type geometry independent of the CRS of the layer and project.

Is there any way to do this?

I used the code below but I'm not sure of the unit of measurement.

p = QgsProject.instance()
layer = p.mapLayersByName('rede')[0]

d = QgsDistanceArea()
d.setEllipsoid('WGS84')

for feat in layer.getFeatures():
    print(d.convertAreaMeasurement(d.measureLength(feat.geometry()), 1)*1000)

Answer 1

You can run:

print(d.lengthUnits())

after you have defined your ellipsoid to see what the units of measurement for length are. Using your example code above, it results in DistanceUnit.Meters.

Ref: https://qgis.org/pyqgis/master/core/QgsDistanceArea.html