I have polyline strings with vertices of known elevation / z height and intermediate vertices with null/zero height. KnownKnown Zs are spread throughout the line. I'd like to be able to populate the z of the intermediate vertices by linear interpolation between those known points.
I think this is functionality in Arc using IZ.InterpolateZsBetween? Unable to verify due to no Arc access. SeekingSeeking functionality in QGIS or any alternative open package?