I would like to calculate line sinuosity for line segments.
The sinuosity is defined as a ratio of the distance between start and end point along a line (line length) and the euclidean distance between both points. A large sinuosity signifies a large detour between start and end point and is shown as the red line in the next image:
Caculating this measure is straightforward in GRASS GIS with:
v.to.db map=lines option=sinuous columns=sinuosity
v.to.db is not part of QGIS processing and cannot be called from within the QGIS Python shell.
Is there another option to calculate line sinuosity in PyQGIS?
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