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I work in a country which is divided in election destricts(polygon shp). I have the roads of the country as a vector layer (vector shp).

I want to find a tool for QGIS like sum line lengths of qgis (perhaps a plug-in) to do the same work as the above-mentioned one but only for the curved lines of roads not the straight lines or the opposite. I use either ArcGis or QGis.

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    You will need to provide much more information about the format and what you have tried. – John Powell Jul 3 '16 at 19:26
  • What GIS software are you using? – PolyGeo Jul 3 '16 at 20:22
  • For same origin and destination, a straight line should have lower length that the curved ones. Consider adding a screenshot of the study area. – blu_sr Jul 4 '16 at 16:08

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