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John Marriott
Oct 26, 2017, 12:41:38 PM10/26/17
to openrouteservice.org
ORS is completely new to me but I have some limited experience of QGIS.
I have used ORS in QGIS to generate a series of four time isochrones (10, 20, 30 & 40 min) for a point. The polygons appear on the map and look very reasonable,
I have a raster containing population totals on a 1km grid.
I have used Zonal Statistics to calculate the population sum for various polygons that I have created but it does not appear to calculate the statistics if I use the Isochrone polygon(s).
Can anyone help?
John
I have used ORS in QGIS to generate a series of four time isochrones (10, 20, 30 & 40 min) for a point. The polygons appear on the map and look very reasonable,
I have a raster containing population totals on a 1km grid.
I have used Zonal Statistics to calculate the population sum for various polygons that I have created but it does not appear to calculate the statistics if I use the Isochrone polygon(s).
Can anyone help?
John
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