I am looking for a way to create points along lines (roads) at set elevation differences (0.5m height differences) using QGIS.

closed as unclear what you're asking by ahmadhanb, TomazicM, Taras, MrXsquared, xunilk Oct 20 at 21:07

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  • 6
    Well what data do you have? Do you have a DEM? What resolution? – Liam G Oct 20 at 7:19
  • I am running QGIS 3.2.1. I am not using a DEM, I have line strings that have z-values. I essentially need to determine points along those lines that differ 0.5m in elevation one after the other. – drew3 Oct 20 at 15:01
  • OK we still need more info on your data model. Does each line segment have a single z value that represents the entire line? Is each line split at each vertex and have a z value for each vertex in the attribute table? – Liam G Oct 21 at 7:29
  1. Compute contour lines from your elevation raster
  2. Intersect your road layer with the contour lines using the line intersection tool.

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