3

I have shapefiles of a road network and five points. What I would like to do is measure the distance from each point along the road network using QGIS, but am struggling to achieve this. So far, I have tried both v.net.distance and v.net.iso, to no avail. Each attempt returns 'Error: Vector map not found'. What could I be doing wrong?

3

If you use the QGIS Desktop 2.xx with GRASS 7.xx application then you may need to first import your road network and points layer.

You could use:

  • v.in.ogr - to import your layers using their path or
  • v.in.ogr.qgis - if your layers are already loaded into QGIS

You can access these tools from the menubar:

 Plugins > GRASS > Open GRASS Tools

GRASS Tools


Note that you may need to create a GRASS mapset first before using the tools.

  • 1
    Thank you, I did try this, but was still unsuccessful. I think the area is just too large. I eventually managed to achieve what I wanted using the Rocky Branches - Road Network and Contour plugins. – Bernie Sep 9 '16 at 6:44
  • @Bernie - Most welcome and glad you found a solution! You should post an answer decribing how you solved your problem and accept it by clicking the green-faded tick once posted :) – Joseph Sep 12 '16 at 9:06

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.