[GIS] QGIS: Creating Circles Around Points Imported from a Excel File (Lat, Long)

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I am new to the QGIS platform and have been experimenting with the tool. I currently have a Basemap layer and a Shapefile layer on top of it. Now,

  1. I want to import a .csv file containing (lat, long) coordinates for a set of points (say 20) as a layer.
  2. I want to create a layer( or superimpose in the above layer), circles of a specified radius around each of these points.

How do I do these?

Best Answer

It sounds like you want to buffer your point layer?

  • Load your data as Joseph describes
  • Go to the menu Vector/Geoprocessing Tools/Buffer(s)
  • In the dialogue box choose your input layer (possibly only accepts shp - so you might need to save your csv as shp first)
  • then set your buffer distance and specify an output file.

Other parts of the dialogue box are optional. You can read more in the QGIS docs: http://docs.qgis.org/2.2/en/docs/gentle_gis_introduction/vector_spatial_analysis_buffers.html

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