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I have two layers, one is a point layer of schools and another is a polyline layer of streets. The end goal is to create a buffer along the lines that is 20 feet from the centerline that goes 1 mile in distance from the school/point layer.

Perhaps I am not phrasing this question correctly so if it is already answered somewhere else, I would gladly accept that.

I am using QGIS, which I am brand new to using. I have several years experience with ArcGIS (student license expired since graduation).

Would the plugin for QChainage accomplish this? Has anyone used this plugin?

If I had access to ArcGIS, it looks like this would be a Linear Referencing question. Would Locate Features Along Route be able to solve this problem?

Edit: Measuring the distance between lines and points in QGIS looks like it's finding the distance from a point to a line which is not what I am asking. I am asking to find the distance along a line from a point.

closed as unclear what you're asking by Andre Silva, John Powell, Mapperz Apr 27 '16 at 21:30

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Possible duplicate of Measuring the distance between lines and points in QGIS – ArMoraer Apr 27 '16 at 13:11
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    This looks like it's finding the distance from a point to a line which is not what I am asking. I am asking to find the distance along a line from a point. – giscard78 Apr 27 '16 at 13:25
  • In that case, this post might help you: QGIS calculate distance of point along a line. If it still doesn't help, please consider adding an image to your question to make it clearer. – ArMoraer Apr 27 '16 at 13:29
  • Buffer the schools by 1 mile. Use those buffers to select the roads/lines within the buffers (might have to extract the data). Now buffer the lines by 20 ft. – mkennedy Apr 27 '16 at 17:09
  • @mkennedy the distance will be different, particularly if the road turns or going on to a new road. – giscard78 Apr 27 '16 at 17:42