4

I am trying to create buffers around the Hurricane Sandy path I created in QGIS (points are lat/long).

I have both points from each day she was tracted and the line I created from it with Points2One.

When I go to make buffers around either the line or the points, the buffer takes up the whole screen. Its all just one color.

I have made buffers before but from data I did not create.

Right now all of my projections are set to WGS 84 EPSG 4326.

10

It sounds like you are entering a value in miles or km (ie 10) but the projection is in geographic. The buffer tool will interpolate that as a 10 degree buffer. You will need to do one of two things:

  1. translate your value to equal the buffer size in degrees, or,
  2. reproject your data into a projection that is not geographic
1

Ryan is right - your buffer is in Degrees.

Right click your layer in QGIS and the click "Save as...". You have the opportunity to pick a CRS (Projection) for your data. Pick Selected CRS and then browse for an appropriate projection. I will assume you only have data covering the Eastern part of New York - If so perhaps you want EPSG:2260 (so you would have your data in feet). If you've tracked it from beginning to end you'll need something maybe in an equal area projection (?).

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.