The final product I'm trying to achieve is a Mapbox interactive map with a colored contour layer.

I have a CSV file that contains rows with "LATITUDE,LONGITUDE,VALUE" in a 0.01-degree grid. I want to create a contour map by interpolating the points and creating a raster map. From my research, I have determined that QGIS should be able to do this, but I'm not quite sure how.

I believe I need to output a GeoTIFF to then import into Mapbox. I found this potential solution: https://stackoverflow.com/questions/26715804/how-to-create-interactive-online-map-with-contour-filled-plot-layer, but I'm hoping to get more information on Steps 1 and 2 of that solution.

closed as too broad by PolyGeo Feb 26 '17 at 19:59

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. 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.

  • What precisely have you tried and where are you stuck on "Steps 1 and 2"? I think you should focus on Step 1 first and include details of it within your question so that potential answerers do not have to follow the link. – PolyGeo Feb 26 '17 at 20:01
  • Specifically are you trying to show contour lines on the map, or hill shades or a hypsometric tinted map, or some combination? – AndrewHarvey Feb 27 '17 at 0:49