2

I have created a series of DEMs that layercake on top of each other.

I would like to be able to lookup a coordinate and get the elevation that has already been interpolated. The goal is to introduce a new data point (coordinate and elevation) and determine which layer of the cake the new point is closest to.

I am using QGIS.

1 Answer 1

3

You could use the Point Sampling Plugin. This can handle multiple points in the input file. In the output you will have a series of fields named after your raster layers (the names may be truncated). You can then compare your point elevation to the values in the fields and perhaps create a new field populated via a conditional expression that finds the nearest match and gives a value to each point that identifies the relevant DEM layer.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

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