0

I have 12 delimited text csv files with regular pseudo-gridded points for temperature and salinity which look like this when zoomed in (inc distances) and this when zoomed out. I'm trying to convert them to a smooth surface layer - assumedly interpolated - but using the interpolation plugin on a vector layer saved from one of the csv's produced this kind of output, irrespective of how many columns I use.

How do I turn my grids of dots into a nice smooth surface that I can use colour interpolation on?

0

2 Answers 2

3

If you have a regular point grid, you can use Raster | Conversion | Rasterize to create a raster with exactly the attribute values of the input points converted onto raster values. No interpolation or other manipulation of attribute/raster values is applied.

0
1

You could use one of the interpolation functions in ArcGIS. Since they are regularly spaced, Inverse Distance Weighted would work without making too many assumptions.

Your Answer

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

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