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?
Best Answer
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.