QGis Processing Tools

Interpolation (Processing toolbox)

The following 4 tools have been mostly explored and the results were compared. The ones used for quick analysis are 1. Cubic Spline and 2. . The rest of the tools are for further exploration and used depending on the need of the project. In some tools, the elevation values of points should be stored in the attribute table (Using field calculator and giving command - Z($Geometry) )

  1. Interpolate (Cubic spline) - SAGA
  2. - GRASS. Parameters to set - cell size. Set this parameter above 0.001 ( 0.00001, 0.000001 etc) and check the results.
  3. - GRASS
  4. Krigging - SAGA