rsaga.add.grid.values.to.points {RSAGA} | R Documentation |
Add Grid Values to Point Shapefile
Description
Pick values from SAGA grids and attach them as a new variables to a point shapefile.
Usage
rsaga.add.grid.values.to.points(
in.shapefile,
in.grids,
out.shapefile,
method = c("nearest.neighbour", "bilinear", "idw", "bicubic.spline", "b.spline"),
...
)
Arguments
in.shapefile |
Input point shapefile (default extension: |
in.grids |
Input: character vector with names of (one or more) SAGA GIS grid files to be converted into a point shapefile. |
out.shapefile |
Output point shapefile (default extension: |
method |
interpolation method to be used; choices: nearest neighbour interpolation (default), bilinear interpolation, inverse distance weighting, bicubic spline interpolation, B-splines. |
... |
Optional arguments to be passed to |
Details
Retrieves information from the selected grids at the positions of the points of the selected points layer and adds it to the resulting layer.
Note
This function uses module Add Grid Values to Points
in SAGA GIS library shapes_grid
.
Author(s)
Alexander Brenning (R interface), Olaf Conrad (SAGA modules)
See Also
pick.from.points()
, pick.from.ascii.grid()
, pick.from.saga.grid()
, rsaga.grid.to.points()