rsaga.add.grid.values.to.points {RSAGA} | R Documentation |
Pick values from SAGA grids and attach them as a new variables to a point shapefile. THIS SAGA MODULE CURRENTLY SEEMS TO CRASH SAGA (but not R).
rsaga.add.grid.values.to.points(in.shapefile, in.grids, out.shapefile, method = c("nearest.neighbour", "bilinear", "idw", "bicubic.spline", "b.spline"), ...)
in.grids |
Input: character vector with names of (one or more) SAGA grid files to be converted into a point shapefile. |
in.shapefile, out.shapefile |
In/Output: point shapefiles
(default extension: .shp ). |
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 rsaga.geoprocessor ,
including the env RSAGA geoprocessing environment. |
Retrieves information from the selected grids at the positions of the points of the selected points layer and adds it to the resulting layer.
This function uses module 0 in SAGA library shapes_grid
.
Alexander Brenning (R interface), Olaf Conrad (SAGA modules)
pick.from.points
, pick.from.ascii.grid
,
pick.from.saga.grid
, rsaga.grid.to.points