RSAGA (version 1.2.0)

rsaga.close.gaps: SAGA Modules Close Gaps and Close One Cell Gaps

Description

Close (Interpolate) Gaps

Usage

rsaga.close.gaps(in.dem, out.dem, threshold = 0.1, ...)
rsaga.close.one.cell.gaps(in.dem, out.dem, ...)

Arguments

in.dem

input: digital elevation model (DEM) as SAGA grid file (default file extension: .sgrd)

out.dem

output: DEM grid file without no-data values (gaps). Existing files will be overwritten!

threshold

tension threshold for adjusting the interpolator (default: 0.1)

...

optional arguments to be passed to rsaga.geoprocessor(), including the env RSAGA geoprocessing environment

Value

The type of object returned depends on the intern argument passed to the rsaga.geoprocessor(). For intern=FALSE it is a numerical error code (0: success), or otherwise (default) a character vector with the module's console output.

Details

rsaga.close.one.cell.gaps only fill gaps whose neighbor grid cells have non-missing data.

In rsaga.close.gaps, larger tension thresholds can be used to reduce overshoots and undershoots in the surfaces used to fill (interpolate) the gaps.

See Also

rsaga.geoprocessor(), rsaga.env()

Examples

# NOT RUN {
# using SAGA grids:
rsaga.close.gaps("rawdem.sgrd","dem.sgrd")
# using ASCII grids:
rsaga.esri.wrapper(rsaga.close.gaps,in.dem="rawdem",out.dem="dem")
# }