Description Usage Arguments Details Value
Covers a shape with a DEM grid
1 2 | OverlayDEM(geom1, tileindex, DEM_dir, output_dir, tol, product = "CDED",
tileid_field = "NTS_SNRC", ...)
|
geom1 |
An R Spatial* object to be covered with the DEM |
tileindex |
spatialpointspolygon of DEM tile indices or path to shapefile of tile index |
DEM_dir |
directory where DEM tiles are stored |
output_dir |
where output DEM should be saved |
tol |
(optional) how wide should geom1 be buffered (metres) before determining how big the DEM needs to be to cover it |
tileid_field |
Name of column in tileindex that gives DEM sheet number |
... |
optional arguments passed to CompileDEM |
Builds a DEM from elevation dataset that either extends a fixed distance on either side of a spatialobject (if a tol(erace) is specified) or intersects the DEM index (if tileindex is specified)
name of output DEM
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