DMMF (version 0.5.2.0)

MapChecker: Map checker for raster layers

Description

Simple boundary, sink and stand checker for DEMs (Digital Elevation Models).

Usage

MapChecker( DEM )

Value

The output of the function MapChecker is a RasterLayer object of the boundary, sink, and stand.

Arguments

DEM

RasterLayer object of digital elevation model (DEM) which needs sinkfill for DMMF model

Author

Kwanghun Choi

Details

Simple boundary, sink and stand checker for DEMs (Digital Elevation Models). The code defines a cell as a

• boundary: when there are at least one NA values and at least one cell with valid value in adjacent cells.

• sink: when all adjacent cells of it are higher than the target cell.

• stand: when all adjacent cells of it are higher than or equal to the target cell.

See Also

Potato.Convex for the description of the data.

Examples

if (FALSE) {
## Load example data for test running B_Checker function
data(Potato.Convex)
attach(Potato.Convex)
## Run B_Checker function with original DEM which has internal sinks.
DEM <- s.map$DEM_original
MapCheck <- MapChecker( DEM )
## Check maps
par(mfrow=c(2,2))
plot(DEM)
plot(MapCheck$boundary)
plot(MapCheck$sink)
plot(MapCheck$stand)
}