Description Usage Arguments Details Value Author(s) References Examples

View source: R/mkdeFunctions.R

A lower-level function for calculating a cell area matrix (2D array) from an elevation matrix. The area is based on the surface area of the terrain in the cell. The area matrix is then used in calculating areas of 2.5D MKDES.

1 | ```
computeAreaRaster(RelevMatrix, RcellSize)
``` |

`RelevMatrix` |
A 2D array with elevation values. |

`RcellSize` |
Size of the cells. It is assumed to be the same in the x and y dimensions. |

This is a wrapper function for C++ function that calculates the surface area of each raster cell given the cell elevations. It is not intended to be used directly; instead, the user should call `initializeAreaRaster`

on an MKDE object.

A 2D matrix of cell surface areas.

Jeff A. Tracey, PhD

USGS Western Ecological Research Center, San Diego Field Station

[email protected]

James Sheppard, PhD

San Diego Zoo Institute for Conservation Research

[email protected]

Jenness J.S. (2004) Calculating landscape surface area from digital
elevation models. Wildlife Society Bulletin 32: 829-839.

Jenness, J.S. (2014) Calculating landscape surface area from
unprojected digital elevation models. In preparation.

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