R/rowmx2ras_function.R

In niknap/slidaRtools: Tools for lidar simulation and lidar processing

# Copyright (C) 2017 Dr. Nikolai Knapp, UFZ
#
# This file is part of the slidaRtools R package.
#
# The slidaRtools R package is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# slidaRtools is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with slidaRtools If not, see <http://www.gnu.org/licenses/>.



#' Convert byrow-matrix to raster
#'
#' Convert a matrix with origin in upper left corner and with cell order from
#' left to right (byrow) to a raster with origin in lower left corner
#' @param mx Input matrix
#' @return Raster object
#' @keywords matrix raster conversion byrow transposition coordinate origin
#' @export
#' @examples in progress
#' @author Nikolai Knapp

rowmx2ras <- function(mx){
  #require(raster)
  mx <- mx[nrow(mx):1,]
  ras <- raster(mx, xmx=ncol(mx), ymx=nrow(mx))
  return(ras)
}