xyRowColCell | R Documentation |
Get coordinates of the center of raster cells for a row, column, or cell number of a SpatRaster. Or get row, column, or cell numbers from coordinates or from each other.
Cell numbers start at 1 in the upper left corner, and increase from left to right, and then from top to bottom. The last cell number equals the number of cells of the SpatRaster. row numbers start at 1 at the top, column numbers start at 1 at the left.
## S4 method for signature 'SpatRaster,numeric'
xFromCol(object, col)
## S4 method for signature 'SpatRaster,numeric'
yFromRow(object, row)
## S4 method for signature 'SpatRaster,numeric'
xyFromCell(object, cell)
## S4 method for signature 'SpatRaster,numeric'
xFromCell(object, cell)
## S4 method for signature 'SpatRaster,numeric'
yFromCell(object, cell)
## S4 method for signature 'SpatRaster,numeric'
colFromX(object, x)
## S4 method for signature 'SpatRaster,numeric'
rowFromY(object, y)
## S4 method for signature 'SpatRaster,numeric,numeric'
cellFromRowCol(object, row, col)
## S4 method for signature 'SpatRaster,numeric,numeric'
cellFromRowColCombine(object, row, col)
## S4 method for signature 'SpatRaster,numeric,numeric'
rowColCombine(object, row, col)
## S4 method for signature 'SpatRaster,numeric'
rowFromCell(object, cell)
## S4 method for signature 'SpatRaster,numeric'
colFromCell(object, cell)
## S4 method for signature 'SpatRaster,numeric'
rowColFromCell(object, cell)
## S4 method for signature 'SpatRaster,matrix'
cellFromXY(object, xy)
object |
SpatRaster |
cell |
integer. cell number(s) |
col |
integer. column number(s) or missing (equivalent to all columns) |
row |
integer. row number(s) or missing (equivalent to all rows) |
x |
x coordinate(s) |
y |
y coordinate(s) |
xy |
matrix of x and y coordinates |
Cell numbers start at 1 in the upper left corner, and increase from left to right, and then from top to bottom.
The last cell number equals the number of cells of the SpatRaster (see ncell
).
xFromCol, yFromCol, xFromCell, yFromCell: vector of x or y coordinates
xyFromCell: matrix(x,y) with coordinate pairs
colFromX, rowFromY, cellFromXY, cellFromRowCol, rowFromCell, colFromCell: vector of row, column, or cell numbers
rowColFromCell, rowColCombine: matrix of row and column numbers
crds
r <- rast()
xFromCol(r, c(1, 120, 180))
yFromRow(r, 90)
xyFromCell(r, 10000)
xyFromCell(r, c(0, 1, 32581, ncell(r), ncell(r)+1))
cellFromRowCol(r, 5, 5)
cellFromRowCol(r, 1:2, 1:2)
cellFromRowCol(r, 1, 1:3)
# all combinations
cellFromRowColCombine(r, 1:2, 1:2)
colFromX(r, 10)
rowFromY(r, 10)
xy <- cbind(lon=c(10,5), lat=c(15, 88))
cellFromXY(r, xy)
# if no row/col specified all are returned
range(xFromCol(r))
length(yFromRow(r))
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