RasterWriter#
Write Grid to Ascii Raster file (*.asc).
The header data includes the following keywords and values:
ncols : number of columns in the data set.
nrows : number of rows in the data set.
xllcenter or xllcorner – x-coordinate of the center or lower-left corner of he lower-left cell.
yllcenter or yllcorner – y-coordinate of the center or lower-left corner of the lower-left cell.
cellsize – cell size for the data set.
nodata_value – value in the file assigned to cells whose value is unknown. This keyword and value is optional. The nodata_value defaults to -9999.