Basic function to create the window parameters as used by GDAL RasterIO.
Usage
rasterio0(
src_offset,
src_dim,
out_dim = src_dim,
resample = "NearestNeighbour"
)
Arguments
- src_offset
index offset (0-based, top left)
- src_dim
source dimension (XY)
- out_dim
output dimension (XY, optional src_dim will be used if not set)
- resample
resampling algorithm for GDAL see details
Value
numeric vector of values specifying offset, source dimension, output dimension
Details
Resampling algorithm is one of 'NearestNeighbour' (default), 'Average', 'Bilinear', 'Cubic', 'CubicSpline', 'Gauss', 'Lanczos', 'Mode', but
more may be available given the version of GDAL in use.
Examples
rasterio0(c(0L, 0L), src_dim = c(24L, 10L))
#> offset_x offset_y source_nx source_ny out_nx out_ny
#> 0 0 24 10 24 10
#> attr(,"resample")
#> [1] "NearestNeighbour"