Geotransform from dimensions and bounding box

gt_from_dim_bbox() computes geotransform coefficients from raster dimensions and a bounding box. The resulting geotransform will always be north-up (no rotation).

Usage

gt_from_dim_bbox(dim, bbox)

Arguments

dim

Integer vector of length two containing the raster dimensions (xsize, ysize) in pixels.

bbox

Numeric vector of length four containing the bounding box (xmin, ymin, xmax, ymax) in georeferenced coordinates.

Value

Numeric vector of length six containing the geotransform coefficients.

See also

GDALRaster$getGeoTransform(), GDALRaster$setGeoTransform(), GDALRaster$setBbox(), bbox_from_dim_gt(), inv_geotransform()

Examples

# 1-degree global grid
gt <- gt_from_dim_bbox(c(360, 180), c(-180, -90, 180, 90))
gt
#> [1] -180    1    0   90    0   -1

# verify round-trip
bbox_from_dim_gt(c(360, 180), gt)
#> [1] -180  -90  180   90