GDAL-RASTER-ASPECT(1) GDAL GDAL-RASTER-ASPECT(1) (NAME) gdal-raster-aspect - (Aspect map) 3.11. (SYNOPSIS) : gdal raster aspect [] : -i, --input [] [ ] -o, --output [] [ ] : -h, --help --json-usage JSON --config = [] -q, --quiet ( ) [ ] : -f, --of, --format, --output-format ( "GDALG" ) [ ] --co, --creation-option = [] [ ] --overwrite [ ] --append --append [ ] --overwrite -b, --band ( 1) (: 1) --convention . CONVENTION=azimuth|trigonometric-angle (: azimuth) --gradient-alg . GRADIENT-ALG=Horn|ZevenbergenThorne (: Horn) --zero-for-flat --no-edges nodata : --if, --input-format [] [ ] --oo, --open-option = [] [ ] (DESCRIPTION) gdal raster aspect GDAL . gdal raster pipeline . (32-bit float) 0 360 (azimuth) . : - 0 - 90 - 180 - 270 ( ). -9999 nodata 0 . nodata 3x3 nodata . nodata 3x3 --no-edges 1 nodata . GDALG ( / ) JSON GDALG . GDALG: GDAL Streamed Algorithm (on-the-fly) (streamed) . (PROGRAM-SPECIFIC OPTIONS) -b, --band ( 1) . --convention azimuth|trigonometric-angle . azimuth : - 0 - 90 - 180 - 270 ( ). trigonometric-angle : - 0 - 90 - 180 - 270 . --gradient-alg Horn|ZevenbergenThorne . Horn . Zevenbergen & Thorne Horn . --no-edges nodata. --zero-for-flat . nodata (-9999) . 0 . (STANDARD OPTIONS) --append . GTiff -- GeoTIFF File Format GPKG -- GeoPackage raster. . --co, --creation-option = . GeoTIFF . . . --formats . Raster drivers . --if, --input-format / () . . . . . . --oo, --open-option = ( ). . -f, --of, --format, --output-format . : gdal --formats | grep raster | grep rw | sort --overwrite . gdal . (RETURN STATUS CODE) 0 ( ). (EXAMPLES) : DTED0. $ gdal raster aspect n43.dt0 out.tif --overwrite (AUTHORS) Even Rouault (COPYRIGHT) 1998-2026 August 18, 2026 GDAL-RASTER-ASPECT(1)