Native interface to gdal utils
character; one of info, warp, rasterize, translate, vectortranslate (for ogr2ogr), buildvrt, demprocessing, nearblack, grid, mdiminfo and mdimtranslate (the last two requiring GDAL 3.1)
character; name of input layer(s); for warp, buidvrt or mdimtranslate this can be more than one
character; name of output layer
character; options for the utility
logical; if TRUE, suppress printing the output for info and mdiminfo, and suppress printing progress
character; processing options for demprocessing
character; name of color file for demprocessing (mandatory if processing="color-relief")
info returns a character vector with the raster metadata; all other utils return (invisibly) a logical indicating success (i.e., TRUE); in case of failure, an error is raised.
if (sf_extSoftVersion()["GDAL"] > "2.1.0") {
# info utils can be used to list information about about a raster
# dataset. More info: https://gdal.org/programs/gdalinfo.html
in_file <- system.file("tif/geomatrix.tif", package = "sf")
gdal_utils("info", in_file, options = c("-mm", "-proj4"))
# vectortranslate utils can be used to convert simple features data between
# file formats. More info: https://gdal.org/programs/ogr2ogr.html
in_file <- system.file("shape/storms_xyz.shp", package="sf")
out_file <- paste0(tempfile(), ".gpkg")
gdal_utils(
util = "vectortranslate",
source = in_file,
destination = out_file, # output format must be specified for GDAL < 2.3
options = c("-f", "GPKG")
)
# The parameters can be specified as c("name") or c("name", "value"). The
# vectortranslate utils can perform also various operations during the
# conversion process. For example we can reproject the features during the
# translation.
gdal_utils(
util = "vectortranslate",
source = in_file,
destination = out_file,
options = c(
"-f", "GPKG", # output file format for GDAL < 2.3
"-s_srs", "EPSG:4326", # input file SRS
"-t_srs", "EPSG:2264", # output file SRS
"-overwrite"
)
)
st_read(out_file)
# The parameter s_srs had to be specified because, in this case, the in_file
# has no associated SRS.
st_read(in_file)
}
#> Driver: GTiff/GeoTIFF
#> Files: /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/Rtmp3z3Bvs/temp_libpath1379263bfad27/sf/tif/geomatrix.tif
#> Size is 20, 20
#> Coordinate System is:
#> PROJCRS["WGS 84 / UTM zone 11N",
#> BASEGEOGCRS["WGS 84",
#> DATUM["World Geodetic System 1984",
#> ELLIPSOID["WGS 84",6378137,298.257223563,
#> LENGTHUNIT["metre",1]]],
#> PRIMEM["Greenwich",0,
#> ANGLEUNIT["degree",0.0174532925199433]],
#> ID["EPSG",4326]],
#> CONVERSION["UTM zone 11N",
#> METHOD["Transverse Mercator",
#> ID["EPSG",9807]],
#> PARAMETER["Latitude of natural origin",0,
#> ANGLEUNIT["degree",0.0174532925199433],
#> ID["EPSG",8801]],
#> PARAMETER["Longitude of natural origin",-117,
#> ANGLEUNIT["degree",0.0174532925199433],
#> ID["EPSG",8802]],
#> PARAMETER["Scale factor at natural origin",0.9996,
#> SCALEUNIT["unity",1],
#> ID["EPSG",8805]],
#> PARAMETER["False easting",500000,
#> LENGTHUNIT["metre",1],
#> ID["EPSG",8806]],
#> PARAMETER["False northing",0,
#> LENGTHUNIT["metre",1],
#> ID["EPSG",8807]]],
#> CS[Cartesian,2],
#> AXIS["(E)",east,
#> ORDER[1],
#> LENGTHUNIT["metre",1]],
#> AXIS["(N)",north,
#> ORDER[2],
#> LENGTHUNIT["metre",1]],
#> USAGE[
#> SCOPE["Engineering survey, topographic mapping."],
#> AREA["Between 120°W and 114°W, northern hemisphere between equator and 84°N, onshore and offshore. Canada - Alberta; British Columbia (BC); Northwest Territories (NWT); Nunavut. Mexico. United States (USA)."],
#> BBOX[0,-120,84,-114]],
#> ID["EPSG",32611]]
#> Data axis to CRS axis mapping: 1,2
#> PROJ.4 string is:
#> '+proj=utm +zone=11 +datum=WGS84 +units=m +no_defs'
#> GeoTransform =
#> 1841001.75, 1.5, -5
#> 1144003.25, -5, -1.5
#> Metadata:
#> AREA_OR_POINT=Point
#> Image Structure Metadata:
#> INTERLEAVE=BAND
#> Corner Coordinates:
#> Upper Left ( 1841001.750, 1144003.250) (104d50'47.45"W, 10d 7'13.55"N)
#> Lower Left ( 1840901.750, 1143973.250) (104d50'50.69"W, 10d 7'12.72"N)
#> Upper Right ( 1841031.750, 1143903.250) (104d50'46.60"W, 10d 7'10.33"N)
#> Lower Right ( 1840931.750, 1143873.250) (104d50'49.85"W, 10d 7' 9.50"N)
#> Center ( 1840966.750, 1143938.250) (104d50'48.65"W, 10d 7'11.53"N)
#> Band 1 Block=20x20 Type=Byte, ColorInterp=Gray
#> Computed Min/Max=74.000,255.000
#> Reading layer `storms_xyz' from data source
#> `/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/RtmpPRYQkm/file176ce17ae727a.gpkg'
#> using driver `GPKG'
#> Simple feature collection with 71 features and 0 fields
#> Geometry type: LINESTRING
#> Dimension: XYZ
#> Bounding box: xmin: -5785269 ymin: -8509454 xmax: 25097160 ymax: 15846560
#> z_range: zmin: 924 zmax: 1017
#> Projected CRS: NAD83 / North Carolina (ftUS)
#> Reading layer `storms_xyz' from data source
#> `/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/Rtmp3z3Bvs/temp_libpath1379263bfad27/sf/shape/storms_xyz.shp'
#> using driver `ESRI Shapefile'
#> Simple feature collection with 71 features and 0 fields
#> Geometry type: LINESTRING
#> Dimension: XYZ
#> Bounding box: xmin: -102.2 ymin: 8.3 xmax: 0 ymax: 59.5
#> z_range: zmin: 924 zmax: 1017
#> CRS: NA