gdalcompare – gdalcompare.py compare two images Synopsisgdalcompare.py [-sds] golden_file new_fileDescriptionThe gdalcompare.py script compares two GDAL supported datasets and reports the differences. In addition to reporting differences to the standard out the script will also return the difference count in it’s exit value. Image pixels, and various metadata are checked. There is also a byte by…
gdalbuildvrt – gdalbuildvrt Builds a VRT from a list of datasets. (compiled by default since GDAL 1.6.1) Synopsisgdalbuildvrt [-tileindex field_name] [-resolution {highest|lowest|average|user}] [-te xmin ymin xmax ymax] [-tr xres yres] [-tap] [-separate] [-b band] [-sd subdataset] [-allow_projection_difference] [-q] [-addalpha] [-hidenodata] [-srcnodata "value [value…]"] [-vrtnodata "value [value…]"] [-a_srs srs_def] [-input_file_list my_liste.txt] [-overwrite] output.vrt [gdalfile]*DescriptionThis program builds…
gdaladdo – gdaladdo builds or rebuilds overview images Synopsisgdaladdo [-r {nearest,average,gauss,cubic,average_mp,average_magphase,mode}] [-b band] [-ro] [-clean] [–help-general] filename levelsDescriptionThe gdaladdo utility can be used to build or rebuild overview images for most supported file formats with one of several downsampling algorithms. -r {nearest (default),average,gauss,cubic,average_mp,average_magphase,mode}: Select a resampling algorithm. -b band: (available from GDAL 1.10) Select an…
gdal_utilities – GDAL Utilities The following utility programs are distributed with GDAL. • gdalinfo – report information about a file. • gdal_translate – Copy a raster file, with control of output format. • gdaladdo – Add overviews to a file. • gdalwarp – Warp an image into a new coordinate system. • gdaltindex – Build…
gdal_translate – gdal_translate converts raster data between different formats Synopsisgdal_translate [–help-general] [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}] [-strict] [-of format] [-b band] [-mask band] [-expand {gray|rgb|rgba}] [-outsize xsize[%] ysize[%]] [-unscale] [-scale[_bn] [src_min src_max [dst_min dst_max]]]* [-exponent[_bn] exp_val]* [-srcwin xoff yoff xsize ysize] [-projwin ulx uly lrx lry] [-epo] [-eco] [-a_srs srs_def] [-a_ullr ulx uly lrx lry] [-a_nodata value]…
gdal_sieve – gdal_sieve.py removes small raster polygons Synopsisgdal_sieve.py [-q] [-st threshold] [-4] [-8] [-o name=value] srcfile [-nomask] [-mask filename] [-of format] [dstfile]DescriptionThe gdal_sieve.py script removes raster polygons smaller than a provided threshold size (in pixels) and replaces replaces them with the pixel value of the largest neighbour polygon. The result can be written back to…
gdal_retile – gdal_retile.py gdal_retile.py retiles a set of tiles and/or build tiled pyramid levels Synopsisgdal_retile.py [-v] [-co NAME=VALUE]* [-of out_format] [-ps pixelWidth pixelHeight] [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}]’ [ -tileIndex tileIndexName [-tileIndexField tileIndexFieldName]] [ -csv fileName [-csvDelim delimiter]] [-s_srs srs_def] [-pyramidOnly] [-r {near/bilinear/cubic/cubicspline/lanczos}] -levels numberoflevels [-useDirForEachRow] -targetDir TileDirectory input_files.fiDescriptionThis utility will retile a set of input tile(s)….
gdal_rasterize – gdal_rasterize burns vector geometries into a raster SynopsisUsage: gdal_rasterize [-b band]* [-i] [-at] [-burn value]* | [-a attribute_name] [-3d] [-l layername]* [-where expression] [-sql select_statement] [-of format] [-a_srs srs_def] [-co "NAME=VALUE"]* [-a_nodata value] [-init value]* [-te xmin ymin xmax ymax] [-tr xres yres] [-tap] [-ts width height] [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}] [-q] <src_datasource> <dst_filename>DescriptionThis…
gdal_proximity – gdal_proximity.py produces a raster proximity map Synopsisgdal_proximity.py srcfile dstfile [-srcband n] [-dstband n] [-of format] [-co name=value]* [-ot Byte/Int16/Int32/Float32/etc] [-values n,n,n] [-distunits PIXEL/GEO] [-maxdist n] [-nodata n] [-fixed-buf-val n]DescriptionThe gdal_proximity.py script generates a raster proximity map indicating the distance from the center of each pixel to the center of the nearest pixel identified…
gdal_polygonize – gdal_polygonize.py produces a polygon feature layer from a raster Synopsisgdal_polygonize.py [-8] [-nomask] [-mask filename] raster_file [-b band] [-q] [-f ogr_format] out_file [layer] [fieldname]DescriptionThis utility creates vector polygons for all connected regions of pixels in the raster sharing a common pixel value. Each polygon is created with an attribute indicating the pixel value of…
gdal_merge – gdal_merge.py mosaics a set of images Synopsisgdal_merge.py [-o out_filename] [-of out_format] [-co NAME=VALUE]* [-ps pixelsize_x pixelsize_y] [-tap] [-separate] [-v] [-pct] [-ul_lr ulx uly lrx lry] [-n nodata_value] [-init "value [value…]"] [-ot datatype] [-createonly] input_filesDescriptionThis utility will automatically mosaic a set of images. All the images must be in the same coordinate system and…
gdal_grid – gdal_grid creates regular grid from the scattered data Synopsisgdal_grid [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}] [-of format] [-co "NAME=VALUE"] [-zfield field_name] [-z_increase increase_value] [-z_multiply multiply_value] [-a_srs srs_def] [-spat xmin ymin xmax ymax] [-clipsrc <xmin ymin xmax ymax>|WKT|datasource|spat_extent] [-clipsrcsql sql_statement] [-clipsrclayer layer] [-clipsrcwhere expression] [-l layername]* [-where expression] [-sql select_statement] [-txe xmin xmax] [-tye ymin ymax] [-outsize…
gdal_fillnodata – gdal_fillnodata.py fill raster regions by interpolation from edges Synopsisgdal_fillnodata.py [-q] [-md max_distance] [-si smooth_iterations] [-o name=value] [-b band] srcfile [-nomask] [-mask filename] [-of format] [dstfile]DescriptionThe gdal_fillnodata.py script fills selection regions (usually nodata areas) by interpolating from valid pixels around the edges of the area. Additional details on the algorithm are available in the…
gdal_edit – gdal_edit.py Edit in place various information of an existing GDAL dataset Synopsisgdal_edit [–help-general] [-ro] [-a_srs srs_def] [-a_ullr ulx uly lrx lry] [-tr xres yres] [-unsetgt] [-a_nodata value] [-gcp pixel line easting northing [elevation]]* [-mo "META-TAG=VALUE"]* datasetnameDescriptionThe gdal_edit.py script can be used to allows to edit in place various information of an existing GDAL…
gdal_contour – gdal_contour builds vector contour lines from a raster elevation model SynopsisUsage: gdal_contour [-b <band>] [-a <attribute_name>] [-3d] [-inodata] [-snodata n] [-i <interval>] [-f <formatname>] [[-dsco NAME=VALUE] …] [[-lco NAME=VALUE] …] [-off <offset>] [-fl <level> <level>…] [-nln <outlayername>] <src_filename> <dst_filename> DescriptionThis program generates a vector contour file from the input raster elevation model (DEM)….
gdal_calc – gdal_calc.py Command line raster calculator with numpy syntax Synopsisgdal_calc.py [-A <filename>] [–A_band] [-B…-Z filename] [other_options] Options: -h, –help show this help message and exit –calc=CALC calculation in gdalnumeric syntax using +-/* or any numpy array functions (i.e. logical_and()) -A A input gdal raster file, note you can use any letter A-Z –A_band=A_BAND number…
gdal2tiles – gdal2tiles.py generates directory with TMS tiles, KMLs and simple web viewers Synopsisgdal2tiles.py [-p profile] [-r resampling] [-s srs] [-z zoom] [-e] [-a nodata] [-v] [-h] [-k] [-n] [-u url] [-w webviewer] [-t title] [-c copyright] [-g googlekey] [-b bingkey] input_file [output_dir]DescriptionThis utility generates a directory with small tiles and metadata, following the OSGeo…
gdal-config – gdal-config determines various information about a GDAL installation Synopsisgdal-config [OPTIONS] Options: [–prefix[=DIR]] [–libs] [–cflags] [–version] [–ogr-enabled] [–formats]DescriptionThis utility script (available on Unix systems) can be used to determine various information about a GDAL installation. It is normally just used by configure scripts for applications using GDAL but can be queried by an end…
gda-sql – an SQL console based on Libgda Synopsisgda-sql [–help] [-v] [–version] [-o] [–output-file <filename>] [-C] [–command] [-f] [–commands-file <filename>] [-i] [–interactive] [-l] [–list-dsn] [-L] [–list-providers] [-s] [–http-port <port>] [-t] [–http-token <token phrase>] [–data-files-list] [–data-files-purge <criteria>] [connection’s spec] [connection’s spec…] Descriptiongda-sql is an SQL console based on the Libgda library. It enables you to type…
gda-sql – an SQL console based on Libgda Synopsisgda-sql [–help] [-v] [–version] [-o] [–output-file <filename>] [-C] [–command] [-f] [–commands-file <filename>] [-i] [–interactive] [-l] [–list-dsn] [-L] [–list-providers] [-s] [–http-port <port>] [-t] [–http-token <token phrase>] [–data-files-list] [–data-files-purge <criteria>] [connection’s spec] [connection’s spec…] Descriptiongda-sql is an SQL console based on the Libgda library. It enables you to type…