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GDALTINDEX(1) GDAL GDALTINDEX(1) NAME gdaltindex - Builds a shapefile as a raster tileindex. SYNOPSIS gdaltindex [--help] [--help-general] [-overwrite] [-recursive] [-filename_filter <val>]... [-min_pixel_size <val>] [-max_pixel_size <val>] [-f <format>] [-tileindex <field_name>] [-write_absolute_path] [-skip_different_projection] [-t_srs <target_srs>] [-src_srs_name <field_name>] [-src_srs_format {AUTO|WKT|EPSG|PROJ}] [-lyr_name <name>] [-lco <NAME>=<VALUE>]... [-gti_filename <name>] [-tr <xres> <yres>] [-te <xmin> <ymin> <xmax> <ymax>] [-ot <datatype>] [-bandcount <val>] [-nodata <val>[,<val>...]] [-colorinterp <val>[,<val>...]] [-mask] [-mo <KEY>=<VALUE>]... [-fetch_md <gdal_md_name> <fld_name> <fld_type>]... <index_file> <file_or_dir> [<file_or_dir>]... DESCRIPTION This program creates an OGR-supported dataset with a record for each input raster file, an attribute containing the filename, and a polygon geometry outlining the raster. This output is suitable for use with MapServer as a raster tileindex, or as input for the GTI driver. --help Show this help message and exit --help-general Gives a brief usage message for the generic GDAL commandline op- tions and exit. -overwrite New in version 3.9. Overwrite the tile index if it already exists. -recursive New in version 3.9. Whether directories specified in <file_or_dir> should be ex- plored recursively. -filename_filter <val> New in version 3.9. Pattern that the filenames contained in directories pointed by <file_or_dir> should follow. '*' is a wildcard character that matches any number of any characters including none. '?' is a wildcard character that matches a single character. Comparisons are done in a case insensitive way. Several filters may be specified. For example :-filename_filter "*.tif" -filename_filter "*.tiff" -min_pixel_size <val> New in version 3.9. Minimum pixel size in term of geospatial extent per pixel (reso- lution) that a raster should have to be selected. The pixel size is evaluated after reprojection of its extent to the target SRS defined by -t_srs. -max_pixel_size <val> New in version 3.9. Maximum pixel size in term of geospatial extent per pixel (reso- lution) that a raster should have to be selected. The pixel size is evaluated after reprojection of its extent to the target SRS defined by -t_srs. -f <format> The OGR format of the output tile index file. Starting with GDAL 2.3, if not specified, the format is guessed from the extension (previously was ESRI Shapefile). -tileindex <field_name> The output field name to hold the file path/location to the in- dexed rasters. The default tile index field name is location. -write_absolute_path The absolute path to the raster files is stored in the tile in- dex file. By default the raster filenames will be put in the file exactly as they are specified on the command line. -skip_different_projection Only files with same projection as files already inserted in the tileindex will be inserted (unless -t_srs is specified). Default does not check projection and accepts all inputs. -t_srs <target_srs> Geometries of input files will be transformed to the desired target coordinate reference system. Default creates simple rec- tangular polygons in the same coordinate reference system as the input rasters. -src_srs_name <field_name> The name of the field to store the SRS of each tile. This field name can be used as the value of the TILESRS keyword in MapServer -src_srs_format {AUTO|WKT|EPSG|PROJ} The format in which the SRS of each tile must be written. Types can be AUTO, WKT, EPSG, PROJ. This option should be used to- gether with -src_srs_format. -lyr_name <name> Layer name to create/append to in the output tile index file. -lco <NAME>=<VALUE> New in version 3.9. Layer creation option (format specific) <index_file> The name of the output file to create/append to. The default dataset will be created if it doesn't already exist, otherwise it will append to the existing dataset. <file_or_dir> The input GDAL raster files, can be multiple files separated by spaces. Wildcards may also be used. Stores the file locations in the same style as specified here, unless -write_absolute_path option is also used. Starting with GDAL 3.9, this can also be a directory name. -recursive can also be used to recurse down to sub-directories. It is also possible to use the generic option --optfile filelist.txt to specify a list of source files. OPTIONS SPECIFIC TO USE BY THE GDAL GTI DRIVER gdaltindex can be used to generate a tile index suitable for use by the GTI driver. There are two possibilities: • either use directly a vector tile index generated by gdaltindex as the input of the GTI driver • or generate a small XML .gti wrapper file, for easier use with non-file-based formats such as databases, or for vector formats that do not support setting layer metadata items. Formats that support layer metadata are for example GeoPackage (-f GPKG), FlatGeoBuf (-f FlatGeoBuf) or PostGIS (-f PG) Setting -tr and -ot is recommended to avoid the GTI driver to have to deduce them by opening the first tile in the index. If the tiles have nodata or mask band, -nodata and -mask should also be set. In a GTI context, the extent of all tiles referenced in the tile index must be expressed in a single SRS. Consequently, if input tiles may have different SRS, either -t_srs or -skip_different_projection should be specified. -gti_filename <name> New in version 3.9. Filename of the XML Virtual Tile Index file to generate, that can be used as an input for the GDAL GTI / Virtual Raster Tile Index driver. This can be useful when writing the tile index in a vector format that does not support writing layer metadata items. -tr <xres> <yres> New in version 3.9. Target resolution in SRS unit per pixel. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as RESX and RESY layer metadata items for formats that support layer metadata. -te <xmin> <ymin> <xmax> <ymax> New in version 3.9. Target extent in SRS unit. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as MINX, MINY, MAXX and MAXY layer metadata items for formats that support layer metadata. -ot <datatype> New in version 3.9. Data type of the tiles of the tile index: Byte, Int8, UInt16, Int16, UInt32, Int32, UInt64, Int64, Float32, Float64, CInt16, CInt32, CFloat32 or CFloat64 Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as DATA_TYPE layer metadata item for formats that sup- port layer metadata. -bandcount <val> New in version 3.9. Number of bands of the tiles of the tile index. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as BAND_COUNT layer metadata item for formats that sup- port layer metadata. A mix of tiles with N and N+1 bands is allowed, provided that the color interpretation of the (N+1)th band is alpha. The N+1 value must be written as the band count in that situation. If -nodata or -colorinterp are specified and have multiple val- ues, the band count is also inferred from that number. -nodata <val>[,<val>...] New in version 3.9. Nodata value of the tiles of the tile index. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as NODATA layer metadata item for formats that support layer metadata. -colorinterp <val>[,<val>...] New in version 3.9. Color interpretation of of the tiles of the tile index: red, green, blue, alpha, gray, undefined. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as COLOR_INTERPRETATION layer metadata item for formats that support layer metadata. -mask New in version 3.9. Whether tiles in the tile index have a mask band. Written in the XML Virtual Tile Index if -gti_filename is speci- fied, or as MASK_BAND layer metadata item for formats that sup- port layer metadata. -mo <KEY>=<VALUE> New in version 3.9. Write an arbitrary layer metadata item, for formats that support layer metadata. This option may be repeated. NOTE: This option cannot be used together -gti_filename -fetch_md <gdal_md_name> <fld_name> <fld_type> New in version 3.9. Fetch a metadata item from the raster tile and write it as a field in the tile index. <gdal_md_name> should be the name of the raster metadata item. {PIXEL_SIZE} may be used as a special name to indicate the pixel size. <fld_name> should be the name of the field to create in the tile index. <fld_type> should be the name of the type to create. One of String, Integer, Integer64, Real, Date, DateTime This option may be repeated. For example: -fetch_md TIFFTAG_DATETIME creation_date DateTime EXAMPLES • Produce a shapefile (doq_index.shp) with a record for every image that the utility found in the doq folder. Each record holds informa- tion that points to the location of the image and also a bounding rectangle shape showing the bounds of the image: gdaltindex doq_index.shp doq/*.tif • Perform the same command as before, but now we create a GeoPackage instead of a Shapefile. gdaltindex -f GPKG doq_index.gpkg doq/*.tif • The -t_srs option can also be used to transform all input rasters into the same output projection: gdaltindex -t_srs EPSG:4326 -src_srs_name src_srs tile_index_mixed_srs.shp *.tif • Make a tile index from files listed in a text file, with metadata suitable for use by the GDAL GTI / Virtual Raster Tile Index driver. gdaltindex tile_index.gti.gpkg -ot Byte -tr 60 60 -colorinterp Red,Green,Blue --optfile my_list.txt C API This utility is also callable from C with GDALTileIndex(). SEE ALSO Common options for raster programs for other command-line options, and in particular the --optfile switch that can be used to specify a list of input datasets. AUTHOR Frank Warmerdam <warmerdam@pobox.com> COPYRIGHT 1998-2025 Feb 11, 2025 GDALTINDEX(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS SPECIFIC TO USE BY THE GDAL GTI DRIVER | EXAMPLES | C API | SEE ALSO | AUTHOR | COPYRIGHT
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