gdalbuildvrt:tldr:4e075

gdalbuildvrt: Make a virtual mosaic with blue background color (RGB: 0 0 255).

gdalbuildvrt

$ gdalbuildvrt -hidenodata -vrtnodata "${0 0 255}" ${path-to-output-vrt} ${path-to-input_directory-*-tif}

try on your machine

The command you provided is using the GDAL (Geospatial Data Abstraction Library) tool called "gdalbuildvrt" to create a Virtual Raster (VRT) file by merging multiple input GeoTIFF files from a specified directory.

Let's break down the command and its parameters:

gdalbuildvrt: This is the name of the GDAL tool used for creating VRT files.
-hidenodata: This option indicates that nodata values in the input files should be hidden, meaning they won't be considered when computing statistics or resampling.
-vrtnodata "${0 0 255}": This option sets the new nodata value for the output VRT file. In this case, the nodata value is specified as RGB color values "(0 0 255)", which corresponds to the color blue.
${path-to-output-vrt}: This is the path to the output VRT file that will be created. It can be replaced with the desired path and name you want for the VRT file.
${path-to-input_directory-*-tif}: This is a wildcard expression specifying the path to the input directory containing the GeoTIFF files you want to include in the VRT file. The asterisk (*) represents any characters and the "-tif" indicates that the files should have the ".tif" extension.

To execute this command, you need to replace the parameters ${path-to-output-vrt} and ${path-to-input_directory} with the actual paths and filenames specific to your use case.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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