Docker gdal-rio

Overview

gdal-rio is a Docker-based tool designed to convert GeoTIFF elevation data into elevation RGB tiles. Built on the osgeo/gdal Docker image, it enables seamless processing of terrain data.

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Installation

To build the Docker image, use the following command:

docker build -t gdal-rio .

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Parameters

Parameter	Description	Example
--s_zip	Specifies the source ZIP file containing GeoTIFF elevation data.	/mnt/d/terrain/nz/lds-canterbury.zip
--s_folder	Specifies the source folder containing GeoTIFF elevation data.	/mnt/d/terrain/andorra
--dest	Defines the destination path for the output RGB tiles.	/mnt/d/terrain/dest
--zoom	Specifies the zoom level range in the format <min>-<max>.	1-4
[--s_epsg]	Optional: Sets the source EPSG code for the data.	27563
[--t_srs]	Optional: Specifies the target spatial reference system (PROJ string).	+proj=latlong +datum=WGS84 +geoidgrids=egm08_25.gtx

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Usage

Generate Elevation RGB Tiles

From a ZIP File:

./tif2tiles.sh --s_zip /mnt/d/terrain/nz/lds-canterbury-lidar.zip --dest /mnt/d/terrain/nz/dest --zoom 1-4

From a Folder:

./tif2tiles.sh --s_folder /mnt/d/terrain/andorra --dest /dest --zoom 1-4 --s_epsg 27563

For High-Resolution Zoom Levels:

./tif2tiles.sh --s_folder ~/usgs/ --dest ~/myterrain/zion --zoom 1-19

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Merge Existing Tiles

To merge RGB tiles from one collection into another, first run the gdal-rio Docker container:

docker run -ti -v /media:/terrain gdal-rio

Then merge tiles:

./mergeFolders /terrain/heights/public/eu10/ /terrain/heights/public/all/

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