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wiki:gdal [2018/06/02 10:44] (current)
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 +====== GDAL and OGR ======
 +[[http://​www.gdal.org/​| GDAL]] is a command-line library that can be used for raster data pre-processing.\\
 +[[http://​www.gdal.org/​ogr/​| OGR]] is a command-line library that can be used for vector data.\\
 +Why use gdal and ogr?\\
 +  * Several [[ http://​www.gdal.org/​gdal_utilities.html | raster ]] and [[http://​www.gdal.org/​ogr_utilities.html |  vector ]]  applications are already available in your shell.
 +  * They support all the different [[http://​www.gdal.org/​formats_list.html | raster]] and [[ vhttp://​www.gdal.org/​ogr/​ogr_formats.html | vector]] formats. ​
 +  * Command line.
 +  * Can be combined in a bash language and therefore integrate in a script.
 +  * You can create your geo-tools.
 +  * NO FILE SIZE LIMITATION ​
 +  * Very fast
 +  * They are the basic libraries that GRASS use to import and export data.
 +\\
 +
 +You can access to gdal/ogr command by typing gdal or ogr and then press Tab twice.
 +A list of all the gdal commands will be listed.\\
 +\\
 +The projection types are defined by the EPSG codes. They are used to define and change a projection. ​
 +A list of the EPSG codes can be found [[ http://​spatialreference.org/​ref/​epsg/​ | here ]]
 +\\
 +===== GDAL and OGR Tutorials =====
 +  * [[gdalsintax|The GDAL and OGR syntax]]
 +===== GDAL and OGR exercises =====
 +These exercises use the scripts and data stored in ~/​ost4sem/​exercise/​basic_adv_gdalogr \\ 
 +
 +You can open the scripts by kate and copy/paste the lines to the terminal.\\ ​
 +
 +You can can also interact with the shell using other commands and inserting comments in the editor.\\
 +You can run it directly by:
 +<code bash> ​
 +sh file_name.sh ​
 +</​code> ​
 +  * [[gdalpktools_kenya | Use GDAL/OGR and PKTOOLS for raster/​vector operations]]
 +  * [[gdalpktoolssetting | Use GDAL/OGR and PKTOOLS for raster/​vector operations]] (setting)
 +  * [[gdalbasic | Basic GDAL scripts]]
 +  * [[ogrbasic | Basic OGR scripts]]
 +  * [[langintergartiongr | Languages/​Software data integration:​ GDAL and OFT-TOOLS ]]
 +  * [[gdalbasic_yale | Basic GDAL and OGR scripts for species distribution ]]
 +  * [[gdaladvance | Advance GDAL and OGR scripts]]
 +  * [[gdalbasic_kenya | Basic GDAL and OGR for Kenya ]]
 +  * [[gdalpktools_kenya | GDAL/OGR and PKTOOLS]]
 +  * [[rsapplication yale | RS application for Yale ]]
 +  * [[MODISwget | Download MODIS Land Surface Temperature (*.hdf) from Nasa ftp]]
 +
 +===== GDAL and OGR links  =====
 +
 +  * [[ http://​www.gdal.org/​| GDAL homepage ]]
 +  * [[ http://​www.gdal.org/​ogr/​ | OGR homepage ]]
 +  * [[ http://​spatialreference.org | Spatial reference repertory]] EPSG, ESRI, IAU2000, spatialreference.org
 +  * [[ http://​epsg-registry.org/​| EPSG Geodetic Parameter Registry]]
 +  * [[ https://​github.com/​nvkelso/​geo-how-to/​wiki/​OGR-to-reproject,​-modify-Shapefiles | Examples ]]
 +
  
wiki/gdal.txt ยท Last modified: 2018/06/02 10:44 (external edit)