Exercise: Displaying German Geobasis data (GBD)
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(→Load the German base map "Amtliche Karte") |
(→Load the German base map "Amtliche Karte") |
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# Start QGIS 2.4. Right click into the layers window, {{button|text=Add group}} and type ''Amtliche Karte''. Highlight the new goup. | # Start QGIS 2.4. Right click into the layers window, {{button|text=Add group}} and type ''Amtliche Karte''. Highlight the new goup. | ||
# Click the {{button|text=Add raster layer}} button [[Image:QGIS_2.0_addrast.png|20px]] and select all files with the extension ''*.tif'' from the folder''GBData/AK5v''. Press and hold down CTRL, and then click each file with the extension ''*.tif''.{{button|text=OK}}. | # Click the {{button|text=Add raster layer}} button [[Image:QGIS_2.0_addrast.png|20px]] and select all files with the extension ''*.tif'' from the folder''GBData/AK5v''. Press and hold down CTRL, and then click each file with the extension ''*.tif''.{{button|text=OK}}. | ||
| − | # Now you are asked to specify the Coordinate Reference System for the first tif file. This the default behaviour of QGIS 2.4 loading data sets without CRS description. The data were delivered by LGN, Lower Saxony that is fully covered by the UTM-Zone 32 with the horizontal geodetic datum ETRS89. Therefore the EPSG-Code is 25832. In this case the easting value is not prefixed by the UTM zone number and a false easting value of 500km is added. There are several other EPSG-Codes defined by the [ | + | # Now you are asked to specify the Coordinate Reference System for the first tif file. This the default behaviour of QGIS 2.4 loading data sets without CRS description. The data were delivered by LGN, Lower Saxony that is fully covered by the UTM-Zone 32 with the horizontal geodetic datum ETRS89. Therefore the EPSG-Code is 25832. In this case the easting value is not prefixed by the UTM zone number and a false easting value of 500km is added. There are several other EPSG-Codes defined by the [http://www.adv-online.de AdV (Arbeitsgemeinschaft der Vermessungsverwaltungen in Germany)]. Please check the metadata of your data provider to select the right EPSG-code. Type into the text field "Filter": ''25832'' and than click on {{button|text=ETRS89 / UTM zone 32N}} to select the right CRS for the tiles of the "Amtliche Karte" {{button|text=OK}}. Confirm this CRS for all other selected tiles with {{button|text=OK}}. |
Revision as of 11:03, 7 July 2014
Load the German base map "Amtliche Karte"
- Start QGIS 2.4. Right click into the layers window, Add group and type Amtliche Karte. Highlight the new goup.
- Click the Add raster layer button
and select all files with the extension *.tif from the folderGBData/AK5v. Press and hold down CTRL, and then click each file with the extension *.tif.OK.
- Now you are asked to specify the Coordinate Reference System for the first tif file. This the default behaviour of QGIS 2.4 loading data sets without CRS description. The data were delivered by LGN, Lower Saxony that is fully covered by the UTM-Zone 32 with the horizontal geodetic datum ETRS89. Therefore the EPSG-Code is 25832. In this case the easting value is not prefixed by the UTM zone number and a false easting value of 500km is added. There are several other EPSG-Codes defined by the AdV (Arbeitsgemeinschaft der Vermessungsverwaltungen in Germany). Please check the metadata of your data provider to select the right EPSG-code. Type into the text field "Filter": 25832 and than click on ETRS89 / UTM zone 32N to select the right CRS for the tiles of the "Amtliche Karte" OK. Confirm this CRS for all other selected tiles with OK.
