Exercise: Estimating forest area of county Göttingen based on digital landscape model (DLM) and administrative boundaries 1: 250 000
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© GeoBasis-DE / BKG 2016 | © GeoBasis-DE / BKG 2016 | ||
# Click {{button|text=Add WFS Layer}} and Server connections {{button|text=New}}. Fill the connection details. Name: ''WFS DLM250 BKG'', URL: ''http://sg.geodatenzentrum.de/wms_dlm250''. {{button|text=Connect}}. Mark the row with TITLE = OBJART_43002_f01 (Forest). {{button|text=Add}}. Forest area objects of Germany are downloaded as vector polygons. Click {{button|text=Close}} and the polygons are displayed in the viewer. | # Click {{button|text=Add WFS Layer}} and Server connections {{button|text=New}}. Fill the connection details. Name: ''WFS DLM250 BKG'', URL: ''http://sg.geodatenzentrum.de/wms_dlm250''. {{button|text=Connect}}. Mark the row with TITLE = OBJART_43002_f01 (Forest). {{button|text=Add}}. Forest area objects of Germany are downloaded as vector polygons. Click {{button|text=Close}} and the polygons are displayed in the viewer. | ||
| − | # Click {{button|text=Add WFS Layer}} and Server connections {{button|text=New}}. Fill the connection details. Name: ''WFS VG250 BKG'', URL: ''http://sg.geodatenzentrum.de/wfs_vg250''. {{button|text=Connect}}. Mark the row with TITLE = Kreis. {{button|text=Add}}. All county boundaries of Germany | + | # Click {{button|text=Add WFS Layer}} and Server connections {{button|text=New}}. Fill the connection details. Name: ''WFS VG250 BKG'', URL: ''http://sg.geodatenzentrum.de/wfs_vg250''. {{button|text=Connect}}. Mark the row with TITLE = Kreis. {{button|text=Add}}. All county boundaries of Germany are downloaded as vector polygons. Click {{button|text=Close}} and the polygons are displayed in the viewer. Open the attribute table of layer ''Kreis''. {{button|text=Select features using expression}}. Type the epression "GEN" = 'Göttingen'. Click {{button|text=Move selection to top}}. The county Göttingen is now selected. Mark layer Kreis in the layer panel. {{button|text=Save as ..}} |
| − | are downloaded as vector polygons. Click {{button|text=Close}} and the polygons are displayed in the viewer. Open the attribute table of layer ''Kreis''. {{button|text=Select features using expression}}. Type the epression "GEN" = 'Göttingen'. Click {{button|text=Move selection to top}}. The county Göttingen is now selected. Mark layer Kreis in the layer panel. {{button|text=Save as ..}} | + | |
== Calculating forest area of County Göttingen == | == Calculating forest area of County Göttingen == | ||
Revision as of 13:58, 4 July 2016
Since 2013 the federal government ogf Germany has published the ordinance to determine the conditions for use and provision of spatial data. A couple of spatial data products are provided free of for download or online use by the Bundesamt für Kartographie und Geodäsie in Frankfurt (BKG). http://www.geodatenzentrum.de/geodaten/gdz_rahmen.gdz_div?gdz_spr=deu&gdz_akt_zeile=5&gdz_anz_zeile=0&gdz_unt_zeile=0&gdz_user_id=0
Use of digital topographic map 1:250 000 as web map service (WMS)
Digital topographische maps describe topographical objects of the landscape and relief of the earth's surface in raster format.
- Add an open WMS data sets. Click Add WMS Layer. Layers --> New. Fill the connection details. Name: WMS BKG, URL: http://sg.geodatenzentrum.de/wms_dtk250. Connect. Select Layer ID = 01, Name = dtk250. The topographic map 1:250 000 of Germany is loaded. Zoom out to a larger view extent.
Use of digital landscape model and administrative boundaries 1:250 000 as web feature service (WFS)
Source: http://www.bkg.bund.de © GeoBasis-DE / BKG 2016
- Click Add WFS Layer and Server connections New. Fill the connection details. Name: WFS DLM250 BKG, URL: http://sg.geodatenzentrum.de/wms_dlm250. Connect. Mark the row with TITLE = OBJART_43002_f01 (Forest). Add. Forest area objects of Germany are downloaded as vector polygons. Click Close and the polygons are displayed in the viewer.
- Click Add WFS Layer and Server connections New. Fill the connection details. Name: WFS VG250 BKG, URL: http://sg.geodatenzentrum.de/wfs_vg250. Connect. Mark the row with TITLE = Kreis. Add. All county boundaries of Germany are downloaded as vector polygons. Click Close and the polygons are displayed in the viewer. Open the attribute table of layer Kreis. Select features using expression. Type the epression "GEN" = 'Göttingen'. Click Move selection to top. The county Göttingen is now selected. Mark layer Kreis in the layer panel. Save as ..
