Spatial subset

Interactice box selection

1. Click the Add raster layer and select the file C:/OSGeo4W64/geodata/raster/s2/Subset_S2A_MSIL2A_20170619T.tif.
2. After clicking Open, the raster layer appears on the QGIS canvas.
3. Raster --> Extraction ---> Clipper...
4. Input file (raster): Choose a loaded file name fron the drop down list or click Select to browse to a file.
5. Output file: click Select to choose a new file name for the subset image.
6. The clipping mode is now already active. Hold a left click on the map canvas dragging a box of your region of interest.
7. Adjust the extent coordinates in the text file rounding the coordinates of 1 (upper left corner) x, y and 2 (lower right corner) x, y.

1. Click OK.

Vector Polygon

1. Load the vector file C:\OSGeo4W64\var\geodata\vector\Landkreis_Goe_neu_utm32.shp. This is the actual boundary of the county Göttingen. We create a new vecto file with the boundary of the municipality Göttingen.
2. Right click on Layer name in the Layers PanelProperties --> General. Change the Data source encoding from System to UTF-8. Click UTF-8.
3. Right click on Layer name in the Layers Panel and open the Attribute table.
4. Click and select by the expression: "NAME_4" ='Göttingen'. Select.

1. Right click on Layer name in the Layers Panel Save as...