Chapter 14. Appendix
Appendix 1.1: Isosurfaces (800 mm and 1200 mm precipitation) visualized on the Digital Elevation Model of Slovakia provided by the sample slovakia3d dataset for GRASS GIS:
![](https://static.packt-cdn.com/products/9781787123328/graphics/c007d1aa-c4f6-422c-9df5-2f0b53979365.png)
Appendix 1.2: The same map we created in Chapter 2, Accessing GIS Data With QGIS, only with a CRS using an Albers Conic projection (EPSG:102008). The map is not North-aligned; therefore, a north arrow was used with the North alignment
parameter set to True north
:
![](https://static.packt-cdn.com/products/9781787123328/graphics/96c9f415-44cf-404a-b0e6-a9e7c850b397.png)
Appendix 1.3: Some of the basic geoalgorithms visualized. a: the two input layers (A and B per GRASS's v.overlay
), b: clip (and), c: union (or), d: difference (nor), e: symmetrical difference (xor):
![](https://static.packt-cdn.com/products/9781787123328/graphics/78a9b5e1-48e5-42c6-8862-44b5033cbfc0.png)
Appendix 1.4: Some of the Coordinate Reference System's PostGIS support. The selected one is the EPSG:4326
CRS used by the book in the early chapters:
![](https://static.packt-cdn.com/products/9781787123328/graphics/541d674e-0510-4ba6-ae61-74ef9d0a8bdb.png)
Appendix 1.5: Settlement data of my study area downloaded from the OpenStreetMap database via the QuickOSM plugin using the Overpass API:
![](https://static.packt-cdn.com/products/9781787123328/graphics/e490375b-05f9-4374-9ee0-e175c09239d0.png)
Appendix 1.6: Linear interpolation of point vi on the line segment...