Abstract
The setup of the Tangible Landscape system consists of four primary components: (a) a physical model that can be modified by a user, (b) a 3D scanner, (c) a projector, and (d) a computer installed with GRASS GIS for geospatial modeling and additional software that connects all the components together. The physical model, placed on a table, is scanned by the 3D scanner mounted above. The scan is then imported into GRASS GIS, where a DEM is created. The DEM is then used to compute selected geospatial analyses. The resulting image or animation is projected directly onto the modified physical model so that the results are put into the context of the modifications to the model.
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Notes
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All further Python code snippets assume the library is already imported to avoid code duplication.
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GRASS GIS Python Scripting Library documentation: http://grass.osgeo.org/grass70/manuals/libpython/script_intro.html
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Petrasova, A., Harmon, B., Petras, V., Mitasova, H. (2015). System Configuration. In: Tangible Modeling with Open Source GIS. Springer, Cham. https://doi.org/10.1007/978-3-319-25775-4_2
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DOI: https://doi.org/10.1007/978-3-319-25775-4_2
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