1.8. Search for Building Footprint

  1. Search for building footprint at OpenDataPhilly. Search for “building footprint”. This is very similar to Task-2b (Obtain Philadelphia Land Use). Download the shapefile. Unzip the file.



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  2. Import the shapefile into QGIS (Import Shapefile into QGIS). Reproject the Shapefile into the right CRS (Reprojecting Files). Choose the Footprint of interest (“Land Use Map, Steps 1-5).



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  3. If we open the attribute table, we can see that we have the “BASE_ELEVA”, “APPROX_HGT” AND “MAX HGT”. With this three attributes this is enought to extrude the building footprint and create a 3D model of the area. However, most of the time you will not get such good quality data.



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