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add drop boundary step

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Ed Chalstrey 2022-04-11 10:43:26 +01:00
parent 688154d055
commit 8d10afd68b
1 changed files with 9 additions and 0 deletions
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etl/README.md
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@ -150,6 +150,15 @@ Load all new building outlines. This step will only add geometries that are not
./load_geometries.sh /path/to/mastermap_dir
```
Drop building outlines outside London boundary.
```bash
cd ~/colouring-london/app/public/geometries
ogr2ogr -t_srs EPSG:3857 -f "ESRI Shapefile" boundary.shp boundary-detailed.geojson
cd ~/colouring-london/etl/
./drop_outside_limit.sh ~/colouring-london/app/public/geometries/boundary.shp
```
Create a virtual environment for python in the `etl` folder of your repository. In the following example we have name the virtual environment *colouringlondon* but it can have any name.
```bash