I have a file of 100+ polygons and need to find lines that exist outside of the polygon based on a join condition that links the line to the polygon.
ie find me the lines in file x that exist outside of a polygon where line.shape not in/not entirely within polygon.shape and line.auth = polygon.auth
I'm a new FME user - I've experimented with both the spatial relator and the spatial filter. I don't know if I'm just using them incorrectly! any help appreciated!
Thanks
Baz
Both the SpatialRelator or the SpatialFilter should work. You should set the Group By to the "auth" attribute (which will need to have the exact same name on both the lines and the polygons).
With the SpatialFilter, try:
Another option is the Clipper, again grouping on the join attribute.
The lines will be Clippee, the polygons Clipper.
The Outside port will contain all lines that are completely or partially outside (these will have the _clipped attribute to filter them).
Could you tell us what is not working then? Or what you get in your translation?
The SpatialRelator or SpatialFilter should work indeed, but more specific information could lead to more helpful answers!