Setting a threshold for defining 'contiguous' areas

Discussion created by ecotones on May 14, 2012
Latest reply on May 15, 2012 by ecotones
Hi all

I want to create a shapefile (and eventually a grid) of contiguous veg areas (will be using area as the final grid output).

That is easy enough to do, except client wants me to set a threshold that any patch joined by a corridor less than 50m wide should be considered non-contiguous.

Does anyone have a simple method that they have used to cut polygons when they are less than 50m wide (or identify if less than 2 pixels if I grid it)? I need to keep the original polygon outlines and areas.