Is there a recommended way of creating a line from the shared border of two polygons. I can create a thin polygon representing the shared borders by: remove spikes and slivers buffering and clipping Result polygons appear correct but, I need lines not polygons. What I really need is the distance of shared border between adjacent polygons.

create line from shared polygon borders

Is there a recommended way of creating a line from the shared border of two polygons.

I can create a thin polygon representing the shared borders by:

Result polygons appear correct but, I need lines not polygons. What I really need is the distance of shared border between adjacent polygons.

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Hi,

There may be several approaches. I would use the Intersector and the Tester after removing spikes and slivers.

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Intersector -> Tester (filter the line if "_overlapes" is greater than 1)

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Takashi

Intersector might be used.

I often find that this creates bad objects if used straight on the polygons..

U might consider:

SpatialRelator "touch" and test for related_canidates>0 to limit to touching polys.

Then coerce the polys to (poly)lines.

Then LineOnLine overlayer (or Intersector).

test for overlaps.