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Just wondering if its possible to extract a line that between two polygons - hopefully the image illustrates this well - I want to extract Line A-B. I'm using MapInfo.

Currently I've used the Intersect function but it results in the entire polygon being selected. I realize there may be a few steps required here.

enter image description here

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  1. Make desired layer editable. Select the polygons A and B. Convert to Polylines.
  2. Click on reshape button showing you the nodes. Put SNAP on and draw a polygon around the line you wanna extract.
  3. Now use the Polyline Split option. Now you may save the splited line elsewhere or keep it there.
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Just to follow up, in the end I create a small buffer of polygon A, converted polygon B to polylines and then selected Polyline B within the Polygon A buffer.

It was a bit crude and labour intensive but good enough for my purposes. Thanks for the responses everyone.

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