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I wish to calculate the centroids of a large number of building polygons in OS MasterMap using MapInfo. MapInfo calculates the centroid using the object's Minimum Bounding Rectangle. Theoretically could a building's shape mean the centroid was outwith the building's footprint?

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According to this post the centroid is initially forced to be inside of the polygon.

https://groups.google.com/forum/#!topic/mapinfo-l/cb5x5g-50mo

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