I have a collection of building polygons with height attributes. I hoped to convert these to multipatch, union them to aggregate parts of buildings together, and then calculate surface area and volume. I am able to create the multipatch, but for some reason many of the buildings are unclosed, leaving me unable to union or add z information. Why would 3d analyst create unclosed features from an extruded polygon? Is there any way to close the features?
Thanks,
Patrick Sewell