id summary reporter owner description type status milestone component version severity resolution keywords cc 11711 is_simple and is_valid - Points that are NaN or Infinity flippmoke@… Barend Gehrels A point that has a value in it that is NaN or Infinity is still considered valid and simple by is_simple and is_valid. It would seem to me that this would be neither simple or valid. Bugs closed Boost 1.60.0 geometry Boost 1.58.0 Problem fixed