re detecting double points in bezier curves in article ia b w w oeinck waterland wlink nl ferdinan oeinck waterland wlink nl ferdinand oeinck writes i m looking for any information on detecting and or calculating a double point and or cusp in a bezier curve an algorithm literature reference or mail about this is very appreciated there was a very useful article in one of the issues of transactions on graphics i believe maureen stone was one of the authors sorry not to be more specific i don t have the reference here with me the article actually was more general than this giving a way to decide whether a given cubic bezier curve contains cusps intersection points or whatever wierdness the same treatment is also available in siggraph course notes for the course called math for siggraph or something like that dr memory jbulf kpc com
