During or just before WW2, Roy Liming developed analytic techniques for calculating a similar class of blend or fillet. They were taken up in aircraft design, a

During or just before WW2, Roy Liming developed analytic techniques for calculating a similar class of blend or fillet. They were taken up in aircraft design, a field that I can't imagine ever using implicit surfaces! I think it was Edgar Schmued's design for the P-51 Mustang that famously used Liming's work. Liming wrote a book, but it's rare. Some technical discussion towards the end of this page: http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/BOWYER1/c6.htm http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/BOWY...