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Item Geodesic Curves on Patched Polynomial Surfaces(Blackwell Publishing Ltd and the Eurographics Association, 1983) Haw, R J; Munchmeyer, F CA method is described for tracing geodesic curves across patched surfaces. Two techniques are discussed for constructing the curves - an initial value problem and a boundary value problem. Arc lengths are computed, as well as the enclosed area of an arbitrary region on the surface.