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4 Geometry standards
GM_BicubicGrid
Fig. 4.19. Bicubic grid (Brozio 2003)
A bicubic grid (dass GM_BicubicGrid) is a gridded surface that uses cubic polynomial splines as the horizontal and vertical curves.
GM_BSplineSurface
Fig. 4.20. B-spline surface (Brozio 2003)