Surface Modeling
Several methods are available to model surfaces
– Polygon meshes
• Surface is represented as a set of bounded planar surfaces
– Parametric polynomial curves
• Surface is defined by 3 equation in a parameter, t, one for each principal axis (x, y, z)
– Parametric bivariate polynomial surface patches
• Similar to parametric polynomial curves but this time each equation has two variables
– Quadratic surfaces
• Surface is implicitly defined by an equation f(x, y, z) = 0
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