Using elliptic PDEs described in the previous chapter, especially using the Biharmonic equation, one can create the shape of an initial surface. This can be carried out through the interactive specification of curves which can be taken as the boundary conditions for the chosen PDE. Once this is done, it may be necessary to further manipulate the geometry in order to improve the shape. Hence, it is desirable to have as much control as possible over the shape of the surface once it has been defined.
KeywordsParameter Space Discrete Fourier Transform Boundary Curve Surface Patch Curve Segment
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