A method for trimming surfaces generated as solutions to Partial Differential Equationsud(PDEs) is presented. The work we present here utilises the 2D parameterudspace on which the trim curves are defined whose projection on the parametricallyudrepresented PDE surface is then trimmed out. To do this we define the trim curvesudto be a set of boundary conditions which enable us to solve a low order ellipticudPDE on the parameter space. The chosen elliptic PDE is solved analytically, evenudin the case of a very general complex trim, allowing the design process to be carriedudout interactively in real time. To demonstrate the capability for this technique weuddiscuss a series of examples where trimmed PDE surfaces may be applicable.
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