[求助]coons曲面的程序
<p>求coons曲面除mathematic之外的程序~只要能画出来就行！！！谢谢了！！！</p><p>我有mathematic的程序~能改编成其它程序的也可以.~谢谢了！！</p><p>\!\(\\_1 := \(\((1 - t)\)\^2\) \((2\ \ t + 1)\)\n<br/> \\_2 := \(t\^2\) \((\(-2\)\ \ t + 3)\)\n<br/> \\_3 := t\ \ \((1 - t)\)\^2\n<br/> \\_4 := \((t - 1)\)\ \ t\^2\<br/> \(\((P_\Q_)\)\) := \(P]\)\<br/> \(\((P_\ \Q_)\)\) := \(P\) + \(Q\) - \(\((P\Q)\)\)[<br/> u, v]\<br/> \(P1\) := \\_1 F + \\_2 <br/> F + \\_3 \((D, u] /. u -> 0)\) + \\_4[<br/> u] \((D, u] /. u -> 1)\)\<br/> \(P2\) := \\_1 F + \\_2 <br/> F + \\_3 \((D, v] /. v -> 0)\) + \\_4[<br/> v] \((D, v] /. v -> 1)\)\<br/> F := 3 x\^3 + y\^2 + 1\<br/> p = \(\((P1\P2)\)\)\<br/> Plot3D, {u, 0, 1}, {v, 0, 1}]\)</p><p>\!\(9\ \((\(-1\) + u)\)\ u\^2 + \((2 + 3\ u\^3)\)\ \((3 - 2\ v)\)\ v\^2 + <br/> 2\ \((\(-1\) + v)\)\ v\^2 + \((1 + 3\ u\^3)\)\ \((1 - v)\)\^2\ \((1 + <br/> 2\ v)\) + \((1 - u)\)\^2\ \((1 + 2\ u)\)\ \((1 + v\^2)\) + \((3 - <br/> 2\ u)\)\ u\^2\ \((4 + v\^2)\) - \((1 - u)\)\^2\ \((1 + <br/> 2\ u)\)\ \((2\ \((3 - 2\ v)\)\ v\^2 + <br/> 2\ \((\(-1\) + v)\)\ v\^2 + \((1 - v)\)\^2\ \((1 + <br/> 2\ v)\))\) - \((3 - <br/> 2\ u)\)\ u\^2\ \((5\ \((3 - 2\ v)\)\ v\^2 + <br/> 2\ \((\(-1\) + v)\)\ v\^2 + <br/> 4\ \((1 - v)\)\^2\ \((1 + 2\ v)\))\) - \((\(-1\) + <br/> u)\)\ u\^2\ \((9\ \((3 - 2\ v)\)\ v\^2 + <br/> 9\ \((1 - v)\)\^2\ \((1 + 2\ v)\))\)\)</p><p></p>
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