A method for computing isovalue or contour surfaces of a trivariate function is discussed. The input data are values of the trivariate function, F/sub ijk/, at the cuberille grid points (x/sub i/, y/sub j/, z/sub k/), and the output of a collection of triangles representing the surface consisting of all points where F(x,y,z) is a constant value. The method is a modification that is intended to correct a problem with a previous method.
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机译：讨论了一种计算三变量函数的等值或轮廓曲面的方法。输入数据是在立方网格点（x / sub i /，y / sub j /，z / sub k /）的三变量函数F / sub ijk /的值，以及表示由F（x，y，z）为常数的所有点组成的表面。该方法是一种修改，旨在解决以前方法的问题。
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