countourc function

[Shai Ayal]

Hi All,

Does anybody know of a counturc compatible function available under the 
GPL ?. I would settle for something close which can be easily adapted.

This function should take a matrix and an isoline value as input and 
return a list of vertexes for the isoline(contour) corresponding to the 
isovalue.

I have looked in the contour implementation in several GPL'd programs 
such as epstk and euler, but the do not consider the isoline in it's 
entirety, rather they plot each little segment of  the line independently.

        Shai

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