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Surface area of a Contour

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bobby
bobby 2012-4-15
If a helpful soul can answer some questions regarding this script, http://www.mathworks.com/matlabcentral/fileexchange/6905-contour-area-calculation
I tried the script with some regular geometry cylindrical pillars, the surface area was not coming out to be correct. So let's suppose we have this contour: http://i.imgur.com/89KoR.png. 1) If i run the script such that the contour level entered is minimum value of the matrix, will it give me the surface area of the whole contour. 2) If i cut this contour at a given value, will it fill the cut-off portion with some flat plain areas? 3) Can the z-pixel calibration be defined?
The troubles of being a novice.
Also, does anybody else have an idea of calculating surface area of an irregular shape?

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