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calculate surface area from xy coordinates (R2017a)

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Grishelda Athallah
Grishelda Athallah on 22 Oct 2020
Answered: KSSV on 22 Oct 2020
hello, so I have this x y coordinates of a foot from 3d scanning (graphical form as shown in the picture), can I use matlab to calculate the surface area based on the division of the area like this (ex: midfoot, heel)? or should i divide the area first and then calculate the area later? thank you in advance

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Answers (1)

KSSV
KSSV on 22 Oct 2020
Let (x,y) be your coordinates....
idx = boundary(x,y) ;
bx = x(idx) ; by = y(idx) ;
A = polyarea(bx,by) ;

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