calculate the area of the surface formed by the points having coordinates [xd, yd]??

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amal Mbarki
amal Mbarki on 2 May 2014
Commented: José-Luis on 8 May 2014
first,i used 'polybool' to determine the overlap between plusieurs ellipses
i=1;
while i<n
for j=i+1:n
t=(0:pi/20:2*pi);
x1=G(i,3)*cos(t);
y1=G(i,4)*sin(t);
x2=G(j,3)*cos(t);
y2=G(j,4)*sin(t);
[xd, yd] = polybool('intesection', x1, y1, x2, y2,'vector');
end
i=i+1;
end
now i want to calculate the area of the surface formed by the points having coordinates [xd, yd],how can i do it??

Accepted Answer

Friedrich
Friedrich on 2 May 2014
Edited: Friedrich on 2 May 2014
Hi,
you could do a Delauny Triangulation using the delaunay function and then calculate and sum up the area of each triangle. This should work as long your surface is one connected area. Or in the case the area of the convex hull is okay for your use polyarea.
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