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Octave-Forge - Extra packages for GNU Octave |
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Function File: cm = masscenter (pp)
Center of mass of a plane shape.
The shape is defined with piecewise smooth polynomials. pp is a cell where each elements is a 2-by-(poly_degree+1) matrix containing
px(i,:) = pp{i}(1,:)andpy(i,:) = pp{i}(2,:).See also: inertiamoment
The following code
% non-convex bezier shape
weirdhearth ={[34.81947,-63.60585 41.35964,1.61093; ...
73.22086,4.95439 7.1796,-34.7948]; ...
[30.26599,-50.0316 77.6279,8.52058; ...
-18.66371,58.02699 -168.20415,52.74819]};
CoM = masscenter (weirdhearth)
Produces the following output
warning: Shape has negative area. Assuming this is due to a clockwise parametrization of the boundary CoM = 19.170 38.767