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26 lines
848 B
26 lines
848 B
function plotNURBScurve(d,p,Xi,P,w)
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if (size(Xi,2)-p-1~=length(w))
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error("Length of weight vector must be p+1 less than length of knot vector")
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else
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numScatter=10000;
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vals=zeros(numScatter,d);
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for i=1:numScatter
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for di=1:d
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totval=0;
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for j=1:(length(Xi)-p-1)
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[~,Bvals]=ComputeSplineBasis((i-1)/numScatter,p,(Xi/max(Xi)));
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vals(i,di)=vals(i,di)+w(j)*P(di,j)*Bvals(j);
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totval=totval+w(j)*Bvals(j);
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end
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vals(i,di)=vals(i,di)/totval;
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end
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end
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if d==2
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plot(vals(:,1),vals(:,2),'r');
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elseif d==3
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plot3(vals(:,1),vals(:,2),vals(:,3),'r');
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else
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error("Dimension must be 2 or 3")
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end
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end
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end
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