How sampling 3d scattered points

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Lorenzo Bennati
Lorenzo Bennati 2020-12-3
评论： Ameer Hamza 2020-12-3
Hi everyone,
I have a 3D matrix that represents the coordinates of 108 points in the 3d Cartesian space. So, for every row, i have the coordinates of a point. These points represent the centerline of a leaflet of the mitral valve.
My goal is to sample this points in order to pass from 108 points to 32 points keeping the same shape of the centerline of the leaflet of the mitral valve of the 108 points.
How can i do this?
Thanks in advance for the help.
I have attached also a figure that represents the position of the points.
Lorenzo

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Ameer Hamza
Ameer Hamza 2020-12-3
One option is to use interp1()
X = rand(108, 3);
t = linspace(0,1,size(X,1));
t_new = linspace(0,1,32);
X_new = interp1(t, X, t_new);
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