Hi Jacopo,
I understand that you want to a method to interpolate the 3D data to find the value of another point which is velocity in your case.
To do this, you can use the “scatteredInterpolant” function, this will return the interpolant function say “F” for the given data set, using which you can evaluate “F” at a set of query points, such as “(xq,yq,zq)” in 3D, to produce interpolated values “vq = F(xq,yq,zq)”.
You can refer an example below for better understanding:
% Generate some sample data
x = rand(100,1)*10;
y = rand(100,1)*10;
z = rand(100,1)*10;
v = rand(100,1);
% disp(x)
% Define the point of interest
xq = 5;
yq = 5;
zq = 5;
% Interpolate the data using scatteredInterpolant
F = scatteredInterpolant(x,y,z,v);
% Evaluate the interpolated function at the point of interest
vq = F(xq,yq,zq);
disp(vq)
For more information on the “scatteredInterpolant” you can refer the below link:
I hope this helps!
Regards,
Ayush
