4D Interpolation scattered Data
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Alexander Schwarzwälder
il 22 Nov 2020
Commentato: Hau Trien
il 23 Mag 2022
Hi,
I have a set of all Coordinate Points (x,y,z) of my irregular shaped geometry and I have a set of data (xc,yc,zc,C) with C = value of interest. I want now to determine for every x,y,z of my geometry the value C.
I tried using but the results are not what i want:
[XXCoor, YYCoor, ZZCoor]=meshgrid(xc, yc, zc)
Cm = griddata(xc,yc,zc,C,XXCoor,YYCoor,ZZCoor);
scatter3(XXCoor(:),YYCoor(:),ZZCoor(:),4,Cm(:),'filled');
for illustration here is one picture with the datapoints x,y,z and one picture of plot what I tried. Like you can see the geometry is a facemask and i want C only on the facemask and not in the inner volume.
Maybe you can help me
best regards , Alex
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Alexander Schwarzwälder
il 23 Nov 2020
Modificato: Alexander Schwarzwälder
il 23 Nov 2020
2 Commenti
Hau Trien
il 23 Mag 2022
I am doing the similar thing and just found your comment here. What are your px, py, pz in this case?
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John D'Errico
il 23 Nov 2020
Sorry, but you cannot use tools like griddata or scatteredInterpolant to interpolate non-single valued relations. It seems all you have are a set of scattered points from some general manifold embedded in R^3.
You probably need to work with the surface, perhaps as generated from a CRUST algorithm.
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