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x=[10 20 30 40];
y=[5 15 25 35];
z=[10 20 30 40];
v=[1000 800 2000 1500];
xi = [1 6 15 0];
yi = [19 40 33 49];
zi = [10 1 22 13];
Fi=interp3(x,y,z,v,xi,yi,zi,'linear',0)
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The grid vectors do not define a grid of points that match the given values.

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        F = griddedInterpolant({X, Y, Z}, V, method,extrap);
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[X,Y,Z,V] = flow(10);
figure
slice(X,Y,Z,V,[6 9],2,0);
shading flat
[Xq,Yq,Zq] = meshgrid(.1:.25:10,-3:.25:3,-3:.25:3);
Vq = interp3(X,Y,Z,V,Xq,Yq,Zq);
figure
slice(Xq,Yq,Zq,Vq,[6 9],2,0);
shading flat

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figure
slice(X,Y,Z,V,,2,0);
shading flat
= meshgrid(.1:.25:10,-3:.25:3,-3:.25:3);
Vq = interp3(X,Y,Z,V,Xq,Yq,Zq);
figure
slice ...

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x=[10 20 30 40];%Ï൱ÓÚÒÔ10Ϊ²½½ø£¬È¡4¸öµã
y=[5 15 25 35];
z=[10 23 33 41;07 17 26 37;10 20 30 40;08 18 31 43;]; %z±ØÐëΪ4x4¾ØÕó
%v=[10 23 33 41;07 17 26 37;10 20 30 40;08 18 31 43;];
surf(x,y,z)
title('Original data Plot');
xlabel('X'), ylabel('Y'), zlabel('Z'),
colormap; colorbar;axis([0 50 0 40 0 50]);

xi = [1:1:40];%ÒÔ1Ϊ²½½ø£¬È¡µã
yi = [5:1:35];
[x2,y2]=meshgrid(xi,yi);%²Î¿¼help°¸Àý²úÉúеÄxyz
t11=interp2(x,y,z,x2,y2,'cubic');
figure(2)
surf(xi,yi,t11)
title('After Fit data Plot');
xlabel('X'), ylabel('Y'), zlabel('Z'),
colormap, colorbar;axis([0 50 0 40 0 50]);

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7Â¥: Originally posted by qwerty200696 at 2016-01-28 00:45:42
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y=;
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surf(x,y,z)
title('Original  ...

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