Interpolation using interp3 with 2 arrays and one vector

Pragya Srivastava

2016 1 25

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Hi, I want to interpolate from given input Vin(X,Y,t) to Vout(X,Y,t'), where X,Y are each two dimensional arrays and t is a vector. Using the interp3 command as

Vout(X,Y,i)=interp3(X,Y,t,Vin(:,:,1:end),X,Y,t'(i))

results in error "Grid coordinate arrays have inconsistent size". Can you suggest a way around this ?

Thanks !!

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Kelly Kearney 2016-1-25

Do you want to do true 3D interpolation, or 1D interpolation over the third dimension? In other words, should the value at (x1,y1,t) depend on all 3-D neighbors, or just (x1,y1,tprev) and (x1,y1,tnext)?