How to make Linear Interpolation

2013 8 23
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I have a room 12x12m². I placed data loggers in every 3 meters in order to measure temperature. Here the matrix I prepared:
How can I fill the zero values with linear interpolation to simulate room's representational view in surf plot?

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Shashank Prasanna
Shashank Prasanna 2013-8-23

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I am assuming you are using a version of MATLAB atleast after R2012a. If not you can repeat the similar exercize using meshgrid and interp2.
% Actual Data
Z = [24.6,24.4,24;24.7,24.3,24;24.6,24.1,23.9]
[X,Y] = ndgrid([3,6,9],[3,6,9]);
% Interpolation
F = griddedInterpolant(X,Y,Z,'linear');
[Xnew,Ynew] = ndgrid(1:11,1:11);
Znew = F(Xnew,Ynew)
surf(Xnew,Ynew,Znew)

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Flashbond
Flashbond 2013-8-23
编辑：Flashbond 2013-8-23
Thanks! One more thing; Also I have a Z2 humidity.
Zh = [40.8,41.1,41.4;40.7,41,41.6;40.7,41.1,41.3]
Is it possible to make humidity is the height of suface plot and temperature are the colors? Or Should it be another question in the forum?

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