How to plot multiple layers of heatmap as a function of a third variable in the z direction

I wonder how can I plot multiple layers of heatmap and arrange them a function of third vairable in the z direction? like the following image:

Answer 1

[Chunru]

[X,Y,Z] = meshgrid(-2:.2:2);
V = X.*exp(-X.^2-Y.^2-Z.^2);

zslice = [-1.2,0,1.2];   
yslice = [];
xslice = [];
slice(X,Y,Z,V,xslice,yslice,zslice)

[Ali Izadi Rad]

Thanks for your answer, but I'm looking for solution based on the heatmap. the meshgrid is not applicable to my problem.

[Chunru]

So what data do you have?