Help with updating slice plot in for loop

I am plotting slices of a block with dimensions x,y,z and using a colour map to represent the temperature of the block, which is described by the 3D-matrix, V, which is the temperature at each data point. The temperature changes over time so I am trying to create an animation using a for loop over time and drawnow.

The problem I have is that I cannot seem to access and change V. I need to implement something to effect of:

if true
[X, Y, Z] = meshgrid([0 x], [0 y], [0 z])
h = slice(X,Y,Z,V,xslice,yslice,zslice)
colorbar

        for n = 1:tmax
            Vnew = (function that determines the temperature at the next time step)
            set(h, V, Vnew)
            drawnow
        end
end

I then get an error that says "There is no V property on the Surface class."

A workaround I have is to re-plot the whole graph at each step but this is quite slow - any help would be hugely appreciated!

Answer 1

[Wick]

You just need to draw a new slice with the new V_new.

if true
[X, Y, Z] = meshgrid([0 x], [0 y], [0 z]);
h = slice(X,Y,Z,V,xslice,yslice,zslice);
colorbar
      for n = 1:tmax
          Vnew = (function that determines the temperature at the next time step)
          h = slice(X,Y,Z,Vnew,xslice,yslice,zslice);
          drawnow
      end
end

[Adalric Leung]

Hi I'm want to acheive the same thing as the previous person where my block dimensions are:

x = -0.5:dx:0.5; % x-vector (cm)

y = -0.5:dy:0.5; % y-vector (cm)

z = -0.5:dz:0.5; % z-vector (cm)

My temperature matrix is given by a 4D matrix (in x, y, z, time) where the first 3 terms provide the temperature at that location, creating a 3D temperature matrix at a sepcific time. I want to plot the block with those dimensions and then represent the changes in temperature as a colour, but I'm unsure how to interpret the code you wrote since I"m still fairly new to MatLab. More specifically, would the "V" be the 3D temperature matrix at a specific point in time? How would I get the x,y, and z slices?

I've included the data for my 4D temperature matrix if it helps.

Thank you for your time.