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From: Steven Lord on 13 Jul 2010 10:02

"Abe Devinko" <abe_cooldude(a)yahoo.com> wrote in message
news:i1hgua$2jm$1(a)fred.mathworks.com...
> Nvm, figured it out!
>
> But now i have another problem :(
>
> Now I have temperature of each of the 40 nodes in T, and wish to plot a
> temperature distribution in the plate per location. How would I go about
> doing that?
>
> I know I will have to store the temperature profile in a 2D matrix, and
> then create a meshgrid according to dimensions of the plate (my delta is
> 0.1 in x and y direction). Here's the diagram of the problem.
> [IMG] http://i25.tinypic.com/2v0zi8m.jpg [/IMG]
>
> I know i have to use meshgrid command to have temp for each node displayed
> at the right location on the plate, but I am not very familiar with how to
> do it.

Then try a simple example.

[x, y] = meshgrid([1 2 3], [4 5 6])

Note the structure of the x and y matrices. Each pair [x(k), y(k)] for k
between 1 and 9 inclusive gives the coordinate of a different point on your
grid. If you were to create a simple surface plot with SURF using the above
data, can you predict what it will look like?

[x, y] = meshgrid(1:3, 4:6)
z = magic(3)
surf(x, y, z)
xlabel('x')
ylabel('y')
zlabel('z')

You may need to rotate the surface around to get a good look at each grid
point.

Now you should be able to use this as a "template" to create a grid that
works for your problem, put your node data in the correct ordering, and
create the surface. There are also other 3D plotting techniques that you
can use -- PLOT3, MESH, etc. may also look good for this data.

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
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