# Is it possible to have 3 or more variable inputs for a 3D contour plot in GUI?

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Bastion on 11 Sep 2011
Commented: Walter Roberson on 11 Jun 2015
I'm trying to make a 3D contour plot with an equation that has X,Y,Z and t as a variable input by the user in the GUI. Is it possible to achieve?
Basma M on 10 Jun 2015
hi Bastion, i was wondering if you ever knew the correct code for this problem. i am very much interested in the solution you came up with cuz i need to solve the same equation but having difficulties doing so. I would really appreciate your feedback on this, it is somewhat urgent and i've already spent too much time and effort trying to work it out. THANKS

Walter Roberson on 11 Sep 2011
In what manner were you hoping to display your 4 dimensional data?
Bastion on 11 Sep 2011
On a axes plot in matlab GUI. I wish to make a 3D contour

Bastion on 11 Sep 2011
Just to clarify:
I want to make a 3D CONTOUR plot in Matlab GUI. I have an equation for Concentration (C) which is a function of (X,Y,Z,t). I'm making t as a constant. But I want the user to input the data for values of X, Y and Z.
In the Matlab help files I got this for 3D contour:
[X,Y] = meshgrid([-2:.25:2]);
Z = X.*exp(-X.^2-Y.^2);
contour3(X,Y,Z,30)
This will only allow me to input the variables for X and Y and get Z as an output. So I'm wondering if it is possible for me to let X, Y and Z be inputs and C as my output.
Bastion on 12 Sep 2011
yeah I'm looking at isosurface but can't seem to place equation, I'll check it out

Dmitry Borovoy on 12 Sep 2011
If you really need to use function just create your own shell-function.
function MyContour3(X,Y,Z,t)
contour3(X,Y,Z)
end
Bastion on 22 Sep 2011
Thanx for helping,
M=10
n=1
Vx=1
Dx=1
Dy=1
Dz=1
Xmax=2
Ymax=2
Zmax=2
t=10
would be fine
at the moment the graph doesn't change when I change the Xmax and Ymax input when I plot contour3(X,Y,C). But if I change any of the other variables the graph changes.

Sean de Wolski on 12 Sep 2011
An isosurface with different colored and shaded patch es can be used to visualize 4d data.
doc isosurface
doc patch
Bastion on 13 Sep 2011

Basma M on 10 Jun 2015
hi Bastion, i was wondering if you ever knew the correct code for this problem. i am very much interested in the solution you came up with cuz i need to solve the same equation but having difficulties doing so. I would really appreciate your feedback on this, it is somewhat urgent and i've already spent too much time and effort trying to work it out. THANKS
Walter Roberson on 11 Jun 2015