How to plot a temperature colored map

Hi everybody,

I have a matrix A=[x,y,temperature] with a lot of rows in each column. I would like to have a continuous colormap (preferably with the equipotential) of the temperature assign to each points. I am able to have the scatter with color, but it's difficult to see the evolution in space (see picture below). I have tried with surf, with contourf, but nothing seems to work (at least when I try with the other example I saw).

[darova]

Attach data and your attempts

[Gab D]

Hi,

I don't have much to show in terms of attempt, because nothing would give me something close to what I expected. I putted the variable I use in attachment file.

figure(1)
contourf(A)
surf(A)

[darova]

Look for griddata()

Answer 1

[KSSV]

load('A.mat')
x = A(:,1) ; 
y = A(:,2) ; 
z = A(:,3) ; 

nx = length(unique(x)) ; 
ny = length(unique(y)) ; 

X = reshape(x,nx,ny) ; 
Y = reshape(y,nx,ny) ; 
Z = reshape(z,nx,ny) ; 

pcolor(X,Y,Z) ;

[Gab D]

Thank you very much! This is perfect :)

Answer 2

[sheshu kumar]

load('A.mat')

x = A(:,1) ;

y = A(:,2) ;

z = A(:,3) ;

nx = length(unique(x)) ;

ny = length(unique(y)) ;

X = reshape(x,nx,ny) ;

Y = reshape(y,nx,ny) ;

Z = reshape(z,nx,ny) ;

pcolor(X,Y,Z) ;