MATLAB: I want to plot a 3d image of the set of values attached herewith. i am also enclosing the possible image that will be the output of the desired Matlab code.

3d plottingdata points plotting

Kindly share the Matlab code for the plot of the following set of 3 tuples values.

Best Answer

data = xlsread('Book1.xlsx') ; 
x = data(:,1) ; 
y = data(:,2) ; 
z = data(:,3) ; 
nx = length(unique(x)) ; 
ny = length(unique(y)) ; 
X = reshape(x,nx,ny) ; 
Y = reshape(y,nx,ny) ; 
Z = reshape(z,nx,ny) ; 
surf(X,Y,Z)
shading interp 
colorbar

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MATLAB: Contour plot for given x,y,z


[num,txt,raw] = xlsread('Book1.xlsx') ; 
x = num(:,1) ; 
y = num(:,2) ; 
z = num(:,3) ; 
figure(1)
scatter(x,y,20,z,'filled') ; colorbar
%% Method 1 / Griddata
nx = 500 ; ny = 500 ;
[X,Y] = meshgrid(linspace(min(x),max(x),nx),linspace(min(y),max(y),ny)) ;
Z =griddata(x,y,z,X,Y) ;
figure(2)
contour(X,Y,Z) ;
figure(3)
pcolor(X,Y,Z)
shading interp 
%% Method 2 simple reshaping 
x = unique(x) ; nx = length(x) ;
y = unique(y) ; ny = length(y) ;
Z = reshape(z,ny,nx) ;
figure(4)
contour(x,y,Z)

MATLAB: How to plot a temperature colored map

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) ;

Best Answer

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MATLAB: Contour plot for given x,y,z

MATLAB: How to plot a temperature colored map

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