MATLAB Answers

Mo Ba
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3D visualization of this data

Asked by Mo Ba
on 24 Jul 2017
Latest activity Edited by Mo Ba
on 24 Jul 2017
Hello, This is my data matrix in MATLAB:
43.676289 -79.477386 1
43.676370 -79.477107 5
43.676517 -79.477375 20
43.676417 -79.477509 8
43.676129 -79.477278 15
First column is Y axis, second column is X axis and third column is my data. How do I draw a bar graph and how to adjust the color of bars according to the value of data (like colorbar in surfe graph) for each data point in MATLAB? the problem is unit of XY axis is not compatible with Z, and this made me confused. I added an example graph which I drew for another data matrix. In this example X,Y,Z were linear and I could draw this graph using 'surf' command with no problem. I need to draw the same graph for mentioned data.

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1 Answer

KSSV
Answer by KSSV
on 24 Jul 2017

data = [ 43.676289 -79.477386 1
43.676370 -79.477107 5
43.676517 -79.477375 20
43.676417 -79.477509 8
43.676129 -79.477278 15];
y = data(:,1) ;
x = data(:,1) ;
z = data(:,3) ;
[X,Y] = meshgrid(x,y) ;
Z = repmat(z,1,size(X,1)) ;
surf(X,Y,Z)
colorbar

  1 Comment

Mo Ba
on 24 Jul 2017
Thanks for answer. Please have a look at the result of your code. Unfortunately it doesn't make sense to me. there were a small mistake in your code that i fixed it. But still doesn't work as I need.
y = data(:,1) ;
x = data(:,2) ;
z = data(:,3) ;

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