How can I extract surface plot data from MATLAB figure?

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vasudha agrawal
vasudha agrawal on 26 Jun 2018
Commented: TheStranger on 17 Dec 2021
I would like to extract surface plot data from saved matlab fig. I am trying using below code
ch=openfig('latching_surfplot.fig');
ch = findobj(ch,'Type','surface');
surfl(x,y,z);
ch=get(gca,'ch');
x=get(ch,'xd');
y=get(ch,'yd');
z=get(ch,'zd');
But I am getting the following error
Undefined function or variable 'x'.
*Error in surfvslineplot
surfl(x,y,z);*
Please help.
Thanks
  2 Comments
vasudha agrawal
vasudha agrawal on 26 Jun 2018
If I remove surfl(), then following error came. So, I added surfl() command.
Error message: There is no xd property on the Surface class.
Error in surfvslineplot x=get(ch,'xd');

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Accepted Answer

KSSV
KSSV on 26 Jun 2018
[X,Y,Z] = peaks(100) ;
surf(X,Y,Z)
h = gcf; %current figure handle
axesObjs = get(h, 'Children'); %axes handles
dataObjs = get(axesObjs, 'Children'); %handles to low-level graphics objects in axes
%%get data
XX = dataObjs.XData ;
YY = dataObjs.YData ;
ZZ = dataObjs.ZData ;

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