Problem obtaining a symmetrical surface using surf
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%% Dear matlab user, probably my question is simple but...
%% I would like to plot z=f(x,y) using "surf" with the code below.
%%% In my datas, maximum value (50) of z is at x=y=0 but not in the surface plot.
%%% how can I have the center of the red square at x=y=0 and not at x=y=0.5
%%% thank you.
%%%% denis
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure (1)
clf
x=[ -3 -2 -1 0 1 2 3 ];
y=[ -2 -1 0 1 2];
z=[
0 0 0 0 0 0 0
0 0 30 30 30 0 0
0 0 30 50 30 0 0
0 0 30 30 30 0 0
0 0 0 0 0 0 0];
surf (x,y,z)
view([0 90])
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
采纳的回答
Walter Roberson
2013-4-3
0 个投票
You cannot. surf() always uses the interior intersections of the original data as the locations of its vertices, and it can only assign colors at those locations; see the CData property at http://www.mathworks.com/help/matlab/ref/surfaceplotproperties.html
If you want to look down from above like that, use imagesc() instead of surf()
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