How to make correct axis?

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J.
J. 2011-9-13
Im doing a plot using surfc(z(2:74,2:20)) (2:74 and 2:20 because the first row and first column is the x- and y-axis values), but.. my data is from a simulation where i used 5 steps between each simulation. So my x-axis goes from 0 to 90, but with only 19 values. Same problem with the y-axis - there i have 73 values, but going from -180 to 180.
How do i make matlab understand this, so that the values on the x- and y-axis isnt 0-20 and 0-80 ?
Thanks in advance - i hope there are some bright minds out there :)

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回答（1 个）

Jan
Jan 2011-9-13
You have to define the X- and Y-values in the SURFC command to define the X- and Y-values in the plot. E.g.:
[X,Y,Z] = peaks(30);
figure
surfc(X,Y,Z)
figure
surfc(X + 10,Y,Z)
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J.
J. 2011-9-13
Not sure i fully understand how to do that exactly. Can you explain it further?

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