Improving resolution for a surf plot in MATLAB
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I am using the SURF command to represent some data. I want to plot the surface of a disc in a 3d chart.
The only problem is that my data is in a 9x9 format, this naturally results in a square looking surface. I’d like for the resulting surface to look like a circle.
Is there way to “cut off” the edges somehow?
1 个评论
Todd Flanagan
2011-1-21
Hi, I moved your answer to a comment on Doug's answer. That's a good place for that sort of back and forth.
回答（2 个）
Sean de Wolski
2011-1-21
Interpolate to refine your mesh.
doc interp3
1 个评论
Walter Roberson
2011-1-21
Or griddata(). Or the Matlab File Exchange contribution gridfit()
Doug Hull
2011-1-20
NaN does not get shown in a surf plot.
a = magic(10)
a([1,2,11,90,99,100]) = NaN
surf(a)
view(2)
3 个评论
Todd Flanagan
2011-1-21
Raygereio says, "Thanks. That is a step in the right direction, but not quite what I was hoping for.
With my 9x9 dataset, this results is somewhat ugly looking jagged edges. Is there any way to produce a more smoother looking circle?"
Doug Hull
2011-1-21
There is only so much you can do with that coarse of data. Can you sample more data?
Hussain
2011-9-1
Is it possible then to implement a smooth curve at the rough edges? I ask in a general sense when larger data sets are in question.
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