How to avoid the split line

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fasfa
fasfa 2013-10-18
评论： A Jenkins 2013-10-21
Hello,
When I am using the surf matlab's function, I get a split line int he middle of the representation, a plit line produced for a change of colours. I do not know how to avoid that, it shouldn't be there because two consecutive points have the same value so they should have the same color.
It is a littne messy, so I think with an example it would became clearer.
Code:
[Th,Ph]=meshgrid(-20:20,0:1:180);
[mM,nM]=meshgrid(1:10,1:10);
x1=sin(Th*pi/180).*cos(Ph*pi/180);
y1=sin(Th*pi/180).*sin(Ph*pi/180);
Tx=2*pi*x1; Ty=2*pi*y1;
FA=exp(1i.*(mM(:)*Tx(:).'+nM(:)*Ty(:).'));
FA2=ones(100,1).'*FA;
FA3=reshape(FA2,length(Th(:,1)),length(Th(1,:)));
FAxEcp=abs(FA3).'/max(max(abs(FA3)));
AA=20*log10(FAxEcp).';
AA(AA<-35)=-35;
surf(x1,y1,AA,'EdgeColor','none','LineStyle','none');%,'FaceLighting','phong');
az = 180;
el = 90;
view(az, el);
axis([-0.5 0.5 -0.5 0.5 -35 0])
Thanks in advance!

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回答（2 个）

A Jenkins
A Jenkins 2013-10-18
编辑：A Jenkins 2013-10-18
Are you allowed to give it a bit more resolution? Changing just the first line solved it for me:
[Th,Ph]=meshgrid(-20:.1:20,0:1:180);
(or at least it made the difference less noticable, since I do see a small step change in your data when it crosses zero)
  1 个评论
A Jenkins
A Jenkins 2013-10-21
Per your comment below dated 19 Oct 2013 at 9:55. Try this:
surf(x1,y1,AA,'EdgeColor','none','LineStyle','none','FaceColor','interp');

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fasfa
fasfa 2013-10-19
Thanks A Jenkins,
I noticed that, but the problem is that when the data is big, I can not do that because I have not memory enough (I updated just a simplification of my original problem). And, although giving more resolution gets better result, it does not overcame the problem completely.
Any other thoughts? Thanks again

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