Problem with origin and plotting axes
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Hi, I've been having problems with the plotting axes when it comes to plotting 2D points in MatLab (r2010a).
On a simple test program like:
W=[[0 0]' [0 1]' [1 0]' [1 1]'];
for i=1:4;
plot(W(:,i));
end
The origin is translated to (0,1). I've of course tried all the "normal" ways of setting axes, but the problem is still there. Anyone had similar problems, or may know of some default variables I could change to solve this rather irritating time spender?
Thanks for any help!
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Brett Shoelson
2011-2-10
Is this what you're looking for?
>> x = [-0.5 0.5 0.5 -0.5];
>> y = [-0.5 -0.5 0.5 0.5];
>> plot(x,y,'ro')
>> axis([-1 1 -1 1]); %OR: set(gca,'xlim',[-1 1],'ylim',[-1 1])
Cheers,
Brett
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更多回答(1 个)
Davide Ferraro
2011-2-10
Your code is basically:
plot([1 1]');
and is represented by a line with first point(1,1) and second point (2,1) (giving only y values, the x are placed automatically incrementally from 1).
If you want to display also the (0,0) coordinate you can simply use the AXIS command:
axis([0 2 0 2])
另请参阅
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