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Help with contour of a matrix

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aurc89
aurc89 2014-4-24
关闭： MATLAB Answer Bot 2021-8-20
I have to plot a bidimensional map of a matrix using 'contour', and what I obtain is plotted in figure.
The problem is that in this way I have discrete lines, while I need to see a continuum between minimum and maximum values, with a gradual change of colors, with no blank spaces. Is it possible to do that? Maybe using a function different from 'contour'? Thanks!

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回答（1 个）

Doubutsu
Doubutsu 2014-4-24
I have about the same kind of image if I try to use contour on my data. Instead I plotted it using 'imagesc'. It works good enough for me (since I just want to see something), but I don't know if it is what you are looking for.
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aurc89
aurc89 2014-4-24
编辑：aurc89 2014-4-24
Thank you, now it looks better! Just one question: by using imagesc the image is not at the same position, because the vertical axis is reversed, while I prefer not to reverse it. How can I do it? In the figures below you can see what I mean (the first one is obtained by using contour, the second one with imagesc)
Chad Greene
Chad Greene 2014-6-25
Indeed, imagesc will flip your data vertically. So you'll need to do imagesc(flipud(yourData)). Alternatively, you could use pcolor(yourData).

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