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Silly question regarding plotting of contours

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Rodney
Rodney 2012-11-7
关闭： MATLAB Answer Bot 2021-8-20
Hi, i have a set of velocity data at x and y locations. How do i plot the contours of the velocity data? I have looked at a few forums and most of them give velocity as a function of x and y. I dont have a function. I have a column of velocity. I know at first i would need to create a mesh grid with x and y. but as soon as i used the function contour(X,Y,u) i got an error. Can anybody help? Many thanks?
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Image Analyst
Image Analyst 2012-11-7
What do the rows (elements) of that column of velocities represent? The x values, the y values, or something else? Let's say index 10 has a velocity of 42. Okay, what x,y location is that 42 supposed to be at? You'd need an x and a y but all you have is the index (element number) which is one number, not two.

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Khaled Hamed
Khaled Hamed 2012-11-7
Check
help TriScatteredInterp

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