streamline function gives empty output
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Hi, I am trying to get the streamlines using
verts=stream2(x,y,u,v,startX,startY)
but the output is always empty. Then I tried
quiver(x,y,u,v)
and this plots the velocity field nicely. I also
plot(startX,startY)
and the line is exactly where I want to plot the streamline. I am confused why I got an empty output with stream2. The variables x, y are not meshgrids, and I am not sure if this is becomes a problem for streamline calculation. Does anyone meet a similar problem before? Thanks.
回答（1 个）
KSSV
2022-9-23
0 个投票
Try replacing NaN's in u, v with zero and use stream2.
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