Compute Streamlines in Parallel and Antiparallel Directions

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Orion
Orion 2018-4-30
评论： Orion 2018-5-1
I have a field vector on a 3D grid and I am using
XYZ = stream3(X,Y,Z,U,V,W,startx,starty,startz)
to calculate the streamlines. It works great when calculating the streamlines parallel to the flow. However, I need to find the streamlines upstream (antiparallel) and downstream of the seed points. Is there any way to do that?

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Wick
Wick 2018-5-1
Just reverse your velocity fields.
XYZ_reverse = stream3(X,Y,Z,-U,-V,-W,startx,starty,startz)

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