Re: [Matplotlib-users] How to plot a 2d streamline in 3d view in matplotlib

[Benjamin R. <ben...@ou...>]

Well, there is the new 3D quiver feature:
http://matplotlib.org/examples/mplot3d/quiver3d_demo.html. Not quite
streamlines, but it might do in a pinch.

Another approach:
There is the 2d streamplot() function that returns a specialized object.
>From the docstring:
```
    Returns:

        *stream_container* : StreamplotSet
            Container object with attributes

                - lines: `matplotlib.collections.LineCollection` of
streamlines

                - arrows: collection of `matplotlib.patches.FancyArrowPatch`
                  objects representing arrows half-way along stream
                  lines.
```

You might be able to get away with using the "lines" object and feeding it
through art3d.line_collection_2d_to_3d(), kind of like how it is done for
pathpatch objects here:
http://matplotlib.org/examples/mplot3d/pathpatch3d_demo.html. You might
also be able to pass the individual objects in the "arrows" list through
art3d.patch_2d_to_3d(), but I have no clue if that would actually work or
not.

I hope that helps!
Ben Root


On Thu, May 21, 2015 at 7:45 AM, Raj Kumar Manna <raj...@gm...>
wrote:

> Hi,
>
> I need to plot a 2d streamline in 3d view like this
> <http://stackoverflow.com/questions/14963004/continuous-shades-on-matplotlib-3d-surface>.
> As suggested by the post
> <http://stackoverflow.com/questions/16252231/symmetric-streamplot-with-matplotlib/16373060#16373060>,
> I need to extract streamlines and arrows from a 2d plot and then transform
> it to 3d data. How to transform this 2d streamline data to 3d data and plot
> using mplot3d?
>
> Thanks in advance.
>
> Raj
>
>
> --
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> IIT Madras
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