Isn't that what quiver<http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.quiver>does? Or am I misunderstanding the question?
2010/5/3 aditya bhargava <bluemangrou...@gmail.com> > Thanks Johan and Matthias, > I was just wondering if there was a built-in way to do this in matplotlib. > It seems like it would be a useful method to have. > > Adit > > > 2010/5/3 Johan Grönqvist <johan.gronqv...@gmail.com> > > 2010-05-02 20:19, aditya bhargava skrev: >> > Is there a straightforward way of plotting a vector in matplotlib? >> > Suppose I want to plot the vector [1 2]'. If I pass this vector in to >> > plot(), I get the line that passes through (0,1), (1,2). Instead I want >> > the line that passes through (0,0),(1,2). >> > >> >> I use pyplot.Arrow to visualize displacement fields. >> >> This is a snippet copied from the code I use (it sits in a loop over all >> vectors I want to plot): >> >> >> arr = plt.Arrow(x, y, dx, dy) >> plt.gca().add_patch(arr) >> >> In your case, you would have (x, y) = (0, 0) and (dx, dy) = (1, 2). >> >> Regards >> >> Johan >> >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >> > > > > -- > wefoundland.com > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > >
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