I don't think that plots a vector. Here's the sort of thing I was looking for:
http://www.mathworks.com/matlabcentral/fx_files/23608/1/content/html/drawLAInro_02.png Of course it doesn't need to be a point...it can be a line or a line segment too. Adit On Mon, May 3, 2010 at 9:13 PM, Joe Kington <jking...@wisc.edu> wrote: > 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 >> >> > -- wefoundland.com
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