> From: Gianfranco Durin [mailto:g.du...@inrim.it] > Sent: Wednesday, November 10, 2010 11:32 > > Dear mpl users, > I have the following problem to solve. Imagine to have the > simple example reported on website plotting the errorbars of > some x,y data:
... > and if I change, for instance, y: > > y = y/2. > > I can easily replace the x,y with: > > p[0].set_data(x,y) > > but I do not know how to do the same for the errorbars. I believe I see how you could do it. The errorbar call returns the tuple p = (plotline, caplines, barlinecols) [1], and to update the errorbars, you must modify the objects in the caplines and barlinecols lists. Each element of the caplines list is a Line2D artist [2] for the left, right, top, or bottom caps; you can use its methods set_data, set_xdata, or set_ydata to modify its coordinates, as you did for the main line. Each element of the barlinecols list is a LineCollection [3] artist responsible for all of the x or y errorbars; you can use the set_segments method to provide new coordinates. [1] http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.error bar [2] http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.lines.Line2D [3] http://matplotlib.sourceforge.net/api/collections_api.html#matplotlib.collecti ons.LineCollection ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
