Hi Lubos, Lubos Vrbka wrote: >> 1. Would it be possible to do only shallow copy of the arrays that are >> being plotted so that on redrawing the figure, chanes in the datasets >> would be picked up automatically? If not, is Line2D.set_data(...) the >> right approach? >> > isn't this the way how the plotting is done? in my experience (iirc), > the following thing works (x, y1, y2 are numpy arrays): > > pylab.ion() > > a, = pylab.plot(x,y1) > b, = pylab.plot(x,y2) > ... > y1 += 10 > y2 += 20 > > a.set_ydata(y1) > b.set_ydata(y2) > pylab.draw() > > y1 += 10 > y2 += 20 > a.set_ydata(y1) > pylab.draw() > > in my experience BOTH plots get updated in this procedure, so i have to > do first a deep copy in my case to get rid of these 'unwanted effects'... > If I understand correctly the len of X and Y will be changing, therefore you may have to use set_data() function of Line2D
set_data(self, *args) Set the x and y data ACCEPTS: (array xdata, array ydata) I seem to remember getting a size mismatch if X and Y grew in length and I tried to use set_xdata() or set_ydata() separately. YMMV Steve ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
