I modified the DrawPolyLine function in TGX11.cxx to split polylines with
too many points into drawable chunks. This would not handle the case where
someone wanted to draw a filled curve with too many points; but I don't need
really big filled curves anyway. This change enabled ROOT to successfully
handle a TGraph of 10^7 points (not quickly, by any means, but at least it
draws the graph and doesn't crash).


git-svn-id: http://root.cern.ch/svn/root/trunk@4200 27541ba8-7e3a-0410-8455-c3a389f83636