On 02/27/2014 06:58 PM, Jon Roadley-Battin wrote:
Good evening,
I am at present migrating an application of mine from py27+pygtk (with
mpl) to py33+pygobject (gtk3)
Unfortunately I am unable to use
from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as
FigureCanvas
from matplotlib.backends.backend_gtk3 import NavigationToolbar2GTK3 as
NavigationToolbar
Which is is on the examples (
http://matplotlib.org/examples/user_interfaces/embedding_in_gtk3_panzoom.html
) but is also the logical translation from what I presently have.
This falls fowl of the cairo issue
What I am having to use is backend_gtk3cairo. However this is being
triggered
raise ValueError("The Cairo backend can not draw paths longer than
18980 points.")
I am generally plotting 7 x-y plots with upto 30,000 points.
Now for now I have commented this out from my local install, is there
a better/preferred/recommended alternative?
This was put in there because cairo had (at least at the time) a hard
coded limit on path size, and getting a Python exception was IMHO
preferable to segfaulting and having the process go away. Are you
saying that when you comment it out, it's currently working? It may be
that cairo has fixed this limit in the intervening years. Can you
provide a simple, standalone example that reproduces the error?
I have read about cairocffi but this doesn't
seem conveniently possible at this moment in time (especially for
windows)
I'm not sure if the Python wrappers will matter, since this issue is
actually in the underlying Cairo library.
Equally I have seen mpl-devel mailing list entries from 4years ago
stating that this check was to be removed (a cairo 1.4.10 issue)
Are you referring to this thread?
http://matplotlib.1069221.n5.nabble.com/Path-length-in-the-cairo-backend-td36582.html
The conclusion there (if you scroll down) was that the check is still
needed as of Cairo 1.8.
Mike
JonRB
------------------------------------------------------------------------------
Flow-based real-time traffic analytics software. Cisco certified tool.
Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Customize your own dashboards, set traffic alerts and generate reports.
Network behavioral analysis & security monitoring. All-in-one tool.
http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
--
_
|\/|o _|_ _. _ | | \.__ __|__|_|_ _ _ ._ _
| ||(_| |(_|(/_| |_/|(_)(/_|_ |_|_)(_)(_)| | |
http://www.droettboom.com
------------------------------------------------------------------------------
Flow-based real-time traffic analytics software. Cisco certified tool.
Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Customize your own dashboards, set traffic alerts and generate reports.
Network behavioral analysis & security monitoring. All-in-one tool.
http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
