Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-29 Thread John Hunter
On Mon, Apr 28, 2008 at 8:21 PM, Sunzen Wang [EMAIL PROTECTED] wrote: I feel it something to do with zooming in beyond the resolution of the underlying system (no evidence of this) I have no idea of it. Could some masters say something about it? This is an old, long standing bug. It

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-29 Thread Michael Droettboom
I was able to reproduce it on 0.90.1 and 0.91.2, but not SVN trunk. This could be because the affine transformation that does the zooming in now happening within the Agg backend rather than at the Python level -- i.e. there are fewer opportunities for floating-point underflow and the like.

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-29 Thread John Hunter
On Tue, Apr 29, 2008 at 7:45 AM, Michael Droettboom [EMAIL PROTECTED] wrote: I was able to reproduce it on 0.90.1 and 0.91.2, but not SVN trunk. This could be because the affine transformation that does the zooming in now happening within the Agg backend rather than at the Python level -- i.e.

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-28 Thread Sunzen Wang
Hi Stephen, On Mon, Apr 28, 2008 at 1:57 PM, Stephen George [EMAIL PROTECTED] wrote: Hi Sunzen, I also get similar results as you. - always have Thank you for your trying. 'extremely zoomed' means I pick a corner of your staircase, and zoom in on the corner multiple times, each time no

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-27 Thread Sunzen Wang
Oh, a pity. While it's true that it is easily reproduced on my system and also my users'. On my system, matplotlib is 0.90.1, and gtkagg backend is used. Thank you for your attention. Regards On Fri, Apr 25, 2008 at 8:15 PM, Michael Droettboom [EMAIL PROTECTED] wrote: I'm not able to reproduce

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-27 Thread Stephen George
Hi Sunzen, I also get similar results as you. - always have 'extremely zoomed' means I pick a corner of your staircase, and zoom in on the corner multiple times, each time no bigger than the cross hairs of the cursor. If I don't get the blocked out triangles I get the data changing direction

Re: [Matplotlib-users] Strange Plotting Behavior When Extremely Zoomed

2008-04-25 Thread Michael Droettboom
I'm not able to reproduce this bug. What version of matplotlib are you using and which backend? Cheers, Mike Sunzen Wang wrote: Hi, As title, When extremely zooming in by 'Zoom to Rectangle' navigation button, there will strange plot. A script is attached and two strange plots are