I just put together an animated bargraph to show results from a realtime process.
I used this as an example: http://matplotlib.sourceforge.net/examples/animation/animation_blit_qt4.html The tricky part for me was that in the original design, there was a realtime process running. I have to write some information to my hardware (at a rate of about 1/360ms). To do this, I have a kernel driver that uses 'read' to tell the user space when an interrupt has occurred, which is when the user space should write new information to the hardware. So I don't know how or if this could be hooked into qt event processing. Just for a quick-and-dirty demo, I just removed the realtime processing from the user-space and put it in the kernel driver, so now my bargraph display can simply update on a periodic timer, and the userspace code has no realtime requirement. But this is just a kludge. So I wonder how other's would solve this? I'm thinking it would be either: 1) multi-process 2) multi-thread 3) 1 process, but somehow hook my realtime events into qt's event loop. For #3, my device driver has a filedescriptor, that could use select to detect the interrupt (rather than blocking read call). #1 and #2 seem complicated. ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
