| T O P I C R E V I E W |
| tbarr5072 |
Posted - 30 Mar 2006 : 07:52:08
I just started using your package to display realtime waveform data from 6 sensors (1 second update 1000 points per second) 1 scroll frame per sensor. Things are working well its plotting the data and scrolling on the x direction correctly. However at random times I get a pause in the scroll that causes a flat line in the center of all 6 graphs to appear. When the plotting restarts I get extra lines in addition to the waveform that is supposed to be there. Note this only happens in the center of the graph and occurs on all 6 scroll frames at the same time.
I have made sure that there is no blocking on data acquisition. I am running Linux with java 1.5 and eclipse 3.1.2. I would be happy to send/post the code if that would help (I started with your example scrollgraph demo).
Any Ideas on how to prevent these artifacts from appearing ?
Thanks for your help - Tom |
| 3 L A T E S T R E P L I E S (Newest First) |
| quinncurtis |
Posted - 30 Mar 2006 : 09:31:53
It's like they always say, timing is everything. |
| tbarr5072 |
Posted - 30 Mar 2006 : 09:23:45
First I would like to thank you for your prompt response, I have never gotten response to a post to a support form as fast as yours.
In addition, your question lead me to the solution, I was getting my timming information from the sensors and when that fell out of sync with the host computer I would get the drawing artifacts. Using time information from the host computer only solved the problem.
Thanks - Tom |
| quinncurtis |
Posted - 30 Mar 2006 : 08:10:40
Can you reproduce the problem using simulated data, like all of our example programs use, instead of your actual sensor data ?
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