Graph range problem with tab control

Hello.
I am using LabVIEW 8.2.1
I have five XY-graphs in a tab control, with five tabs. One graph in each tab. When running, theese graphs is constantly written to, but the user is only allowed to watch one at a time.
The program also contain a maximum&minimum chart, containg the maximum and minimum value for every plot in the viewable part of the graphs. The user can zoom in on a graph, and then watch the max&min values in this picture. The values are calculated by taking the range to each graph, and use theese ranges to cut out the viewable part from the input data to the graphs.
The problem is, that the program only see the last viewed range. If I view a graph in a tab, the max&min values for this graph is correct, but the four other graphs dont get the correct values. The graphs data is written correctly. It seems like the ranges from the "hidden" graphs dont get updated when not viewed. Does anybody know how to fix this problem?
I have uploaded an example to this problem. See how the range just freezes on the not viewed graph, even the two graphs is exactly the same.
Thanks
Fredrik, Norway
Message Edited by Kalman on 06-19-2008 01:58 AM
Attachments:
graph_range_problem2.vi ‏24 KB

Frederik,
the reason for your issue is autoscaling. If the graph is not drawn, autoscaling will not take place, so you will not get any correct values, you will get the last autoscale-values.
The behaviour therefore is "works as intended" since it reduces CPU usage.
So the best way to work around is something like seen in the attached VI: you should compute the scaling for each graph on your own and use this to update the scales as well as the indicators (which i left out in my VI).
hope this helps,
Norbert
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.
Attachments:
Scaling.vi ‏25 KB

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-Zen server is also SP1 IR3a.
We have no problem using remote control on workstation objects. We are having intermittent issues with remote controlling user objects. When the issue occurs, we receive the following error, "Error 1759: The selected user is not logged in on any workstations" even though the user is in fact logged in. After some more research, it appears that the "networkAddress" attribute of the user object is blank so we feel that this is the root cause. My question is what would cause the networkAddress attribute to randomly not update? For instance we had a user (verified his login) who we could not remote via the user object (workstation object worked). We checked his networkAddress attribute and found that it was empty. User rebooted and logged in again and his networkAddress attribute populated, and then we could remote control him via the user object. Now this isn't always the case after a reboot. There doesn't appear to be any pattern to when the networkAddress attribute does or does not update. In fact, this particular user has a laptop so he boots it up fresh every morning yet he was not showing a network address when he logged in initially today.
We've followed the troubleshooting steps in Novell Documentation without any success. Is there anything else that we might be missing, especially with respect to getting the networkAddress attribute to update? We ran a DSreport on that attribute and found about 500 out of a total of 1500 users had no networkAddress. Some of those are sure to be legitimate but that number is much too high for the number of people that should be in the office.
I've read some older threads on the subject but none of them really provide a firm solution. Also most of the older threads reference Middle Tier which we are not using.
Thanks in advance.

> 4.91 SP2 Netware client.
You could try this TID:
"A user will no longer have an entry in their "Network Address" attribute
even though they are logged into the eDirectory Tree."
http://www.novell.com/support/viewCo...1262&sliceId=1
"Resolution"
"This was fixed in the 4.91 SP3 client. NWFS.SYS was modified so that it
will check the monitor connection on a reconnect and if it is not connected
close the connection and try and get a new monitor connection to the tree.
Prior to the 4.91 SP3 client, the solution is to have the user login again
so that it issues the NDS Finish Login request again that will populate
Network Address again."
Regards
Rolf Lidvall
Swedish Radio (Ltd)

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