Changing parameters on the fly?

[bob.wolff68]

Well - we gave a shot at the interactive input on SmartDashboard with no luck. It all works on a separate computer as we've all noted, but otherwise...sigh. We tried to also put a button on the SmartDashboard so we could interactively click on the button ... no go...

So, SmartDashboard::GetInstance()->GetDouble() doesn't work... so we use GetString() and then sscanf() to turn it into a double.

Also, using Preferences::GetInstance()->PutString() doesn't work, but PutDouble() and PutInt() work just fine.

bob

[virtuald]

You should check out the SendablePIDController, which is part of the SmartDashboard. I'm not sure if it works in C++ because of the double issue... but it works for me in python

And, before there was SmartDashboard, there was WebDMA, which does the same thing as SmartDashboard except with a webserver on your robot.

[jhersh]

Originally Posted by bob.wolff68

Well - we gave a shot at the interactive input on SmartDashboard with no luck. It all works on a separate computer as we've all noted, but otherwise...sigh. We tried to also put a button on the SmartDashboard so we could interactively click on the button ... no go...

So, SmartDashboard::GetInstance()->GetDouble() doesn't work... so we use GetString() and then sscanf() to turn it into a double.

Also, using Preferences::GetInstance()->PutString() doesn't work, but PutDouble() and PutInt() work just fine.

bob

Have you filed trackers for these issues? If they aren't tracked we don't know about them and are less likely to fix them.

http://firstforge.wpi.edu/sf/tracker....wpilib_c_bugs

Thanks,
-Joe

[bob.wolff68]

Joe,
Thanks for the link to the trackers -- I filed 3 for:
- SmartDashboard::GetDouble() doesn't work for interactive data.
- Preferences:utString() doesn't work at all
- SmartDashboard:utInt() graphs/logs an incorrect (huge) value once in a blue moon causing graphs to become unreadable until the errant data-point scrolls off the graph.

Bob Wolff

Originally Posted by jhersh

Have you filed trackers for these issues? If they aren't tracked we don't know about them and are less likely to fix them.

http://firstforge.wpi.edu/sf/tracker....wpilib_c_bugs

Thanks,
-Joe