Forum: Programming
09-07-2016, 20:40
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Replies: 6
Views: 1,398
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Forum: Programming
04-04-2016, 13:30
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Replies: 37
Views: 6,131
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Forum: Java
19-03-2016, 23:04
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Replies: 8
Views: 1,169
Re: GRIP Deploy Error
lsof doesn't fix anything, it just outputs some stuff about open files that should be useful for debugging. What was the output?
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Forum: Java
13-03-2016, 04:30
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Replies: 4
Views: 661
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Forum: Java
13-03-2016, 04:28
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Replies: 3
Views: 635
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Forum: Programming
11-03-2016, 18:04
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Replies: 37
Views: 6,131
Re: Are You Using A Camera To Align Their Shooter?
That's really cool to hear. Do you have any suggestions for more feature refinement operations? If you open an issue (https://github.com/WPIRoboticsProjects/GRIP/issues/new) and it doesn't look too...
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Forum: Programming
10-03-2016, 13:24
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Replies: 12
Views: 1,689
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Forum: Programming
08-03-2016, 20:04
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Replies: 12
Views: 1,689
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Forum: Java
03-03-2016, 22:18
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Replies: 3
Views: 704
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Forum: Programming
03-03-2016, 22:16
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Replies: 8
Views: 861
Re: Grip issue when on FMS
I'm not sure I completely understand the problem. Could you post the program output or screenshots of what you're referring to?
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Forum: Python
01-03-2016, 22:27
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Replies: 8
Views: 1,194
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Forum: Programming
29-02-2016, 14:16
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Replies: 1
Views: 740
Re: Using GRIP with an IP Camera
Is there a setting on the camera to allow anonymous access? If not, you might be able to add "?user=admin&password=" or something to the URL.
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Forum: Programming
29-02-2016, 14:14
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Replies: 19
Views: 3,285
Re: publish video on Kangaroo with Grip
This can be done with the "Publish Contours" operation in GRIP, with the networktables server address set to your roboRIO's address.
I'm not exactly sure how to do startup programs on Windows, but...
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Forum: Programming
29-02-2016, 13:18
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Replies: 19
Views: 3,285
Re: publish video on Kangaroo with Grip
What part in particular do you need guidance on? There's already documentation on the wiki, but if you post any specific trouble I bet someone knows a solution.
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Forum: Java
29-02-2016, 13:09
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Replies: 8
Views: 737
Re: GRIP WITH PID and 1 Target Tracking
So these are all separate speed controllers? In that case, you could use a lambda to set all of them.
PIDController pid = new PIDController(0.8, 0.01, 0.2, gyro, speed ->...
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Forum: Java
28-02-2016, 22:27
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Replies: 8
Views: 737
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Forum: Java
28-02-2016, 22:22
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Replies: 8
Views: 737
Re: GRIP WITH PID and 1 Target Tracking
Ah, okay.
Are you using a PIDController/PIDSubsystem? If so, it's really a matter of figuring out the right P, I, and D constants to use, which is just a lot of trial and error.
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Forum: Java
28-02-2016, 21:45
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Replies: 8
Views: 737
Re: GRIP WITH PID and 1 Target Tracking
You can't really use vision data directly as the input to a PID loop. It's way too laggy, so you'll always overshoot.
Instead, get a single value, then use that to calculate a setpoint. For the...
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Forum: C/C++
24-02-2016, 16:35
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Replies: 1
Views: 433
Re: GRIP, Network Tables, and mutual exclusion
NetworkTables guarantees individual reads and writes are atomic, so you should be good there.
It's possible that GRIP is writing, for example, the area array and the centerX array, and one in a...
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Forum: Java
23-02-2016, 22:49
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Replies: 2
Views: 444
Re: Translating GRIP to NIVision
GRIP isn't incompatible with USB cameras. You should try running the v1.3-rc1 release (https://github.com/WPIRoboticsProjects/GRIP/releases), which fixes the problems that people have most commonly...
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Forum: Programming
23-02-2016, 22:45
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Replies: 3
Views: 772
Re: How to pause GRIP data input?
This feature hasn't been documented yet, but yes, you can pause GRIP using NetworkTables if you're using the very latest release candidate (v1.3-rc1)...
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Forum: Java
23-02-2016, 18:29
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Replies: 8
Views: 1,169
Re: GRIP Deploy Error
Sounds like some process (possibly a previous instance of GRIP) has a lock on the log file. Can you try running "lsof | grep GRIP.log" on the RIO using SSH?
It also might be a good idea to just...
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Forum: Programming
22-02-2016, 19:35
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Replies: 31
Views: 6,156
Re: GRIP with USB Camera
All of the builds actually include binaries for both the platform it runs on (ie: windows 64-bit) and the roboRIO. The deploy tool in GRIP should automatically copy everything you need over.
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Forum: Java
22-02-2016, 00:04
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Replies: 7
Views: 910
Re: JavaCV Help
Or just make a TeamForge (https://usfirst.collab.net/sf/scm/do/listRepositories/projects.smartdashboard/scm) account and look at the source code? If you decompile the binary you'll lose all of the...
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Forum: Java
21-02-2016, 23:42
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Replies: 5
Views: 667
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It would be interesting to be able to take robots from multiple years and invent new games they can play together (Calvin Ball). - Mark McLeod [more] 
