Mecanum Single Joystick Control not working

[Ether]

Originally Posted by pastelpony

Correct me if I'm wrong, but I've been reading that the default mecanum code in the WPI library actually takes the incorrect inputs by default.

Would you please post a link to where you've been reading that?

I don't have access to LabVIEW to inspect its code, but here's the inverse kinematics code taken straight from 2015 WPILib RobotDrive.Java:

wheelSpeeds[MotorType.kFrontLeft_val] = xIn + yIn + rotation;
   
wheelSpeeds[MotorType.kFrontRight_val] = -xIn + yIn - rotation;
      
wheelSpeeds[MotorType.kRearLeft_val] = -xIn + yIn + rotation;
      
wheelSpeeds[MotorType.kRearRight_val] = xIn + yIn - rotation;

I'm not a Java guru, but it looks correct to me.