What you should be seeing is a truncated circle, running a small piece of code like this.
vex::brain Brain;
vex::controller c1;
int main() {
int count = 0;
while(1) {
Brain.Screen.printAt( 10, 50, "Hello V5 %d", count++ );
printf("%d %d\n", c1.Axis3.position(), c1.Axis4.position() );
// Allow other tasks to run
this_thread::sleep_for(50);
}
}
gives data that can be easily plotted, here is the result from a controller I have.
