Hello,
I'm trying to track the angular movement of a phone in Android.
For example, if the user rotated the phone upwards (pitched) it by 90
degrees, then rolled it by 180 degrees and then pitched it again by
-90 degrees (in the frame of reference of the phone), the output
should say - "Total yaw = 0, total pitch = 0, total roll = 180".
In another scenario, if the user starts from the same initial position
and makes a yaw movement of 180 degrees, the final position of the
phone will be same as the one in the above scenario, though the output
will say "0 roll, 0 pitch and 180 yaw."
I'm trying to use SensorEvent to get orientation values. The problem
I'm facing is, that if the phone is held at a tilted angle and then a
roll or a pitch movement is made, the value of "yaw" returned by the
phone also changes. Similarly, if a make a yaw movement, the pitch and
roll values returned also change. Therefore, I am unable to pinpoint
whether any particular movement made is a yaw, pitch or a roll
movement.
I understand that this problem could be solved very simply through
some mathematics, but I am unable to find a good starting point. It
would be great if someone could point me in the right direction ?
Thanks
Abhinav
I'm trying to track the angular movement of a phone in Android.
For example, if the user rotated the phone upwards (pitched) it by 90
degrees, then rolled it by 180 degrees and then pitched it again by
-90 degrees (in the frame of reference of the phone), the output
should say - "Total yaw = 0, total pitch = 0, total roll = 180".
In another scenario, if the user starts from the same initial position
and makes a yaw movement of 180 degrees, the final position of the
phone will be same as the one in the above scenario, though the output
will say "0 roll, 0 pitch and 180 yaw."
I'm trying to use SensorEvent to get orientation values. The problem
I'm facing is, that if the phone is held at a tilted angle and then a
roll or a pitch movement is made, the value of "yaw" returned by the
phone also changes. Similarly, if a make a yaw movement, the pitch and
roll values returned also change. Therefore, I am unable to pinpoint
whether any particular movement made is a yaw, pitch or a roll
movement.
I understand that this problem could be solved very simply through
some mathematics, but I am unable to find a good starting point. It
would be great if someone could point me in the right direction ?
Thanks
Abhinav