[PD] Sensors2OSC mapping challenge

[katja]

Hi Max,

To emulate 3D orientation from gyro, accelerometer and compass data is
most efficiently done using a 'quaternion filter'. Sebastian Madgwick
has popularized the method, see
http://x-io.co.uk/open-source-imu-and-ahrs-algorithms/. I use
Madgwicks implementation of Mahoney's method, for Arduino based
'electronic hands', and found that Mahoney's algorithm for IMU sensors
(gyro and accelerometer only) worked much better than Madgwick's own
algorithm. But I had to make a few modifications, based on Kris
Winer's work (https://github.com/kriswiner).

Katja

On Tue, Jul 25, 2017 at 11:13 PM, Max <abonnements at revolwear.com> wrote:
> Made a quick little video
> https://vimeo.com/226958567
> the described issue is still there.
>
> Background on the problem:
> https://stackoverflow.com/questions/27106607/get-rotation-and-display-in-degrees
> https://stackoverflow.com/questions/15315129/convert-magnetic-field-x-y-z-values-from-device-into-global-reference-frame#15317814
>
>
>
> On 2017년 07월 08일 23:16, Max wrote:
>>
>> I've played around with the Android app Sensors2OSC [1] and was trying to
>> just map the senors to a virtual model of a phone.
>> I was able to get the axis individually mostly behaving correctly, but as
>> soon as the phone moves around in more than one way, it is doing weird
>> things. I started to wonder if it is only my phone though.
>>
>> At https://github.com/mxa/GemVR the patch ReceiveSensors2OSC.pd has
>> everything ready to map the senor data to the Gem model.
>>
>> I'd be curious to see if it is possible to let it behave correctly.
>>
>> [1] https://sensors2.org/osc/
>>
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