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Nov 27, 2023 at 2:39 answer added MarkH timeline score: 0
Dec 23, 2014 at 16:04 vote accept Aleksandar Vacic
Dec 23, 2014 at 12:52 answer added CuriousOne timeline score: 3
Dec 23, 2014 at 11:26 comment added Aleksandar Vacic I read through the question linked by @tom and found lots of comments by CuriousOne as well. I'm trying to figure through all of that, but it makes my head spin. Using only acceleration (which is also in x,y,z) seems as not enough since user can hold the phone in hand and swing in various ways during the run. Thus I am looking for formula that will also take rotationRate and attitude to account for those movements and allow me to draw trajectory in some fictional 3D space.
Dec 23, 2014 at 11:23 comment added Aleksandar Vacic @CuriousOne I linked up to relevant parts of docs and that's all there is. Apple describes what's there, but it's up to devs to figure out how to use the data.
Dec 23, 2014 at 9:45 comment added tom this may be a duplicate of physics.stackexchange.com/questions/153159/… -see if that question/answer is helpful for you....
Dec 23, 2014 at 2:31 comment added CuriousOne This should be well documented by Apple, otherwise the API would be useless. The Pedometer, of course, is basically just counting steps and it can guestimate the step size from the short time acceleration data. Would I rely on it for any application more important than a health tracker? Hell no. The good news is that a health tracker is not an important application for any purpose.
Dec 22, 2014 at 23:26 comment added David Z A suggestion: it's no use to talk about CMDeviceMotion or the CoreMotion APIs because this is a physics site and you can't expect people here to know anything about them. The way you've described other attributes in terms of what they physically mean is good.
Dec 22, 2014 at 23:07 review First posts
Dec 22, 2014 at 23:18
Dec 22, 2014 at 23:04 history asked Aleksandar Vacic CC BY-SA 3.0