2014/10/15 下午 10:03:29

iphone Programming Glossary: accelerometers

http://stackoverflow.com/questions/1994018/measuring-velocity-via-iphone-sdk

don't actually care about GPS location it is battery intensive. The other obvious option to explore would be using the accelerometers to try and calculate speed but there is nothing in the API to help you do so. Based on my research it should be possible..

Gyroscope vs Accelerometer?

http://stackoverflow.com/questions/3089917/gyroscope-vs-accelerometer

Play sound with screen turned off / don't let iPhone go to sleep

http://stackoverflow.com/questions/4267466/play-sound-with-screen-turned-off-dont-let-iphone-go-to-sleep

iPhone to go to sleep mode it just turned off the screen and maybe things like wifi or bluetooth and on the iPod Touch accelerometers as far as I remember . And it worked. I wanted to use the same trick in my new application but when I was testing it now..

Fast, very lightweight algorithm for camera motion detection?

http://stackoverflow.com/questions/4393841/fast-very-lightweight-algorithm-for-camera-motion-detection

object recognizer when the user is actually moving the camera around. My first thought was to simply use the iPhone's accelerometers gyroscope but in testing I found that very often people would move the iPhone at a consistent enough attitude and velocity..

iPhone - What does the gyroscope measures? Can I get an absolute degree measurement in all axis?

http://stackoverflow.com/questions/5112536/iphone-what-does-the-gyroscope-measures-can-i-get-an-absolute-degree-measurem

position it was when the sampling started. thanks iphone core motion share improve this question The iPhone uses accelerometers for its internal angle measurements which means they are relative to the Earth's gravity. That's about as absolute as you're..

iOS: Movement Precision in 3D Space

http://stackoverflow.com/questions/5550453/ios-movement-precision-in-3d-space

Distance moved by Accelerometer

http://stackoverflow.com/questions/6645126/distance-moved-by-accelerometer

in the video. Similar questions track small movements of iphone with no GPS What is the real world accuracy of phone accelerometers when used for positioning how to calculate phone's movement in the vertical direction from rest iOS Movement Precision in..