Je suis nouveau à la motion de base, et après beaucoup de recherche sans réponse satisfaisante, j'ai décidé de poster mon problème ici pour voir si quelqu'un peut m'aider. J'essaie d'obtenir l'angle de lacet du gyroscope iPhone:mises à jour de gyroscope dans le mouvement de base
motionManager = [[CMMotionManager alloc] init];
if (motionManager.gyroAvailable) {
motionManager.gyroUpdateInterval = 1.0/60.0;
[motionManager
startDeviceMotionUpdatesUsingReferenceFrame:CMAttitudeReferenceFrameXArbitraryZVertical
toQueue:[NSOperationQueue currentQueue]
withHandler: ^(CMDeviceMotion *motion, NSError *error) {
CMAttitude *attitude = motion.attitude;
NSLog(@"%f %f %f", attitude.roll, attitude.pitch, attitude.yaw);
}];
} else {
NSLog(@"No gyroscope on device.");
}
Ce code affiche des valeurs presque constantes, quelle que soit l'orientation du téléphone:
2012-02-06 17:38:29.074 test[11279:707] 0.284117 0.536363 -0.078897
2012-02-06 17:38:29.517 test[11279:707] 0.282726 0.535011 -0.079389
2012-02-06 17:38:30.145 test[11279:707] 0.281268 0.535169 -0.080593
2012-02-06 17:38:30.887 test[11279:707] 0.282435 0.543171 -0.084084
2012-02-06 17:38:31.671 test[11279:707] 0.281040 0.547520 -0.086938
2012-02-06 17:38:31.852 test[11279:707] 0.279655 0.553691 -0.090453
2012-02-06 17:38:32.512 test[11279:707] 0.279519 0.561513 -0.095231
2012-02-06 17:38:32.613 test[11279:707] 0.278557 0.567429 -0.099968
2012-02-06 17:38:32.717 test[11279:707] 0.279050 0.574920 -0.105910
2012-02-06 17:38:33.317 test[11279:707] 0.280330 0.583690 -0.112861
2012-02-06 17:38:34.086 test[11279:707] 0.281029 0.592159 -0.120220
2012-02-06 17:38:34.784 test[11279:707] 0.280887 0.599839 -0.127748
2012-02-06 17:38:35.407 test[11279:707] 0.280940 0.606983 -0.135865
2012-02-06 17:38:36.025 test[11279:707] 0.280652 0.612754 -0.144395
2012-02-06 17:38:36.651 test[11279:707] 0.279496 0.616934 -0.153258
2012-02-06 17:38:37.251 test[11279:707] 0.277919 0.619977 -0.162749
2012-02-06 17:38:37.856 test[11279:707] 0.274963 0.621073 -0.171352
2012-02-06 17:38:38.446 test[11279:707] 0.272552 0.621618 -0.179002
2012-02-06 17:38:39.086 test[11279:707] 0.269863 0.621692 -0.184768
2012-02-06 17:38:39.749 test[11279:707] 0.265449 0.620685 -0.187640
2012-02-06 17:38:40.015 test[11279:707] 0.256092 0.614860 -0.186004
2012-02-06 17:38:40.547 test[11279:707] 0.252883 0.613316 -0.186697
2012-02-06 17:38:41.314 test[11279:707] 0.237640 0.600663 -0.179584
2012-02-06 17:38:42.064 test[11279:707] 0.228467 0.593559 -0.175179
2012-02-06 17:38:42.627 test[11279:707] 0.225964 0.591553 -0.173761
2012-02-06 17:38:43.299 test[11279:707] 0.219047 0.585079 -0.169377
2012-02-06 17:38:43.857 test[11279:707] 0.213861 0.578946 -0.165632
2012-02-06 17:38:44.466 test[11279:707] 0.212410 0.575619 -0.163787
2012-02-06 17:38:45.122 test[11279:707] 0.209166 0.568359 -0.161083
2012-02-06 17:38:45.640 test[11279:707] 0.205685 0.560641 -0.158335
2012-02-06 17:38:46.196 test[11279:707] 0.203486 0.556160 -0.156266
2012-02-06 17:38:46.680 test[11279:707] 0.200355 0.548807 -0.153427
2012-02-06 17:38:47.139 test[11279:707] 0.196721 0.541516 -0.150096
2012-02-06 17:38:47.603 test[11279:707] 0.193479 0.534318 -0.146664
2012-02-06 17:38:48.953 test[11279:707] 0.190706 0.528044 -0.143307
2012-02-06 17:38:49.420 test[11279:707] 0.188027 0.521882 -0.140167
2012-02-06 17:38:49.891 test[11279:707] 0.186110 0.518000 -0.137604
2012-02-06 17:38:50.772 test[11279:707] 0.183170 0.511420 -0.134743
2012-02-06 17:38:51.235 test[11279:707] 0.180418 0.504996 -0.132144
2012-02-06 17:38:51.698 test[11279:707] 0.177734 0.498595 -0.129568
2012-02-06 17:38:52.154 test[11279:707] 0.175299 0.492050 -0.127031
2012-02-06 17:38:52.624 test[11279:707] 0.172230 0.485532 -0.124196
2012-02-06 17:38:53.081 test[11279:707] 0.170063 0.481812 -0.122000
2012-02-06 17:38:53.583 test[11279:707] 0.166253 0.476152 -0.119293
2012-02-06 17:38:54.025 test[11279:707] 0.160787 0.468770 -0.116094
2012-02-06 17:38:54.482 test[11279:707] 0.158701 0.466625 -0.114797
2012-02-06 17:38:54.940 test[11279:707] 0.155296 0.462999 -0.113401
2012-02-06 17:38:55.456 test[11279:707] 0.152151 0.460157 -0.112659
2012-02-06 17:38:55.492 test[11279:707] 0.150581 0.459592 -0.112931
2012-02-06 17:38:55.614 test[11279:707] 0.148270 0.457763 -0.112954
2012-02-06 17:38:56.004 test[11279:707] 0.147790 0.455452 -0.113850
2012-02-06 17:38:56.505 test[11279:707] 0.146853 0.455745 -0.114760
2012-02-06 17:38:56.984 test[11279:707] 0.146299 0.453550 -0.116355
2012-02-06 17:38:57.482 test[11279:707] 0.144864 0.450247 -0.118949
2012-02-06 17:38:57.949 test[11279:707] 0.141946 0.450065 -0.122539
2012-02-06 17:38:58.414 test[11279:707] 0.138981 0.448612 -0.127861
2012-02-06 17:38:59.003 test[11279:707] 0.135581 0.449638 -0.134634
2012-02-06 17:38:59.484 test[11279:707] 0.131823 0.452456 -0.142817
2012-02-06 17:39:00.034 test[11279:707] 0.127508 0.456594 -0.152322
2012-02-06 17:39:00.191 test[11279:707] 0.122910 0.462254 -0.163025
2012-02-06 17:39:00.207 test[11279:707] 0.118614 0.469168 -0.175117
2012-02-06 17:39:00.578 test[11279:707] 0.114704 0.477054 -0.188226
2012-02-06 17:39:00.616 test[11279:707] 0.110742 0.486018 -0.201588
2012-02-06 17:39:00.748 test[11279:707] 0.106248 0.495900 -0.214898
2012-02-06 17:39:01.665 test[11279:707] 0.102002 0.506241 -0.228094
2012-02-06 17:39:02.336 test[11279:707] 0.099557 0.514980 -0.239528
2012-02-06 17:39:02.407 test[11279:707] 0.098438 0.520571 -0.247081
2012-02-06 17:39:02.495 test[11279:707] 0.097672 0.523262 -0.250384
2012-02-06 17:39:02.552 test[11279:707] 0.097222 0.524001 -0.250785
2012-02-06 17:39:02.922 test[11279:707] 0.097418 0.523620 -0.249829
2012-02-06 17:39:03.414 test[11279:707] 0.099227 0.521513 -0.249166
2012-02-06 17:39:03.929 test[11279:707] 0.101716 0.519924 -0.249055
2012-02-06 17:39:04.679 test[11279:707] 0.102946 0.519034 -0.248954
2012-02-06 17:39:05.250 test[11279:707] 0.104410 0.518250 -0.250017
2012-02-06 17:39:05.339 test[11279:707] 0.105101 0.518529 -0.251809
2012-02-06 17:39:05.414 test[11279:707] 0.103954 0.517553 -0.253460
2012-02-06 17:39:05.834 test[11279:707] 0.102850 0.517375 -0.255460
2012-02-06 17:39:05.853 test[11279:707] 0.100568 0.516271 -0.256589
2012-02-06 17:39:05.871 test[11279:707] 0.096929 0.513702 -0.256523
2012-02-06 17:39:06.405 test[11279:707] 0.092045 0.510893 -0.255013
2012-02-06 17:39:07.029 test[11279:707] 0.086092 0.507567 -0.252255
2012-02-06 17:39:07.538 test[11279:707] 0.081380 0.504508 -0.249655
2012-02-06 17:39:08.699 test[11279:707] 0.074794 0.500937 -0.246108
2012-02-06 17:39:10.308 test[11279:707] 0.068511 0.497140 -0.243295
2012-02-06 17:39:10.469 test[11279:707] 0.063528 0.493209 -0.241749
2012-02-06 17:39:11.196 test[11279:707] 0.057956 0.487372 -0.240436
2012-02-06 17:39:11.328 test[11279:707] 0.053526 0.481475 -0.240096
2012-02-06 17:39:11.342 test[11279:707] 0.049141 0.475907 -0.239913
2012-02-06 17:39:12.003 test[11279:707] 0.044934 0.470173 -0.239304
2012-02-06 17:39:12.643 test[11279:707] 0.041000 0.464876 -0.238245
2012-02-06 17:39:12.738 test[11279:707] 0.037876 0.461354 -0.237112
2012-02-06 17:39:12.786 test[11279:707] 0.034908 0.458204 -0.235784
2012-02-06 17:39:13.987 test[11279:707] 0.032735 0.456382 -0.234687
2012-02-06 17:39:14.130 test[11279:707] 0.031751 0.454415 -0.234166
2012-02-06 17:39:14.201 test[11279:707] 0.030873 0.452816 -0.233771
2012-02-06 17:39:14.608 test[11279:707] 0.031080 0.450683 -0.233894
2012-02-06 17:39:15.214 test[11279:707] 0.030725 0.447874 -0.233945
2012-02-06 17:39:16.000 test[11279:707] 0.031100 0.444689 -0.234371
2012-02-06 17:39:16.567 test[11279:707] 0.031405 0.440659 -0.234729
2012-02-06 17:39:17.143 test[11279:707] 0.030912 0.436343 -0.234610
2012-02-06 17:39:17.802 test[11279:707] 0.029276 0.432026 -0.233608
2012-02-06 17:39:18.601 test[11279:707] 0.026838 0.428396 -0.232015
2012-02-06 17:39:18.714 test[11279:707] 0.024792 0.425108 -0.230611
2012-02-06 17:39:19.335 test[11279:707] 0.022407 0.421895 -0.229250
2012-02-06 17:39:20.006 test[11279:707] 0.020278 0.418510 -0.228097
2012-02-06 17:39:20.920 test[11279:707] 0.018179 0.414834 -0.227015
2012-02-06 17:39:21.818 test[11279:707] 0.016243 0.410729 -0.225862
2012-02-06 17:39:21.954 test[11279:707] 0.014359 0.406511 -0.224585
2012-02-06 17:39:22.119 test[11279:707] 0.012452 0.402080 -0.223064
2012-02-06 17:39:22.614 test[11279:707] 0.010601 0.397233 -0.221162
2012-02-06 17:39:22.692 test[11279:707] 0.008699 0.392451 -0.218747
2012-02-06 17:39:22.818 test[11279:707] 0.007168 0.388804 -0.216152
2012-02-06 17:39:23.190 test[11279:707] 0.005118 0.384335 -0.213227
2012-02-06 17:39:23.658 test[11279:707] 0.002705 0.380201 -0.210206
2012-02-06 17:39:24.124 test[11279:707] 0.001094 0.377416 -0.207627
2012-02-06 17:39:24.607 test[11279:707] -0.002178 0.373076 -0.204743
2012-02-06 17:39:25.117 test[11279:707] -0.004245 0.369853 -0.202551
2012-02-06 17:39:25.669 test[11279:707] -0.005570 0.367699 -0.200901
2012-02-06 17:39:26.279 test[11279:707] -0.006612 0.364938 -0.199402
2012-02-06 17:39:26.483 test[11279:707] -0.007071 0.362445 -0.197858
2012-02-06 17:39:26.514 test[11279:707] -0.006780 0.360407 -0.196251
2012-02-06 17:39:27.038 test[11279:707] -0.006128 0.359039 -0.194405
2012-02-06 17:39:27.605 test[11279:707] -0.005377 0.358899 -0.192268
2012-02-06 17:39:28.153 test[11279:707] -0.003901 0.359926 -0.190265
2012-02-06 17:39:28.751 test[11279:707] -0.002602 0.361514 -0.188276
2012-02-06 17:39:29.318 test[11279:707] -0.001312 0.363152 -0.186416
2012-02-06 17:39:29.886 test[11279:707] 0.000524 0.364863 -0.184941
2012-02-06 17:39:30.436 test[11279:707] 0.002012 0.366129 -0.183612
2012-02-06 17:39:31.009 test[11279:707] 0.004049 0.366699 -0.182729
2012-02-06 17:39:31.605 test[11279:707] 0.005820 0.367657 -0.181845
kill
quit
Je ne sais pas pourquoi ce est en train de se produire, car en théorie il devrait me donner des nombres en radians (pi/2 étant la valeur maximale, environ 1,57).
Merci d'avoir lu.
aa