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Detect iOS compass heading

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iOS webkit does not provide an absolute alpha, instead it provides
webkitCompassHeading.
This commit is contained in:
Paul Spencer
2013-09-07 21:48:49 -04:00
parent cc11efa420
commit 69872c99d2
1 changed files with 3 additions and 0 deletions
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src/ol/deviceorientation.js
+3
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@@ -122,6 +122,9 @@ ol.DeviceOrientation.prototype.orientationChange_ = function(browserEvent) {
// event.absolute is undefined in iOS. // event.absolute is undefined in iOS.
if (goog.isBoolean(event.absolute) && event.absolute) { if (goog.isBoolean(event.absolute) && event.absolute) {
this.set(ol.DeviceOrientationProperty.HEADING, alpha); this.set(ol.DeviceOrientationProperty.HEADING, alpha);
} else if (goog.isDefAndNotNull(event.webkitCompassHeading)) {
var heading = goog.math.toRadians(event.webkitCompassHeading);
this.set(ol.DeviceOrientationProperty.HEADING, heading);
} }
} }
if (goog.isDefAndNotNull(event.beta)) { if (goog.isDefAndNotNull(event.beta)) {