如何在Jedis中使用SCAN命令(How to use SCAN commands in Jedis)

 PhoneGap Docs 
 
 
 
 指南针是一种传感器，用于检测设备指向的方向或方向。 它以从0到359.99的度数来衡量标题。 
 
 
 使用compassSuccess回调函数通过CompassHeading对象返回指南针标题信息。 
 
 
function onSuccess(heading) {
    alert('Heading: ' + heading.magneticHeading);
};

function onError(error) {
    alert('CompassError: ' + error.code);
};

navigator.compass.getCurrentHeading(onSuccess, onError);
 
 如果您想访问手机的x，y或z轴的旋转角度，您可以简单地使用裸机HTML5。 这里有一篇关于它的伟大文章： 这最后：使用设备方向 
 
 代码示例： 
 
  window.addEventListener('deviceorientation', function(eventData) {
// gamma is the left-to-right tilt in degrees, where right is positive
var tiltLR = eventData.gamma;

// beta is the front-to-back tilt in degrees, where front is positive
var tiltFB = eventData.beta;

// alpha is the compass direction the device is facing in degrees
var dir = eventData.alpha

// deviceorientation does not provide this data
var motUD = null;

// call our orientation event handler
deviceOrientationHandler(tiltLR, tiltFB, dir, motUD);
}, false);
 

PhoneGap Docs
 
 
 
The compass is a sensor that detects the direction or heading that the device is pointed. It measures the heading in degrees from 0 to 359.99.
 
 
The compass heading information is returned via a CompassHeading object using the compassSuccess callback function.
 
 
function onSuccess(heading) {
    alert('Heading: ' + heading.magneticHeading);
};

function onError(error) {
    alert('CompassError: ' + error.code);
};

navigator.compass.getCurrentHeading(onSuccess, onError);
 
If you want to access the rotation-degrees of the x,y or z axis of the Phone you can simply use bare HTML5. Here is a great article about it: THIS END UP: USING DEVICE ORIENTATION
 
Code example: 
 
  window.addEventListener('deviceorientation', function(eventData) {
// gamma is the left-to-right tilt in degrees, where right is positive
var tiltLR = eventData.gamma;

// beta is the front-to-back tilt in degrees, where front is positive
var tiltFB = eventData.beta;

// alpha is the compass direction the device is facing in degrees
var dir = eventData.alpha

// deviceorientation does not provide this data
var motUD = null;

// call our orientation event handler
deviceOrientationHandler(tiltLR, tiltFB, dir, motUD);
}, false);