Differences
This shows you the differences between two versions of the page.
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projs:actcat:home [2011/07/19 16:32] zfy7113639 |
projs:actcat:home [2011/07/19 18:07] (current) zfy7113639 |
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| Sensor attributes | Sensor attributes | ||
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| Location <CLLocation> | Location <CLLocation> | ||
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| For latitude, the range should be [-90(south pole), 90(north pole)]. | For latitude, the range should be [-90(south pole), 90(north pole)]. | ||
| For longitude, the range should be [-180(west of the prime meridian), 180(east of the prime meridian)] | For longitude, the range should be [-180(west of the prime meridian), 180(east of the prime meridian)] | ||
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| + | course: | ||
| + | Course values are measured in degrees starting at due north and continuing clockwise around the compass. Thus, north is 0 degrees, east is 90 degrees, south is 180 degrees, and so on. Course values may not be available on all devices. A negative value indicates that the direction is invalid. | ||
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| + | horizontalAccuracy | ||
| + | The radius of uncertainty for the location, measured in meters. | ||
| + | The location’s latitude and longitude identify the center of the circle, and this value indicates the radius of that circle. A negative value indicates that the location’s latitude and longitude are invalid. | ||
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| + | speed:The instantaneous speed of the device in meters per second. | ||
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| + | time:The time at which this location was determined. | ||
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| + | verticalAccuracy:The accuracy of the altitude value in meters. The value in the altitude property could be plus or minus the value indicated by this property. A negative value indicates that the altitude value is invalid. | ||
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| + | Accelerometer <UIAccelerometer> | ||
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| + | x, y, z: the accelerometer for the device in triple direction | ||
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| + | timestamp:The relative time at which the acceleration event occurred. | ||
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| ===== Telemetry Mining ===== | ===== Telemetry Mining ===== | ||
