Accessing barometer data from Lumia 1020

Apparently the Lumia 1020 has a barometer. See the "Extra Features" section in the link below.

http://developer.nokia.com/Devices/Device_specifications/Lumia_1020/

I would like to know how to access elevation data directly from the barometer. Right now I have access to elevation data from the Geolocator object in the Windows.Devices.Geolocation namespace, but it's giving me back elevation from the GPS signal, not from the barometer. I know this because the Geolocator object's Altitude property varies by tens of meters while at constant elevation over a period of minutes while the phone is just sitting on the table. The barometer should vary on the order of centimeters.

Any ideas? Perhaps it will just be a matter of time before we can see an update in the Windows Phone SDK?

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The Galaxy Nexus has a barometer too, but it's only used to feed a known piece of data into the GPS to obtain a lock faster (one less variable to solve for). It is completely unavailable for any other use. I suspect that it's the same for this device. Why would you need barometer altitude when you have GPS?

Here's a reference for the Nexus: http://www.engadget.com/2011/10/20/galaxy-nexus-barometer-explained-sam-champion-not-out-of-a-job/

Well... "It's there, why not make it available?" was my question when I learned of this.

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你可以在这里找到关于气压计的信息，但是因为我知道只有在Visual Studio 2015 CTP 6中可用的API。你可以在github上找到示例项目

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Seems like it can't be accessed by the Windows Phone 8 API and is apparently only used to feed the GPS data to speed up detection: http://social.msdn.microsoft.com/Forums/wpapps/en-US/510c700e-85a2-49e2-9861-1c35b4714403/how-to-access-barometer-sensor-of-lumia-1020?forum=wpdevelop

Here's a list of the supported sensors for Windows Phone 8 API: http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh202968%28v=vs.105%29.aspx

链接地址: http://www.djcxy.com/p/73128.html

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