gps

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I programmatically reset and download new A-GPS data in an Android application? In other words, how do the "Manage A-GPS state" tools work in the GPS Status & Toolbox app? 回答1: You should be able to use LocationManager.sendExtraCommand(String provider, String command, Bundle extras) . This will allow you to delete all or part of the GPS data, so it will redownload it. The docs are here , but a quick rundown of the arguments, referenced from this code (for a GPS Provider): For provider , use LocationManager.GPS_PROVIDER . For command

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My code snippet is: mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); if(mLocationManager.getProvider(LocationManager.GPS_PROVIDER) != null) { mLocationManager.removeTestProvider(LocationManager.GPS_PROVIDER); } mLocationManager.addTestProvider(LocationManager.GPS_PROVIDER, "requiresNetwork" == "", "requiresSatellite" == "", "requiresCell" == "", "hasMonetaryCost" == "", "supportsAltitude" == "", "supportsSpeed" == "", "supportsBearing" == "", android.location.Criteria.POWER_LOW, android.location.Criteria

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm currently using the Dronekit-python API with MAVProxy to log attitude from a Pixhawk on an onboard computer running Linux. These measurements need to be integrated with external data for image processing, and I'm hoping to use a GPS timestamp for synchronization. The time of interest is time_utc in MAVLink message #63 (GLOBAL_POSITION_INT_COV), as documented here , and I was unable to find any GPS timestamp parameter listed in the DroneKit-Python API Reference . I'd appreciate any suggestions on retrieving the timestamp. 文章来源: GPS

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How do I programmatically find direction on a blackberry using GPS? 回答1: With GPS, the minimum resolution is aroud 3 meters. If you take consecutive GPS readings and look for significant changes in a given direction, it will give you a rough estimate of the direction of travel, and thus a probable direction the person is facing. This is not nearly as good as having a magnetic compass, which none of the Blackberries (Blackberrys?) on the market currently have. Some GPS systems have two GPS receivers placed beside each other in a known

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to set my mock location however, I am getting the following error(Provider 'gps' unknown) and not to sure what is wrong? I've got all the permission declared in my manifest.xml along with all the parameters. Mock Location Method //Initiates the method to set the phones location private void setMockLocation() { mLocationManager.removeTestProvider(LocationManager.GPS_PROVIDER); mLocationManager.addTestProvider ( LocationManager.GPS_PROVIDER, "requiresNetwork" == "", "requiresSatellite" == "", "requiresCell" == "", "hasMonetaryCost"

I have a problem which draws my back in some project for some time now. Im basically looking to trap a polygon using x,y points drawn by some script ive written. lat1,lon1 are the center gps cords of the polygon and im looking for its surrounding polygon. here is a part of my code in python: def getcords(lat1,lon1,dr,bearing): lat2=asin(sin(lat1)*cos(dr)+cos(lat1)*sin(dr)*cos(bearing)) lon2=lon1+atan2(sin(bearing)*sin(dr)*cos(lat1),cos(dr)-sin(lat1)*sin(lat2)) return [lat2,lon2] my input goes like this: lat1,lon1 - are given in decimal degrees. -dr is the angular computed by dividing the

UPDATED AT BOTTOM I have written an application that logs the users position, current speed, average speed and top speed. I would like to know how to make the application do the following things: prevent the screen from turning off while it is open on the screen if the user opens another app or returns to the home screen, gets a call etc, the app should keep collecting data (or would it be better to just write all data to a database everytime the location is updated? and maybe have a button to signify when to start and stop collecting data?) here is the code that I have written. (feel free to

1， gps_gateway.cpp:405:35: error: unused parameter 'callbacks' [-Werror,-Wunused-parameter] static int gps_init(GpsCallbacks* callbacks) clang_cflags: ["-Wno-c++11-extensions"], cflags: [ 2， gps_fake.cc:84:10: error: unused variable 'pTmp' [-Werror,-Wunused-variable] =》 "-Wno-unused-variable", 3， gps_gateway.cpp:351:13: error: unused function 'gps_tty_read_thread' [-Werror,-Wunused-function] static void gps_tty_read_thread(void * /*arg*/) =》 "-Wno-unused-function", 文章来源: android c 如何规避Wunused-parameter等警告错误