I made a simple app which displays the altitude according to the GPS position on iPhone. How is the altitude obtained? Does it get the altitude of the land at the coordinates I am or does it get...

Does anyone know if there is a tool in R to find the height above sea level of a location, given the latitude and longitude ?

I've been trying to implement a feature to get the correct altitude based on the barometer sensor from Android Galaxy S5 phones. The only problem is, I don't think it is accurate. Based on http://w...

I need to get an accurate measurement of altitude using GPS only. I tried Location.getAltitude(), but that is terribly inaccurate. Any advice?

What are the data needed for calculating barometric altitude? How do I get them and then calculate the altitude? Also how accurate is the barometric compared to GPS altitude? I tried GPS but afte...

I understand the concept of negative for below sea levels and positive for above + there is vertical accuracy to check the sanity of this value. I am interested in GPS data in a flight. What could...

G'day Everyone, I am trying to get some elevation data for about 700 points I have. I thought I might use the code provided to the same question (Conversion for latitude/longitude to altitude in R...

I have this following code : public SensorEventListener sensorEventListener = new SensorEventListener() { @Override public void onSensorChanged(SensorEvent event) { float pressure_value = 0.0f;...

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 acc...

I've been having trouble finding a way to get the altitude of the device. Could someone give me a pointer or put together a short script that gets the altitude of the device and prints it? Only in ...

I have been using a Samsung Galaxy S3 to work on an app that uses the barometer estimate the user's altitude. I use SensorManager.getAltitude(p0, p), and set p0 equal to the sea-level pressure repo...

UPDATE: using the sample from here - http://code.msdn.microsoft.com/wpapps/Location-sample-f11aa4e7 and adding an altitude readout I get the same thing as my code. Poor accuracy is being off by 50f...

I have application using Android 2.1 which utilize LocationManager to get the altitude. But now, I need to obtain the altitude using SensorManager which requires API Level 9 (2.3). How can I put t...

I tried to find how to get the altitude above the mean sea level. At this time, it returns altitude from the ellipsoid. So, anyone knows the formula or calculation to change the altitude value fro...

I'm testing an Android app that records the location (lat/long/alt). I'm running the app on a Samsung GTS5830 phone running Android 2.2.1 I read here and there that GPS altitude is often incorrec...

Prior to iOS 4.0, CoreLocation was reporting altitude correctly, now it always reports as 0 ft. -(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation*)newLocation fro...

I have a location service app, in which the user's elevation is provided. I have found, though, that the elevation accuracy provided by the CLLocationManager is extremely inaccurate. When I test th...