By clicking “Post Your Answer”, you agree to our To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This is not due to lag. Maps SDK for Android Maps SDK for iOS Maps Static API ... Elevation data is available for all locations on the surface of the earth, including depth locations on the ocean floor (which return negative values). composition, fiction-writing, and zine-making at various institutions. Thanks. By using the pressure you can calculate the user's altitude. This wikiHow teaches you how to find the elevation of a Google Maps location on an Android phone or tablet.

There are actually 5 different ways that Google Earth measures altitude: Clamped to ground Clamped to sea floor Relative to ground Relative to sea floor Absolute For more information on these, check out the post at this link.

The altitude updates as you move your mouse. Impossible with GPS.

Touren und Karten erstellen. If you really can’t stand to see another ad again, then please We use cookies to make wikiHow great.

It is a very smooth, very precise curve.

The Elevation Profile tool allows you to create a path, and display its elevation profile. It's the map icon typically found on the home screen or in the app drawer. I know a lot of apps do it that way and developers stumble upon this type of threads that make them think that calculating altitude is as easy as that, and it contributes to the large ecosystem of apps that pretend you're at a certain altitude while you're not. At the top, tap Search . The Overflow Blog

Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Sie können komplexe geografische Inhalte erkunden, bereits besuchte Orte speichern und diese mit anderen Nutzern teilen. See this answer: You've said that from the last 4 altitude readings, you've computed the average but this is for a single location? Pick elevation from any point on the map. So in that case, 100 m make a difference of 10 hPa.The highest point is 550 m, with a measured pressure of 1007.765 hPa.Ending point is the same height, and the exact same pressure as the starting conditions (the pressure could have varied due to the weather conditions, but it didn't).

@ben while you're right with what you say, taking the pressure as a helper, calibrating it every couple of minutes with the GPS measurement when you have a really good fix, is the best thing you can do. The temperature dropped around 1°C, so it was all pretty constant.The black line containing the many variations is the altitude measured via GPS, the mirrored, but clean line, is the barometric pressure. If there were a way within GPS Essentials to adjust altitude to the starting point (AGL) and have that be what is imported into Google Earth the problem would be solved, but meanwhile I am looking for another solution. Join over 260,000 subscribers!Very well explained? It places the feature on the bottom of any major body of water; if the feature is located away from a body of water, the feature will be clamped to the ground level, instead.Measures the altitude from the ground level directly below the coordinates.As an example, this altitude mode can be used to place the tops of powerline poles as they climb up and over a hill. For example you can measure the altitude by the airplane you are sitting in with a barometer. This is all dependent on the use case, and throwing 1 sensor out the door as useless is the wrong approach.this works in theory but if you do enough testing you will notice highly variable and inaccurate results. share | improve this answer | follow | edited May 23 '17 at 12:17. I just added an answer which points this out. Starting point and end point are the same at around 477 m above sea level, determined via GPS.

In this way, GroundOverlays can, for example, be 'draped' over the surface of the Earth. Auf der Karte zeichnen.

It requires access to your device location to get raw altitude from the GPS signal. At that point you fetch the barometric pressure and set that pressure as a reference.When the pressure increases around 12 hPa, you will know that your altitude decreased by around 100 m ( Don't take that value as an exact, but variations in the altitude determined by GPS vary a lot due to trees covering the line of sight and other factors, while the barometer will remain very precise under those conditions.The following graph is a bike ride of around one hour and 20 minutes in duration.

I need to get an accurate measurement of altitude using GPS only.There are two issues with using altitude of a smartphone / tablet GPS:So, simply create a listener to NMEA-strings for your LocationManager and parse the messages: You can either replace the altitude of the last Location object received through a location listener, or parse the whole new location through NMEA.

Warning you in advance that it is more complicated than calling a single API with a set of lat-long coordinates and getting back a height. Additionally, Google Earth displays location elevation wherever your cursor is on the map. answered Jan 25 '13 at 20:39. When terrain is off, Google Earth’s eye altitude represents AGL (Above Ground Level). You can find the current cursor elevation in the lower right corner. You can turn terrain on and off in Tools – Options. This will create a darker area on the Elevation Profile, meaning you’ve successfully isolated the desired path section.In this view, the ribbon displays updated metrics and the red arrow on the map moves to the selected highest point. Stack Overflow for Teams is a private, secure spot for you and
There are other ways to get the altitude than by GPS. By using our site, you agree to our Include your email address to get a message when this question is answered.

I'll try to confirm the "100s of feet difference very frequently" during the next couple of months.