Hey,
I've got a problem with mesuring distance between two locations.
One of them is my location:

Second location i want to create myself. To test it i simply went to that place checked what curLocation.getLatitude() and curLocation.getLongitude() will give me. Then i set some coordinates for a new location:



I try to count it in many ways like this:


or this:


or this:


or this:


All of this algorithms and methods are giving me a bad results - instead of eg.50m or 0,050 km it gives me something like 620, 4040104102 etc.

Can someone help me how to fix it?

Welcome mess,

Do all four of your distance methods return the same result of

something like 620, 4040104102 etc.

If so, there are two things I can think of:

1. Perhaps you are misinterpreting the value you are getting, and it actually reflects the value you expect.
-or-
2. Perhaps your assumptions are incorrect, that is, the distance between the points isn't actually 50 meters.

Could you please post the values of both Location objects' latitude and longitude? Perhaps I, or someone else here, could help you out some more if you need it.

Good luck!
-Nick

check location.getaccuracy()
and try to invert lat on longitude maybe a mistake.
if accuracy is high it's possible it's have some trouble

Do all four of your distance methods return the same result of
Quote:
something like 620, 4040104102 etc.

Nope it returns different numbers: eg. loc2.distanceTo(loc1) returns 42900.082

Could you please post the values of both Location objects' latitude and longitude? Perhaps I, or someone else here, could help you out some more if you need it.

double lat1 = curLocation.getLatitude(); // eg. 20.949828028678894
double long1 = curLocation.getLongitude(); // eg. 52.28138744831085
double lat2 =20.9499192237854;
double long2 =52.26164494037628;

check location.getaccuracy()
and try to invert lat on longitude maybe a mistake.
if accuracy is high it's possible it's have some trouble

loc1.getaccuracy() // eg.16 or 24 ..
loc2.getaccuracy() // eg.16 or 24 ..


I dont know, maybe problem is with creating 1 of the locations, I get the coordinates from other program and i need to make object Location with those coords- is this code ok ?

accuracy seem look good.


try this and it's return what?

rafffel wrote:accuracy seem look good.

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Using java Syntax Highlighting

1. double lat1 = 20.949828028678894;
2. double long1 = 52.28138744831085;
3. double lat2 =20.9499192237854;
4. double long2 =52.26164494037628;
5.  
6.  
7. Location loc1 = new Location("location1");
8. loc1.setLatitude(lat1);
9. loc1.setLongitude(long1);
10. Location loc2 = new Location("location2");
11. loc2.setLatitude(lat2);
12. loc2.setLongitude(long2);
13.  
14. loc1.distanceTo(loc2);
15.  

Parsed in 0.037 seconds, using GeSHi 1.0.8.4

try this and it's return what?

2053.3457



also:

It's correct values.

it's on meter distance betwen loc 1 and 2 is 2km.

i don't know why it's buggy i think control youre fix location .

and the other one ?

loc1.distanceTo(loc2) // 4398272,0

should be like 20 m... not 4398272,0

i think you have inverted lat1 and long1

Doesn't Google Maps have its own function to return the distance between two geopoints, or am I thinking of Google Earth?