Get coordinates from random places on a map

[atenasjeb]

I just want to use google maps framework to get the map in my app and from the map just put a pin in a random place (of my choice) and take its coordinates.

How can i do this? The important thing is a way to get the coordinates of a random place.

Thank you very much.

[Chobie]

Why not just generate a random number between the range of a valid lat and long.

int lat =  (arc4random() % 180) - 90;
int long = (arc4random() % 360) - 180;

Remember that lat's range is -90 to 90 and long is -180 to 180.

It is also possible to get arc4random to return a floating point precision value if you so fancy but I think the above solution is more than enough for your needs.

[atenasjeb]

Originally Posted by Chobie

Why not just generate a random number between the range of a valid lat and long.

int lat =  (arc4random() % 180) - 90;
int long = (arc4random() % 360) - 180;

Remember that lat's range is -90 to 90 and long is -180 to 180.

It is also possible to get arc4random to return a floating point precision value if you so fancy but I think the above solution is more than enough for your needs.

First of all, thank you for your fast answer.

Maybe I wasn't clear enough with my problem. What I need is to click in the map to get the coordinates of the clicked position. What I meant with "random" was any position in the map different from mine.

Sorry for not being clear, I'll make this thing clear in the first post.

[Chobie]

Originally Posted by atenasjeb

First of all, thank you for your fast answer.

Maybe I wasn't clear enough with my problem. What I need is to click in the map to get the coordinates of the clicked position. What I meant with "random" was any position in the map different from mine.

Sorry for not being clear, I'll make this thing clear in the first post.

What you need then is MKMapView convertPoint:toCoordinateFromView: method. You can listen to when a user touches the frame and then call the above method to return the coordinates.

A quick google gives me this which might be a good start for you, however I recommend handling the touch off instead of their solution which calls the method everytime the user touches the screen! Get the coordinates of a point from mkmapview on iphone - Stack Overflow