Can anyone help me "How to calculate distance between two places in MAP(CLLocation).Tell the delegates,methods etc to be used .
Thanks in advance,
BrightRaj
Does this help?
distanceFromLocation - Calculate distance between two points
You can use this method in CLLocation that takes another CLLocation object and returns the distance in meters:
- (CLLocationDistance)distanceFromLocation:(const CLLocation *)location
Be aware that it's available only in iOS ≥3.2. If you wanna target older iOS versions, use
- (CLLocationDistance)getDistanceFrom:(const CLLocation *)location
This method is marked as deprecated and will disappear at some time in the future.
Related
I've developed an iPhone application to parse data from an XML file. This data contains a set of longitudes and latitudes for different places.
How do I detect nearest of them according to my current location on the map and how do I set set a range to show places in this range?
CLLocation *myLocation = [[CLLocation alloc] initWithLatitude:myLatitude longitude:myLongitude];
CLLocation *myXmlLocation = [[CLLocation alloc] initWithLatitude:xmlLatitude longitude:xmlLongitude];
CLLocationDistance distance = [myLocation distanceFromLocation: myXmlLocation];
This is in meters, so you must do any converting from there. They are also linear, so these aren't driving direction lengths by any means. Good luck.
some trig, but really not too difficult.
this page has an example script, not in your language, but it contains explainations and the equations you need.
http://www.movable-type.co.uk/scripts/latlong.html
and also, please don't write run-on sentences, it took me a while to read your question.
#Vinnie said is absolutely right but these values is air distance.
Also this method is deprecated in iOS 3.2
- (CLLocationDistance)getDistanceFrom:(const CLLocation *)location Parameters
You can't find the distance based on roads with the Apple SDK. Try to use google APIs for finding distance between two points on earth on roads.
In my iPhone application I allow the user to choose a destination on the map, then when he starts driving toward the destination I want to give him information like: how long until he reaches the destination and what its current distance from the destination. I'm using CloudMade maps SDK for iPhone and i know there is an API method to get a path between two point that returns also the time and distance between them. Is it OK to call this method every time i get a new location from the CLLocationManager to get the updated time and distance? I assume this method query the CloudMade servers so i don't know if calling it a lot of time is the best way to do this..
For distance
/*
* distanceFromLocation:
*
* Discussion:
* Returns the lateral distance between two locations.
*/
- (CLLocationDistance)distanceFromLocation:(const CLLocation *)location __OSX_AVAILABLE_STARTING(__MAC_10_6,__IPHONE_3_2);
For getting the time needed, you could calculate it yourself. CLLocation has a speed parameter. Use the distance and the speed to calculate time.
Swift version would be:
var startLocation:CLLocation!
var lastLocation: CLLocation!
let distance = startLocation.distanceFromLocation(lastLocation)
I have create a program to find out my current location using IOS corelocation framework.It works fine.
I need to create a program that list nearest branchaes of a shop chain, while a user travel with the phone.My data base contains the branches details with Latitude and lognitude.How i compare with these details to find out the nearest branch.
Help is highly appreciated.Anybody knows any example program
Thanks,
VKS
You can make use of distanceFromLocation: method of CLLocation.
distanceFromLocation:
Returns the distance (in meters) from the receiver’s location to the
specified location.
(CLLocationDistance)distanceFromLocation:(const CLLocation
*)location
Parameters
location
The other location.
Return Value
The distance (in meters) between the two locations.
Discussion
This method measures the distance between the two locations by tracing
a line between them that follows the curvature of the Earth. The
resulting arc is a smooth curve and does not take into account
specific altitude changes between the two locations.
Availability
Available in iOS 3.2 and later.
By using this method to get the distances of the shops with your current location, you can then sort the list based on the distance to get the nearest branch
VKS, I got to solve the exact same problem too now (using apptarget iOS 5). Do you have any example code / snippets / tips to share for this problem, that I assumed you solved a long time ago? The above is very good explanation from 7KV7, but some examples will speed up my process a lot. Thank's :-)
I'm trying to calculate the distance between two places user Core Location. I've found a few posts that state to use
-(CLLocationDistance)distanceFromLocation:(const CLLocation *)location
Found some other test code in the thread below:
CLLocationDistance NaN
I'm not sure how to put it all together, to get the result I want ?
Anyone any thoughts ?
Regards,
Stephen
If you have a location named myLocation and want to find the distance from another location, say, restaurantLocation, then it seems you would do something like
CLLocationDistance distance = [myLocation distanceFromLocation:restaurantLocation]
This will give you the distance, in meters, between the two.
How can I get the latitude and longtitude from mapView.userLocation?
I need that to get the distance between userLocation and another point on the map.
I hope you can help me and thank you beforehand!
Use the method provided in CLLocation:
- (CLLocationDistance)getDistanceFrom:(const CLLocation *)location