From Forum Nokia Wiki

ID	CS001410	Creation date	June 9 2009
Platform	S60 3rd Edition S60 5th Edition	Tested on devices	Nokia 5800 XpressMusic
Category	Symbian C++	Subcategory	Location Based Services

Keywords (APIs, classes, methods, functions): TCoordinate

Overview

The snippet demonstrates how to calculate the distance between two coordinates.

Note: The location capability is included in the self-signing capabilities of S60 3rd Edition, Feature Pack 2 and newer platforms.

MMP file

The following libraries and capabilities are required:

LIBRARY        lbs.lib

Header

#include <LbsPosition.h>
 
public:
    TReal32 CalculateDistanceL(const TCoordinate& aFrom, const TCoordinate& aTo);

Source

TReal32 CLocation::CalculateDistanceL(const TCoordinate& aFrom, const TCoordinate& aTo) 
    {
    TReal32 result;
    aFrom.Distance(aTo,result);
    return result;
    }

How to use

TCoordinate you;
 
// Friend coordinates
TCoordinate friend;
 
// Calculate distance    
TReal32 ret = CalculateDistanceL(you,friend);
 
// Distance in meters
TBuf<50> distance;
distance.Format(_L("%.1f"), ret);
distance.Append(_L(" m "));

Postconditions

The distance between you and your friend is calculated.