public void update(Location curGPSFix) {
// An elevation of 0.0 probably means that the elevation of the
// POI is not known and should be set to the users GPS height
// Note: this could be improved with calls to
// http://www.geonames.org/export/web-services.html#astergdem
// to estimate the correct height with DEM models like SRTM, AGDEM or GTOPO30
if (mGeoLoc.getAltitude() == 0.0) mGeoLoc.setAltitude(curGPSFix.getAltitude());
// compute the relative position vector from user position to POI location
PhysicalPlace.convLocToVec(curGPSFix, mGeoLoc, locationVector);
}
public double getAltitude() {
return mGeoLoc.getAltitude();
}
public double getLongitude() {
return mGeoLoc.getLongitude();
}