private Area createMapViewAreaForCenterImg(MapView mapView)
{
Point centerImgLocation = mapView.getCenterImgPosition();
GpsLocation gpsLoc = mapView.getGpsLocation();
int pixelsToLeftEdge = centerImgLocation.X;
int pixelsToTopEdge = centerImgLocation.Y;
Image centerPart = mapView.getImgByPoint(new Point(1, 1));
int pixelsToRightEdge = centerPart.Width - centerImgLocation.X;
int pixelsToBottomEdge = centerPart.Height - centerImgLocation.Y;
double latitudePerPixel = this.currentMapPkg.getLatitudePerPixel();
double longitudePerPixel = this.currentMapPkg.getLongitudePerPixel();
double topLeftLatitude = gpsLoc.getLatitude() + pixelsToTopEdge * latitudePerPixel;
double topLeftLongitude = gpsLoc.getLongitude() - pixelsToLeftEdge * longitudePerPixel;
double bottomRightLatitude = gpsLoc.getLatitude() - pixelsToBottomEdge * latitudePerPixel;
double bottomRightLongitude = gpsLoc.getLongitude() + pixelsToRightEdge * longitudePerPixel;
return(new Area(topLeftLatitude, topLeftLongitude, bottomRightLatitude, bottomRightLongitude));
}
public bool isValidForGpsLocation(GpsLocation gpsLoc)
{
return(this.centerImgArea.contains(gpsLoc.getLatitude(), gpsLoc.getLongitude()));
}
private double getLocationsDistance(GpsLocation gl1, GpsLocation gl2)
{
// distance between two points
return(Math.Sqrt(Math.Pow(gl2.getLatitude() - gl1.getLatitude(), 2) +
Math.Pow(gl2.getLongitude() - gl1.getLongitude(), 2)));
}