private void btnReset_Click(object sender, EventArgs e)
{
GeoLatLng latLng = _rasterMap.FromScreenPixelToLatLng(_topLeft);
GeoPoint pt = MapLayer.FromLatLngToPixel(latLng, _rasterMap.GetZoom());
_rasterMap.PanDirection((int)(pt.X % 256), (int)(pt.Y % 256));
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 18JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Returns the point at the center of the rectangle.
* @return the point at the center of the rectangle.
*/
public GeoLatLng GetCenter()
{
GeoPoint pt1 = MapLayer.FromLatLngToPixel(GetSouthWest(), 15);
GeoPoint pt2 = MapLayer.FromLatLngToPixel(GetNorthEast(), 15);
GeoPoint pt = new GeoPoint();
pt.X = pt1.X + (pt2.X - pt1.X) / 2;
pt.Y = pt1.Y + (pt2.Y - pt1.Y) / 2;
return(MapLayer.FromPixelToLatLng(pt, 15));
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Computes the pixel coordinates of the given geographical point in the map.
* @param latlng the geographical coordinates.
* @return the pixel coordinates in the map.
*/
protected GeoPoint FromLatLngToMapPixel(GeoLatLng latlng)
{
GeoPoint center = MapLayer.FromLatLngToPixel(_mapCenterPt, _mapZoomLevel);
GeoPoint topLeft = new GeoPoint(center.X - _mapSize.Width / 2.0,
center.Y - _mapSize.Height / 2.0);
GeoPoint pointPos = MapLayer.FromLatLngToPixel(latlng, _mapZoomLevel);
pointPos.X -= topLeft.X;
pointPos.Y -= topLeft.Y;
return(new GeoPoint((int)(pointPos.X + 0.5), (int)(pointPos.Y + 0.5)));
}