internal void GoToCurrentPositionOnZoom()
{
renderOffset = MapPoint.Empty;
centerTileXYLocationLast = MapPoint.Empty;
dragPoint = MapPoint.Empty;
if (MouseWheelZooming)
{
if (MouseWheelZoomType != MouseWheelZoomType.MousePositionWithoutCenter)
{
MapPoint pt = new MapPoint(-(CurrentPositionGPixel.X - Width / 2), -(CurrentPositionGPixel.Y - Height / 2));
renderOffset.X = pt.X - dragPoint.X;
renderOffset.Y = pt.Y - dragPoint.Y;
}
else
{
renderOffset.X = -CurrentPositionGPixel.X - dragPoint.X;
renderOffset.Y = -CurrentPositionGPixel.Y - dragPoint.Y;
renderOffset.Offset(mouseLastZoom);
}
}
else
{
mouseLastZoom = MapPoint.Empty;
MapPoint pt = new MapPoint(-(CurrentPositionGPixel.X - Width / 2), -(CurrentPositionGPixel.Y - Height / 2));
renderOffset.X = pt.X - dragPoint.X;
renderOffset.Y = pt.Y - dragPoint.Y;
}
UpdateCenterTileXYLocation();
}
public MapPoint FromLatLngToLocal(PointLatLng latlng)
{
MapPoint pLocal = Projection.FromLatLngToPixel(latlng, Zoom);
pLocal.Offset(renderOffset);
return(pLocal);
}
public void DragOffset(MapPoint offset)
{
renderOffset.Offset(offset);
UpdateCenterTileXYLocation();
if (centerTileXYLocation != centerTileXYLocationLast)
{
centerTileXYLocationLast = centerTileXYLocation;
UpdateBounds();
}
{
LastLocationInBounds = CurrentPosition;
CurrentPosition = FromLocalToLatLng((int)Width / 2, (int)Height / 2);
}
if (OnMapDrag != null)
{
OnMapDrag();
}
}
