internal SKRect ConvertSpanToLocal(MapSpan gpsSpan)
{
Rectangle mercatorRect = gpsSpan.ToMercator();
if (gpsSpan.Crosses180thMeridianRight() && _MercatorRenderArea.Left < SKMapExtensions.MercatorCenterOffset)
{
// We cross the 180th meridian to the right and are drawing to a tile on the left side of the map, so wrap around
mercatorRect.X -= SKMapExtensions.MercatorMapSize;
}
else if (gpsSpan.Crosses180thMeridianLeft() && _MercatorRenderArea.Right > SKMapExtensions.MercatorCenterOffset)
{
// We cross the 180th meridian to the left and are drawing to a tile on the right side of the map, so wrap around
mercatorRect.X += SKMapExtensions.MercatorMapSize;
}
return(ApplyMatrix(mercatorRect));
}