public static void LLToPixel(PointD latLong, int zoomLevel, out long x, out long y, int tileSize = 256)
{
//convert LL to Mercatator
PointD merc = ShapeFile.LLToMercator(latLong);
double scale = ZoomLevelToScale(zoomLevel, tileSize);
x = (long)Math.Round((merc.X + MaxMerc.X) * scale);
y = (long)Math.Round((MaxMerc.Y - merc.Y) * scale);
}