bool CacheTiles(int __zoom, GPoint p)
{
foreach (var pr in provider.Overlays)
{
Exception ex;
PureImage img;
// tile number inversion(BottomLeft -> TopLeft)
if (pr.InvertedAxisY)
{
img = GMaps.Instance.GetImageFrom(pr, new GPoint(p.X, maxOfTiles.Height - p.Y), __zoom, out ex);
}
else // ok
{
img = GMaps.Instance.GetImageFrom(pr, p, __zoom, out ex);
}
if (img != null)
{
db.保存(img.Data.GetBuffer(), p, zoom);
img.Dispose();
}
else
{
return(false);
}
}
return(true);
}
