public TileDisplayDescriptorArray GetTileArrayDescriptor(LatLonZoom center, Size windowSize)
{
TileDisplayDescriptorArray tileDisplayDescriptorArray = new TileDisplayDescriptorArray();
MapRectangle mapWindow = this.GetMapWindow(center, windowSize);
tileDisplayDescriptorArray.topLeftTile = this.GetTileContainingLatLonZoom(new LatLonZoom(mapWindow.GetNW(), center.zoom));
TileAddress tileContainingLatLonZoom = this.GetTileContainingLatLonZoom(new LatLonZoom(mapWindow.GetSE(), center.zoom));
tileDisplayDescriptorArray.tileCountX = tileContainingLatLonZoom.TileX - tileDisplayDescriptorArray.topLeftTile.TileX + 1;
tileDisplayDescriptorArray.tileCountY = tileContainingLatLonZoom.TileY - tileDisplayDescriptorArray.topLeftTile.TileY + 1;
int x = this.GetTranslationInPixels(center, this.GetLatLonOfTileNW(tileDisplayDescriptorArray.topLeftTile)).X;
int x2 = this.GetTranslationInPixels(center, this.GetLatLonOfTileNW(new TileAddress(tileDisplayDescriptorArray.topLeftTile.TileX + tileDisplayDescriptorArray.tileCountX, tileDisplayDescriptorArray.topLeftTile.TileY, tileDisplayDescriptorArray.topLeftTile.ZoomLevel))).X;
int num = x2 - x;
int num2 = windowSize.Width + 512;
if (num > num2)
{
D.Sayf(0, "break", new object[0]);
}
tileDisplayDescriptorArray.layout = this.addressLayout;
tileDisplayDescriptorArray.tileSize = this.GetTileSize();
Point64 point = this.LatLongZoomToPixel(new LatLonZoom(mapWindow.GetNW(), center.zoom));
tileDisplayDescriptorArray.topLeftTileOffset = new Point64((long)tileDisplayDescriptorArray.topLeftTile.TileX * 256L - point.X, (long)tileDisplayDescriptorArray.topLeftTile.TileY * 256L - point.Y).ToPoint();
tileDisplayDescriptorArray.topLeftTile.TileX = VEAddressLayout.WrapLongitude(tileDisplayDescriptorArray.topLeftTile.TileX, tileDisplayDescriptorArray.topLeftTile.ZoomLevel);
return(tileDisplayDescriptorArray);
}
public int XValueOneTileEast(TileAddress ta)
{
return(VEAddressLayout.WrapLongitude(ta.TileX + 1, ta.ZoomLevel));
}