/// <summary>
/// check if this mask contains a tile
/// </summary>
/// <param name="tilexy"></param>
/// <returns></returns>
public bool ContainsTile(TileXY tilexy)
{
double lat, lon;
BingProjection.PixelXYToLatLong((int)tilexy.x * 256, (int)tilexy.y * 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + 256, (int)tilexy.y * 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256, (int)tilexy.y * 256 + 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + 256, (int)tilexy.y * 256 + 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
return(true);
}
private PointD GetLonLat(Point pixelOffset, TileXY tilexy)
{
double lat, lon;
BingProjection.PixelXYToLatLong(tilexy.x * 256 + pixelOffset.X, tilexy.y * 256 + pixelOffset.Y, (int)tilexy.level, out lat, out lon);
return(new PointD(lon, lat));
}
public bool ContainsTilePixel(TileXY tilexy, Point pixelOffset)
{
double lat, lon;
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + pixelOffset.X, (int)tilexy.y * 256 + pixelOffset.Y, (int)tilexy.level, out lat, out lon);
return(ContainsLatLon(lat, lon) ? true : false);
}
/// <summary>
/// initialize map from a dir which contains *.tdata and *.tmeta files
/// </summary>
/// <param name="dataDir"></param>
public TDataNavigator(string[] tmetaPaths, PictureBox pbox, TextBox tbTileInfo, ComboBox cbGuessedPixelValidRanges, TextBox tbUtmCorrectionZone)
{
this.pbox = pbox;
this.tbTileInfo = tbTileInfo;
this.cbGuessedPixelValidRanges = cbGuessedPixelValidRanges;
this.tbUtmCorrectionZone = tbUtmCorrectionZone;
// create dataPath array
tdataPaths = new string[tmetaPaths.Length];
for (int i = 0; i < tmetaPaths.Length; i++)
{
tdataPaths[i] = tmetaPaths[i].ToLower().Replace(".tmeta", ".tdata");
}
// load all meta info
levelMin = Int32.MaxValue;
levelMax = 0;
for (int i = 0; i < tmetaPaths.Length; i++)
{
using (MMetaFile metaFile = new MMetaFile(tmetaPaths[i]))
{
int recordCnt = metaFile.GetRecordCnt();
for (int j = 0; j < recordCnt; j++)
{
MSTileMetaInfo meta = metaFile.Read(j);
if ((int)meta.tilexy.level < levelMin)
{
levelMin = (int)meta.tilexy.level;
centerTilexy = new TileXY(meta.tilexy);
}
levelMax = Math.Max(levelMax, (int)meta.tilexy.level);
tiles.Add(new TileXY(meta.tilexy), new TileMeta(meta, i));
}
}
}
// zoom in center tile to a reasonable level
while (true)
{
int validSonCount = 0;
TileXY validSonXY = centerTilexy;
foreach (TileXY txy in centerTilexy.GetSon().GetSiblings())
{
if (tiles.ContainsKey(txy))
{
validSonCount++;
validSonXY = txy;
}
}
if (validSonCount == 1)
{
centerTilexy = validSonXY;
}
else
{
break;
}
}
// guess an initial utm correction zone
double lat, lon;
BingProjection.PixelXYToLatLong(centerTilexy.x * 256 + 128, centerTilexy.y * 256 + 128, (int)centerTilexy.level, out lat, out lon);
tbUtmCorrectionZone.Text = Helper.LongitudeToUtmZone(lon).ToString();
Paint();
}