/// <summary>
/// 读取指定行列号的数据
/// </summary>
/// <param name="level"></param>
/// <param name="row"></param>
/// <param name="col"></param>
/// <returns></returns>
public Byte[] Read(int level, int row, int col)
{
string bundleFilePath = GetBundleFileWithouExtention(level, row, col);
// 打开对应的索引文件
EsriBundleIndexFile indexFile = new EsriBundleIndexFile(bundleFilePath + EsriBundleFileConfig.BundleIndexExt);
indexFile.Intiliaze();
// 读取所有索引
var bundleIndices = indexFile.GetAllIndices();
// 读取数据文件
EsriBundleFile dataFile = new EsriBundleFile(bundleFilePath + EsriBundleFileConfig.BundleExt, bundleIndices);
dataFile.Intiliaze();
int index;
EsriBundleHelper.ComputeIndex(row, col, PacketSize, out index);
var tileBytes = dataFile.Read(index);
indexFile.Dispose();
dataFile.Dispose();
return tileBytes;
}
static void CreateDataFileTest()
{
var oldIndexPath = @"d:\esri\R1300C6980.bundlx";
var oldDataPath = @"d:\esri\R1300C6980.bundle";
var newDataPath = @"d:\esri\R1300C6980new.bundle";
EsriBundleIndexFile oldIndexFile = new EsriBundleIndexFile(oldIndexPath);
oldIndexFile.Intiliaze();
var allOldStorageIndices = oldIndexFile.GetAllIndices();
EsriBundleFile oldDataFile = new EsriBundleFile(oldDataPath, allOldStorageIndices);
oldDataFile.Intiliaze();
EsriBundleFile newDataFile = new EsriBundleFile(oldDataFile.Config);
newDataFile.Intiliaze();
for (int i = 0; i < 16384; i++)
{
var dataBytes = oldDataFile.Read(i);
newDataFile.Write(i, dataBytes);
}
newDataFile.SaveAs(newDataPath);
}
static void CreateIndexFile(string oldfilepath, string newfilepath)
{
EsriBundleIndexFile indexfile = new EsriBundleIndexFile(oldfilepath);
indexfile.Intiliaze();
//indexfile.SaveAs(newfilepath);
EsriBundleIndexFile indexfile1 = new EsriBundleIndexFile(indexfile.GetAllIndices());
indexfile1.Intiliaze();
indexfile1.SaveAs(newfilepath);
indexfile1.Dispose();
indexfile.Dispose();
}
static void TestSaveAs()
{
var oldIndexPath = @"d:\esri\R1300C6980.bundlx";
var oldDataPath = @"d:\esri\R1300C6980.bundle";
var newDataPath = @"d:\esri\R1300C6980new.bundle";
EsriBundleIndexFile oldIndexFile = new EsriBundleIndexFile(oldIndexPath);
oldIndexFile.Intiliaze();
var allOldStorageIndices = oldIndexFile.GetAllIndices();
EsriBundleFile oldDataFile = new EsriBundleFile(oldDataPath, allOldStorageIndices);
oldDataFile.Intiliaze();
oldDataFile.SaveAs(newDataPath);
}
static void ReadTest()
{
var oldIndexPath = @"d:\esri\R0000C0000.bundlx";
var oldDataPath = @"d:\esri\R0000C0000.bundle";
EsriBundleIndexFile oldIndexFile = new EsriBundleIndexFile(oldIndexPath);
oldIndexFile.Intiliaze();
var allOldStorageIndices = oldIndexFile.GetAllIndices();
EsriBundleFile oldDataFile = new EsriBundleFile(oldDataPath, allOldStorageIndices);
oldDataFile.Intiliaze();
for (int i = 0; i < 16384; i++)
{
var dataBytes = oldDataFile.Read(i);
if (dataBytes != null)
{
var indexx = allOldStorageIndices[i];
}
}
}
public void Intiliaze()
{
if (IsIntiliazed) return;
if (NewFileMode)
{
TilesBytesDict = new Dictionary<int, byte[]>(EsriBundleFileConfig.MaxTileCount);
AllIndices = new List<TileIndex>();
IsIntiliazed = true;
return;
}
TileDataStream = new FileStream(FilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
ReadHeader(TileDataStream);
if (AllIndices != null)
{
IntilizeIndicesDict();
}
else
{
var indexFilePath = Path.ChangeExtension(FilePath, EsriBundleFileConfig.BundleIndexExt);
using (EsriBundleIndexFile indefile = new EsriBundleIndexFile(indexFilePath))
{
indefile.Intiliaze();
AllIndices = indefile.GetAllIndices();
}
IntilizeIndicesDict();
}
IsIntiliazed = true;
}