private void CreateEmptyTileBuffer()
{
int minLevel = 1;
TileComputer tileComputer = new TileComputer(_tileSetting.TileSize, _tileSetting.SampleRatio);
LevelDef[] levels = tileComputer.GetLevelDefs(_dataProvider.Width, _dataProvider.Height);
int levelCount = levels.Length;
byte[] buffer = new byte[_tileSetting.TileSize * _tileSetting.TileSize * _dataTypeSize];
for (int i = levelCount - 1; i >= minLevel; i--)
{
for (int b = 1; b <= _dataProvider.BandCount; b++)
{
TileIdentify[] ts = levels[i].TileIdentities;
foreach (TileIdentify t in ts)
{
string fName = GetTileBufferFileName(t, b) + "_" + t.Width.ToString() + "_" + t.Height + ".RAW";
using (FileStream fs = new FileStream(fName, FileMode.Create))
{
fs.SetLength(t.Width * t.Height * _dataTypeSize);
}
}
}
}
}
private void TestReadFromLevelBuffer()
{
int idx = 0;
int minLevel = 1;
TileComputer tileComputer = new TileComputer(_tileSetting.TileSize, _tileSetting.SampleRatio);
LevelDef[] levels = tileComputer.GetLevelDefs(_dataProvider.Width, _dataProvider.Height);
int levelCount = levels.Length;
byte[] buffer = new byte[_tileSetting.TileSize * _tileSetting.TileSize * _dataTypeSize];
for (int i = levelCount - 1; i >= minLevel; i--)
{
for (int b = 1; b <= _dataProvider.BandCount; b++)
{
string fName = GetLevelBufferFileName(b, levels[i]);
using (FileStream fs = new FileStream(fName, FileMode.Open))
{
TileIdentify[] ts = levels[i].TileIdentities;
foreach (TileIdentify t in ts)
{
fs.Seek(t.BeginRow * t.Width + t.BeginCol, SeekOrigin.Begin);
fs.Read(buffer, 0, t.Width * t.Height * _dataTypeSize);
//Console.WriteLine((idx++).ToString());
}
}
}
}
}
public void UpdateTileComputer(ICanvas canvas)
{
TileSetting tileSetting = canvas.CanvasSetting != null ? canvas.CanvasSetting.TileSetting : new TileSetting();
if (_tileComputer == null || _tileComputer.TileSize != tileSetting.TileSize || _tileComputer.SampleRatio != tileSetting.SampleRatio)
{
_tileComputer = new TileComputer(tileSetting.TileSize, tileSetting.SampleRatio);
_leves = _tileComputer.GetLevelDefs(_dataProvider.Width, _dataProvider.Height);
}
}
private void CreateBufferByLevel()
{
int[] defaultBandNos, otherBandNos;
GetBandNos(out defaultBandNos, out otherBandNos);
TileComputer tileComputer = new TileComputer(_tileSetting.TileSize, _tileSetting.SampleRatio);
LevelDef[] levels = tileComputer.GetLevelDefs(_dataProvider.Width, _dataProvider.Height);
int levelCount = levels.Length;
Stopwatch sw = new Stopwatch();
sw.Start();
CreateBufferByLevel(levels, 1, defaultBandNos);
CreateBufferByLevel(levels, 1, otherBandNos);
sw.Stop();
Console.WriteLine("Lost time : " + sw.ElapsedMilliseconds.ToString());
}
public float Estimate(string fname, out int memoryOfTile, out int tileCount)
{
int bandCount;
int width;
int height;
tileCount = 0;
memoryOfTile = 0;
using (IRasterDataProvider prd = GeoDataDriver.Open(fname) as IRasterDataProvider)
{
bandCount = prd.BandCount;
width = prd.Width;
height = prd.Height;
}
int tileSize = 512;
TileComputer computer = new TileComputer(tileSize, 2);
LevelDef[] lvs = computer.GetLevelDefs(width, height);
if (lvs == null || lvs.Length == 0)
{
return(0);
}
tileCount = 0;
foreach (LevelDef lv in lvs)
{
if (lv.TileIdentities != null && lv.TileIdentities.Length > 0)
{
tileCount += lv.TileIdentities.Length;
}
}
//
float memorySize = 0;
if (bandCount == 1)
{
memoryOfTile = tileSize * tileSize * 1;
}
else
{
memoryOfTile = tileSize * tileSize * 3;
}
memorySize = tileCount * memoryOfTile / 1024 / 1024;//MB
//
return(memorySize);
}
private void CreateEmptyLevelBuffer()
{
int minLevel = 1;
TileComputer tileComputer = new TileComputer(_tileSetting.TileSize, _tileSetting.SampleRatio);
LevelDef[] levels = tileComputer.GetLevelDefs(_dataProvider.Width, _dataProvider.Height);
int levelCount = levels.Length;
byte[] buffer = new byte[_tileSetting.TileSize * _tileSetting.TileSize * _dataTypeSize];
for (int i = levelCount - 1; i >= minLevel; i--)
{
for (int b = 1; b <= _dataProvider.BandCount; b++)
{
string fName = GetLevelBufferFileName(b, levels[i]);
using (FileStream fs = new FileStream(fName, FileMode.Create))
{
fs.SetLength((long)levels[i].Size.Width * (long)levels[i].Size.Height * (long)_dataTypeSize);
}
}
}
}