private void ReadInputData(int outRow, int rowCount, RasterVirtualVistor <Tsrc>[] fileVistor, Tsrc nullValue)
{
for (int i = 0; i < _fileIn.Length; i++)
{
RasterVirtualVistor <Tsrc> fv = new RasterVirtualVistor <Tsrc>();
fv.Raster = _fileIn[i].Raster;
fv.BandMap = _fileIn[i].BandMap;
fv.IndexY = outRow;
fv.SizeY = rowCount;
fv.SizeX = _fileIn[i].Raster.Width;
//
int[] bandMap = _fileIn[i].BandMap;
IRasterBand[] bands = new RasterBand[bandMap.Length];
for (int b = 0; b < bandMap.Length; b++)
{
bands[b] = _fileIn[i].Raster.GetRasterBand(bandMap[b]);
}
fv.Bands = bands;
Tsrc[][] bandsVirtureData = new Tsrc[bands.Length][];
for (int j = 0; j < bands.Length; j++)
{
int bandNo = bandMap[j];
Tsrc[] dstVirtualData = _vRasterIn[i].ReadData <Tsrc>(bandNo, 0, outRow, _vRasterIn[i].VirtualHeader.Width, rowCount, nullValue);
bandsVirtureData[j] = dstVirtualData;
}
fv.RasterBandsData = bandsVirtureData;
fileVistor[i] = fv;
}
}
private void ExcuteMultiRow(int rowIndex, int rowCount, Tsrc nullValue)
{
//初始化AOI
TrySetAOI(rowIndex, rowCount);
//初始化数据访问器
RasterVirtualVistor <Tsrc>[] fileVistor = new RasterVirtualVistor <Tsrc> [_fileIn.Length];
RasterVirtualVistor <Tdst>[] fileOutVistor = new RasterVirtualVistor <Tdst> [_fileOut.Length];
ReadInputData(rowIndex, rowCount, fileVistor, nullValue);
ReadOutputData(rowIndex, rowCount, fileOutVistor);
//处理逻辑
if (_calcModle != null)
{
_calcModle(fileVistor, fileOutVistor, _aoiIndex);
}
bool isSave = true;
if (_calcModleFun != null)
{
isSave = _calcModleFun(fileVistor, fileOutVistor, _aoiIndex);
}
//更新输出数据
if (isSave)
{
UpdateOutData(fileOutVistor, rowCount);
}
}
internal void ReadOutputData(int outRow, int rowCount, RasterVirtualVistor <Tdst>[] fileVistor)
{
for (int i = 0; i < _fileOut.Length; i++)
{
RasterVirtualVistor <Tdst> fv = new RasterVirtualVistor <Tdst>();
fv.BandMap = _fileOut[i].BandMap;
fv.IndexY = outRow;
fv.SizeX = _fileOut[i].Raster.Width;
fv.SizeY = rowCount;
fv.Raster = _fileOut[i].Raster;
int[] bandMap = _fileOut[i].BandMap;
IRasterBand[] bands = new RasterBand[bandMap.Length];
for (int b = 0; b < bandMap.Length; b++)
{
bands[b] = _fileOut[i].Raster.GetRasterBand(bandMap[b]);
}
fv.Bands = bands;
//初始化源数据访问
int outWidth = _vRasterIn[0].VirtualHeader.Width;
int readOffsetx = 0;
int readOffsetY = outRow;
int xSize = outWidth;
int ySize = rowCount;
enumDataType type = _fileOut[i].Raster.DataType;
//if (type == enumDataType.Int16)
//{
Tdst[][] bandsVirtureData = new Tdst[bands.Length][];
for (int b = 0; b < bands.Length; b++)
{
Tdst[] bufferData = new Tdst[xSize * ySize];
GCHandle buffer = GetHandles(bufferData);
bands[b].Read(readOffsetx, readOffsetY, xSize, ySize, buffer.AddrOfPinnedObject(), type, xSize, ySize);
buffer.Free();
bandsVirtureData[b] = bufferData;
}
fv.RasterBandsData = bandsVirtureData;
//}
fileVistor[i] = fv;
}
}
