private string[] LdfOptions(FilePrjSettings prjSettings, ISpatialReference dstSpatial, float resolutionX, float resolutionY, DataIdentify dataIdentify)
{
List <string> options = new List <string>();
options.Add("INTERLEAVE=BSQ");
options.Add("VERSION=LDF");
options.Add("SPATIALREF=" + dstSpatial.ToProj4String());
options.Add("MAPINFO={" + 1 + "," + 1 + "}:{" + prjSettings.OutEnvelope.MinX + "," + prjSettings.OutEnvelope.MaxY + "}:{" + resolutionX + "," + resolutionY + "}");
options.Add("SENSOR=NOM");
if (dataIdentify != null)
{
string satellite = dataIdentify.Satellite;
DateTime dt = dataIdentify.OrbitDateTime;
bool asc = dataIdentify.IsAscOrbitDirection;
if (!string.IsNullOrWhiteSpace(satellite))
{
options.Add("SATELLITE=" + satellite);
}
if (dt != DateTime.MinValue && dt != DateTime.MaxValue)
{
options.Add("DATETIME=" + dt.ToString("yyyy/MM/dd HH:mm"));
}
}
return(options.ToArray());
}
private IRasterBand[] GetDstRasterBand(IRasterDataProvider dstRaster, FilePrjSettings prjSettings, int beginBandIndex)
{
IRasterBand[] bands = new IRasterBand[prjSettings.OutBandNos.Length];
int[] bandNos = prjSettings.OutBandNos;
for (int i = beginBandIndex; i < bandNos.Length + beginBandIndex; i++)
{
if (dstRaster is IBandNameRaster)
{
int newBand = -1;
if ((dstRaster as IBandNameRaster).TryGetBandNoFromBandName(bandNos[i], out newBand))
{
bands[i] = dstRaster.GetRasterBand(newBand);
}
else
{
bands[i] = dstRaster.GetRasterBand(bandNos[i]);
}
}
else
{
bands[i] = dstRaster.GetRasterBand(bandNos[i]);
}
}
return(bands);
}
private IRasterDataProvider CreateOutFile(FilePrjSettings prjSettings, ISpatialReference dstSpatial, DataIdentify dataIdentify)
{
float resolutionX = prjSettings.OutResolutionX;
float resolutionY = prjSettings.OutResolutionY;
string[] options = null;
string outformat = string.IsNullOrWhiteSpace(prjSettings.OutFormat) ? ".ldf" : prjSettings.OutFormat.ToLower();
string driver = "";
if (outformat == ".tif" || outformat == ".tiff")
{
driver = "GDAL";
options = new string[] {
"DRIVERNAME=GTiff",
"TFW=YES",
"WKT=" + dstSpatial.ToWKTString(),
"GEOTRANSFORM=" + string.Format("{0},{1},{2},{3},{4},{5}", prjSettings.OutEnvelope.MinX, resolutionX, 0, prjSettings.OutEnvelope.MaxY, 0, -resolutionY)
};
}
else
{
driver = "LDF";
options = LdfOptions(prjSettings, dstSpatial, resolutionX, resolutionY, dataIdentify);
List <string> opts = new List <string>(options);
opts.Add("BANDNAMES=" + BandNameString(prjSettings.OutBandNos));
options = opts.ToArray();
}
Size outSize = prjSettings.OutEnvelope.GetSize(resolutionX, resolutionY);
int bandCount = prjSettings.OutBandNos.Length;
string filename = prjSettings.OutPathAndFileName;
return(CreateOutFile(driver, filename, bandCount, outSize, enumDataType.Int16, options));
}
public override void Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
FY3_VIRR_PrjSettings fy3prjSettings = prjSettings as FY3_VIRR_PrjSettings;
TryCreateDefaultArgs(srcRaster, fy3prjSettings, ref dstSpatialRef);
DoSession(srcRaster, dstSpatialRef, fy3prjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
//地理坐标投影,下面简单的对地理坐标投影的范围作了限制，不大严谨，仅适合目前的状况。
if (dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
{
throw new Exception(string.Format("高纬度数据，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
}
Project(srcRaster, fy3prjSettings, dstSpatialRef, progressCallback);
}
private void ReadExtArgs(FilePrjSettings prjSettings)
{
try
{
if (prjSettings.ExtArgs != null && prjSettings.ExtArgs.Length != 0)
{
foreach (object arg in prjSettings.ExtArgs)
{
if (arg is Dictionary <string, double> )
{
Dictionary <string, double> exAtg = arg as Dictionary <string, double>;
if (exAtg.ContainsKey("GeoSlope"))
{
_geoSlope = exAtg["GeoSlope"];
}
if (exAtg.ContainsKey("GeoIntercept"))
{
_geoIntercept = exAtg["GeoIntercept"];
}
}
}
}
}
catch
{
}
}
/// <summary>
/// 针对某些经纬度数据集，使用整型数据表达的数据提供支持
/// 如xzoom=0.0001，xzoom=0.0001
/// 需要在读取经度后，将其数据*0.0001还原为真实的经纬度值
/// </summary>
/// <param name="prjSettings"></param>
private void ReadExtArgs(FilePrjSettings prjSettings)
{
if (prjSettings.ExtArgs != null && prjSettings.ExtArgs.Length != 0)
{
foreach (object arg in prjSettings.ExtArgs)
{
if (arg is Dictionary <string, double> )
{
Dictionary <string, double> exAtg = arg as Dictionary <string, double>;
if (exAtg.ContainsKey("xzoom"))
{
_xzoom = exAtg["xzoom"];
}
if (exAtg.ContainsKey("yzoom"))
{
_yzoom = exAtg["yzoom"];
}
if (exAtg.ContainsKey("FillValue"))
{
_fillValue = exAtg["FillValue"];
}
}
}
}
}
public override void Project(RSS.Core.DF.IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Project.ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
try
{
ReadyArgs(srcRaster, prjSettings, dstSpatialRef, progressCallback);
IRasterDataProvider outwriter = null;
try
{
Size outSize = _prjSettings.OutSize;
string[] options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"WITHHDR=TRUE",
"SPATIALREF=" + _dstSpatialRef.ToProj4String(),
"MAPINFO={" + 1 + "," + 1 + "}:{" + _prjSettings.OutEnvelope.MinX + "," + _prjSettings.OutEnvelope.MaxY + "}:{" + _outResolutionX + "," + _outResolutionY + "}"
};
outwriter = CreateOutFile(_outfilename, _dstBandCount, outSize, srcRaster.DataType, options);
//ReadyAngleFiles(_angleDataProvider, _outfilename, _prjSettings, outSize, options);
ProjectRaster(srcRaster, outwriter, 0, progressCallback);
}
catch (IOException ex)
{
if (ex.Message == "磁盘空间不足。\r\n" && File.Exists(_outfilename))
{
File.Delete(_outfilename);
}
throw ex;
}
finally
{
if (outwriter != null)
{
outwriter.Dispose();
outwriter = null;
}
}
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
if (_curSession == null)
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
}
public override void Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
EOS_MODIS_PrjSettings eosPrjSettings = prjSettings as EOS_MODIS_PrjSettings;
if (eosPrjSettings.LocationFile == null)
{
throw new ArgumentNullException("prjSettings.LocationFile", "EOS投影未设置经纬度坐标(MOD03.hdf)文件");
}
if (progressCallback != null)
{
progressCallback(0, "准备相关参数");
}
string fileType = CheckFile(srcRaster);
switch (fileType)
{
case "1000":
TryCreateDefaultArgsKM(srcRaster, eosPrjSettings, ref dstSpatialRef);
DoSession(srcRaster, dstSpatialRef, eosPrjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
Project(srcRaster, eosPrjSettings, dstSpatialRef, progressCallback);
break;
case "0500":
TryCreateDefaultArgsHKM(srcRaster, eosPrjSettings, ref dstSpatialRef);
DoSession(srcRaster, dstSpatialRef, eosPrjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
Project0500(srcRaster, _locationSize, eosPrjSettings, dstSpatialRef, progressCallback);
break;
case "0250":
TryCreateDefaultArgsQKM(srcRaster, eosPrjSettings, ref dstSpatialRef);
break;
default:
throw new NotSupportedException("不能识别该投影文件为受支持的EOS轨道数据" + srcRaster.fileName);
}
}
private void ReadySession(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (_curSession == null || _curSession != srcRaster || _isBeginSession)
{
Size srcSize = new Size(srcRaster.Width, srcRaster.Height);
if (progressCallback != null)
{
progressCallback(_readyProgress++, "投影准备");
}
_rasterDataBands = TryCreateRasterDataBands(srcRaster, prjSettings, progressCallback);
_isBeginSession = false;
}
}
/// <summary>
/// 投影主要方法
/// </summary>
/// <param name="srcRaster"></param>
/// <param name="prjSettings"></param>
/// <param name="dstSpatialRef"></param>
/// <param name="progressCallback"></param>
/// <param name="dataSets"></param>
/// <param name="hdf5attrs"></param>
/// <param name="outfilename"></param>
public void ProjectNew(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback, Dictionary <string, H5T.H5Type> dataSets)
{
ISpatialReference srcSpatialRef = srcRaster.SpatialRef;
_projectionTransform = ProjectionTransformFactory.GetProjectionTransform(srcSpatialRef, dstSpatialRef);
ArgsCheck(srcRaster, prjSettings, dstSpatialRef);
ReadySession(srcRaster, prjSettings, dstSpatialRef, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
PrjEnvelope dstEnvelope = null;
float srcResolutionX = srcRaster.ResolutionX;
float srcResolutionY = srcRaster.ResolutionY;
double srcLeftTopX = srcRaster.CoordEnvelope.MinX;
double srcLeftTopY = srcRaster.CoordEnvelope.MaxY;
int srcWidth = srcRaster.Width;
int srcHeight = srcRaster.Height;
Size srcSize = new Size(srcWidth, srcHeight);
int wSample = 1;
int hSample = 1;
if (srcWidth > 1000)
{
wSample = srcWidth / 1000;
}
if (srcHeight > 1000)
{
hSample = srcHeight / 1000;
}
double[] xs = new double[(srcWidth / wSample) * (srcHeight / hSample)];
double[] ys = new double[(srcWidth / wSample) * (srcHeight / hSample)];
int index = 0;//非真实的索引号，采样后的
for (int rowInx = 0; rowInx <= (srcHeight - hSample); rowInx += hSample)
{
for (int colInx = 0; colInx <= (srcWidth - wSample); colInx += wSample)
{
xs[index] = srcLeftTopX + colInx * srcResolutionX;
ys[index] = srcLeftTopY - rowInx * srcResolutionY;
index++;
}
}
_rasterProjector.ComputeDstEnvelope(srcSpatialRef, xs, ys, srcSize, dstSpatialRef, out dstEnvelope, null);
prjSettings.OutEnvelope = dstEnvelope;
}
GC.Collect();
ProjectRaster(srcRaster, prjSettings, progressCallback, dataSets);
}
private IRasterDataProvider CreateOutFile(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatial, enumDataType dataType)
{
float resolutionX = prjSettings.OutResolutionX;
float resolutionY = prjSettings.OutResolutionY;
string[] options = null;
string outformat = string.IsNullOrWhiteSpace(prjSettings.OutFormat) ? "LDF" : prjSettings.OutFormat.ToUpper();
string driver = "";
if (outformat == "TIFF")
{
driver = "GDAL";
options = new string[] {
"DRIVERNAME=GTiff",
"TFW=YES",
"WKT=" + dstSpatial.ToWKTString(),
"GEOTRANSFORM=" + string.Format("{0},{1},{2},{3},{4},{5}", prjSettings.OutEnvelope.MinX, resolutionX, 0, prjSettings.OutEnvelope.MaxY, 0, -resolutionY)
};
}
else if (outformat == "MEM")
{
driver = "MEM";
options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=MEM",
"WITHHDR=TRUE",
"SPATIALREF=" + dstSpatial.ToProj4String(),
"MAPINFO={" + 1 + "," + 1 + "}:{" + prjSettings.OutEnvelope.MinX + "," + prjSettings.OutEnvelope.MaxY + "}:{" + resolutionX + "," + resolutionY + "}"
};
}
else
{
driver = "LDF";
options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"SPATIALREF=" + dstSpatial.ToProj4String(),
"MAPINFO={" + 1 + "," + 1 + "}:{" + prjSettings.OutEnvelope.MinX + "," + prjSettings.OutEnvelope.MaxY + "}:{" + resolutionX + "," + resolutionY + "}",
"BANDNAMES=" + BandNameString(srcRaster, prjSettings.OutBandNos)
};
}
Size outSize = prjSettings.OutEnvelope.GetSize(resolutionX, resolutionY);
int bandCount = prjSettings.OutBandNos.Length;
string filename = prjSettings.OutPathAndFileName;
return(CreateOutFile(driver, filename, bandCount, outSize, dataType, options));
}
private FY3L2L3FilePrjSettings ArgsCheck(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster", "待投影数据为空");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings", "投影参数为空");
}
FY3L2L3FilePrjSettings _prjSettings = prjSettings as FY3L2L3FilePrjSettings;
if (_prjSettings.LocationFile == null)
{
throw new ArgumentNullException("prjSettings.LocationFile", "L2L3级轨道数据投影未设置经纬度数据集文件");
}
return(_prjSettings);
}
///针对FY2E，投影波段，设置为1,2,3,4,5[NOMChannelVIS],6[NOMCloudClassification]
private IRasterBand[] GetSrcRasterBand(IRasterDataProvider srcRaster, FilePrjSettings prjSettings)
{
IRasterBand[] bands = new IRasterBand[prjSettings.OutBandNos.Length];
int[] bandNos = prjSettings.OutBandNos;
if (bandNos.Length == 1 && bandNos[0] == 5)
{
IRasterBand[] bs = srcRaster.BandProvider.GetBands("NOMChannelVIS1KM");
if (bs != null)
{
bands[0] = bs[0];
bands[0].BandNo = 5;
_srcImgResolution = 0.01f;
}
}
else
{
for (int i = 0; i < bandNos.Length; i++)
{
if (bandNos[i] <= 4)
{
bands[i] = srcRaster.GetRasterBand(bandNos[i]);
}
else if (bandNos[i] == 5)
{
IRasterBand[] bs = srcRaster.BandProvider.GetBands("NOMChannelVIS1KM");
if (bs != null)
{
bands[i] = bs[0];
bands[i].BandNo = 5;
}
}
else if (bandNos[i] == 6)
{
IRasterBand[] bs = srcRaster.BandProvider.GetBands("NOMCloudClassification");
if (bs != null)
{
bands[i] = bs[0];
bands[i].BandNo = 6;
}
}
}
}
return(bands);
}
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
try
{
ReadyArgs(srcRaster, prjSettings, dstRaster.SpatialRef, progressCallback);
string[] angleOptions = LdfOptions(prjSettings, dstRaster.SpatialRef, _outResolutionX, _outResolutionY, srcRaster.DataIdentify);
ReadyAngleFiles(srcRaster, _outfilename, prjSettings, _dstSize, angleOptions);
ProjectToLDF(srcRaster, dstRaster, beginBandIndex, progressCallback);
return(dstRaster);
}
catch (IOException ex)
{
if (ex.Message == "磁盘空间不足。\r\n" && File.Exists(_outfilename))
{
File.Delete(_outfilename);
}
TryDeleteCurCatch();
throw ex;
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
if (dstRaster != null)
{
dstRaster.Dispose();
dstRaster = null;
}
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
return(base.Project(srcRaster, prjSettings, dstRaster, beginBandIndex, progressCallback));
}
private IRasterBand[] TryCreateRasterDataBands(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Action <int, string> progressCallback)
{
List <IRasterBand> rasterBands = new List <IRasterBand>();
for (int i = 0; i < prjSettings.OutBandNos.Length; i++)
{
if (progressCallback != null)
{
progressCallback(_readyProgress++, "投影准备");
}
int bandNo = prjSettings.OutBandNos[i];
IRasterBand band = srcRaster.GetRasterBand(bandNo);
rasterBands.Add(band);
}
return(rasterBands.ToArray());
}
private void ArgsCheck(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
if (dstSpatialRef == null)
{
throw new ArgumentNullException("dstSpatialRef");
}
if (srcRaster.SpatialRef == null)
{
throw new ArgumentNullException("srcRaster.SpatialRef");
}
if (string.IsNullOrWhiteSpace(prjSettings.OutFormat))
{
if (srcRaster.Driver.Name == "MEM")
{
prjSettings.OutFormat = "MEM";
}
//else if (srcRaster.Driver.Name == "GDAL")
//{
//}
else
{
prjSettings.OutFormat = "LDF";
}
}
if (prjSettings.OutResolutionX == 0f || prjSettings.OutResolutionY == 0f)
{
if ((dstSpatialRef.ProjectionCoordSystem == null && srcRaster.SpatialRef.ProjectionCoordSystem == null) ||
(dstSpatialRef.ProjectionCoordSystem != null && srcRaster.SpatialRef.ProjectionCoordSystem != null))
{
prjSettings.OutResolutionX = srcRaster.ResolutionX;
prjSettings.OutResolutionY = srcRaster.ResolutionY;
}
else if (dstSpatialRef.ProjectionCoordSystem != null && srcRaster.SpatialRef.ProjectionCoordSystem == null)
{
prjSettings.OutResolutionX = srcRaster.ResolutionX * 100000F;
prjSettings.OutResolutionY = srcRaster.ResolutionY * 100000F;
}
else if (dstSpatialRef.ProjectionCoordSystem == null && srcRaster.SpatialRef.ProjectionCoordSystem != null)
{
prjSettings.OutResolutionX = srcRaster.ResolutionX / 100000F;
prjSettings.OutResolutionY = srcRaster.ResolutionY / 100000F;
}
}
if (prjSettings.OutBandNos == null || prjSettings.OutBandNos.Length == 0)
{
List <int> bandNoList = new List <int>();
for (int i = 1; i <= srcRaster.BandCount; i++)
{
bandNoList.Add(i);
}
prjSettings.OutBandNos = bandNoList.ToArray();
}
}
public void RastAndProject <T>(Size outSize, H5T.H5Type ht5type, H5FileId fileId, string dataset, Action <int, string> progressCallback, int outWidth, int outHeight, int rowStep, IRasterDataProvider srcRaster, FilePrjSettings prjSettings, int bandnum, T fillValue, HDF5.Hdf5Operator ope)
{
T[,] data = new T[outSize.Height, outSize.Width];
// 定义数据集操作部分
long[] dims = new long[2];
dims[0] = Convert.ToInt64(outSize.Height);
dims[1] = Convert.ToInt64(outSize.Width);
H5DataSpaceId dspaceId = H5S.create_simple(2, dims);
// Define datatype for the data in the file.
H5DataTypeId dtypeId = H5T.copy(ht5type);
// Create the data set DATASETNAME.
H5DataSetId dsetId = H5D.create(fileId, dataset, dtypeId, dspaceId);
for (int oRow = 0; oRow < outHeight; oRow += rowStep)
{
#region 分块读取数据集
if (progressCallback != null)
{
percent++;
progress = percent * 100 / progressCount;
progressCallback(progress, string.Format("投影完成{0}%", progress));
}
if (oRow + rowStep > outHeight)
{
rowStep = outHeight - oRow;
}
Size outStepSize = new Size(outWidth, rowStep);
double[] xs = new double[outWidth * rowStep];
double[] ys = new double[outWidth * rowStep];
double oY = oRow * prjSettings.OutResolutionY;
Parallel.For(0, rowStep, j =>
{
double x;
double y;
int index;
y = prjSettings.OutEnvelope.LeftTop.Y - j * prjSettings.OutResolutionY - oY;
for (int i = 0; i < outWidth; i++)
{
x = prjSettings.OutEnvelope.LeftTop.Y + i * prjSettings.OutResolutionX;
index = i + j * outWidth;
xs[index] = x;
ys[index] = y;
}
});
_projectionTransform.InverTransform(xs, ys);
PrjEnvelope tEnvelope = PrjEnvelope.GetEnvelope(xs, ys, null);
tEnvelope.Extend(srcRaster.ResolutionX, srcRaster.ResolutionY * 4);
PrjEnvelope srcEnvelope = new PrjEnvelope(srcRaster.CoordEnvelope.MinX, srcRaster.CoordEnvelope.MaxX, srcRaster.CoordEnvelope.MinY, srcRaster.CoordEnvelope.MaxY);
tEnvelope = PrjEnvelope.Intersect(tEnvelope, srcEnvelope);
if (tEnvelope == null || tEnvelope.IsEmpty)
{
continue;
}
Size tSize = tEnvelope.GetSize(srcRaster.ResolutionX, srcRaster.ResolutionY);
int tBeginRow = -1, tEndRow = -1, tBeginCol = -1, tEndCol = -1;
int oBeginRow = -1, oEndRow = -1, oBeginCol = -1, oEndCol = -1;
PrjBlockHelper.ComputeBeginEndRowCol(srcEnvelope, new Size(srcRaster.Width, srcRaster.Height), tEnvelope, tSize,
ref oBeginRow, ref oBeginCol, ref oEndRow, ref oEndCol,
ref tBeginRow, ref tBeginCol, ref tEndRow, ref tEndCol);
int srcStepWidth = oEndCol - oBeginCol;
int srcStepHeight = oEndRow - oBeginRow;
Size srcStepSize = new Size(srcStepWidth, srcStepHeight);
T[] srcBandData = new T[srcStepWidth * srcStepHeight];
T[] dstBandData = new T[outWidth * rowStep];
double srcStepLeftTopX = tEnvelope.MinX;
double srcStepLeftTopY = tEnvelope.MaxY;
double srcStepRightBottomX = tEnvelope.MaxX;
double srcStepRightBottomY = tEnvelope.MinY;
UInt16[] rows = new UInt16[outWidth * rowStep]; //正向查找表
UInt16[] cols = new UInt16[outWidth * rowStep]; //正向查找表
if (progressCallback != null)
{
percent++;
progress = percent * 100 / progressCount;
progressCallback(progress, string.Format("投影完成{0}%", progress));
}
Parallel.For(0, rowStep, j =>
{
double x;
double y;
int index;
for (int i = 0; i < outWidth; i++)
{
index = i + j * outWidth;
x = xs[index];
y = ys[index];
if (x >= srcStepLeftTopX && x <= srcStepRightBottomX && y <= srcStepLeftTopY && y >= srcStepRightBottomY)
{
cols[index] = (UInt16)((x - srcStepLeftTopX) / srcRaster.ResolutionX + 0.5);
rows[index] = (UInt16)((srcStepLeftTopY - y) / srcRaster.ResolutionY + 0.5);
}
}
});
xs = null;
ys = null;
#endregion
//分块读取不同波段数据
ReadBandData <T>(srcBandData, bandnum, oBeginCol, oBeginRow, srcStepWidth, srcStepHeight, GetSysDataType(ht5type));
//投影不同分块的数据集
_rasterProjector.Project <T>(srcBandData, srcStepSize, rows, cols, outStepSize, dstBandData, fillValue, 0, null);
for (int i = 0; i < outStepSize.Width; i++)
{
for (int j = 0; j < outStepSize.Height; j++)
{
int index = j * outStepSize.Width + i;
data[j + oRow, i] = dstBandData[index];
}
}
rows = null;
rows = null;
srcBandData = null;
dstBandData = null;
}
H5D.write(dsetId, dtypeId, new H5Array <T>(data));
//写数据集属性
//Dictionary<string, string> dsetkeyvalue = ope.GetAttributes(dataset);
//foreach (string key in dsetkeyvalue.Keys)
//{
// string value = dsetkeyvalue[key];
// HDFAttributeDef attrdef = new HDFAttributeDef(key, typeof(string), dsetkeyvalue[key].Length, value);
// WriteHdfAttributes.WriteHdfAttribute(dsetId, attrdef);
//}
H5D.close(dsetId);
}
/// <summary>
/// 投影
/// </summary>
/// <param name="srcRaster"></param>
/// <param name="prjSettings"></param>
/// <param name="dstRaster"></param>
/// <param name="beginBandIndex"></param>
/// <param name="progressCallback"></param>
/// <returns></returns>
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, RSS.Core.DF.IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
if (dstRaster == null)
{
return(null);
}
try
{
_dstSpatialRef = dstRaster.SpatialRef;
CoordEnvelope coordEnv = dstRaster.CoordEnvelope;
prjSettings.OutEnvelope = PrjEnvelope.CreateByLeftTop(coordEnv.MinX, coordEnv.MaxY, coordEnv.Width, coordEnv.Height);
ReadyArgs(srcRaster, prjSettings, dstRaster.SpatialRef, progressCallback);
string outfilename = _prjSettings.OutPathAndFileName;
try
{
Size outSize = new Size(dstRaster.Width, dstRaster.Height);
string[] options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"WITHHDR=TRUE",
"SPATIALREF=" + _dstSpatialRef.ToProj4String(),
"MAPINFO={" + 1 + "," + 1 + "}:{" + _prjSettings.OutEnvelope.MinX + "," + _prjSettings.OutEnvelope.MaxY + "}:{" + dstRaster.ResolutionX + "," + dstRaster.ResolutionY + "}"
, "BANDNAMES=" + BandNameString(_prjSettings.OutBandNos)
};
//ReadyAngleFiles(_angleDataProvider, outfilename, _prjSettings, outSize, options);
ProjectRaster(srcRaster, dstRaster, beginBandIndex, progressCallback);
return(dstRaster);
}
catch (IOException ex)
{
if (ex.Message == "磁盘空间不足。\r\n" && File.Exists(outfilename))
{
File.Delete(outfilename);
}
throw ex;
}
finally
{
if (dstRaster != null)
{
dstRaster.Dispose();
dstRaster = null;
}
}
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
if (_curSession == null)
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
}
/// <summary>
/// 投影操作-重载方法
/// </summary>
/// <typeparam name="T">传递的数据集数据类型</typeparam>
/// <param name="srcRaster">原始的数据驱动</param>
/// <param name="prjSettings">投影设置类对象</param>
/// <param name="progressCallback">回调</param>
/// <param name="outhdf5name">导出的hdf5</param>
/// <param name="fillValue">填充值？</param>
private void ProjectRaster(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Action <int, string> progressCallback, Dictionary <string, H5T.H5Type> dataSets)
{
enumDataType dataType = enumDataType.UInt16;
PrjEnvelope outEnvelope = prjSettings.OutEnvelope;
float outResolutionX = prjSettings.OutResolutionX;
float outResolutionY = prjSettings.OutResolutionY;
Size outSize = prjSettings.OutSize;
int outWidth = outSize.Width;
int outHeight = outSize.Height;
int outBandCount = prjSettings.OutBandNos.Length;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "投影准备");
}
int srcHeight = srcRaster.Height;
int srcWidth = srcRaster.Width;
PrjPoint outLeftTopPoint = outEnvelope.LeftTop;
float srcResolutionX = srcRaster.ResolutionX;
float srcResolutionY = srcRaster.ResolutionY;
Size srcSize = new Size(srcWidth, srcHeight);
double outLtPointX = outLeftTopPoint.X;
double outLtPointY = outLeftTopPoint.Y;
PrjEnvelope srcEnvelope = new PrjEnvelope(srcRaster.CoordEnvelope.MinX, srcRaster.CoordEnvelope.MaxX, srcRaster.CoordEnvelope.MinY, srcRaster.CoordEnvelope.MaxY);
long mem = MemoryHelper.GetAvalidPhyMemory();
#if !WIN64
mem = mem < 800 * 1024 * 1024 ? mem : 800 * 1024 * 1024;
#endif
long maxLimit = mem / (6 * 8 * 2);
int rowStep = (int)(maxLimit / outWidth);
if (rowStep == 0)
{
rowStep = 1;
}
if (rowStep > outHeight)
{
rowStep = outHeight;
}
int stepCount = (int)(Math.Ceiling((double)outHeight / rowStep));
int progressCount = outBandCount * stepCount + stepCount * 2;
H5FileId fileId = H5F.create(prjSettings.OutPathAndFileName, H5F.CreateMode.ACC_TRUNC);
List <string> listdatasets = new List <string>();
foreach (string name in dataSets.Keys)
{
listdatasets.Add(name);
}
HDF5.Hdf5Operator oper = new HDF5.Hdf5Operator(srcRaster.fileName);
for (int bandnum = 0; bandnum < outBandCount; bandnum++)
{
enumDataType systype = enumDataType.Unknow;
H5T.H5Type h5filetype = dataSets[listdatasets[bandnum]];
systype = GetSysDataType(dataSets[listdatasets[bandnum]]);
switch (systype)
{
case enumDataType.Int16:
RastAndProject <Int16>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.Int32:
RastAndProject <Int32>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.Int64:
RastAndProject <Int64>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.UInt16:
RastAndProject <UInt16>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.UInt32:
RastAndProject <UInt32>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.UInt64:
RastAndProject <UInt64>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.Double:
RastAndProject <Double>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.Float:
RastAndProject <Single>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
case enumDataType.Byte:
RastAndProject <Byte>(outSize, h5filetype, fileId, listdatasets[bandnum], progressCallback, outWidth, outHeight, rowStep, srcRaster, prjSettings, bandnum, 0, oper);
break;
default: break;
}
}
Dictionary <string, string> filekeyvalue = oper.GetAttributes();
foreach (string key in filekeyvalue.Keys)
{
string value = filekeyvalue[key];
HDFAttributeDef attrdef = new HDFAttributeDef(key, typeof(string), filekeyvalue[key].Length, value);
WriteHdfAttributes.WriteHdfAttribute(fileId, attrdef);
}
//写四角坐标信息
HDFAttributeDef lefttopx = new HDFAttributeDef("Left-Top Latitude", typeof(string), prjSettings.OutEnvelope.LeftTop.Y.ToString().Length, prjSettings.OutEnvelope.LeftTop.Y.ToString());
WriteHdfAttributes.WriteHdfAttribute(fileId, lefttopx);
HDFAttributeDef lefttopy = new HDFAttributeDef("Left-Top Longtitude", typeof(string), prjSettings.OutEnvelope.LeftTop.X.ToString().Length, prjSettings.OutEnvelope.LeftTop.X.ToString());
WriteHdfAttributes.WriteHdfAttribute(fileId, lefttopy);
HDFAttributeDef boottomrightx = new HDFAttributeDef("Bottom-Right Latitude", typeof(string), prjSettings.OutEnvelope.RightBottom.Y.ToString().Length, prjSettings.OutEnvelope.RightBottom.Y.ToString());
WriteHdfAttributes.WriteHdfAttribute(fileId, boottomrightx);
HDFAttributeDef boottomrighty = new HDFAttributeDef("Bottom-Right Longtitude", typeof(string), prjSettings.OutEnvelope.RightBottom.X.ToString().Length, prjSettings.OutEnvelope.RightBottom.X.ToString());
WriteHdfAttributes.WriteHdfAttribute(fileId, boottomrighty);
//投影信息
string projtype = "Geopraphic Latitude longtitude";
HDFAttributeDef projecttype = new HDFAttributeDef("Projection Type", typeof(string), projtype.Length, projtype);
WriteHdfAttributes.WriteHdfAttribute(fileId, projecttype);
H5F.close(fileId);
}
private void ProjectRaster <T>(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Action <int, string> progressCallback, IRasterDataProvider prdWriter, T fillValue, double dataWeight, float zoom)
{
enumDataType dataType = prdWriter.DataType;
PrjEnvelope outEnvelope = prjSettings.OutEnvelope;
float outResolutionX = prjSettings.OutResolutionX;
float outResolutionY = prjSettings.OutResolutionY;
Size outSize = prjSettings.OutSize;
int outWidth = outSize.Width;
int outHeight = outSize.Height;
int outBandCount = prjSettings.OutBandNos.Length;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "投影准备");
}
int srcHeight = srcRaster.Height;
int srcWidth = srcRaster.Width;
PrjPoint outLeftTopPoint = outEnvelope.LeftTop;
float srcResolutionX = srcRaster.ResolutionX;
float srcResolutionY = srcRaster.ResolutionY;
Size srcSize = new Size(srcWidth, srcHeight);
double outLtPointX = outLeftTopPoint.X;
double outLtPointY = outLeftTopPoint.Y;
PrjEnvelope srcEnvelope = new PrjEnvelope(srcRaster.CoordEnvelope.MinX, srcRaster.CoordEnvelope.MaxX, srcRaster.CoordEnvelope.MinY, srcRaster.CoordEnvelope.MaxY);
long mem = MemoryHelper.GetAvalidPhyMemory();
#if !WIN64
mem = mem < 800 * 1024 * 1024 ? mem : 800 * 1024 * 1024;
#endif
long maxLimit = mem / (6 * 8 * 2);
int rowStep = (int)(maxLimit / outWidth);
if (rowStep == 0)
{
rowStep = 1;
}
if (rowStep > outHeight)
{
rowStep = outHeight;
}
int stepCount = (int)(Math.Ceiling((double)outHeight / rowStep));
int percent = 0;
int progress = 0;
int progressCount = outBandCount * stepCount + stepCount * 2;
for (int oRow = 0; oRow < outHeight; oRow += rowStep)
{
if (progressCallback != null)
{
percent++;
progress = percent * 100 / progressCount;
progressCallback(progress, string.Format("投影完成{0}%", progress));
}
if (oRow + rowStep > outHeight)
{
rowStep = outHeight - oRow;
}
Size outStepSize = new Size(outWidth, rowStep);
double[] xs = new double[outWidth * rowStep];
double[] ys = new double[outWidth * rowStep];
double oY = oRow * outResolutionY;
Parallel.For(0, rowStep, j =>
{
double x;
double y;
int index;
y = outLtPointY - j * outResolutionY - oY;
for (int i = 0; i < outWidth; i++)
{
x = outLtPointX + i * outResolutionX;
index = i + j * outWidth;
xs[index] = x;
ys[index] = y;
}
});
_projectionTransform.InverTransform(xs, ys);
PrjEnvelope tEnvelope = PrjEnvelope.GetEnvelope(xs, ys, null);
tEnvelope.Extend(srcResolutionX, srcResolutionY * 4);
tEnvelope = PrjEnvelope.Intersect(tEnvelope, srcEnvelope);
if (tEnvelope == null || tEnvelope.IsEmpty)
{
continue;
}
Size tSize = tEnvelope.GetSize(srcResolutionX, srcResolutionY);
int tBeginRow = -1, tEndRow = -1, tBeginCol = -1, tEndCol = -1;
int oBeginRow = -1, oEndRow = -1, oBeginCol = -1, oEndCol = -1;
PrjBlockHelper.ComputeBeginEndRowCol(srcEnvelope, srcSize, tEnvelope, tSize,
ref oBeginRow, ref oBeginCol, ref oEndRow, ref oEndCol,
ref tBeginRow, ref tBeginCol, ref tEndRow, ref tEndCol);
int srcStepWidth = oEndCol - oBeginCol;
int srcStepHeight = oEndRow - oBeginRow;
Size srcStepSize = new Size(srcStepWidth, srcStepHeight);
T[] srcBandData = new T[srcStepWidth * srcStepHeight];
T[] dstBandData = new T[outWidth * rowStep];
double srcStepLeftTopX = tEnvelope.MinX;
double srcStepLeftTopY = tEnvelope.MaxY;
double srcStepRightBottomX = tEnvelope.MaxX;
double srcStepRightBottomY = tEnvelope.MinY;
UInt16[] rows = new UInt16[outWidth * rowStep]; //正向查找表
UInt16[] cols = new UInt16[outWidth * rowStep]; //正向查找表
if (progressCallback != null)
{
percent++;
progress = percent * 100 / progressCount;
progressCallback(progress, string.Format("投影完成{0}%", progress));
}
Parallel.For(0, rowStep, j =>
{
double x;
double y;
int index;
for (int i = 0; i < outWidth; i++)
{
index = i + j * outWidth;
x = xs[index];
y = ys[index];
if (x >= srcStepLeftTopX && x <= srcStepRightBottomX && y <= srcStepLeftTopY && y >= srcStepRightBottomY)
{
cols[index] = (UInt16)((x - srcStepLeftTopX) / srcResolutionX + 0.5);
rows[index] = (UInt16)((srcStepLeftTopY - y) / srcResolutionY + 0.5);
}
}
});
xs = null;
ys = null;
for (int b = 0; b < outBandCount; b++)
{
if (progressCallback != null)
{
percent++;
progress = percent * 100 / progressCount;
progressCallback(progress, string.Format("投影完成{0}%", progress));
}
ReadBandData <T>(srcBandData, b, oBeginCol, oBeginRow, srcStepWidth, srcStepHeight, dataType);
//用于测试全图输出结果，用于查看插值的效果：
#if DebugEaseGrid
GCHandle hTe = GCHandle.Alloc(srcBandData, GCHandleType.Pinned);
try
{ Random random = new Random(12);
IntPtr bufferPtr = hTe.AddrOfPinnedObject();
Int16[] tmp = new Int16[srcBandData.Length];
for (int i = 0; i < srcBandData.Length; i++)
{
tmp[i] = (Int16)random.Next(200, 255);
}
Marshal.Copy(tmp, 0, bufferPtr, tmp.Length); }
finally
{
hTe.Free();
}
#endif
_rasterProjector.Project <T>(srcBandData, srcStepSize, rows, cols, outStepSize, dstBandData, fillValue, 0, null);
if (dataWeight == 1)
{
WriteDataToLDF <T>(prdWriter, dataType, outWidth, rowStep, oRow, dstBandData, b);
}
else
{
WriteDataToLDF <T>(prdWriter, dataType, outWidth, rowStep, oRow, dstBandData, b, dataWeight, zoom);
}
}
rows = null;
rows = null;
srcBandData = null;
dstBandData = null;
}
}
private void ProjectRaster <T>(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, Action <int, string> progressCallback, IRasterDataProvider prdWriter, T fillValue)
{
ProjectRaster <T>(srcRaster, prjSettings, progressCallback, prdWriter, fillValue, 1, 1);
}
private static FY3_MERSI_PrjSettings ArgsCheck(IRasterDataProvider srcRaster, FilePrjSettings prjSettings)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
FY3_MERSI_PrjSettings fy3prjSettings = prjSettings as FY3_MERSI_PrjSettings;
return(fy3prjSettings);
}
private void ReadyArgs(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
float resolutionScale = 1f;
_readyProgress = 0;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备相关参数");
}
if (dstSpatialRef == null)
{
dstSpatialRef = SpatialReference.GetDefault();
}
_dstSpatialRef = dstSpatialRef;
_prjSettings = ArgsCheck(srcRaster, prjSettings, progressCallback);
//_fileType = CheckFile(srcRaster);
_locationRaster = (prjSettings as FY3L2L3FilePrjSettings).LocationFile;
ReadExtArgs(prjSettings);
TryCreateDefaultArg(srcRaster, _prjSettings, ref _dstSpatialRef);
_left = 0;
_right = 0;
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
DoSession(srcRaster, _dstSpatialRef, _prjSettings, progressCallback);
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
_prjSettings.OutEnvelope = _maxPrjEnvelope;
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = srcRaster.Width - 1, yEnd = srcRaster.Height - 1
};
}
else
{
GetEnvelope(_xs, _ys, _srcLocationSize.Width, _srcLocationSize.Height, _prjSettings.OutEnvelope, out _orbitBlock);
if (_orbitBlock == null || _orbitBlock.Width <= 0 || _orbitBlock.Height <= 0)
{
throw new Exception("数据不在目标区间内");
}
float invalidPresent = (_orbitBlock.Width * _orbitBlock.Height * resolutionScale) / (srcRaster.Width * srcRaster.Height);
if (invalidPresent < 0.0001f)
{
throw new Exception("数据占轨道数据比例太小,有效率" + invalidPresent * 100 + "%");
}
if (invalidPresent > 0.60f)
{
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = srcRaster.Width - 1, yEnd = srcRaster.Height - 1
}
}
;
}
_dstEnvelope = _prjSettings.OutEnvelope;
if (!_dstEnvelope.IntersectsWith(_maxPrjEnvelope))
{
throw new Exception("数据不在目标区间内");
}
_outResolutionX = _prjSettings.OutResolutionX;
_outResolutionY = _prjSettings.OutResolutionY;
_outFormat = _prjSettings.OutFormat;
_outfilename = _prjSettings.OutPathAndFileName;
_dstProj4 = _dstSpatialRef.ToProj4String();
//_dstBandCount = _prjBands.Length;
_dstBandCount = _rasterDataBands.Length;
_dstSize = _prjSettings.OutSize;
//_isRadiation = _prjSettings.IsRadiation;
//_isSolarZenith = _prjSettings.IsSolarZenith;
//_isSensorZenith = _prjSettings.IsSensorZenith;
}
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
if (dstRaster == null)
{
return(null);
}
try
{
ReadyArgs(srcRaster, prjSettings, dstRaster.SpatialRef, progressCallback);
_prjSettings.OutPathAndFileName = dstRaster.fileName;
_outfilename = dstRaster.fileName;
_outResolutionX = dstRaster.ResolutionX;
_outResolutionY = dstRaster.ResolutionY;
_dstEnvelope = _prjSettings.OutEnvelope = new PrjEnvelope(
dstRaster.CoordEnvelope.MinX, dstRaster.CoordEnvelope.MaxX,
dstRaster.CoordEnvelope.MinY, dstRaster.CoordEnvelope.MaxY);
try
{
Size outSize = new Size(dstRaster.Width, dstRaster.Height);
//角度输出，其中的BANDNAME需要在ReadyAngleFiles()方法中获取
string[] angleOptions = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"WITHHDR=TRUE",
"SPATIALREF=" + _dstSpatialRef.ToProj4String(),
"MAPINFO={" + 1 + "," + 1 + "}:{" + _prjSettings.OutEnvelope.MinX + "," + _prjSettings.OutEnvelope.MaxY + "}:{" + _outResolutionX + "," + _outResolutionY + "}"
};
ReadyAngleFiles(_angleDataProvider, _outfilename, _prjSettings, outSize, angleOptions);
ProjectToLDF(srcRaster, dstRaster, beginBandIndex, progressCallback);
return(dstRaster);
}
catch (IOException ex)
{
if (ex.Message == "磁盘空间不足。\r\n" && File.Exists(_outfilename))
{
File.Delete(_outfilename);
}
throw ex;
}
finally
{
if (dstRaster != null)
{
dstRaster.Dispose();
dstRaster = null;
}
}
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
if (_curSession == null)
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
}
/// <summary>
///
/// 修改记录
/// --------------------------------------------
/// 修改日期：2013-80-29
/// 修改人：罗战克
/// 修改内容：
/// 计算最大输出范围，原先为计算原始数据所有点的坐标，
/// 现修改为使用采样读取原数据地理坐标的方式（高度和宽度最多采样1000个点），以提高速度
/// --------------------------------------------
///
/// </summary>
/// <param name="srcRaster"></param>
/// <param name="prjSettings"></param>
/// <param name="dstSpatialRef"></param>
/// <param name="progressCallback"></param>
///
public override void Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
Project(srcRaster, prjSettings, dstSpatialRef, progressCallback, 1, 1);
}
private void ReadyArgs(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster.DataIdentify != null)
{
string satellite = srcRaster.DataIdentify.Satellite;
//if (satellite == "FY3A")//FY3A MERSI250米数据已经经过处理，不需要再执行去条带操作
//{
// _sacnLineWidth = 0;
//}
}
float resolutionScale = 1f;
_readyProgress = 0;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备相关参数");
}
_prjSettings = ArgsCheck(srcRaster, prjSettings);
CheckIs0250(srcRaster);
_dstSpatialRef = dstSpatialRef;
switch (_dataType)
{
case "1KM":
//整轨投影时候去除左右锯齿，分块投影不需要
_left = 10;
_right = 10;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty) //整轨投影
{
MemoryHelper.MemoryNeed(500, 1536);
}
else
{
MemoryHelper.MemoryNeed(400, 1536); //剩余900MB,已使用1.2GB
}
TryCreateDefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
DoSession(srcRaster, srcRaster, _dstSpatialRef, _prjSettings, progressCallback);
_angleDataProvider = srcRaster;
break;
case "QKM":
resolutionScale = 4f;
_left = 20;
_right = 20;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
MemoryHelper.MemoryNeed(800, 1280); //整幅投影对内存做限制，系统剩余内存不低于1.5GB，应用程序已使用内存不超过600MB
}
else
{
MemoryHelper.MemoryNeed(600, 1280); //剩余900MB,已使用1.2GB
}
TryCreate0250DefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
DoSession(srcRaster, _prjSettings.SecondaryOrbitRaster, _dstSpatialRef, _prjSettings, progressCallback);
_angleDataProvider = _prjSettings.SecondaryOrbitRaster;
break;
default:
break;
}
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
_prjSettings.OutEnvelope = _maxPrjEnvelope;
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
};
}
else
{
GetEnvelope(_xs, _ys, _srcLocationSize.Width, _srcLocationSize.Height, _prjSettings.OutEnvelope, out _orbitBlock);
if (_orbitBlock == null || _orbitBlock.Width <= 0 || _orbitBlock.Height <= 0)
{
throw new Exception("数据不在目标区间内");
}
float invalidPresent = (_orbitBlock.Width * _orbitBlock.Height * resolutionScale) / (_srcLocationSize.Width * _srcLocationSize.Height);
if (invalidPresent < 0.0001f)
{
throw new Exception("数据占轨道数据比例太小,有效率" + invalidPresent * 100 + "%");
}
if (invalidPresent > 0.60)
{
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
}
}
;
}
//地理坐标投影,下面简单的对地理坐标投影的范围作了限制，不大严谨，仅适合目前的状况。
if (_dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
{
throw new Exception(string.Format("高纬度数据，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
}
//以下参数用于投影
_dstEnvelope = _prjSettings.OutEnvelope;
if (!_dstEnvelope.IntersectsWith(_maxPrjEnvelope))
{
throw new Exception("数据不在目标区间内");
}
_outResolutionX = _prjSettings.OutResolutionX;
_outResolutionY = _prjSettings.OutResolutionY;
_outFormat = _prjSettings.OutFormat;
_outfilename = _prjSettings.OutPathAndFileName;
_dstProj4 = _dstSpatialRef.ToProj4String();
_dstBandCount = _prjBands.Length;
_dstSize = _prjSettings.OutSize;
_isRadiation = _prjSettings.IsRadiation;
_isSolarZenith = _prjSettings.IsSolarZenith;
_isSensorZenith = _prjSettings.IsSensorZenith;
}
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
if (dstRaster == null && prjSettings.OutPathAndFileName == null)
{
throw new ArgumentNullException("dstRaster");
}
try
{
FY3_VIRR_PrjSettings fy3prjSettings = prjSettings as FY3_VIRR_PrjSettings;
ISpatialReference dstSpatialRef = dstRaster.SpatialRef;
TryCreateDefaultArgs(srcRaster, fy3prjSettings, ref dstSpatialRef);
DoSession(srcRaster, _geoDataProvider, dstSpatialRef, fy3prjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
if (dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
{
throw new Exception(string.Format("高纬度数据[>80]，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
}
if (dstRaster == null)
{
PrjEnvelope dstEnvelope = prjSettings.OutEnvelope;
string outFormat = prjSettings.OutFormat;
string outfilename = prjSettings.OutPathAndFileName;
string dstProj4 = dstSpatialRef.ToProj4String();
int dstBandCount = _prjBands.Length;
Size srcSize = new Size(srcRaster.Width, srcRaster.Height);
Size dstSize = prjSettings.OutSize;
IRasterDataDriver drv = GeoDataDriver.GetDriverByName("LDF") as IRasterDataDriver;
string[] options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"WITHHDR=TRUE",
"SPATIALREF=" + dstProj4,
"MAPINFO={" + 1 + "," + 1 + "}:{" + dstEnvelope.MinX + "," + dstEnvelope.MaxY + "}:{" + prjSettings.OutResolutionX + "," + prjSettings.OutResolutionY + "}"
};
dstRaster = drv.Create(outfilename, dstSize.Width, dstSize.Height, dstBandCount, enumDataType.UInt16, options) as IRasterDataProvider;
}
ProjectToLDF(srcRaster, dstRaster, 0, progressCallback);
return(dstRaster);
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
public override void Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
try
{
ReadyArgs(srcRaster, prjSettings, dstSpatialRef, progressCallback);
IRasterDataProvider outwriter = null;
try
{
//string[] options = new string[]{
// "INTERLEAVE=BSQ",
// "VERSION=LDF",
// "WITHHDR=TRUE",
// "SPATIALREF=" + _dstSpatialRef.ToProj4String(),
// "MAPINFO={" + 1 + "," + 1 + "}:{" + _prjSettings.OutEnvelope.MinX + "," + _prjSettings.OutEnvelope.MaxY + "}:{" + _outResolutionX + "," + _outResolutionY + "}"
// ,"BANDNAMES="+ BandNameString(_prjSettings.OutBandNos)
//};
List <string> options = new List <string>();
options.Add("INTERLEAVE=BSQ");
options.Add("VERSION=LDF");
options.Add("WITHHDR=TRUE");
options.Add("SPATIALREF=" + _dstSpatialRef.ToProj4String());
options.Add("MAPINFO={" + 1 + "," + 1 + "}:{" + _prjSettings.OutEnvelope.MinX + "," + _prjSettings.OutEnvelope.MaxY + "}:{" + _outResolutionX + "," + _outResolutionY + "}");
options.Add("SENSOR=MERSI");
if (srcRaster.DataIdentify != null)
{
string satellite = srcRaster.DataIdentify.Satellite;
DateTime dt = srcRaster.DataIdentify.OrbitDateTime;
bool asc = srcRaster.DataIdentify.IsAscOrbitDirection;
if (!string.IsNullOrWhiteSpace(satellite))
{
options.Add("SATELLITE=" + satellite);
}
if (dt != DateTime.MinValue && dt != DateTime.MaxValue)
{
options.Add("DATETIME=" + dt.ToString("yyyy/MM/dd HH:mm"));
}
options.Add("ORBITDIRECTION=" + (asc ? "ASC" : "DESC"));
}
List <string> op1 = new List <string>(options);
op1.Add("BANDNAMES=" + BandNameString(_prjSettings.OutBandNos));
outwriter = CreateOutFile(_outfilename, _dstBandCount, _dstSize, op1.ToArray());
ReadyAngleFiles(_angleDataProvider, _outfilename, _prjSettings, _dstSize, options.ToArray());
ProjectToLDF(srcRaster, outwriter, 0, progressCallback);
}
catch (IOException ex)
{
if (ex.Message == "磁盘空间不足。\r\n" && File.Exists(_outfilename))
{
File.Delete(_outfilename);
}
throw ex;
}
finally
{
if (outwriter != null)
{
outwriter.Dispose();
outwriter = null;
}
}
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
if (_curSession == null)
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
}
private void ProjectToLDF(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback, double weight, float zoom)
{
//...此处计算分块大小。
string outFilename = prjSettings.OutPathAndFileName;
CheckAndCreateDir(Path.GetDirectoryName(outFilename));
using (IRasterDataProvider prdWriter = CreateOutFile(srcRaster, prjSettings, dstSpatialRef, srcRaster.DataType))
{
switch (srcRaster.DataType)
{
case enumDataType.Atypism:
throw new Exception("不支持混合类型数据");
break;
case enumDataType.Bits:
ProjectRaster <sbyte>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Byte:
ProjectRaster <byte>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Double:
ProjectRaster <Double>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Float:
ProjectRaster <float>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Int16:
ProjectRaster <Int16>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Int32:
ProjectRaster <Int32>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Int64:
ProjectRaster <Int64>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.UInt16:
ProjectRaster <UInt16>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.UInt32:
ProjectRaster <UInt32>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.UInt64:
ProjectRaster <UInt64>(srcRaster, prjSettings, progressCallback, prdWriter, 0, weight, zoom);
break;
case enumDataType.Unknow:
default:
throw new Exception("未知数据类型");
break;
}
}
GC.Collect();
}