private static Hdf4FileAttr[] getHdf4FileAttrs(string[] f4names)
{
var hdf4FileAttrs = new Hdf4FileAttr[f4names.Length];
for (int i = 0; i < f4names.Length; i++)
{
hdf4FileAttrs[i] = new Hdf4FileAttr(f4names[i]);
}
return(hdf4FileAttrs);
}
public bool IsSameClassHdf4(Hdf4FileAttr attr)
{
if (HDFEOSVersion != attr.HDFEOSVersion)
{
return(false);
}
if (GridName != attr.GridName)
{
return(false);
}
if (Projection != attr.Projection)
{
return(false);
}
if (ProjParams != attr.ProjParams)
{
return(false);
}
if (XDim != attr.XDim)
{
return(false);
}
if (YDim != attr.YDim)
{
return(false);
}
//if (XMin - attr.XMin > double.Epsilon)
// return false;
//if (YMin - attr.YMin > double.Epsilon)
// return false;
//if (XMax - attr.XMax > double.Epsilon)
// return false;
//if (YMax - attr.YMax > double.Epsilon)
// return false;
if (CellWidth - attr.CellWidth > CellWidth / 1000000)
{
return(false);
}
if (CellHeight - attr.CellHeight > CellWidth / 1000000)
{
return(false);
}
if (DataFields != null && !DataFields.IsSameDataFields(attr.DataFields))
{
return(false);
}
return(true);
}
private static void ConvertHdf4To5BySds <T>(Hdf4FileAttrs hdf4FileAttrs, int nyf5, int nxf5, int k, int rank,
H5FileId fileId, string sdName, HDF4Helper.DataTypeDefinitions dtaDefinitions,
Action <string, int, int> messageAction)
{
T[,] data = new T[nyf5, nxf5];
//foreach (Hdf4FileAttr hdf4FileAttr in hdf4FileAttrs)
for (int i = 0; i < hdf4FileAttrs.Count; i++)
{
Hdf4FileAttr hdf4FileAttr = hdf4FileAttrs[i];
if (messageAction != null)
{
messageAction(String.Format("正在转换数据集 {0}", sdName), k, i);
}
H4SDS sd = hdf4FileAttr.H4File.Datasets[k];
GetDataByHdf4(sd, rank, hdf4FileAttr, data);
}
// 保存数据
// Describe the size of the array and create the data space for fixed
// size dataset.
long[] dims = new long[rank];
dims[0] = Convert.ToInt64(nyf5);
dims[1] = Convert.ToInt64(nxf5);
H5DataSpaceId dspaceId = H5S.create_simple(rank, dims);
H5T.H5Type h5Type = Utility.GetH5Type(dtaDefinitions);
// Define datatype for the data in the file.
H5DataTypeId dtypeId = H5T.copy(h5Type);
// Create the data set DATASETNAME.
H5DataSetId dsetId = H5D.create(fileId, sdName, dtypeId, dspaceId);
// Write the one-dimensional data set array
H5D.write(dsetId, new H5DataTypeId(h5Type), new H5Array <T>(data));//H5A
HDFAttributeDef[] attributeDef5s = hdf4FileAttrs[0].DatasetsAttributeDefs[k];
foreach (HDFAttributeDef attributeDef5 in attributeDef5s)
{
WriteHdfAttributes.WriteHdfAttribute(dsetId, attributeDef5);
}
// Close dataset and file.
H5D.close(dsetId);
}
public Hdf4FileAttr Clone()
{
var hdf4FileAttr = new Hdf4FileAttr
{
CellHeight = CellHeight,
CellWidth = CellWidth,
DataFields = DataFields.Clone(),
GridName = GridName,
H4File = H4File,
HDFEOSVersion = HDFEOSVersion,
ProjParams = ProjParams,
Projection = ProjParams,
XDim = XDim,
YDim = YDim,
XMin = XMin,
XMax = XMax,
YMin = YMin,
YMax = YMax
};
return(hdf4FileAttr);
}
private static bool Validate(Hdf4FileAttr[] hdf4FileAttrs)
{
if (hdf4FileAttrs.Length < 1)
{
return(false);
}
if (hdf4FileAttrs.Length == 1)
{
return(true);
}
Hdf4FileAttr hdf4FileAttr = hdf4FileAttrs[0];
for (int i = 1; i < hdf4FileAttrs.Length; i++)
{
if (!hdf4FileAttr.IsSameClassHdf4(hdf4FileAttrs[i]))
{
return(false);
}
}
return(true);
}
private static void GetDataByHdf4 <T>(H4SDS sd, int rank, Hdf4FileAttr hdf4FileAttr, T[,] data)
{
int xOffset = hdf4FileAttr.XOffset;
int yOffset = hdf4FileAttr.YOffset;
if (rank == 2)
{
int nx = hdf4FileAttr.XDim;
int ny = hdf4FileAttr.YDim;
int buffersize = nx * ny;
// int typesize = HDFDataType.GetSize(sd.Datatype);
T[] buffer = new T[buffersize];
GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try
{
IntPtr bufferPtr = h.AddrOfPinnedObject();
sd.Read(new int[] { 0, 0 }, null, sd.Dimsizes, bufferPtr);
}
finally
{
h.Free();
}
// Data and input buffer initialization.
for (int j = 0; j < ny; j++)
{
for (int i = 0; i < nx; i++)
{
int index = j * nx + i;
int iIndex = i + xOffset;
int jIndex = j + yOffset;
data[jIndex, iIndex] = buffer[index];
}
}
}
}
private static void ConvertHdf4To5BySds <T>(Hdf4FileAttrs hdf4FileAttrs, int nyf5, int nxf5, int k, int rank,
H5FileId fileId, string sdName, HDF4Helper.DataTypeDefinitions dtaDefinitions, Action <string, int, int> messageAction,
SEnvelope envelopeNew, T fillValue, float dstResolution, ISpatialReference dstSpatialReference, ref UInt16[] rows, ref UInt16[] cols, ref Size srcStepSize, ref Size outSize)
{
T[,] data = new T[nyf5, nxf5];
H5DataSetId dsetId = null;
T[,] dataNew = null;
SDataByProject <T> dataByProject = null;
try
{
for (int i = 0; i < hdf4FileAttrs.Count; i++)
{
Hdf4FileAttr hdf4FileAttr = hdf4FileAttrs[i];
if (messageAction != null)
{
messageAction(String.Format("正在转换数据集 {0}", sdName), k, i);
}
H4SDS sd = hdf4FileAttr.H4File.Datasets[k];
GetDataByHdf4(sd, rank, hdf4FileAttr, data);
}
dataNew = data;
if (outSize.IsEmpty)
{
outSize = new Size(nxf5, nyf5);
}
if (dstSpatialReference != null && dstSpatialReference.IsSame(SpatialReference.GetDefault()))
{
if (rows == null && cols == null)
{
PrjEnvelope srcEnvelope = new PrjEnvelope(hdf4FileAttrs.Hdf4FileAttr.Envelope.XMin, hdf4FileAttrs.Hdf4FileAttr.Envelope.XMax, hdf4FileAttrs.Hdf4FileAttr.Envelope.YMin, hdf4FileAttrs.Hdf4FileAttr.Envelope.YMax);
PrjEnvelope outenvelpoe = new PrjEnvelope(envelopeNew.XMin, envelopeNew.XMax, envelopeNew.YMin, envelopeNew.YMax);
FilePrjSettings prjSetting = new FilePrjSettings();
prjSetting.OutEnvelope = outenvelpoe;
prjSetting.OutResolutionX = dstResolution;
prjSetting.OutResolutionY = dstResolution;
outSize = prjSetting.OutSize;
Size inSize = new Size(hdf4FileAttrs.Hdf4FileAttr.XDim, hdf4FileAttrs.Hdf4FileAttr.YDim);
float dstResoultion = dstResolution;
float srcResoultionX = (float)(hdf4FileAttrs.Hdf4FileAttr.CellWidth);
float srcResoultionY = (float)(hdf4FileAttrs.Hdf4FileAttr.CellHeight);
dataByProject = GetDataByProject <T>(dataNew, srcEnvelope, outenvelpoe, inSize, outSize, dstResoultion, srcResoultionX, srcResoultionY, fillValue, dstSpatialReference, out rows, out cols, out srcStepSize);
}
else
{
T[,] dstData = new T[outSize.Height, outSize.Width];
dataByProject = DoProject <T>(dataNew, fillValue, ref outSize, ref srcStepSize, dstData, rows, cols);
}
if (dataByProject != null)
{
dataNew = dataByProject.Data;
}
}
long[] dims = new long[rank];
dims[0] = Convert.ToInt64(outSize.Height);
dims[1] = Convert.ToInt64(outSize.Width);
H5DataSpaceId dspaceId = H5S.create_simple(rank, dims);
H5T.H5Type h5Type = Utility.GetH5Type(dtaDefinitions);
// Define datatype for the data in the file.
H5DataTypeId dtypeId = H5T.copy(h5Type);
// Create the data set DATASETNAME.
dsetId = H5D.create(fileId, sdName, dtypeId, dspaceId);
// Write the one-dimensional data set array
H5D.write(dsetId, new H5DataTypeId(h5Type), new H5Array <T>(dataNew));//H5A
HDFAttributeDef[] attributeDef5s = hdf4FileAttrs[0].DatasetsAttributeDefs[k];
foreach (HDFAttributeDef attributeDef5 in attributeDef5s)
{
WriteHdfAttributes.WriteHdfAttribute(dsetId, attributeDef5);
}
}
finally
{
// Close dataset and file.
if (dsetId != null)
{
H5D.close(dsetId);
}
if (data != null)
{
data = null;
}
if (dataNew != null)
{
dataNew = null;
}
GC.Collect();
}
}
