I have this code that creates an hdf5 file. Then I output the extents using
getSimpleExtentNdims and getSimpleExtentdims to see if they match.
Unfortunately they dont. Why? C++ only please.
The code:
#include <H5Cpp.h>
#include <iostream>
using namespace std;
using namespace H5;
int main()
{
int rank = 1;
const int CHUNK_RANK = 1;
const int CHUNK_DIM = 365;
const hsize_t CHUNK_SPACE[2] = {(hsize_t)CHUNK_RANK, (hsize_t)CHUNK_DIM};
const int COMPRESSION = 6;
const double NULL_VALUE = -999.99;
int dimSize = 239400;
const hsize_t MAX_DIMS[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
H5File file("extenttest.h5", H5F_ACC_TRUNC);
DSetCreatPropList propList;
propList.setChunk(rank, CHUNK_SPACE);
propList.setDeflate(COMPRESSION);
propList.setFillValue(PredType::NATIVE_DOUBLE, &NULL_VALUE);
hsize_t dims[2] = {rank, (hsize_t)dimSize};
DataSpace dataSpace(rank, dims, MAX_DIMS);
DataSet dataset(file.createDataSet("60", PredType::NATIVE_DOUBLE,
dataSpace, propList));
cout << "Creating File extenttest.h5" << endl;
hsize_t dimsOut[2];
dimsOut[0] = 1;
dimsOut[1] = 2;
cout << "Set Dims: " << dimsOut[0] << " X " << dimsOut[1] << endl;
dataSpace.getSimpleExtentDims(dimsOut);
cout << "getSimpleExtentNdims: " << dataSpace.getSimpleExtentNdims() <<
endl;
cout << "dataspace set: " << rank << " X " << dimSize << endl;
cout << "dataspace grabbed: " << dimsOut[0] << " X " << dimsOut[1] <<
endl;
}
the output from the code:
Creating File extenttest.h5
Set Dims: 1 X 2
getSimpleExtentNdims: 1
dataspace set: 1 X 239400
dataspace grabbed: 1 X 2
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