diff options
Diffstat (limited to 'c++/examples/writedata.cpp')
| -rw-r--r-- | c++/examples/writedata.cpp | 200 |
1 files changed, 110 insertions, 90 deletions
diff --git a/c++/examples/writedata.cpp b/c++/examples/writedata.cpp index f8a1cea..afbd8dc 100644 --- a/c++/examples/writedata.cpp +++ b/c++/examples/writedata.cpp @@ -6,7 +6,7 @@ * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the COPYING file, which can be found at the root of the source code * - * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ @@ -29,42 +29,42 @@ #ifndef H5_NO_NAMESPACE #ifndef H5_NO_STD - using std::cout; - using std::endl; -#endif // H5_NO_STD +using std::cout; +using std::endl; +#endif // H5_NO_STD #endif #include "H5Cpp.h" #ifndef H5_NO_NAMESPACE - using namespace H5; +using namespace H5; #endif -const H5std_string FILE_NAME( "Select.h5" ); -const H5std_string DATASET_NAME( "Matrix in file" ); -const int MSPACE1_RANK = 1; // Rank of the first dataset in memory -const int MSPACE1_DIM = 50; // Dataset size in memory -const int MSPACE2_RANK = 1; // Rank of the second dataset in memory -const int MSPACE2_DIM = 4; // Dataset size in memory -const int FSPACE_RANK = 2; // Dataset rank as it is stored in the file -const int FSPACE_DIM1 = 8; // Dimension sizes of the dataset as it is -const int FSPACE_DIM2 = 12; // stored in the file -const int MSPACE_RANK = 2; // Rank of the first dataset in memory -const int MSPACE_DIM1 = 8; // We will read dataset back from the file -const int MSPACE_DIM2 = 9; // to the dataset in memory with these - // dataspace parameters -const int NPOINTS = 4; // Number of points that will be selected - // and overwritten - -int main (void) +const H5std_string FILE_NAME("Select.h5"); +const H5std_string DATASET_NAME("Matrix in file"); +const int MSPACE1_RANK = 1; // Rank of the first dataset in memory +const int MSPACE1_DIM = 50; // Dataset size in memory +const int MSPACE2_RANK = 1; // Rank of the second dataset in memory +const int MSPACE2_DIM = 4; // Dataset size in memory +const int FSPACE_RANK = 2; // Dataset rank as it is stored in the file +const int FSPACE_DIM1 = 8; // Dimension sizes of the dataset as it is +const int FSPACE_DIM2 = 12; // stored in the file +const int MSPACE_RANK = 2; // Rank of the first dataset in memory +const int MSPACE_DIM1 = 8; // We will read dataset back from the file +const int MSPACE_DIM2 = 9; // to the dataset in memory with these + // dataspace parameters +const int NPOINTS = 4; // Number of points that will be selected + // and overwritten + +int +main(void) { - int i,j; // loop indices */ + int i, j; // loop indices */ /* * Try block to detect exceptions raised by any of the calls inside it */ - try - { + try { /* * Turn off the auto-printing when failure occurs so that we can * handle the errors appropriately @@ -74,47 +74,51 @@ int main (void) /* * Create a file. */ - H5File* file = new H5File( FILE_NAME, H5F_ACC_TRUNC ); + H5File *file = new H5File(FILE_NAME, H5F_ACC_TRUNC); /* - * Create property list for a dataset and set up fill values. - */ - int fillvalue = 0; /* Fill value for the dataset */ + * Create property list for a dataset and set up fill values. + */ + int fillvalue = 0; /* Fill value for the dataset */ DSetCreatPropList plist; plist.setFillValue(PredType::NATIVE_INT, &fillvalue); /* * Create dataspace for the dataset in the file. */ - hsize_t fdim[] = {FSPACE_DIM1, FSPACE_DIM2}; // dim sizes of ds (on disk) - DataSpace fspace( FSPACE_RANK, fdim ); + hsize_t fdim[] = {FSPACE_DIM1, FSPACE_DIM2}; // dim sizes of ds (on disk) + DataSpace fspace(FSPACE_RANK, fdim); /* * Create dataset and write it into the file. */ - DataSet* dataset = new DataSet(file->createDataSet( - DATASET_NAME, PredType::NATIVE_INT, fspace, plist)); + DataSet *dataset = + new DataSet(file->createDataSet(DATASET_NAME, PredType::NATIVE_INT, fspace, plist)); /* * Select hyperslab for the dataset in the file, using 3x2 blocks, * (4,3) stride and (2,4) count starting at the position (0,1). */ - hsize_t start[2]; // Start of hyperslab + hsize_t start[2]; // Start of hyperslab hsize_t stride[2]; // Stride of hyperslab hsize_t count[2]; // Block count hsize_t block[2]; // Block sizes - start[0] = 0; start[1] = 1; - stride[0] = 4; stride[1] = 3; - count[0] = 2; count[1] = 4; - block[0] = 3; block[1] = 2; - fspace.selectHyperslab( H5S_SELECT_SET, count, start, stride, block); + start[0] = 0; + start[1] = 1; + stride[0] = 4; + stride[1] = 3; + count[0] = 2; + count[1] = 4; + block[0] = 3; + block[1] = 2; + fspace.selectHyperslab(H5S_SELECT_SET, count, start, stride, block); /* * Create dataspace for the first dataset. */ - hsize_t dim1[] = {MSPACE1_DIM}; /* Dimension size of the first dataset - (in memory) */ - DataSpace mspace1( MSPACE1_RANK, dim1 ); + hsize_t dim1[] = {MSPACE1_DIM}; /* Dimension size of the first dataset + (in memory) */ + DataSpace mspace1(MSPACE1_RANK, dim1); /* * Select hyperslab. @@ -125,7 +129,7 @@ int main (void) stride[0] = 1; count[0] = 48; block[0] = 1; - mspace1.selectHyperslab( H5S_SELECT_SET, count, start, stride, block); + mspace1.selectHyperslab(H5S_SELECT_SET, count, start, stride, block); /* * Write selection from the vector buffer to the dataset in the file. @@ -140,7 +144,7 @@ int main (void) * 0 41 42 0 43 44 0 45 46 0 47 48 * 0 0 0 0 0 0 0 0 0 0 0 0 */ - int vector[MSPACE1_DIM]; // vector buffer for dset + int vector[MSPACE1_DIM]; // vector buffer for dset /* * Buffer initialization. @@ -149,7 +153,7 @@ int main (void) for (i = 1; i < MSPACE1_DIM - 1; i++) vector[i] = i; - dataset->write( vector, PredType::NATIVE_INT, mspace1, fspace ); + dataset->write(vector, PredType::NATIVE_INT, mspace1, fspace); /* * Reset the selection for the file dataspace fid. @@ -159,27 +163,31 @@ int main (void) /* * Create dataspace for the second dataset. */ - hsize_t dim2[] = {MSPACE2_DIM}; /* Dimension size of the second dataset - (in memory */ - DataSpace mspace2( MSPACE2_RANK, dim2 ); + hsize_t dim2[] = {MSPACE2_DIM}; /* Dimension size of the second dataset + (in memory */ + DataSpace mspace2(MSPACE2_RANK, dim2); /* * Select sequence of NPOINTS points in the file dataspace. */ hsize_t coord[NPOINTS][FSPACE_RANK]; /* Array to store selected points from the file dataspace */ - coord[0][0] = 0; coord[0][1] = 0; - coord[1][0] = 3; coord[1][1] = 3; - coord[2][0] = 3; coord[2][1] = 5; - coord[3][0] = 5; coord[3][1] = 6; + coord[0][0] = 0; + coord[0][1] = 0; + coord[1][0] = 3; + coord[1][1] = 3; + coord[2][0] = 3; + coord[2][1] = 5; + coord[3][0] = 5; + coord[3][1] = 6; - fspace.selectElements( H5S_SELECT_SET, NPOINTS, (const hsize_t *)coord); + fspace.selectElements(H5S_SELECT_SET, NPOINTS, (const hsize_t *)coord); /* * Write new selection of points to the dataset. */ - int values[] = {53, 59, 61, 67}; /* New values to be written */ - dataset->write( values, PredType::NATIVE_INT, mspace2, fspace ); + int values[] = {53, 59, 61, 67}; /* New values to be written */ + dataset->write(values, PredType::NATIVE_INT, mspace2, fspace); /* * File dataset should look like this: @@ -203,12 +211,12 @@ int main (void) /* * Open the file. */ - file = new H5File( FILE_NAME, H5F_ACC_RDONLY ); + file = new H5File(FILE_NAME, H5F_ACC_RDONLY); /* * Open the dataset. */ - dataset = new DataSet( file->openDataSet( DATASET_NAME )); + dataset = new DataSet(file->openDataSet(DATASET_NAME)); /* * Get dataspace of the dataset. @@ -223,10 +231,14 @@ int main (void) * 0 59 0 61 * */ - start[0] = 1; start[1] = 2; - block[0] = 1; block[1] = 1; - stride[0] = 1; stride[1] = 1; - count[0] = 3; count[1] = 4; + start[0] = 1; + start[1] = 2; + block[0] = 1; + block[1] = 1; + stride[0] = 1; + stride[1] = 1; + count[0] = 3; + count[1] = 4; fspace.selectHyperslab(H5S_SELECT_SET, count, start, stride, block); /* @@ -242,10 +254,14 @@ int main (void) * 19 20 * 0 61 */ - start[0] = 2; start[1] = 4; - block[0] = 1; block[1] = 1; - stride[0] = 1; stride[1] = 1; - count[0] = 6; count[1] = 5; + start[0] = 2; + start[1] = 4; + block[0] = 1; + block[1] = 1; + stride[0] = 1; + stride[1] = 1; + count[0] = 6; + count[1] = 5; fspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block); /* @@ -261,15 +277,23 @@ int main (void) * Select two hyperslabs in memory. Hyperslabs has the same * size and shape as the selected hyperslabs for the file dataspace. */ - start[0] = 0; start[1] = 0; - block[0] = 1; block[1] = 1; - stride[0] = 1; stride[1] = 1; - count[0] = 3; count[1] = 4; + start[0] = 0; + start[1] = 0; + block[0] = 1; + block[1] = 1; + stride[0] = 1; + stride[1] = 1; + count[0] = 3; + count[1] = 4; mspace.selectHyperslab(H5S_SELECT_SET, count, start, stride, block); - start[0] = 1; start[1] = 2; - block[0] = 1; block[1] = 1; - stride[0] = 1; stride[1] = 1; - count[0] = 6; count[1] = 5; + start[0] = 1; + start[1] = 2; + block[0] = 1; + block[1] = 1; + stride[0] = 1; + stride[1] = 1; + count[0] = 6; + count[1] = 5; mspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block); /* @@ -297,9 +321,8 @@ int main (void) * 0 0 0 0 0 0 0 0 0 * 0 0 0 0 0 0 0 0 0 */ - for (i=0; i < MSPACE_DIM1; i++) - { - for(j=0; j < MSPACE_DIM2; j++) + for (i = 0; i < MSPACE_DIM1; i++) { + for (j = 0; j < MSPACE_DIM2; j++) cout << matrix_out[i][j] << " "; cout << endl; } @@ -309,28 +332,25 @@ int main (void) */ delete dataset; delete file; - } // end of try block + } // end of try block - // catch failure caused by the H5File operations - catch( FileIException error ) - { + // catch failure caused by the H5File operations + catch (FileIException error) { error.printError(); return -1; - } + } - // catch failure caused by the DataSet operations - catch( DataSetIException error ) - { + // catch failure caused by the DataSet operations + catch (DataSetIException error) { error.printError(); return -1; - } + } - // catch failure caused by the DataSpace operations - catch( DataSpaceIException error ) - { + // catch failure caused by the DataSpace operations + catch (DataSpaceIException error) { error.printError(); return -1; - } + } - return 0; + return 0; } |