diff options
Diffstat (limited to 'c++/examples/h5tutr_extend.cpp')
| -rw-r--r-- | c++/examples/h5tutr_extend.cpp | 87 |
1 files changed, 39 insertions, 48 deletions
diff --git a/c++/examples/h5tutr_extend.cpp b/c++/examples/h5tutr_extend.cpp index 94e9acf..71a8ffb 100644 --- a/c++/examples/h5tutr_extend.cpp +++ b/c++/examples/h5tutr_extend.cpp @@ -24,34 +24,28 @@ using std::endl; #include "H5Cpp.h" using namespace H5; -const H5std_string FILE_NAME("h5tutr_extend.h5"); -const H5std_string DATASETNAME("ExtendibleArray"); +const H5std_string FILE_NAME("h5tutr_extend.h5"); +const H5std_string DATASETNAME("ExtendibleArray"); -int main (void) +int +main(void) { - hsize_t dims[2] = {3,3}; // dataset dimensions at creation - hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED}; - hsize_t chunk_dims[2] ={2, 5}; - int data[3][3] = { {1, 1, 1}, // data to write - {1, 1, 1}, - {1, 1, 1} }; - - // Variables used in extending and writing to the extended portion of dataset - - hsize_t size[2]; - hsize_t offset[2]; - hsize_t dimsext[2] = {7, 3}; // extend dimensions - int dataext[7][3] = { {2, 3, 4}, - {2, 3, 4}, - {2, 3, 4}, - {2, 3, 4}, - {2, 3, 4}, - {2, 3, 4}, - {2, 3, 4} }; + hsize_t dims[2] = {3, 3}; // dataset dimensions at creation + hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED}; + hsize_t chunk_dims[2] = {2, 5}; + int data[3][3] = {{1, 1, 1}, // data to write + {1, 1, 1}, + {1, 1, 1}}; + + // Variables used in extending and writing to the extended portion of dataset + + hsize_t size[2]; + hsize_t offset[2]; + hsize_t dimsext[2] = {7, 3}; // extend dimensions + int dataext[7][3] = {{2, 3, 4}, {2, 3, 4}, {2, 3, 4}, {2, 3, 4}, {2, 3, 4}, {2, 3, 4}, {2, 3, 4}}; // 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 Exception::dontPrint(); @@ -63,15 +57,15 @@ int main (void) // for the instance 'dataspace'. It can be deleted and used again // later for another dataspace. An HDF5 identifier can be closed // by the destructor or the method 'close()'. - DataSpace *dataspace = new DataSpace (2, dims, maxdims); + DataSpace *dataspace = new DataSpace(2, dims, maxdims); // Modify dataset creation property to enable chunking DSetCreatPropList prop; prop.setChunk(2, chunk_dims); // Create the chunked dataset. Note the use of pointer. - DataSet *dataset = new DataSet(file.createDataSet( DATASETNAME, - PredType::STD_I32BE, *dataspace, prop) ); + DataSet *dataset = + new DataSet(file.createDataSet(DATASETNAME, PredType::STD_I32BE, *dataspace, prop)); // Write data to dataset. dataset->write(data, PredType::NATIVE_INT); @@ -82,9 +76,9 @@ int main (void) dataset->extend(size); // Select a hyperslab in extended portion of the dataset. - DataSpace *filespace = new DataSpace(dataset->getSpace ()); - offset[0] = 3; - offset[1] = 0; + DataSpace *filespace = new DataSpace(dataset->getSpace()); + offset[0] = 3; + offset[1] = 0; filespace->selectHyperslab(H5S_SELECT_SET, dimsext, offset); // Define memory space. @@ -105,25 +99,26 @@ int main (void) // Re-open the file and read the data back // --------------------------------------- - int rdata[10][3]; - int i,j, rank, rank_chunk; - hsize_t chunk_dimsr[2], dimsr[2]; + int rdata[10][3]; + int i, j, rank, rank_chunk; + hsize_t chunk_dimsr[2], dimsr[2]; // Open the file and dataset. file.openFile(FILE_NAME, H5F_ACC_RDONLY); - dataset = new DataSet(file.openDataSet( DATASETNAME)); + dataset = new DataSet(file.openDataSet(DATASETNAME)); // Get the dataset's dataspace and creation property list. filespace = new DataSpace(dataset->getSpace()); - prop = dataset->getCreatePlist(); + prop = dataset->getCreatePlist(); // Get information to obtain memory dataspace. - rank = filespace->getSimpleExtentNdims(); + rank = filespace->getSimpleExtentNdims(); herr_t status_n = filespace->getSimpleExtentDims(dimsr); if (H5D_CHUNKED == prop.getLayout()) - rank_chunk = prop.getChunk(rank, chunk_dimsr); - cout << "rank chunk = " << rank_chunk << endl;; + rank_chunk = prop.getChunk(rank, chunk_dimsr); + cout << "rank chunk = " << rank_chunk << endl; + ; memspace = new DataSpace(rank, dimsr, NULL); dataset->read(rdata, PredType::NATIVE_INT, *memspace, *filespace); @@ -131,7 +126,7 @@ int main (void) cout << endl; for (j = 0; j < dimsr[0]; j++) { for (i = 0; i < dimsr[1]; i++) - cout << " " << rdata[j][i]; + cout << " " << rdata[j][i]; cout << endl; } @@ -142,29 +137,25 @@ int main (void) delete dataset; file.close(); - } // end of try block + } // end of try block // catch failure caused by the H5File operations - catch(FileIException error) - { + catch (FileIException error) { error.printErrorStack(); return -1; } // catch failure caused by the DataSet operations - catch(DataSetIException error) - { + catch (DataSetIException error) { error.printErrorStack(); return -1; } // catch failure caused by the DataSpace operations - catch(DataSpaceIException error) - { + catch (DataSpaceIException error) { error.printErrorStack(); return -1; } - return 0; // successfully terminated + return 0; // successfully terminated } - |