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Whitespace cleanup

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This commit is contained in:
Allen Byrne
2019-09-18 12:11:12 -05:00
parent 4775b6a3d9
commit 6f34503a5a
16 changed files with 1009 additions and 1008 deletions
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300
c++/examples/chunks.cpp
View File

@@ -37,194 +37,194 @@ const int RANKC = 1;
int main (void)
{
hsize_t i, j;
hsize_t i, j;
// Try block to detect exceptions raised by any of the calls inside it
try
{
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Open the file and the dataset.
*/
H5File file( FILE_NAME, H5F_ACC_RDONLY );
DataSet dataset = file.openDataSet( DATASET_NAME );
/*
* Open the file and the dataset.
*/
H5File file( FILE_NAME, H5F_ACC_RDONLY );
DataSet dataset = file.openDataSet( DATASET_NAME );
/*
* Get filespace for rank and dimension
*/
DataSpace filespace = dataset.getSpace();
/*
* Get filespace for rank and dimension
*/
DataSpace filespace = dataset.getSpace();
/*
* Get number of dimensions in the file dataspace
*/
int rank = filespace.getSimpleExtentNdims();
/*
* Get number of dimensions in the file dataspace
*/
int rank = filespace.getSimpleExtentNdims();
/*
* Get and print the dimension sizes of the file dataspace
*/
hsize_t dims[2]; // dataset dimensions
rank = filespace.getSimpleExtentDims( dims );
cout << "dataset rank = " << rank << ", dimensions "
<< (unsigned long)(dims[0]) << " x "
<< (unsigned long)(dims[1]) << endl;
/*
* Get and print the dimension sizes of the file dataspace
*/
hsize_t dims[2]; // dataset dimensions
rank = filespace.getSimpleExtentDims( dims );
cout << "dataset rank = " << rank << ", dimensions "
<< (unsigned long)(dims[0]) << " x "
<< (unsigned long)(dims[1]) << endl;
/*
* Define the memory space to read dataset.
*/
DataSpace mspace1(RANK, dims);
/*
* Define the memory space to read dataset.
*/
DataSpace mspace1(RANK, dims);
/*
* Read dataset back and display.
*/
int data_out[NX][NY]; // buffer for dataset to be read
dataset.read( data_out, PredType::NATIVE_INT, mspace1, filespace );
/*
* Read dataset back and display.
*/
int data_out[NX][NY]; // buffer for dataset to be read
dataset.read( data_out, PredType::NATIVE_INT, mspace1, filespace );
cout << "\n";
cout << "Dataset: \n";
for (j = 0; j < dims[0]; j++)
{
for (i = 0; i < dims[1]; i++)
cout << data_out[j][i] << " ";
cout << endl;
}
cout << "\n";
cout << "Dataset: \n";
for (j = 0; j < dims[0]; j++)
{
for (i = 0; i < dims[1]; i++)
cout << data_out[j][i] << " ";
cout << endl;
}
/*
* dataset rank 2, dimensions 10 x 5
* chunk rank 2, dimensions 2 x 5
/*
* dataset rank 2, dimensions 10 x 5
* chunk rank 2, dimensions 2 x 5
* Dataset:
* 1 1 1 3 3
* 1 1 1 3 3
* 1 1 1 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
*/
* Dataset:
* 1 1 1 3 3
* 1 1 1 3 3
* 1 1 1 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
*/
/*
* Read the third column from the dataset.
* First define memory dataspace, then define hyperslab
* and read it into column array.
*/
hsize_t col_dims[1];
col_dims[0] = 10;
DataSpace mspace2( RANKC, col_dims );
/*
* Read the third column from the dataset.
* First define memory dataspace, then define hyperslab
* and read it into column array.
*/
hsize_t col_dims[1];
col_dims[0] = 10;
DataSpace mspace2( RANKC, col_dims );
/*
* Define the column (hyperslab) to read.
*/
hsize_t offset[2] = { 0, 2 };
hsize_t count[2] = { 10, 1 };
int column[10]; // buffer for column to be read
/*
* Define the column (hyperslab) to read.
*/
hsize_t offset[2] = { 0, 2 };
hsize_t count[2] = { 10, 1 };
int column[10]; // buffer for column to be read
/*
* Define hyperslab and read.
*/
filespace.selectHyperslab( H5S_SELECT_SET, count, offset );
dataset.read( column, PredType::NATIVE_INT, mspace2, filespace );
/*
* Define hyperslab and read.
*/
filespace.selectHyperslab( H5S_SELECT_SET, count, offset );
dataset.read( column, PredType::NATIVE_INT, mspace2, filespace );
cout << endl;
cout << "Third column: " << endl;
for (i = 0; i < 10; i++)
cout << column[i] << endl;
cout << endl;
cout << "Third column: " << endl;
for (i = 0; i < 10; i++)
cout << column[i] << endl;
/*
* Third column:
* 1
* 1
* 1
* 0
* 0
* 0
* 0
* 0
* 0
* 0
*/
/*
* Third column:
* 1
* 1
* 1
* 0
* 0
* 0
* 0
* 0
* 0
* 0
*/
/*
* Get creation properties list.
*/
DSetCreatPropList cparms = dataset.getCreatePlist();
/*
* Get creation properties list.
*/
DSetCreatPropList cparms = dataset.getCreatePlist();
/*
* Check if dataset is chunked.
*/
hsize_t chunk_dims[2];
int rank_chunk;
if( H5D_CHUNKED == cparms.getLayout() )
{
/*
* Get chunking information: rank and dimensions
*/
rank_chunk = cparms.getChunk( 2, chunk_dims);
cout << "chunk rank " << rank_chunk << "dimensions "
<< (unsigned long)(chunk_dims[0]) << " x "
<< (unsigned long)(chunk_dims[1]) << endl;
/*
* Check if dataset is chunked.
*/
hsize_t chunk_dims[2];
int rank_chunk;
if( H5D_CHUNKED == cparms.getLayout() )
{
/*
* Get chunking information: rank and dimensions
*/
rank_chunk = cparms.getChunk( 2, chunk_dims);
cout << "chunk rank " << rank_chunk << "dimensions "
<< (unsigned long)(chunk_dims[0]) << " x "
<< (unsigned long)(chunk_dims[1]) << endl;
/*
* Define the memory space to read a chunk.
*/
DataSpace mspace3( rank_chunk, chunk_dims );
/*
* Define the memory space to read a chunk.
*/
DataSpace mspace3( rank_chunk, chunk_dims );
/*
* Define chunk in the file (hyperslab) to read.
*/
offset[0] = 2;
offset[1] = 0;
count[0] = chunk_dims[0];
count[1] = chunk_dims[1];
filespace.selectHyperslab( H5S_SELECT_SET, count, offset );
/*
* Define chunk in the file (hyperslab) to read.
*/
offset[0] = 2;
offset[1] = 0;
count[0] = chunk_dims[0];
count[1] = chunk_dims[1];
filespace.selectHyperslab( H5S_SELECT_SET, count, offset );
/*
* Read chunk back and display.
*/
int chunk_out[2][5]; // buffer for chunk to be read
dataset.read( chunk_out, PredType::NATIVE_INT, mspace3, filespace );
cout << endl;
cout << "Chunk:" << endl;
for (j = 0; j < chunk_dims[0]; j++)
{
for (i = 0; i < chunk_dims[1]; i++)
cout << chunk_out[j][i] << " ";
cout << endl;
}
/*
* Chunk:
* 1 1 1 0 0
* 2 0 0 0 0
*/
}
/*
* Read chunk back and display.
*/
int chunk_out[2][5]; // buffer for chunk to be read
dataset.read( chunk_out, PredType::NATIVE_INT, mspace3, filespace );
cout << endl;
cout << "Chunk:" << endl;
for (j = 0; j < chunk_dims[0]; j++)
{
for (i = 0; i < chunk_dims[1]; i++)
cout << chunk_out[j][i] << " ";
cout << endl;
}
/*
* Chunk:
* 1 1 1 0 0
* 2 0 0 0 0
*/
}
} // end of try block
// catch failure caused by the H5File operations
catch( FileIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch( DataSetIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch( DataSpaceIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;
}

16
c++/examples/compound.cpp
View File

@@ -41,15 +41,15 @@ int main(void)
{
/* First structure and dataset*/
typedef struct s1_t {
int a;
float b;
double c;
int a;
float b;
double c;
} s1_t;
/* Second structure (subset of s1_t) and dataset*/
typedef struct s2_t {
double c;
int a;
double c;
int a;
} s2_t;
// Try block to detect exceptions raised by any of the calls inside it
@@ -135,12 +135,12 @@ int main(void)
*/
cout << endl << "Field c : " << endl;
for( i = 0; i < LENGTH; i++)
cout << s2[i].c << " ";
cout << s2[i].c << " ";
cout << endl;
cout << endl << "Field a : " << endl;
for( i = 0; i < LENGTH; i++)
cout << s2[i].a << " ";
cout << s2[i].a << " ";
cout << endl;
/*
@@ -161,7 +161,7 @@ int main(void)
*/
cout << endl << "Field b : " << endl;
for( i = 0; i < LENGTH; i++)
cout << s3[i] << " ";
cout << s3[i] << " ";
cout << endl;
/*

12
c++/examples/create.cpp
View File

@@ -25,11 +25,11 @@
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME( "SDS.h5" );
const H5std_string DATASET_NAME( "IntArray" );
const int NX = 5; // dataset dimensions
const int NY = 6;
const int RANK = 2;
const H5std_string FILE_NAME( "SDS.h5" );
const H5std_string DATASET_NAME( "IntArray" );
const int NX = 5; // dataset dimensions
const int NY = 6;
const int RANK = 2;
int main (void)
{
@@ -41,7 +41,7 @@ int main (void)
for (j = 0; j < NX; j++)
{
for (i = 0; i < NY; i++)
data[j][i] = i + j;
data[j][i] = i + j;
}
/*
* 0 1 2 3 4 5

24
c++/examples/extend_ds.cpp
View File

@@ -105,8 +105,8 @@ int main (void)
* Write the data to the hyperslab.
*/
int data1[3][3] = { {1, 1, 1}, /* data to write */
{1, 1, 1},
{1, 1, 1} };
{1, 1, 1},
{1, 1, 1} };
dataset.write( data1, PredType::NATIVE_INT, mspace1, fspace1 );
/*
@@ -179,16 +179,16 @@ int main (void)
/*
* Resulting dataset
*
* 1 1 1 3 3
* 1 1 1 3 3
* 1 1 1 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 1 1 1 3 3
* 1 1 1 3 3
* 1 1 1 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
* 2 0 0 0 0
*/
/*
* Display the result.

254
c++/examples/h5group.cpp
View File

@@ -33,7 +33,7 @@ using std::endl;
using namespace H5;
const H5std_string FILE_NAME( "Group.h5" );
const int RANK = 2;
const int RANK = 2;
// Operator function
extern "C" herr_t file_info(hid_t loc_id, const char *name, const H5L_info_t *linfo,
@@ -48,169 +48,169 @@ int main(void)
// Try block to detect exceptions raised by any of the calls inside it
try
{
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Create the named file, truncating the existing one if any,
* using default create and access property lists.
*/
H5File *file = new H5File( FILE_NAME, H5F_ACC_TRUNC );
/*
* Create the named file, truncating the existing one if any,
* using default create and access property lists.
*/
H5File *file = new H5File( FILE_NAME, H5F_ACC_TRUNC );
/*
* Create a group in the file
*/
Group* group = new Group( file->createGroup( "/Data" ));
/*
* Create a group in the file
*/
Group* group = new Group( file->createGroup( "/Data" ));
/*
* Create dataset "Compressed Data" in the group using absolute
* name. Dataset creation property list is modified to use
* GZIP compression with the compression effort set to 6.
* Note that compression can be used only when dataset is chunked.
*/
dims[0] = 1000;
dims[1] = 20;
cdims[0] = 20;
cdims[1] = 20;
DataSpace *dataspace = new DataSpace(RANK, dims); // create new dspace
DSetCreatPropList ds_creatplist; // create dataset creation prop list
ds_creatplist.setChunk( 2, cdims ); // then modify it for compression
ds_creatplist.setDeflate( 6 );
/*
* Create dataset "Compressed Data" in the group using absolute
* name. Dataset creation property list is modified to use
* GZIP compression with the compression effort set to 6.
* Note that compression can be used only when dataset is chunked.
*/
dims[0] = 1000;
dims[1] = 20;
cdims[0] = 20;
cdims[1] = 20;
DataSpace *dataspace = new DataSpace(RANK, dims); // create new dspace
DSetCreatPropList ds_creatplist; // create dataset creation prop list
ds_creatplist.setChunk( 2, cdims ); // then modify it for compression
ds_creatplist.setDeflate( 6 );
/*
* Create the first dataset.
*/
DataSet* dataset = new DataSet(file->createDataSet(
"/Data/Compressed_Data", PredType::NATIVE_INT,
*dataspace, ds_creatplist ));
/*
* Create the first dataset.
*/
DataSet* dataset = new DataSet(file->createDataSet(
"/Data/Compressed_Data", PredType::NATIVE_INT,
*dataspace, ds_creatplist ));
/*
* Close the first dataset.
*/
delete dataset;
delete dataspace;
/*
* Close the first dataset.
*/
delete dataset;
delete dataspace;
/*
* Create the second dataset.
*/
dims[0] = 500;
dims[1] = 20;
dataspace = new DataSpace(RANK, dims); // create second dspace
dataset = new DataSet(file->createDataSet("/Data/Float_Data",
PredType::NATIVE_FLOAT, *dataspace));
/*
* Create the second dataset.
*/
dims[0] = 500;
dims[1] = 20;
dataspace = new DataSpace(RANK, dims); // create second dspace
dataset = new DataSet(file->createDataSet("/Data/Float_Data",
PredType::NATIVE_FLOAT, *dataspace));
delete dataset;
delete dataspace;
delete group;
delete file;
delete dataset;
delete dataspace;
delete group;
delete file;
/*
* Now reopen the file and group in the file.
*/
file = new H5File(FILE_NAME, H5F_ACC_RDWR);
group = new Group(file->openGroup("Data"));
/*
* Now reopen the file and group in the file.
*/
file = new H5File(FILE_NAME, H5F_ACC_RDWR);
group = new Group(file->openGroup("Data"));
/*
* Access "Compressed_Data" dataset in the group.
*/
try { // to determine if the dataset exists in the group
dataset = new DataSet( group->openDataSet( "Compressed_Data" ));
}
catch( GroupIException not_found_error ) {
cout << " Dataset is not found." << endl;
}
cout << "dataset \"/Data/Compressed_Data\" is open" << endl;
/*
* Access "Compressed_Data" dataset in the group.
*/
try { // to determine if the dataset exists in the group
dataset = new DataSet( group->openDataSet( "Compressed_Data" ));
}
catch( GroupIException not_found_error ) {
cout << " Dataset is not found." << endl;
}
cout << "dataset \"/Data/Compressed_Data\" is open" << endl;
/*
* Close the dataset.
*/
delete dataset;
/*
* Close the dataset.
*/
delete dataset;
/*
* Create hard link to the Data group.
*/
file->link( H5L_TYPE_HARD, "Data", "Data_new" );
/*
* Create hard link to the Data group.
*/
file->link( H5L_TYPE_HARD, "Data", "Data_new" );
/*
* We can access "Compressed_Data" dataset using created
* hard link "Data_new".
*/
try { // to determine if the dataset exists in the file
dataset = new DataSet(file->openDataSet( "/Data_new/Compressed_Data" ));
}
catch( FileIException not_found_error )
{
cout << " Dataset is not found." << endl;
}
cout << "dataset \"/Data_new/Compressed_Data\" is open" << endl;
/*
* We can access "Compressed_Data" dataset using created
* hard link "Data_new".
*/
try { // to determine if the dataset exists in the file
dataset = new DataSet(file->openDataSet( "/Data_new/Compressed_Data" ));
}
catch( FileIException not_found_error )
{
cout << " Dataset is not found." << endl;
}
cout << "dataset \"/Data_new/Compressed_Data\" is open" << endl;
/*
* Close the dataset.
*/
delete dataset;
/*
* Close the dataset.
*/
delete dataset;
/*
* Use iterator to see the names of the objects in the file
* root directory.
*/
cout << endl << "Iterating over elements in the file" << endl;
herr_t idx = H5Literate(file->getId(), H5_INDEX_NAME, H5_ITER_INC, NULL, file_info, NULL);
cout << endl;
/*
* Use iterator to see the names of the objects in the file
* root directory.
*/
cout << endl << "Iterating over elements in the file" << endl;
herr_t idx = H5Literate(file->getId(), H5_INDEX_NAME, H5_ITER_INC, NULL, file_info, NULL);
cout << endl;
/*
* Unlink name "Data" and use iterator to see the names
* of the objects in the file root direvtory.
*/
cout << "Unlinking..." << endl;
try { // attempt to unlink the dataset
file->unlink( "Data" );
}
catch( FileIException unlink_error )
{
cout << " unlink failed." << endl;
}
cout << "\"Data\" is unlinked" << endl;
/*
* Unlink name "Data" and use iterator to see the names
* of the objects in the file root direvtory.
*/
cout << "Unlinking..." << endl;
try { // attempt to unlink the dataset
file->unlink( "Data" );
}
catch( FileIException unlink_error )
{
cout << " unlink failed." << endl;
}
cout << "\"Data\" is unlinked" << endl;
cout << endl << "Iterating over elements in the file again" << endl;
idx = H5Literate(file->getId(), H5_INDEX_NAME, H5_ITER_INC, NULL, file_info, NULL);
cout << endl;
cout << endl << "Iterating over elements in the file again" << endl;
idx = H5Literate(file->getId(), H5_INDEX_NAME, H5_ITER_INC, NULL, file_info, NULL);
cout << endl;
/*
* Close the group and file.
*/
delete group;
delete file;
/*
* Close the group and file.
*/
delete group;
delete file;
} // end of try block
// catch failure caused by the H5File operations
catch( FileIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch( DataSetIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch( DataSpaceIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the Attribute operations
catch( AttributeIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;
}

170
c++/examples/h5tutr_cmprss.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -24,130 +24,130 @@ using std::endl;
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME("h5tutr_cmprss.h5");
const H5std_string DATASET_NAME("Compressed_Data");
const int DIM0 = 100;
const int DIM1 = 20;
const H5std_string FILE_NAME("h5tutr_cmprss.h5");
const H5std_string DATASET_NAME("Compressed_Data");
const int DIM0 = 100;
const int DIM1 = 20;
int main (void)
{
hsize_t dims[2] = { DIM0, DIM1 }; // dataset dimensions
hsize_t chunk_dims[2] = { 20, 20 }; // chunk dimensions
hsize_t dims[2] = { DIM0, DIM1 }; // dataset dimensions
hsize_t chunk_dims[2] = { 20, 20 }; // chunk dimensions
int i,j, buf[DIM0][DIM1];
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create the data space for the dataset.
DataSpace *dataspace = new DataSpace(2, dims);
// Create the data space for the dataset.
DataSpace *dataspace = new DataSpace(2, dims);
// Modify dataset creation property to enable chunking
DSetCreatPropList *plist = new DSetCreatPropList;
plist->setChunk(2, chunk_dims);
// Modify dataset creation property to enable chunking
DSetCreatPropList *plist = new DSetCreatPropList;
plist->setChunk(2, chunk_dims);
// Set ZLIB (DEFLATE) Compression using level 6.
// To use SZIP compression comment out this line.
plist->setDeflate(6);
// Set ZLIB (DEFLATE) Compression using level 6.
// To use SZIP compression comment out this line.
plist->setDeflate(6);
// Uncomment these lines to set SZIP Compression
// unsigned szip_options_mask = H5_SZIP_NN_OPTION_MASK;
// unsigned szip_pixels_per_block = 16;
// plist->setSzip(szip_options_mask, szip_pixels_per_block);
// Uncomment these lines to set SZIP Compression
// unsigned szip_options_mask = H5_SZIP_NN_OPTION_MASK;
// unsigned szip_pixels_per_block = 16;
// plist->setSzip(szip_options_mask, szip_pixels_per_block);
// Create the dataset.
DataSet *dataset = new DataSet(file.createDataSet( DATASET_NAME,
PredType::STD_I32BE, *dataspace, *plist) );
// Create the dataset.
DataSet *dataset = new DataSet(file.createDataSet( DATASET_NAME,
PredType::STD_I32BE, *dataspace, *plist) );
for (i = 0; i< DIM0; i++)
for (j=0; j<DIM1; j++)
buf[i][j] = i+j;
for (i = 0; i< DIM0; i++)
for (j=0; j<DIM1; j++)
buf[i][j] = i+j;
// Write data to dataset.
dataset->write(buf, PredType::NATIVE_INT);
// Write data to dataset.
dataset->write(buf, PredType::NATIVE_INT);
// Close objects and file. Either approach will close the HDF5 item.
delete dataspace;
delete dataset;
delete plist;
file.close();
// Close objects and file. Either approach will close the HDF5 item.
delete dataspace;
delete dataset;
delete plist;
file.close();
// -----------------------------------------------
// Re-open the file and dataset, retrieve filter
// information for dataset and read the data back.
// -----------------------------------------------
int rbuf[DIM0][DIM1];
int numfilt;
size_t nelmts={1}, namelen={1};
unsigned flags, filter_info, cd_values[1], idx;
char name[1];
H5Z_filter_t filter_type;
// -----------------------------------------------
// Re-open the file and dataset, retrieve filter
// information for dataset and read the data back.
// -----------------------------------------------
int rbuf[DIM0][DIM1];
int numfilt;
size_t nelmts={1}, namelen={1};
unsigned flags, filter_info, cd_values[1], idx;
char name[1];
H5Z_filter_t filter_type;
// Open the file and the dataset in the file.
file.openFile(FILE_NAME, H5F_ACC_RDONLY);
dataset = new DataSet(file.openDataSet( DATASET_NAME));
// Open the file and the dataset in the file.
file.openFile(FILE_NAME, H5F_ACC_RDONLY);
dataset = new DataSet(file.openDataSet( DATASET_NAME));
// Get the create property list of the dataset.
plist = new DSetCreatPropList(dataset->getCreatePlist ());
// Get the create property list of the dataset.
plist = new DSetCreatPropList(dataset->getCreatePlist ());
// Get the number of filters associated with the dataset.
numfilt = plist->getNfilters();
cout << "Number of filters associated with dataset: " << numfilt << endl;
// Get the number of filters associated with the dataset.
numfilt = plist->getNfilters();
cout << "Number of filters associated with dataset: " << numfilt << endl;
for (idx=0; idx < numfilt; idx++) {
nelmts = 0;
for (idx=0; idx < numfilt; idx++) {
nelmts = 0;
filter_type = plist->getFilter(idx, flags, nelmts, cd_values, namelen, name , filter_info);
filter_type = plist->getFilter(idx, flags, nelmts, cd_values, namelen, name , filter_info);
cout << "Filter Type: ";
cout << "Filter Type: ";
switch (filter_type) {
case H5Z_FILTER_DEFLATE:
cout << "H5Z_FILTER_DEFLATE" << endl;
break;
case H5Z_FILTER_SZIP:
cout << "H5Z_FILTER_SZIP" << endl;
break;
default:
cout << "Other filter type included." << endl;
}
}
switch (filter_type) {
case H5Z_FILTER_DEFLATE:
cout << "H5Z_FILTER_DEFLATE" << endl;
break;
case H5Z_FILTER_SZIP:
cout << "H5Z_FILTER_SZIP" << endl;
break;
default:
cout << "Other filter type included." << endl;
}
}
// Read data.
dataset->read(rbuf, PredType::NATIVE_INT);
// Read data.
dataset->read(rbuf, PredType::NATIVE_INT);
delete plist;
delete dataset;
file.close(); // can be skipped
delete plist;
delete dataset;
file.close(); // can be skipped
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch(DataSpaceIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

58
c++/examples/h5tutr_crtatt.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -21,11 +21,11 @@
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME( "h5tutr_dset.h5" );
const H5std_string DATASET_NAME( "dset" );
const H5std_string ATTR_NAME( "Units" );
const H5std_string FILE_NAME( "h5tutr_dset.h5" );
const H5std_string DATASET_NAME( "dset" );
const H5std_string ATTR_NAME( "Units" );
const int DIM1 = 2;
const int DIM1 = 2;
int main (void)
{
@@ -36,52 +36,52 @@ int main (void)
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Open an existing file and dataset.
H5File file( FILE_NAME, H5F_ACC_RDWR );
DataSet dataset = file.openDataSet( DATASET_NAME );
// Open an existing file and dataset.
H5File file( FILE_NAME, H5F_ACC_RDWR );
DataSet dataset = file.openDataSet( DATASET_NAME );
// Create the data space for the attribute.
DataSpace attr_dataspace = DataSpace (1, dims );
// Create the data space for the attribute.
DataSpace attr_dataspace = DataSpace (1, dims );
// Create a dataset attribute.
Attribute attribute = dataset.createAttribute( ATTR_NAME, PredType::STD_I32BE,
attr_dataspace);
// Create a dataset attribute.
Attribute attribute = dataset.createAttribute( ATTR_NAME, PredType::STD_I32BE,
attr_dataspace);
// Write the attribute data.
attribute.write( PredType::NATIVE_INT, attr_data);
// Write the attribute data.
attribute.write( PredType::NATIVE_INT, attr_data);
} // end of try block
// catch failure caused by the H5File operations
catch( DataSpaceIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the H5File operations
catch( AttributeIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the H5File operations
catch( FileIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch( DataSetIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

55
c++/examples/h5tutr_crtdat.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -18,57 +18,58 @@
#include <iostream>
#include <string>
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME("h5tutr_dset.h5");
const H5std_string DATASET_NAME("dset");
const int NX = 4; // dataset dimensions
const int NY = 6;
const int RANK = 2;
const H5std_string FILE_NAME("h5tutr_dset.h5");
const H5std_string DATASET_NAME("dset");
const int NX = 4; // dataset dimensions
const int NY = 6;
const int RANK = 2;
int main (void)
{
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create the data space for the dataset.
hsize_t dims[2]; // dataset dimensions
dims[0] = NX;
dims[1] = NY;
DataSpace dataspace(RANK, dims);
// Create the data space for the dataset.
hsize_t dims[2]; // dataset dimensions
dims[0] = NX;
dims[1] = NY;
DataSpace dataspace(RANK, dims);
// Create the dataset.
DataSet dataset = file.createDataSet(DATASET_NAME, PredType::STD_I32BE, dataspace);
// Create the dataset.
DataSet dataset = file.createDataSet(DATASET_NAME, PredType::STD_I32BE, dataspace);
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch(DataSpaceIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

34
c++/examples/h5tutr_crtgrp.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -31,31 +31,31 @@ int main(void)
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Create a new file using default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create a group named "/MygGroup" in the file
Group group(file.createGroup("/MyGroup"));
// Create a new file using default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create a group named "/MygGroup" in the file
Group group(file.createGroup("/MyGroup"));
// File and group will be closed as their instances go out of scope.
// File and group will be closed as their instances go out of scope.
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the Group operations
catch(GroupIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;

54
c++/examples/h5tutr_crtgrpar.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -33,50 +33,50 @@ int main(void)
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately.
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately.
Exception::dontPrint();
Exception::dontPrint();
// Create a new file using default properties.
// Create a new file using default properties.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create group "MyGroup" in the root group using an absolute name.
Group group1(file.createGroup( "/MyGroup"));
// Create group "MyGroup" in the root group using an absolute name.
Group group1(file.createGroup( "/MyGroup"));
// Create group "Group_A" in group "MyGroup" using an
// absolute name.
// Create group "Group_A" in group "MyGroup" using an
// absolute name.
Group group2(file.createGroup("/MyGroup/Group_A"));
Group group2(file.createGroup("/MyGroup/Group_A"));
// Create group "Group_B" in group "MyGroup" using a
// relative name.
// Create group "Group_B" in group "MyGroup" using a
// relative name.
Group group3(group1.createGroup ("Group_B"));
Group group3(group1.createGroup ("Group_B"));
// Close the groups and file.
// Close the groups and file.
group1.close();
group2.close();
group3.close();
file.close();
group1.close();
group2.close();
group3.close();
file.close();
} // end of try block
// catch failure caused by the File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the Group operations
catch(GroupIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;

120
c++/examples/h5tutr_crtgrpd.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -27,11 +27,11 @@ using namespace H5;
const H5std_string FILE_NAME("h5tutr_groups.h5");
const H5std_string DATASET_NAME1("/MyGroup/dset1");
const H5std_string DATASET_NAME2("dset2");
const int RANK = 2;
const int D1DIM1 = 3;
const int D1DIM2 = 3;
const int D2DIM1 = 2;
const int D2DIM2 = 10;
const int RANK = 2;
const int D1DIM1 = 3;
const int D1DIM2 = 3;
const int D2DIM1 = 2;
const int D2DIM2 = 10;
int main(void)
{
@@ -41,93 +41,93 @@ int main(void)
// Try block to catch exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Initialize the first dataset.
for (i = 0; i < D1DIM1; i++)
for (j = 0; j < D1DIM2; j++)
dset1_data[i][j] = j + 1;
// Initialize the first dataset.
for (i = 0; i < D1DIM1; i++)
for (j = 0; j < D1DIM2; j++)
dset1_data[i][j] = j + 1;
// Initialize the second dataset.
for (i = 0; i < D2DIM1; i++)
for (j = 0; j < D2DIM2; j++)
dset2_data[i][j] = j + 1;
// Initialize the second dataset.
for (i = 0; i < D2DIM1; i++)
for (j = 0; j < D2DIM2; j++)
dset2_data[i][j] = j + 1;
// Open an existing file and dataset.
H5File file(FILE_NAME, H5F_ACC_RDWR);
// Open an existing file and dataset.
H5File file(FILE_NAME, H5F_ACC_RDWR);
// Create the data space for the first dataset. Note the use of
// pointer for the instance 'dataspace'. It can be deleted and
// used again later for another data space. An HDF5 identifier is
// closed by the destructor or the method 'close()'.
hsize_t dims[RANK]; // dataset dimensions
dims[0] = D1DIM1;
dims[1] = D1DIM2;
DataSpace *dataspace = new DataSpace (RANK, dims);
hsize_t dims[RANK]; // dataset dimensions
dims[0] = D1DIM1;
dims[1] = D1DIM2;
DataSpace *dataspace = new DataSpace (RANK, dims);
// Create the dataset in group "MyGroup". Same note as for the
// dataspace above.
DataSet *dataset = new DataSet (file.createDataSet(DATASET_NAME1,
PredType::STD_I32BE, *dataspace));
// Create the dataset in group "MyGroup". Same note as for the
// dataspace above.
DataSet *dataset = new DataSet (file.createDataSet(DATASET_NAME1,
PredType::STD_I32BE, *dataspace));
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset->write(dset1_data, PredType::NATIVE_INT);
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset->write(dset1_data, PredType::NATIVE_INT);
// Close the current dataset and data space.
delete dataset;
delete dataspace;
// Close the current dataset and data space.
delete dataset;
delete dataspace;
// Create the data space for the second dataset.
dims[0] = D2DIM1;
dims[1] = D2DIM2;
dataspace = new DataSpace (RANK, dims);
// Create the data space for the second dataset.
dims[0] = D2DIM1;
dims[1] = D2DIM2;
dataspace = new DataSpace (RANK, dims);
// Create group "Group_A" in group "MyGroup".
Group group(file.openGroup("/MyGroup/Group_A"));
// Create group "Group_A" in group "MyGroup".
Group group(file.openGroup("/MyGroup/Group_A"));
// Create the second dataset in group "Group_A".
dataset = new DataSet (group.createDataSet(DATASET_NAME2,
PredType::STD_I32BE, *dataspace));
// Create the second dataset in group "Group_A".
dataset = new DataSet (group.createDataSet(DATASET_NAME2,
PredType::STD_I32BE, *dataspace));
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset->write(dset2_data, PredType::NATIVE_INT);
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset->write(dset2_data, PredType::NATIVE_INT);
// Close all objects.
delete dataspace;
delete dataset;
group.close();
// Close all objects.
delete dataspace;
delete dataset;
group.close();
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch(DataSpaceIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the Group operations
catch(GroupIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;

186
c++/examples/h5tutr_extend.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -24,17 +24,17 @@ 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)
{
hsize_t dims[2] = {3,3}; // dataset dimensions at creation
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} };
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
@@ -42,127 +42,127 @@ int main (void)
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} };
{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
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create a new file using the default property lists.
H5File file(FILE_NAME, H5F_ACC_TRUNC);
// Create the data space for the dataset. Note the use of pointer
// 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);
// Create the data space for the dataset. Note the use of pointer
// 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);
// Modify dataset creation property to enable chunking
DSetCreatPropList prop;
prop.setChunk(2, chunk_dims);
// 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) );
// Create the chunked dataset. Note the use of pointer.
DataSet *dataset = new DataSet(file.createDataSet( DATASETNAME,
PredType::STD_I32BE, *dataspace, prop) );
// Write data to dataset.
dataset->write(data, PredType::NATIVE_INT);
// Write data to dataset.
dataset->write(data, PredType::NATIVE_INT);
// Extend the dataset. Dataset becomes 10 x 3.
size[0] = dims[0] + dimsext[0];
size[1] = dims[1];
dataset->extend(size);
// Extend the dataset. Dataset becomes 10 x 3.
size[0] = dims[0] + dimsext[0];
size[1] = dims[1];
dataset->extend(size);
// Select a hyperslab in extended portion of the dataset.
DataSpace *filespace = new DataSpace(dataset->getSpace ());
offset[0] = 3;
offset[1] = 0;
filespace->selectHyperslab(H5S_SELECT_SET, dimsext, offset);
// Define memory space.
DataSpace *memspace = new DataSpace(2, dimsext, NULL);
// Select a hyperslab in extended portion of the dataset.
DataSpace *filespace = new DataSpace(dataset->getSpace ());
offset[0] = 3;
offset[1] = 0;
filespace->selectHyperslab(H5S_SELECT_SET, dimsext, offset);
// Define memory space.
DataSpace *memspace = new DataSpace(2, dimsext, NULL);
// Write data to the extended portion of the dataset.
dataset->write(dataext, PredType::NATIVE_INT, *memspace, *filespace);
// Write data to the extended portion of the dataset.
dataset->write(dataext, PredType::NATIVE_INT, *memspace, *filespace);
// Close all objects and file.
prop.close();
delete filespace;
delete memspace;
delete dataspace;
delete dataset;
file.close();
// Close all objects and file.
prop.close();
delete filespace;
delete memspace;
delete dataspace;
delete dataset;
file.close();
// ---------------------------------------
// Re-open the file and read the data back
// ---------------------------------------
// ---------------------------------------
// 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));
// Open the file and dataset.
file.openFile(FILE_NAME, H5F_ACC_RDONLY);
dataset = new DataSet(file.openDataSet( DATASETNAME));
// Get the dataset's dataspace and creation property list.
filespace = new DataSpace(dataset->getSpace());
prop = dataset->getCreatePlist();
// Get the dataset's dataspace and creation property list.
filespace = new DataSpace(dataset->getSpace());
prop = dataset->getCreatePlist();
// Get information to obtain memory dataspace.
rank = filespace->getSimpleExtentNdims();
herr_t status_n = filespace->getSimpleExtentDims(dimsr);
// Get information to obtain memory dataspace.
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;;
if (H5D_CHUNKED == prop.getLayout())
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);
memspace = new DataSpace(rank, dimsr, NULL);
dataset->read(rdata, PredType::NATIVE_INT, *memspace, *filespace);
cout << endl;
for (j = 0; j < dimsr[0]; j++) {
for (i = 0; i < dimsr[1]; i++)
cout << " " << rdata[j][i];
cout << endl;
}
cout << endl;
for (j = 0; j < dimsr[0]; j++) {
for (i = 0; i < dimsr[1]; i++)
cout << " " << rdata[j][i];
cout << endl;
}
// Close all objects and file.
prop.close();
delete filespace;
delete memspace;
delete dataset;
file.close();
// Close all objects and file.
prop.close();
delete filespace;
delete memspace;
delete dataset;
file.close();
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch(DataSpaceIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

48
c++/examples/h5tutr_rdwt.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -21,10 +21,10 @@
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME("h5tutr_dset.h5");
const H5std_string DATASET_NAME("dset");
const int DIM0 = 4; // dataset dimensions
const int DIM1 = 6;
const H5std_string FILE_NAME("h5tutr_dset.h5");
const H5std_string DATASET_NAME("dset");
const int DIM0 = 4; // dataset dimensions
const int DIM1 = 6;
int main (void)
{
@@ -32,41 +32,41 @@ int main (void)
// Data initialization.
int i, j;
int data[DIM0][DIM1]; // buffer for data to write
int data[DIM0][DIM1]; // buffer for data to write
for (j = 0; j < DIM0; j++)
for (i = 0; i < DIM1; i++)
data[j][i] = i * 6 + j + 1;
for (i = 0; i < DIM1; i++)
data[j][i] = i * 6 + j + 1;
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Open an existing file and dataset.
H5File file(FILE_NAME, H5F_ACC_RDWR);
DataSet dataset = file.openDataSet(DATASET_NAME);
// Open an existing file and dataset.
H5File file(FILE_NAME, H5F_ACC_RDWR);
DataSet dataset = file.openDataSet(DATASET_NAME);
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset.write(data, PredType::NATIVE_INT);
// Write the data to the dataset using default memory space, file
// space, and transfer properties.
dataset.write(data, PredType::NATIVE_INT);
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

188
c++/examples/h5tutr_subset.cpp
View File

@@ -1,8 +1,8 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* 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 *
@@ -24,13 +24,13 @@ using std::endl;
#include "H5Cpp.h"
using namespace H5;
const H5std_string FILE_NAME("h5tutr_subset.h5");
const H5std_string DATASET_NAME("IntArray");
const H5std_string FILE_NAME("h5tutr_subset.h5");
const H5std_string DATASET_NAME("IntArray");
const int RANK = 2;
const int DIM0_SUB = 3; // subset dimensions
const int DIM0_SUB = 3; // subset dimensions
const int DIM1_SUB = 4;
const int DIM0 = 8; // size of dataset
const int DIM0 = 8; // size of dataset
const int DIM1 = 10;
int main (void)
@@ -41,134 +41,134 @@ int main (void)
// Try block to detect exceptions raised by any of the calls inside it
try
{
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// Turn off the auto-printing when failure occurs so that we can
// handle the errors appropriately
Exception::dontPrint();
// ---------------------------------------------------
// Create a new file using the default property lists.
// Then create a dataset and write data to it.
// Close the file and dataset.
// ---------------------------------------------------
// ---------------------------------------------------
// Create a new file using the default property lists.
// Then create a dataset and write data to it.
// Close the file and dataset.
// ---------------------------------------------------
H5File file(FILE_NAME, H5F_ACC_TRUNC);
H5File file(FILE_NAME, H5F_ACC_TRUNC);
hsize_t dims[2];
dims[0] = DIM0;
dims[1] = DIM1;
DataSpace dataspace = DataSpace (RANK, dims);
hsize_t dims[2];
dims[0] = DIM0;
dims[1] = DIM1;
DataSpace dataspace = DataSpace (RANK, dims);
DataSet dataset(file.createDataSet( DATASET_NAME,
PredType::STD_I32BE, dataspace) );
DataSet dataset(file.createDataSet( DATASET_NAME,
PredType::STD_I32BE, dataspace) );
for (j = 0; j < DIM0; j++) {
for (i = 0; i < DIM1; i++)
if (i< (DIM1/2))
data[j][i] = 1;
else
data[j][i] = 2;
}
for (j = 0; j < DIM0; j++) {
for (i = 0; i < DIM1; i++)
if (i< (DIM1/2))
data[j][i] = 1;
else
data[j][i] = 2;
}
dataset.write(data, PredType::NATIVE_INT);
dataset.write(data, PredType::NATIVE_INT);
cout << endl << "Data Written to File:" << endl;
for (j = 0; j < DIM0; j++) {
for (i = 0; i < DIM1; i++)
cout << " " << data[j][i];
cout << endl;
}
cout << endl << "Data Written to File:" << endl;
for (j = 0; j < DIM0; j++) {
for (i = 0; i < DIM1; i++)
cout << " " << data[j][i];
cout << endl;
}
dataspace.close();
dataset.close();
file.close();
dataspace.close();
dataset.close();
file.close();
// ---------------------------------------------------
// Reopen the file and dataset and write a subset of
// values to the dataset.
// ---------------------------------------------------
// ---------------------------------------------------
// Reopen the file and dataset and write a subset of
// values to the dataset.
// ---------------------------------------------------
hsize_t offset[2], count[2], stride[2], block[2];
hsize_t dimsm[2];
hsize_t offset[2], count[2], stride[2], block[2];
hsize_t dimsm[2];
file.openFile(FILE_NAME, H5F_ACC_RDWR);
dataset = file.openDataSet(DATASET_NAME);
file.openFile(FILE_NAME, H5F_ACC_RDWR);
dataset = file.openDataSet(DATASET_NAME);
// Specify size and shape of subset to write.
// Specify size and shape of subset to write.
offset[0] = 1;
offset[1] = 2;
offset[0] = 1;
offset[1] = 2;
count[0] = DIM0_SUB;
count[1] = DIM1_SUB;
count[0] = DIM0_SUB;
count[1] = DIM1_SUB;
stride[0] = 1;
stride[1] = 1;
stride[0] = 1;
stride[1] = 1;
block[0] = 1;
block[1] = 1;
block[0] = 1;
block[1] = 1;
// Define Memory Dataspace. Get file dataspace and select
// a subset from the file dataspace.
// Define Memory Dataspace. Get file dataspace and select
// a subset from the file dataspace.
dimsm[0] = DIM0_SUB;
dimsm[1] = DIM1_SUB;
dimsm[0] = DIM0_SUB;
dimsm[1] = DIM1_SUB;
DataSpace memspace(RANK, dimsm, NULL);
DataSpace memspace(RANK, dimsm, NULL);
dataspace = dataset.getSpace();
dataspace.selectHyperslab(H5S_SELECT_SET, count, offset, stride, block);
dataspace = dataset.getSpace();
dataspace.selectHyperslab(H5S_SELECT_SET, count, offset, stride, block);
// Write a subset of data to the dataset, then read the
// entire dataset back from the file.
// Write a subset of data to the dataset, then read the
// entire dataset back from the file.
cout << endl << "Write subset to file specifying: " << endl;
cout << " offset=1x2 stride=1x1 count=3x4 block=1x1" << endl;
for (j = 0; j < DIM0_SUB; j++) {
for (i = 0; i < DIM1_SUB; i++)
sdata[j][i] = 5;
}
dataset.write(sdata, PredType::NATIVE_INT, memspace, dataspace);
dataset.read(rdata, PredType::NATIVE_INT);
cout << endl << "Write subset to file specifying: " << endl;
cout << " offset=1x2 stride=1x1 count=3x4 block=1x1" << endl;
for (j = 0; j < DIM0_SUB; j++) {
for (i = 0; i < DIM1_SUB; i++)
sdata[j][i] = 5;
}
dataset.write(sdata, PredType::NATIVE_INT, memspace, dataspace);
dataset.read(rdata, PredType::NATIVE_INT);
cout << endl << "Data in File after Subset is Written:" << endl;
for (i = 0; i < DIM0; i++) {
for (j = 0; j < DIM1; j++)
cout << " " << rdata[i][j];
cout << endl;
}
cout << endl;
cout << endl << "Data in File after Subset is Written:" << endl;
for (i = 0; i < DIM0; i++) {
for (j = 0; j < DIM1; j++)
cout << " " << rdata[i][j];
cout << endl;
}
cout << endl;
// It is not necessary to close these objects because close() will
// be called when the object instances are going out of scope.
dataspace.close();
memspace.close();
dataset.close();
file.close();
// It is not necessary to close these objects because close() will
// be called when the object instances are going out of scope.
dataspace.close();
memspace.close();
dataset.close();
file.close();
} // end of try block
// catch failure caused by the H5File operations
catch(FileIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch(DataSetIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch(DataSpaceIException error)
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0; // successfully terminated

36
c++/examples/readdata.cpp
View File

@@ -31,9 +31,9 @@ using namespace H5;
const H5std_string FILE_NAME( "SDS.h5" );
const H5std_string DATASET_NAME( "IntArray" );
const int NX_SUB = 3; // hyperslab dimensions
const int NX_SUB = 3; // hyperslab dimensions
const int NY_SUB = 4;
const int NX = 7; // output buffer dimensions
const int NX = 7; // output buffer dimensions
const int NY = 7;
const int NZ = 3;
const int RANK_OUT = 3;
@@ -49,8 +49,8 @@ int main (void)
{
for (i = 0; i < NY; i++)
{
for (k = 0; k < NZ ; k++)
data_out[j][i][k] = 0;
for (k = 0; k < NZ ; k++)
data_out[j][i][k] = 0;
}
}
@@ -81,19 +81,19 @@ int main (void)
*/
if( type_class == H5T_INTEGER )
{
cout << "Data set has INTEGER type" << endl;
cout << "Data set has INTEGER type" << endl;
/*
* Get the integer datatype
* Get the integer datatype
*/
IntType intype = dataset.getIntType();
IntType intype = dataset.getIntType();
/*
* Get order of datatype and print message if it's a little endian.
*/
H5std_string order_string;
H5std_string order_string;
H5T_order_t order = intype.getOrder( order_string );
cout << order_string << endl;
cout << order_string << endl;
/*
* Get size of the data element stored in file and print it.
@@ -119,15 +119,15 @@ int main (void)
hsize_t dims_out[2];
int ndims = dataspace.getSimpleExtentDims( dims_out, NULL);
cout << "rank " << rank << ", dimensions " <<
(unsigned long)(dims_out[0]) << " x " <<
(unsigned long)(dims_out[1]) << endl;
(unsigned long)(dims_out[0]) << " x " <<
(unsigned long)(dims_out[1]) << endl;
/*
* Define hyperslab in the dataset; implicitly giving strike and
* block NULL.
*/
hsize_t offset[2]; // hyperslab offset in the file
hsize_t count[2]; // size of the hyperslab in the file
hsize_t offset[2]; // hyperslab offset in the file
hsize_t count[2]; // size of the hyperslab in the file
offset[0] = 1;
offset[1] = 2;
count[0] = NX_SUB;
@@ -146,8 +146,8 @@ int main (void)
/*
* Define memory hyperslab.
*/
hsize_t offset_out[3]; // hyperslab offset in memory
hsize_t count_out[3]; // size of the hyperslab in memory
hsize_t offset_out[3]; // hyperslab offset in memory
hsize_t count_out[3]; // size of the hyperslab in memory
offset_out[0] = 3;
offset_out[1] = 0;
offset_out[2] = 0;
@@ -164,9 +164,9 @@ int main (void)
for (j = 0; j < NX; j++)
{
for (i = 0; i < NY; i++)
cout << data_out[j][i][0] << " ";
cout << endl;
for (i = 0; i < NY; i++)
cout << data_out[j][i][0] << " ";
cout << endl;
}
/*
* 0 0 0 0 0 0 0

462
c++/examples/writedata.cpp
View File

@@ -34,19 +34,19 @@ using namespace H5;
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_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
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)
{
@@ -57,271 +57,271 @@ int main (void)
*/
try
{
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Turn off the auto-printing when failure occurs so that we can
* handle the errors appropriately
*/
Exception::dontPrint();
/*
* Create a file.
*/
H5File* file = new H5File( FILE_NAME, H5F_ACC_TRUNC );
/*
* Create a file.
*/
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 */
DSetCreatPropList plist;
plist.setFillValue(PredType::NATIVE_INT, &fillvalue);
/*
* 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 );
/*
* 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 );
/*
* Create dataset and write it into the file.
*/
DataSet* dataset = new DataSet(file->createDataSet(
DATASET_NAME, PredType::NATIVE_INT, fspace, plist));
/*
* Create dataset and write it into the file.
*/
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 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);
/*
* 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 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);
/*
* Create dataspace for the first dataset.
*/
hsize_t dim1[] = {MSPACE1_DIM}; /* Dimension size of the first dataset
(in memory) */
DataSpace mspace1( MSPACE1_RANK, dim1 );
/*
* Create dataspace for the first dataset.
*/
hsize_t dim1[] = {MSPACE1_DIM}; /* Dimension size of the first dataset
(in memory) */
DataSpace mspace1( MSPACE1_RANK, dim1 );
/*
* Select hyperslab.
* We will use 48 elements of the vector buffer starting at the
* second element. Selected elements are 1 2 3 . . . 48
*/
start[0] = 1;
stride[0] = 1;
count[0] = 48;
block[0] = 1;
mspace1.selectHyperslab( H5S_SELECT_SET, count, start, stride, block);
/*
* Select hyperslab.
* We will use 48 elements of the vector buffer starting at the
* second element. Selected elements are 1 2 3 . . . 48
*/
start[0] = 1;
stride[0] = 1;
count[0] = 48;
block[0] = 1;
mspace1.selectHyperslab( H5S_SELECT_SET, count, start, stride, block);
/*
* Write selection from the vector buffer to the dataset in the file.
*
* File dataset should look like this:
* 0 1 2 0 3 4 0 5 6 0 7 8
* 0 9 10 0 11 12 0 13 14 0 15 16
* 0 17 18 0 19 20 0 21 22 0 23 24
* 0 0 0 0 0 0 0 0 0 0 0 0
* 0 25 26 0 27 28 0 29 30 0 31 32
* 0 33 34 0 35 36 0 37 38 0 39 40
* 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
/*
* Write selection from the vector buffer to the dataset in the file.
*
* File dataset should look like this:
* 0 1 2 0 3 4 0 5 6 0 7 8
* 0 9 10 0 11 12 0 13 14 0 15 16
* 0 17 18 0 19 20 0 21 22 0 23 24
* 0 0 0 0 0 0 0 0 0 0 0 0
* 0 25 26 0 27 28 0 29 30 0 31 32
* 0 33 34 0 35 36 0 37 38 0 39 40
* 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
/*
* Buffer initialization.
*/
vector[0] = vector[MSPACE1_DIM - 1] = -1;
for (i = 1; i < MSPACE1_DIM - 1; i++)
vector[i] = i;
/*
* Buffer initialization.
*/
vector[0] = vector[MSPACE1_DIM - 1] = -1;
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.
*/
fspace.selectNone();
/*
* Reset the selection for the file dataspace fid.
*/
fspace.selectNone();
/*
* Create dataspace for the second dataset.
*/
hsize_t dim2[] = {MSPACE2_DIM}; /* Dimension size of the second dataset
(in memory */
DataSpace mspace2( MSPACE2_RANK, dim2 );
/*
* Create dataspace for the second dataset.
*/
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;
/*
* 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;
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 );
/*
* 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 );
/*
* File dataset should look like this:
* 53 1 2 0 3 4 0 5 6 0 7 8
* 0 9 10 0 11 12 0 13 14 0 15 16
* 0 17 18 0 19 20 0 21 22 0 23 24
* 0 0 0 59 0 61 0 0 0 0 0 0
* 0 25 26 0 27 28 0 29 30 0 31 32
* 0 33 34 0 35 36 67 37 38 0 39 40
* 0 41 42 0 43 44 0 45 46 0 47 48
* 0 0 0 0 0 0 0 0 0 0 0 0
*
*/
/*
* File dataset should look like this:
* 53 1 2 0 3 4 0 5 6 0 7 8
* 0 9 10 0 11 12 0 13 14 0 15 16
* 0 17 18 0 19 20 0 21 22 0 23 24
* 0 0 0 59 0 61 0 0 0 0 0 0
* 0 25 26 0 27 28 0 29 30 0 31 32
* 0 33 34 0 35 36 67 37 38 0 39 40
* 0 41 42 0 43 44 0 45 46 0 47 48
* 0 0 0 0 0 0 0 0 0 0 0 0
*
*/
/*
* Close the dataset and the file.
*/
delete dataset;
delete file;
/*
* Close the dataset and the file.
*/
delete dataset;
delete file;
/*
* Open the file.
*/
file = new H5File( FILE_NAME, H5F_ACC_RDONLY );
/*
* Open the file.
*/
file = new H5File( FILE_NAME, H5F_ACC_RDONLY );
/*
* Open the dataset.
*/
dataset = new DataSet( file->openDataSet( DATASET_NAME ));
/*
* Open the dataset.
*/
dataset = new DataSet( file->openDataSet( DATASET_NAME ));
/*
* Get dataspace of the dataset.
*/
fspace = dataset->getSpace();
/*
* Get dataspace of the dataset.
*/
fspace = dataset->getSpace();
/*
* Select first hyperslab for the dataset in the file. The following
* elements are selected:
* 10 0 11 12
* 18 0 19 20
* 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;
fspace.selectHyperslab(H5S_SELECT_SET, count, start, stride, block);
/*
* Select first hyperslab for the dataset in the file. The following
* elements are selected:
* 10 0 11 12
* 18 0 19 20
* 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;
fspace.selectHyperslab(H5S_SELECT_SET, count, start, stride, block);
/*
* Add second selected hyperslab to the selection.
* The following elements are selected:
* 19 20 0 21 22
* 0 61 0 0 0
* 27 28 0 29 30
* 35 36 67 37 38
* 43 44 0 45 46
* 0 0 0 0 0
* Note that two hyperslabs overlap. Common elements are:
* 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;
fspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block);
/*
* Add second selected hyperslab to the selection.
* The following elements are selected:
* 19 20 0 21 22
* 0 61 0 0 0
* 27 28 0 29 30
* 35 36 67 37 38
* 43 44 0 45 46
* 0 0 0 0 0
* Note that two hyperslabs overlap. Common elements are:
* 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;
fspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block);
/*
* Create memory dataspace.
*/
hsize_t mdim[] = {MSPACE_DIM1, MSPACE_DIM2}; /* Dimension sizes of the
/*
* Create memory dataspace.
*/
hsize_t mdim[] = {MSPACE_DIM1, MSPACE_DIM2}; /* Dimension sizes of the
dataset in memory when we
read selection from the
dataset on the disk */
DataSpace mspace(MSPACE_RANK, mdim);
DataSpace mspace(MSPACE_RANK, mdim);
/*
* 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;
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;
mspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block);
/*
* 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;
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;
mspace.selectHyperslab(H5S_SELECT_OR, count, start, stride, block);
/*
* Initialize data buffer.
*/
int matrix_out[MSPACE_DIM1][MSPACE_DIM2];
for (i = 0; i < MSPACE_DIM1; i++)
for (j = 0; j < MSPACE_DIM2; j++)
matrix_out[i][j] = 0;
/*
* Initialize data buffer.
*/
int matrix_out[MSPACE_DIM1][MSPACE_DIM2];
for (i = 0; i < MSPACE_DIM1; i++)
for (j = 0; j < MSPACE_DIM2; j++)
matrix_out[i][j] = 0;
/*
* Read data back to the buffer matrix.
*/
dataset->read(matrix_out, PredType::NATIVE_INT, mspace, fspace);
/*
* Read data back to the buffer matrix.
*/
dataset->read(matrix_out, PredType::NATIVE_INT, mspace, fspace);
/*
* Display the result. Memory dataset is:
*
* 10 0 11 12 0 0 0 0 0
* 18 0 19 20 0 21 22 0 0
* 0 59 0 61 0 0 0 0 0
* 0 0 27 28 0 29 30 0 0
* 0 0 35 36 67 37 38 0 0
* 0 0 43 44 0 45 46 0 0
* 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++)
cout << matrix_out[i][j] << " ";
cout << endl;
}
/*
* Display the result. Memory dataset is:
*
* 10 0 11 12 0 0 0 0 0
* 18 0 19 20 0 21 22 0 0
* 0 59 0 61 0 0 0 0 0
* 0 0 27 28 0 29 30 0 0
* 0 0 35 36 67 37 38 0 0
* 0 0 43 44 0 45 46 0 0
* 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++)
cout << matrix_out[i][j] << " ";
cout << endl;
}
/*
* Close the dataset and the file.
*/
delete dataset;
delete file;
/*
* Close the dataset and the file.
*/
delete dataset;
delete file;
} // end of try block
// catch failure caused by the H5File operations
catch( FileIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSet operations
catch( DataSetIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
// catch failure caused by the DataSpace operations
catch( DataSpaceIException error )
{
error.printErrorStack();
return -1;
error.printErrorStack();
return -1;
}
return 0;