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authorElena Pourmal <epourmal@hdfgroup.org>1998-02-10 15:22:51 (GMT)
committerElena Pourmal <epourmal@hdfgroup.org>1998-02-10 15:22:51 (GMT)
commit66d18e9bf2fc9bf96f8a3fed4807385d8cbee5fd (patch)
tree7317b1ff1e59403b8e90ca3f25c11a432f392928 /examples
parent32029aa6484842cd134b206bf5d4477f226298f4 (diff)
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[svn-r236] Example showing how to group objects in the HDF5 file is added.
Diffstat (limited to 'examples')
-rw-r--r--examples/h5_group.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/examples/h5_group.c b/examples/h5_group.c
new file mode 100644
index 0000000..662d24c
--- /dev/null
+++ b/examples/h5_group.c
@@ -0,0 +1,84 @@
+#include "hdf5.h"
+
+
+#define FILE "DIR.h5"
+#define RANK 2
+
+main()
+{
+
+ hid_t file, dir;
+ hid_t dataset, dataspace;
+
+ herr_t status;
+ size_t dims[2];
+
+/*
+ * Create a file.
+ */
+file = H5Fcreate(FILE, H5ACC_OVERWRITE, H5C_DEFAULT, H5C_DEFAULT);
+
+/*
+ * Create two groups in a file.
+ */
+dir = H5Gcreate(file, "/IntData", 0);
+status = H5Gclose(dir);
+
+dir = H5Gcreate(file,"/FloatData", 0);
+status = H5Gclose(dir);
+
+/*
+ * Create dataset in the /IntData group by specifying full path.
+ */
+dims[0] = 2;
+dims[1] = 3;
+dataspace = H5Pcreate_simple(RANK, dims, NULL);
+dataset = H5Dcreate(file, "/IntData/IntArray", H5T_NATIVE_INT, dataspace, H5C_DEFAULT);
+
+H5Pclose(dataspace);
+H5Dclose(dataset);
+
+/*
+ * Set current group to /IntData and attach to the dataset IntArray.
+ */
+
+status = H5Gset (file, "/IntData");
+dataset = H5Dopen(file, "IntArray");
+if (dataset > 0) printf("IntArray dataset in /IntData group is found\n");
+H5Dclose(dataset);
+
+/*
+ * Set current group to /FloatData.
+ */
+status = H5Gset (file, "/FloatData");
+
+/*
+ * Create two datasets
+ */
+
+dims[0] = 5;
+dims[1] = 10;
+dataspace = H5Pcreate_simple(RANK, dims, NULL);
+dataset = H5Dcreate(file, "FloatArray", H5T_NATIVE_FLOAT, dataspace, H5C_DEFAULT);
+
+H5Pclose(dataspace);
+H5Dclose(dataset);
+
+dims[0] = 4;
+dims[1] = 6;
+dataspace = H5Pcreate_simple(RANK, dims, NULL);
+dataset = H5Dcreate(file, "DoubleArray", H5T_NATIVE_DOUBLE, dataspace, H5C_DEFAULT);
+
+H5Pclose(dataspace);
+H5Dclose(dataset);
+
+/*
+ * Attach to /FloatData/DoubleArray dataset
+ */
+
+dataset = H5Dopen(file, "/FloatData/DoubleArray");
+if (dataset > 0) printf("/FloatData/DoubleArray dataset is found\n");
+H5Dclose(dataset);
+H5Fclose(file);
+
+}