From aacbf33e6362aca6d5ad10a4bc1e8dadf3980f4d Mon Sep 17 00:00:00 2001
From: Thorsten Liebig <Thorsten.Liebig@gmx.de>
Date: Fri, 17 Feb 2012 12:30:58 +0100
Subject: [PATCH] hdf5 writer: set and create current group

---
 tools/hdf5_file_writer.cpp | 19 +++++++++++++++++++
 tools/hdf5_file_writer.h   |  2 +-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/tools/hdf5_file_writer.cpp b/tools/hdf5_file_writer.cpp
index 9c556ad..1043070 100644
--- a/tools/hdf5_file_writer.cpp
+++ b/tools/hdf5_file_writer.cpp
@@ -89,6 +89,25 @@ hid_t HDF5_File_Writer::OpenGroup(hid_t hdf5_file, string group)
 	return grp;
 }
 
+void HDF5_File_Writer::SetCurrentGroup(std::string group, bool createGrp)
+{
+	m_Group = group;
+	if (createGrp==false)
+		return;
+
+	hid_t hdf5_file = H5Fopen( m_filename.c_str(), H5F_ACC_RDWR, H5P_DEFAULT );
+	if (hdf5_file<0)
+	{
+		cerr << "HDF5_File_Writer::SetCurrentGroup: Error, opening the given file """ << m_filename << """ failed" << endl;
+		return;
+	}
+	hid_t hdf5_group = OpenGroup(hdf5_file, m_Group);
+	if (hdf5_group<0)
+		cerr << "HDF5_File_Writer::WriteData: Error opening group" << endl;
+	H5Gclose(hdf5_group);
+	H5Fclose(hdf5_file);
+}
+
 bool HDF5_File_Writer::WriteRectMesh(unsigned int const* numLines, double const* const* discLines, int MeshType, double scaling)
 {
 	float* array[3];
diff --git a/tools/hdf5_file_writer.h b/tools/hdf5_file_writer.h
index 4bae3d8..625224d 100644
--- a/tools/hdf5_file_writer.h
+++ b/tools/hdf5_file_writer.h
@@ -43,7 +43,7 @@ public:
 	bool WriteAtrribute(std::string locName, std::string attr_name, float const* value, hsize_t size);
 	bool WriteAtrribute(std::string locName, std::string attr_name, std::vector<float> values);
 
-	void SetCurrentGroup(std::string group) {m_Group = group;}
+	void SetCurrentGroup(std::string group, bool createGrp=true);
 
 protected:
 	std::string m_filename;