C++ H5std_string::size方法代码示例

void DepthMapLogger::DumpDepthMap(const xn::DepthMetaData& dmd, const xn::SceneMetaData& smd)
{
	static char name_str[20], comment_str[255];

	// Don't do anything if the h5 file is not open
	if(!p_h5_file_ || !p_frames_group_) { return; }

	// References to various bits of the HDF5 output
	H5File &file(*p_h5_file_);
	Group &frames_group(*p_frames_group_);

	// This frame's index is the number of frames we've previously saved
	hsize_t this_frame_idx = frames_group.getNumObjs();

	// Create this frame's group
	snprintf(name_str, 20, "frame_%06lld", this_frame_idx);
	snprintf(comment_str, 255, "Data for frame %lld", this_frame_idx);
	Group this_frame_group(frames_group.createGroup(name_str));
	this_frame_group.setComment(".", comment_str);

	// Create attributes for this group
	Attribute idx_attr = this_frame_group.createAttribute("idx", PredType::NATIVE_HSIZE, DataSpace());
	idx_attr.write(PredType::NATIVE_HSIZE, &this_frame_idx);

	// Create this frame's datasets
	DSetCreatPropList creat_props;
	uint16_t fill_value(0);
	creat_props.setFillValue(PredType::NATIVE_UINT16, &fill_value);

	hsize_t rows(static_cast<hsize_t>(dmd.YRes())), cols(static_cast<hsize_t>(dmd.XRes()));
	hsize_t creation_dims[2] = { rows, cols };
	hsize_t max_dims[2] = { rows, cols };
	DataSpace mem_space(2, creation_dims, max_dims);

	DataSet depth_ds(this_frame_group.createDataSet(
		"depth", PredType::NATIVE_UINT16, mem_space, creat_props));
	DataSet label_ds(this_frame_group.createDataSet(
		"label", PredType::NATIVE_UINT16, mem_space, creat_props));

	// Get depth and label buffers
	const uint16_t *p_depths = dmd.Data();
	const uint16_t *p_labels = smd.Data();

	// Write depth data
	depth_ds.write(p_depths, PredType::NATIVE_UINT16);

	// Write label data
	label_ds.write(p_labels, PredType::NATIVE_UINT16);

	// Convert non-zero depth values into 3D point positions
	XnPoint3D *pts = new XnPoint3D[rows*cols];
	uint16_t *pt_labels = new uint16_t[rows*cols];
	size_t n_pts(0);
	for(size_t depth_idx(0); depth_idx < rows*cols; ++depth_idx) {
		// Skip zero depth values
		if(p_depths[depth_idx] == 0) {
			continue;
		}

		// Store projective-values
		pts[n_pts].X = depth_idx % cols;
		pts[n_pts].Y = depth_idx / cols;
		pts[n_pts].Z = p_depths[depth_idx];
		pt_labels[n_pts] = p_labels[depth_idx];
		++n_pts;
	}
	g_DepthGenerator.ConvertProjectiveToRealWorld(n_pts, pts, pts);

	if (n_pts > 0)
	{
		// Create points dataset
		hsize_t pts_creation_dims[2] = { n_pts, 3 };
		hsize_t pts_max_dims[2] = { n_pts, 3 };
		DataSpace pts_mem_space(2, pts_creation_dims, pts_max_dims);
		DataSet pts_ds(this_frame_group.createDataSet(
			"points", PredType::NATIVE_FLOAT, pts_mem_space, creat_props));
		hsize_t pt_labels_creation_dims[1] = { n_pts };
		hsize_t pt_labels_max_dims[1] = { n_pts };
		DataSpace pt_labels_mem_space(1, pt_labels_creation_dims, pt_labels_max_dims);
		DataSet pt_labels_ds(this_frame_group.createDataSet(
			"point_labels", PredType::NATIVE_UINT16, pt_labels_mem_space, creat_props));

		// Write points data
		pts_ds.write(pts, PredType::NATIVE_FLOAT);
		pt_labels_ds.write(pt_labels, PredType::NATIVE_UINT16);
	}

	// Create groups to store detected users
	Group users_group(this_frame_group.createGroup("users"));

	// Dump each user in turn
	char strLabel[50] = "";
	XnUserID aUsers[15];
	XnUInt16 nUsers = 15;
	g_UserGenerator.GetUsers(aUsers, nUsers);
	for (int i = 0; i < nUsers; ++i)
	{
		// Create a group for this user
		snprintf(name_str, 20, "user_%02d", aUsers[i]);
		Group this_user_group(users_group.createGroup(name_str));
//.........这里部分代码省略.........