Method SetSelectors

Samples/NiUserSelection/SampleManager.cpp:113–170

}

XnStatus DefaultInitializerWithCalibPose::SetSelectors()
{
    // get the user generator (required as an input).
    xn::UserGenerator *pUserGenerator=m_pUserTracker->GetUserGenerator();

    // make sure the user generator is good.
    if(pUserGenerator->IsCapabilitySupported(XN_CAPABILITY_SKELETON)==FALSE)
    {
        RETURN_WITH_CLEANUP(XN_STATUS_ERROR, "User generator does not support skeleton!"); 
    }

    // tracking initializer to use is the default one.
    m_pTrackingInitializer=XN_NEW(DefaultTrackingInitializer,pUserGenerator); 
    if(m_pTrackingInitializer->IsValid()==FALSE)
    {
        RETURN_WITH_CLEANUP(XN_STATUS_ERROR, "Failed to create tracking initializer"); 
    }

    // pick the user selector.


    // figure out which type of user selection to use.
    // Option 1: if we need calibration pose - that is the type to use (and exit if we can't support it)
    // Option 2: if do not need calibration pose we choose the overridden selector
    if(pUserGenerator->GetSkeletonCap().NeedPoseForCalibration()==TRUE)
    {
		// make sure we have a pose detection capability (which is what this selector is all about).
		if(pUserGenerator->IsCapabilitySupported(XN_CAPABILITY_POSE_DETECTION)==FALSE)
		{
			RETURN_WITH_CLEANUP(XN_STATUS_ERROR, "User tracker invalid"); 
		
		}
        // first we get the pose from the skeleton capability
        char poseString[50];
        pUserGenerator->GetSkeletonCap().GetCalibrationPose(poseString);
        // we now create the appropriate pose selector chooser
        m_pUserSelector=XN_NEW(PoseUserSelector,pUserGenerator,m_pTrackingInitializer,poseString);
    }
    else
    {
        // get the overridden user selector
        m_pUserSelector=CreateUserSelector(pUserGenerator,m_pTrackingInitializer);
    }

    // make sure the user selector is valid
    if(m_pUserSelector->IsValid()==FALSE)
    {
        RETURN_WITH_CLEANUP(XN_STATUS_ERROR,"Failed to create user selector");
    }

    // initialize the tracking initializer with the relevant user selector.
    m_pTrackingInitializer->SetUserTracker(m_pUserSelector);

    // set the user selector and tracking initializer to the 
    m_pUserTracker->InitUserSelection(m_pUserSelector,m_pTrackingInitializer);

    return XN_STATUS_OK; 
}