Source code for pycif.plugins.obsvects.standard.ini_mapper

def ini_mapper(obsvect, general_mapper={}, backup_comps={}, transforms_order=[], ref_transform="", **kwargs):
    """Build the transform mapper for the observation vector.

    Scans the datavect components and collects every ``(component, tracer)``
    pair whose ``isobs`` flag is ``True``.  These pairs become the output
    tracer IDs of the observation operator — i.e. the quantities that the
    ``toobsvect`` system transform will write into ``obsvect.ysim``.

    Args:
        obsvect (Plugin): obsvect plugin instance (carries the populated
            ``datavect`` with component/tracer metadata).
        general_mapper (dict): mapper dictionaries from other transforms;
            unused but accepted for interface consistency.
        backup_comps (dict): unused; accepted for interface consistency.
        transforms_order (list): unused; accepted for interface consistency.
        ref_transform (str): unused; accepted for interface consistency.
        **kwargs: unused.

    Returns:
        dict: mapper dict with ``"inputs": {}`` (observation vector has no
        inputs from other transforms) and ``"outputs": {(comp, trcr): …}``
        for every observation tracer.
    """
    # Output dictionary
    obs_outputs = {}
    components = obsvect.datavect.components
    for comp in components.attributes:
        component = getattr(components, comp)
    
        # Skip if component does not have parameters
        if not hasattr(component, "parameters"):
            continue
    
        for trcr in component.parameters.attributes:
            tracer = getattr(component.parameters, trcr)
            
            if tracer.isobs:
                obs_outputs[(comp, trcr)] = {"isobs": True}

    # Executable
    mapper = {
        "inputs": {},
        "outputs": obs_outputs,
    }

    return mapper