IWireSelectors.h

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/**
   Some wire selectors.

   Fixme: this isn't really appropriate for an interface package.

 */

#ifndef WIRECELL_WIRESELECTORS
#define  WIRECELL_WIRESELECTORS

#include "WireCellIface/IWire.h"
#include <boost/function.hpp>

namespace WireCell {

    typedef boost::function<bool (IWire::pointer)> wire_selector;

    /// Select wires by plane (and apa/face)
    struct WirePlaneSelector {
        int layers, face, apa;

        WirePlaneSelector(int layer_mask, int face=0, int apa=0)
            : layers(layer_mask), face(face), apa(apa) {}

        bool operator()(IWire::pointer wire) { 
            WirePlaneId ident = wire->planeid();

            if (layers && !(layers&ident.ilayer())) { return false; }
            if (apa >= 0 && ident.apa() != apa) { return false; }
            if (face >= 0 && ident.face() != face) { return false; }

            return true;
        }
    };
        
    // Select all wires on default apa/face
    extern wire_selector select_all_wires;

    // Select one plane on default apa/face
    extern wire_selector select_u_wires;
    extern wire_selector select_v_wires;
    extern wire_selector select_w_wires;
    extern wire_selector select_uvw_wires[3];

}

#endif