kicad/pcbnew/router/pns_meander_skew_placer.h

70 lines
1.8 KiB
C++

/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013-2015 CERN
* Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __PNS_MEANDER_SKEW_PLACER_H
#define __PNS_MEANDER_SKEW_PLACER_H
#include "pns_meander_placer.h"
#include "pns_diff_pair.h"
namespace PNS {
class ROUTER;
class SHOVE;
class OPTIMIZER;
/**
* Class MEANDER_SKEW_PLACER
*
* Differential pair skew adjustment algorithm.
*/
class MEANDER_SKEW_PLACER : public MEANDER_PLACER
{
public:
MEANDER_SKEW_PLACER( ROUTER* aRouter );
~MEANDER_SKEW_PLACER();
/// @copydoc PLACEMENT_ALGO::Start()
bool Start( const VECTOR2I& aP, ITEM* aStartItem );
/// @copydoc PLACEMENT_ALGO::Move()
bool Move( const VECTOR2I& aP, ITEM* aEndItem );
/// @copydoc MEANDER_PLACER_BASE::TuningInfo()
const wxString TuningInfo() const;
private:
int currentSkew( ) const;
int itemsetLength( const ITEM_SET& aSet ) const;
int origPathLength () const;
DIFF_PAIR m_originPair;
ITEM_SET m_tunedPath, m_tunedPathP, m_tunedPathN;
int m_coupledLength;
};
}
#endif // __PNS_MEANDER_SKEW_PLACER_H