kicad/pcbnew/router/pns_walkaround.h

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/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013-2014 CERN
* Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
* 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.
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*
* 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.
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*
* 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_WALKAROUND_H
#define __PNS_WALKAROUND_H
#include <set>
#include "pns_line.h"
#include "pns_node.h"
#include "pns_router.h"
#include "pns_logger.h"
#include "pns_algo_base.h"
namespace PNS {
class WALKAROUND : public ALGO_BASE
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{
static const int DefaultIterationLimit = 50;
public:
WALKAROUND( NODE* aWorld, ROUTER* aRouter ) :
ALGO_BASE ( aRouter ),
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m_world( aWorld ),
m_iterationLimit( DefaultIterationLimit )
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{
m_forceWinding = false;
m_itemMask = ITEM::ANY_T;
// Initialize other members, to avoid uninitialized variables.
m_iteration = 0;
m_forceCw = false;
m_forceLongerPath = false;
m_lengthLimitOn = true;
}
~WALKAROUND() {};
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enum WALKAROUND_STATUS
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{
IN_PROGRESS = 0,
ALMOST_DONE,
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DONE,
STUCK
};
struct RESULT
{
RESULT( WALKAROUND_STATUS aStatusCw = STUCK, WALKAROUND_STATUS aStatusCcw = STUCK, const LINE& aLineCw = LINE(), const LINE& aLineCcw = LINE() )
{
statusCw = aStatusCw;
statusCcw = aStatusCcw;
lineCw = aLineCw;
lineCcw = aLineCcw;
}
WALKAROUND_STATUS statusCw, statusCcw;
LINE lineCw, lineCcw;
};
void SetWorld( NODE* aNode )
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{
m_world = aNode;
}
void SetIterationLimit( const int aIterLimit )
{
m_iterationLimit = aIterLimit;
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}
void SetSolidsOnly( bool aSolidsOnly )
{
if( aSolidsOnly )
m_itemMask = ITEM::SOLID_T;
else
m_itemMask = ITEM::ANY_T;
}
void SetItemMask( int aMask )
{
m_itemMask = aMask;
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}
void SetForceWinding ( bool aEnabled, bool aCw )
{
m_forceCw = aCw;
m_forceWinding = aEnabled;
}
void RestrictToSet( bool aEnabled, const std::set<ITEM*>& aSet );
WALKAROUND_STATUS Route( const LINE& aInitialPath, LINE& aWalkPath,
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bool aOptimize = true );
const RESULT Route( const LINE& aInitialPath );
void SetLengthLimit( bool aEnable )
{
m_lengthLimitOn = aEnable;
}
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private:
void start( const LINE& aInitialPath );
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WALKAROUND_STATUS singleStep( LINE& aPath, bool aWindingDirection );
NODE::OPT_OBSTACLE nearestObstacle( const LINE& aPath );
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NODE* m_world;
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int m_iteration;
int m_iterationLimit;
int m_itemMask;
bool m_forceWinding;
bool m_forceCw;
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VECTOR2I m_cursorPos;
NODE::OPT_OBSTACLE m_currentObstacle[2];
std::set<ITEM*> m_restrictedSet;
std::vector<VECTOR2I> m_restrictedVertices;
bool m_forceLongerPath;
bool m_lengthLimitOn;
};
}
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#endif // __PNS_WALKAROUND_H