156 lines
4.1 KiB
C++
156 lines
4.1 KiB
C++
/*
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* KiRouter - a push-and-(sometimes-)shove PCB router
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*
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* Copyright (C) 2013-2015 CERN
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* Copyright (C) 2016-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PNS_MEANDER_PLACER_BASE_H
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#define __PNS_MEANDER_PLACER_BASE_H
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#include <math/vector2d.h>
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#include <geometry/shape_line_chain.h>
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#include "pns_node.h"
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#include "pns_line.h"
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#include "pns_placement_algo.h"
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#include "pns_meander.h"
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namespace PNS {
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class ROUTER;
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class SHOVE;
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class OPTIMIZER;
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/**
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* Base class for Single trace & Differential pair meandering tools, as both of them share a
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* lot of code.
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*/
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class MEANDER_PLACER_BASE : public PLACEMENT_ALGO
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{
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public:
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///< Result of the length tuning operation
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enum TUNING_STATUS {
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TOO_SHORT = 0,
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TOO_LONG,
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TUNED
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};
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MEANDER_PLACER_BASE( ROUTER* aRouter );
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virtual ~MEANDER_PLACER_BASE();
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/**
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* Return the resultant length or skew of the tuned traces.
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*/
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virtual long long int TuningResult() const = 0;
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/**
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* Return the tuning status (too short, too long, etc.) of the trace(s) being tuned.
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*/
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virtual TUNING_STATUS TuningStatus() const = 0;
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/**
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* Increase/decreases the current meandering amplitude by one step.
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*
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* @param aSign direction (negative = decrease, positive = increase).
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*/
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virtual void AmplitudeStep( int aSign );
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/**
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* Increase/decrease the current meandering spacing by one step.
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*
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* @param aSign direction (negative = decrease, positive = increase).
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*/
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virtual void SpacingStep( int aSign );
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/**
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* Return the clearance of the track(s) being length tuned
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*
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* @return clearance value in internal units
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*/
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virtual int Clearance();
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/**
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* Return the current meandering configuration.
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*
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* @return the settings
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*/
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virtual const MEANDER_SETTINGS& MeanderSettings() const;
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/*
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* Set the current meandering configuration.
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*
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* @param aSettings the settings.
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*/
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virtual void UpdateSettings( const MEANDER_SETTINGS& aSettings);
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/**
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* Checks if it's OK to place the shape aShape (i.e. if it doesn't cause DRC violations
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* or collide with other meanders).
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*
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* @param aShape the shape to check.
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* @return true if the shape fits.
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*/
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virtual bool CheckFit( MEANDER_SHAPE* aShape )
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{
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return false;
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}
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int GetTotalPadToDieLength( const LINE& aLine ) const;
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virtual const ITEM_SET TunedPath() = 0;
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protected:
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/**
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* Take a set of meanders in \a aTuned and tunes their length to extend the original line
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* length by \a aElongation.
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*/
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void tuneLineLength( MEANDERED_LINE& aTuned, long long int aElongation );
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VECTOR2I getSnappedStartPoint( LINKED_ITEM* aStartItem, VECTOR2I aStartPoint );
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/**
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* Calculate the total length of the line represented by an item set (tracks and vias)
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* @param aLine
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* @return
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*/
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long long int lineLength( const ITEM_SET& aLine, const SOLID* aStartPad, const SOLID* aEndPad ) const;
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///< Pointer to world to search colliding items.
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NODE* m_world;
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///< Width of the meandered trace(s).
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int m_currentWidth;
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///< Meander settings.
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MEANDER_SETTINGS m_settings;
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///< The current end point.
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VECTOR2I m_currentEnd;
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SOLID* m_startPad_p;
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SOLID* m_endPad_p;
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SOLID* m_startPad_n;
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SOLID* m_endPad_n;
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};
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}
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#endif // __PNS_MEANDER_PLACER_BASE_H
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