RN_NET Class Reference

Describe ratsnest for a single net. More...

#include <ratsnest_data.h>

Classes
class	TRIANGULATOR_STATE

Public Member Functions
	RN_NET ()
bool	IsDirty () const
	Return state of the 'dirty' flag, indicating that ratsnest for a given net is invalid and requires an update.
void	UpdateNet ()
	Recompute ratsnest for a net.
void	RemoveInvalidRefs ()
void	OptimizeRNEdges ()
	Find optimal ends of RNEdges.
void	Clear ()
void	AddCluster (std::shared_ptr< CN_CLUSTER > aCluster)
unsigned int	GetNodeCount () const
const std::vector< CN_EDGE > &	GetEdges () const
std::vector< CN_EDGE > &	GetEdges ()
bool	NearestBicoloredPair (RN_NET *aOtherNet, VECTOR2I &aPos1, VECTOR2I &aPos2) const

Protected Member Functions
void	compute ()
	< Recompute ratsnest from scratch.
void	kruskalMST (const std::vector< CN_EDGE > &aEdges)

Protected Attributes
std::multiset< std::shared_ptr< CN_ANCHOR >, CN_PTR_CMP >	m_nodes
	< Vector of nodes
std::vector< CN_EDGE >	m_boardEdges
	Vector of edges that makes ratsnest for a given net.
std::vector< CN_EDGE >	m_rnEdges
	Flag indicating necessity of recalculation of ratsnest for a net.
bool	m_dirty
std::shared_ptr< TRIANGULATOR_STATE >	m_triangulator

Detailed Description

Describe ratsnest for a single net.

Definition at line 63 of file ratsnest_data.h.

Constructor & Destructor Documentation

RN_NET()

RN_NET::RN_NET

(

)

Definition at line 282 of file ratsnest_data.cpp.

References m_triangulator.

Member Function Documentation

AddCluster()

void RN_NET::AddCluster

(

std::shared_ptr< CN_CLUSTER >

aCluster

)

Definition at line 568 of file ratsnest_data.cpp.

References m_boardEdges, and m_nodes.

Referenced by CONNECTIVITY_DATA::addRatsnestCluster().

Clear()

void RN_NET::Clear

(

)

Definition at line 558 of file ratsnest_data.cpp.

References m_boardEdges, m_dirty, m_nodes, and m_rnEdges.

compute()

void RN_NET::compute ( )

protected

< Recompute ratsnest from scratch.

Compute the minimum spanning tree using Kruskal's algorithm

Definition at line 288 of file ratsnest_data.cpp.

References kruskalMST(), m_boardEdges, m_nodes, m_rnEdges, m_triangulator, and PROF_TIMER::Show().

Referenced by UpdateNet().

GetEdges() [1/2]

std::vector< CN_EDGE > & RN_NET::GetEdges ( )

inline

Definition at line 110 of file ratsnest_data.h.

References m_rnEdges.

GetEdges() [2/2]

const std::vector< CN_EDGE > & RN_NET::GetEdges ( ) const

inline

Definition at line 97 of file ratsnest_data.h.

References end, m_rnEdges, and CN_EDGE::StableSortCompare().

Referenced by CONNECTIVITY_DATA::GetRatsnestForComponent(), CONNECTIVITY_DATA::GetRatsnestForItems(), CONNECTIVITY_DATA::GetRatsnestForPad(), ROUTER_TOOL::Init(), ROUTER_TOOL::RouteSelected(), RATSNEST_SEARCH_HANDLER::Search(), and RATSNEST_VIEW_ITEM::ViewDraw().

GetNodeCount()

unsigned int RN_NET::GetNodeCount ( ) const

inline

Definition at line 95 of file ratsnest_data.h.

References m_nodes.

Referenced by CONNECTIVITY_DATA::ComputeLocalRatsnest().

IsDirty()

bool RN_NET::IsDirty ( ) const

inline

Return state of the 'dirty' flag, indicating that ratsnest for a given net is invalid and requires an update.

Returns

True if ratsnest requires recomputation, false otherwise.

Definition at line 74 of file ratsnest_data.h.

References m_dirty.

kruskalMST()

void RN_NET::kruskalMST ( const std::vector< CN_EDGE > &  aEdges )

protected

Definition at line 110 of file ratsnest_data.cpp.

References m_nodes, m_rnEdges, and disjoint_set::unite().

Referenced by compute().

NearestBicoloredPair()

bool RN_NET::NearestBicoloredPair	(	RN_NET *	aOtherNet,
		VECTOR2I &	aPos1,
		VECTOR2I &	aPos2
	)		const

Sweep-line algorithm to cut the number of comparisons to find the closest point

Step 1: The outer loop needs to be the subset (selected nodes) as it is a linear search

Step 2: O( log n ) search to identify a close element ordered by x The fwd_it iterator will move forward through the elements while the rev_it iterator will move backward through the same set

As soon as the x distance (primary sort) is larger than the smallest distance, stop checking further elements

Step 3: using the same starting point, check points backwards for closer points

Definition at line 599 of file ratsnest_data.cpp.

References VECTOR2< int32_t >::ECOORD_MAX, m_nodes, SEG::Square(), and VECTOR2< T >::SquaredEuclideanNorm().

Referenced by CONNECTIVITY_DATA::ComputeLocalRatsnest().

OptimizeRNEdges()

void RN_NET::OptimizeRNEdges

(

)

Find optimal ends of RNEdges.

The MST will have found the closest anchors, but when zones are involved we might have points closer than the anchors.

Normally called after UpdateNet(), but from a separate multi-threaded loop for safety.

Definition at line 351 of file ratsnest_data.cpp.

References SHAPE_LINE_CHAIN::BBox(), CENTER, SHAPE_LINE_CHAIN::ClosestSegmentsFast(), CN_ITEM::ConnectedItems(), SHAPE_LINE_CHAIN::CPoints(), CN_ITEM::GetBoardLayer(), BOX2< Vec >::GetCenter(), CN_ZONE_LAYER::GetOutline(), and m_rnEdges.

RemoveInvalidRefs()

void RN_NET::RemoveInvalidRefs

(

)

Definition at line 548 of file ratsnest_data.cpp.

References m_boardEdges, and m_rnEdges.

UpdateNet()

void RN_NET::UpdateNet

(

)

Recompute ratsnest for a net.

Definition at line 540 of file ratsnest_data.cpp.

References compute(), and m_dirty.

Member Data Documentation

m_boardEdges

std::vector<CN_EDGE> RN_NET::m_boardEdges

protected

Vector of edges that makes ratsnest for a given net.

Definition at line 134 of file ratsnest_data.h.

Referenced by AddCluster(), Clear(), compute(), and RemoveInvalidRefs().

m_dirty

bool RN_NET::m_dirty

protected

Definition at line 140 of file ratsnest_data.h.

Referenced by Clear(), IsDirty(), and UpdateNet().

m_nodes

std::multiset<std::shared_ptr<CN_ANCHOR>, CN_PTR_CMP> RN_NET::m_nodes

protected

< Vector of nodes

Vector of edges that make pre-defined connections

Definition at line 131 of file ratsnest_data.h.

Referenced by AddCluster(), Clear(), compute(), GetNodeCount(), kruskalMST(), and NearestBicoloredPair().

m_rnEdges

std::vector<CN_EDGE> RN_NET::m_rnEdges

protected

Flag indicating necessity of recalculation of ratsnest for a net.

Definition at line 137 of file ratsnest_data.h.

Referenced by Clear(), compute(), GetEdges(), kruskalMST(), OptimizeRNEdges(), and RemoveInvalidRefs().

m_triangulator

std::shared_ptr<TRIANGULATOR_STATE> RN_NET::m_triangulator

protected

Definition at line 144 of file ratsnest_data.h.

Referenced by compute(), and RN_NET().

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The documentation for this class was generated from the following files:

• ratsnest_data.h
• ratsnest_data.cpp