SHAPE_LINE_CHAIN_BASE Class Reference

#include <shape.h>

Inheritance diagram for SHAPE_LINE_CHAIN_BASE:

Public Member Functions
	SHAPE_LINE_CHAIN_BASE (SHAPE_TYPE aType)
virtual	~SHAPE_LINE_CHAIN_BASE ()
virtual bool	Collide (const VECTOR2I &aP, int aClearance=0, int *aActual=nullptr, VECTOR2I *aLocation=nullptr) const override
	Check if point aP lies closer to us than aClearance. More...
virtual bool	Collide (const SEG &aSeg, int aClearance=0, int *aActual=nullptr, VECTOR2I *aLocation=nullptr) const override
	Check if segment aSeg lies closer to us than aClearance. More...
SEG::ecoord	SquaredDistance (const VECTOR2I &aP, bool aOutlineOnly=false) const
bool	PointInside (const VECTOR2I &aPt, int aAccuracy=0, bool aUseBBoxCache=false) const
	Check if point aP lies inside a polygon (any type) defined by the line chain. More...
bool	PointOnEdge (const VECTOR2I &aP, int aAccuracy=0) const
	Check if point aP lies on an edge or vertex of the line chain. More...
int	EdgeContainingPoint (const VECTOR2I &aP, int aAccuracy=0) const
	Check if point aP lies on an edge or vertex of the line chain. More...
virtual const VECTOR2I	GetPoint (int aIndex) const =0
virtual const SEG	GetSegment (int aIndex) const =0
virtual size_t	GetPointCount () const =0
virtual size_t	GetSegmentCount () const =0
virtual bool	IsClosed () const =0
virtual BOX2I *	GetCachedBBox () const
virtual SHAPE *	Clone () const
	Return a dynamically allocated copy of the shape. More...
bool	IsNull () const
	Return true if the shape is a null shape. More...
virtual bool	Collide (const SHAPE *aShape, int aClearance, VECTOR2I *aMTV) const
	Check if the boundary of shape (this) lies closer to the shape aShape than aClearance, indicating a collision. More...
virtual bool	Collide (const SHAPE *aShape, int aClearance=0, int *aActual=nullptr, VECTOR2I *aLocation=nullptr) const
virtual const BOX2I	BBox (int aClearance=0) const =0
	Compute a bounding box of the shape, with a margin of aClearance a collision. More...
virtual VECTOR2I	Centre () const
	Compute a center-of-mass of the shape. More...
virtual void	Rotate (double aAngle, const VECTOR2I &aCenter={ 0, 0 })=0
virtual void	Move (const VECTOR2I &aVector)=0
virtual bool	IsSolid () const =0
virtual bool	Parse (std::stringstream &aStream)
virtual const std::string	Format () const
FACET *	NewFacet ()
SGNODE *	CalcShape (SGNODE *aParent, SGNODE *aColor, WRL1_ORDER aVertexOrder, float aCreaseLimit=0.74317, bool isVRML2=false)
SHAPE_TYPE	Type () const
	Return the type of the shape. More...
virtual bool	HasIndexableSubshapes () const
virtual size_t	GetIndexableSubshapeCount () const
virtual void	GetIndexableSubshapes (std::vector< SHAPE * > &aSubshapes)

Static Public Attributes
static const int	MIN_PRECISION_IU = 4
	This is the minimum precision for all the points in a shape. More...

Protected Types
typedef VECTOR2I::extended_type	ecoord

Protected Attributes
SHAPE_TYPE	m_type
	< type of our shape More...

Detailed Description

Definition at line 240 of file shape.h.

Member Typedef Documentation

ecoord

typedef VECTOR2I::extended_type SHAPE::ecoord

protectedinherited

Definition at line 236 of file shape.h.

Constructor & Destructor Documentation

SHAPE_LINE_CHAIN_BASE()

SHAPE_LINE_CHAIN_BASE::SHAPE_LINE_CHAIN_BASE ( SHAPE_TYPE  aType )

inline

Definition at line 243 of file shape.h.

 :
 SHAPE( aType )
 {
 }

~SHAPE_LINE_CHAIN_BASE()

virtual SHAPE_LINE_CHAIN_BASE::~SHAPE_LINE_CHAIN_BASE ( )

inlinevirtual

Definition at line 248 of file shape.h.

 {
 }

Member Function Documentation

BBox()

virtual const BOX2I SHAPE::BBox ( int  aClearance = 0 ) const

pure virtualinherited

Compute a bounding box of the shape, with a margin of aClearance a collision.

Parameters

aClearance

how much the bounding box is expanded wrs to the minimum enclosing rectangle for the shape.

Returns

the bounding box.

Implemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_ARC, SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI, SHAPE_RECT, SHAPE_SIMPLE, SHAPE_COMPOUND, SHAPE_CIRCLE, SHAPE_SEGMENT, and SHAPE_NULL.

Referenced by boundingBox(), SHAPE::Centre(), PNS::ARC::ChangedArea(), PNS::VIA::ChangedArea(), DRC_RTREE::CheckColliding(), SHAPE_INDEX_LIST< PNS::ITEM * >::Query(), SHAPE_INDEX< T >::Query(), SHAPE_INDEX_LIST< T, >::query_iterator::query_iterator(), SHAPE_INDEX_LIST< T, >::SHAPE_ENTRY::SHAPE_ENTRY(), and ROUTER_PREVIEW_ITEM::ViewBBox().

CalcShape()

SGNODE * SHAPE::CalcShape ( SGNODE *  aParent, SGNODE *  aColor, WRL1_ORDER  aVertexOrder, float  aCreaseLimit = 0.74317, bool  isVRML2 = false  )

inherited

Definition at line 703 of file wrlfacet.cpp.

{
 if( facets.empty() || !facets.front()->HasMinPoints() )
 return nullptr;

 std::vector< std::list< FACET* > > flist;

 // determine the max. index and size flist as appropriate
 std::list< FACET* >::iterator sF = facets.begin();
 std::list< FACET* >::iterator eF = facets.end();

 int maxIdx = 0;
 int tmi;
 float maxV = 0.0;
 float tV = 0.0;

 while( sF != eF )
 {
 tV = ( *sF )->CalcFaceNormal();
 tmi = ( *sF )->GetMaxIndex();

 if( tmi > maxIdx )
 maxIdx = tmi;

 if( tV > maxV )
 maxV = tV;

 ++sF;
 }

 ++maxIdx;

 if( maxIdx < 3 )
 return nullptr;

 flist.resize( maxIdx );

 // create the lists of facets common to indices
 sF = facets.begin();

 while( sF != eF )
 {
 ( *sF )->Renormalize( tV );
 ( *sF )->CollectVertices( flist );
 ++sF;
 }

 // calculate the normals
 size_t vs = flist.size();

 for( size_t i = 0; i < vs; ++i )
 {
 sF = flist[i].begin();
 eF = flist[i].end();

 while( sF != eF )
 {
 ( *sF )->CalcVertexNormal( static_cast<int>( i ), flist[i], aCreaseLimit );
 ++sF;
 }
 }

 std::vector< WRLVEC3F > vertices;
 std::vector< WRLVEC3F > normals;
 std::vector< SGCOLOR > colors;

 // push the facet data to the final output list
 sF = facets.begin();
 eF = facets.end();

 while( sF != eF )
 {
 ( *sF )->GetData( vertices, normals, colors, aVertexOrder );
 ++sF;
 }

 flist.clear();

 if( vertices.size() < 3 )
 return nullptr;

 IFSG_SHAPE shapeNode( false );

 if( !isVRML2 )
 {
 shapeNode.NewNode( aParent );

 if( aColor )
 {
 if( nullptr == S3D::GetSGNodeParent( aColor ) )
 shapeNode.AddChildNode( aColor );
 else
 shapeNode.AddRefNode( aColor );
 }
 }

 std::vector< SGPOINT > lCPts; // vertex points in SGPOINT (double) format
 std::vector< SGVECTOR > lCNorm; // per-vertex normals
 vs = vertices.size();

 for( size_t i = 0; i < vs; ++i )
 {
 SGPOINT pt;
 pt.x = vertices[i].x;
 pt.y = vertices[i].y;
 pt.z = vertices[i].z;
 lCPts.push_back( pt );
 lCNorm.emplace_back( normals[i].x, normals[i].y, normals[i].z );
 }

 vertices.clear();
 normals.clear();

 IFSG_FACESET fsNode( false );

 if( !isVRML2 )
 fsNode.NewNode( shapeNode );
 else
 fsNode.NewNode( aParent );

 IFSG_COORDS cpNode( fsNode );
 cpNode.SetCoordsList( lCPts.size(), &lCPts[0] );
 IFSG_COORDINDEX ciNode( fsNode );

 for( int i = 0; i < (int)lCPts.size(); ++i )
 ciNode.AddIndex( i );

 IFSG_NORMALS nmNode( fsNode );
 nmNode.SetNormalList( lCNorm.size(), &lCNorm[0] );

 if( !colors.empty() )
 {
 IFSG_COLORS nmColor( fsNode );
 nmColor.SetColorList( colors.size(), &colors[0] );
 colors.clear();
 }

 if( !isVRML2 )
 return shapeNode.GetRawPtr();

 return fsNode.GetRawPtr();
}

References IFSG_NODE::AddChildNode(), IFSG_INDEX::AddIndex(), IFSG_NODE::AddRefNode(), SHAPE::facets, IFSG_NODE::GetRawPtr(), S3D::GetSGNodeParent(), IFSG_FACESET::NewNode(), IFSG_SHAPE::NewNode(), IFSG_COLORS::SetColorList(), IFSG_COORDS::SetCoordsList(), IFSG_NORMALS::SetNormalList(), SGPOINT::x, SGPOINT::y, and SGPOINT::z.

Referenced by WRL1FACESET::TranslateToSG(), WRL2FACESET::TranslateToSG(), and X3DIFACESET::TranslateToSG().

Centre()

virtual VECTOR2I SHAPE::Centre ( ) const

inlinevirtualinherited

Compute a center-of-mass of the shape.

Returns

the center-of-mass point

Definition at line 216 of file shape.h.

 {
 return BBox( 0 ).Centre(); // if nothing better is available....
 }

References SHAPE::BBox(), and BOX2< Vec >::Centre().

Referenced by Collide().

Clone()

virtual SHAPE* SHAPE::Clone ( ) const

inlinevirtualinherited

Return a dynamically allocated copy of the shape.

Return values

copy	of the shape

Reimplemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_ARC, SHAPE_RECT, SHAPE_SIMPLE, SHAPE_CIRCLE, SHAPE_SEGMENT, SHAPE_COMPOUND, and SHAPE_NULL.

Definition at line 139 of file shape.h.

 {
 assert( false );
 return nullptr;
 };

Referenced by PNS::ROUTER::markViolations(), ROUTER_PREVIEW_ITEM::ROUTER_PREVIEW_ITEM(), PNS::SOLID::SOLID(), and ROUTER_PREVIEW_ITEM::Update().

Collide() [1/4]

bool SHAPE::Collide ( const SHAPE *  aShape, int  aClearance, VECTOR2I *  aMTV  ) const

virtualinherited

Check if the boundary of shape (this) lies closer to the shape aShape than aClearance, indicating a collision.

Parameters

aShape	shape to check collision against
aClearance	minimum clearance
aMTV	minimum translation vector
aActual	[out] an optional pointer to an int to store the actual distance in the event of a collision.
aLocation	[out] an option pointer to a point to store a nearby location in the event of a collision.

Returns

true, if there is a collision.

Reimplemented in SHAPE_RECT, SHAPE_SEGMENT, and SHAPE_COMPOUND.

Definition at line 1103 of file shape_collisions.cpp.

{
 return collideShapes( this, aShape, aClearance, nullptr, nullptr, aMTV );
}

References collideShapes().

Collide() [2/4]

bool SHAPE::Collide ( const SHAPE *  aShape, int  aClearance = 0, int *  aActual = nullptr, VECTOR2I *  aLocation = nullptr  ) const

virtualinherited

Reimplemented in SHAPE_POLY_SET, SHAPE_ARC, SHAPE_RECT, SHAPE_SEGMENT, and SHAPE_COMPOUND.

Definition at line 1109 of file shape_collisions.cpp.

{
 return collideShapes( this, aShape, aClearance, aActual, aLocation, nullptr );
}

References collideShapes().

Collide() [3/4]

bool SHAPE_LINE_CHAIN_BASE::Collide ( const VECTOR2I &  aP, int  aClearance = 0, int *  aActual = nullptr, VECTOR2I *  aLocation = nullptr  ) const

overridevirtual

Check if point aP lies closer to us than aClearance.

Parameters

aP	the point to check for collisions with
aClearance	minimum distance that does not qualify as a collision.
aActual	an optional pointer to an int to store the actual distance in the event of a collision.

Returns

true, when a collision has been found

Reimplemented from SHAPE.

Reimplemented in SHAPE_LINE_CHAIN.

Definition at line 301 of file shape_line_chain.cpp.

{
 if( IsClosed() && PointInside( aP, aClearance ) )
 {
 if( aLocation )
 *aLocation = aP;

 if( aActual )
 *aActual = 0;

 return true;
 }

 SEG::ecoord closest_dist_sq = VECTOR2I::ECOORD_MAX;
 SEG::ecoord clearance_sq = SEG::Square( aClearance );
 VECTOR2I nearest;

 for( size_t i = 0; i < GetSegmentCount(); i++ )
 {
 const SEG& s = GetSegment( i );
 VECTOR2I pn = s.NearestPoint( aP );
 SEG::ecoord dist_sq = ( pn - aP ).SquaredEuclideanNorm();

 if( dist_sq < closest_dist_sq )
 {
 nearest = pn;
 closest_dist_sq = dist_sq;

 if( closest_dist_sq == 0 )
 break;

 // If we're not looking for aActual then any collision will do
 if( closest_dist_sq < clearance_sq && !aActual )
 break;
 }
 }

 if( closest_dist_sq == 0 || closest_dist_sq < clearance_sq )
 {
 if( aLocation )
 *aLocation = nearest;

 if( aActual )
 *aActual = sqrt( closest_dist_sq );

 return true;
 }

 return false;
}

References VECTOR2< T >::ECOORD_MAX, GetSegment(), GetSegmentCount(), IsClosed(), SEG::NearestPoint(), PointInside(), and SEG::Square().

Referenced by Collide().

Collide() [4/4]

bool SHAPE_LINE_CHAIN_BASE::Collide ( const SEG &  aSeg, int  aClearance = 0, int *  aActual = nullptr, VECTOR2I *  aLocation = nullptr  ) const

overridevirtual

Check if segment aSeg lies closer to us than aClearance.

Parameters

aSeg	the segment to check for collisions with
aClearance	minimum distance that does not qualify as a collision.
aActual	an optional pointer to an int to store the actual distance in the event of a collision.

Returns

true, when a collision has been found

Implements SHAPE.

Reimplemented in SHAPE_LINE_CHAIN, and SHAPE_SIMPLE.

Definition at line 437 of file shape_line_chain.cpp.

{
 if( IsClosed() && PointInside( aSeg.A ) )
 {
 if( aLocation )
 *aLocation = aSeg.A;

 if( aActual )
 *aActual = 0;

 return true;
 }

 SEG::ecoord closest_dist_sq = VECTOR2I::ECOORD_MAX;
 SEG::ecoord clearance_sq = SEG::Square( aClearance );
 VECTOR2I nearest;

 for( size_t i = 0; i < GetSegmentCount(); i++ )
 {
 const SEG& s = GetSegment( i );
 SEG::ecoord dist_sq = s.SquaredDistance( aSeg );

 if( dist_sq < closest_dist_sq )
 {
 if( aLocation )
 nearest = s.NearestPoint( aSeg );

 closest_dist_sq = dist_sq;

 if( closest_dist_sq == 0)
 break;

 // If we're not looking for aActual then any collision will do
 if( closest_dist_sq < clearance_sq && !aActual )
 break;
 }
 }

 if( closest_dist_sq == 0 || closest_dist_sq < clearance_sq )
 {
 if( aLocation )
 *aLocation = nearest;

 if( aActual )
 *aActual = sqrt( closest_dist_sq );

 return true;
 }

 return false;
}

References SEG::A, VECTOR2< T >::ECOORD_MAX, GetSegment(), GetSegmentCount(), IsClosed(), SEG::NearestPoint(), PointInside(), SEG::Square(), and SEG::SquaredDistance().

EdgeContainingPoint()

int SHAPE_LINE_CHAIN_BASE::EdgeContainingPoint	(	const VECTOR2I &	aP,
		int	aAccuracy = 0
	)		const

Check if point aP lies on an edge or vertex of the line chain.

Parameters

aP	point to check

Returns

index of the first edge containing the point, otherwise negative

Definition at line 1593 of file shape_line_chain.cpp.

{
 if( !GetPointCount() )
 {
 return -1;
 }
 else if( GetPointCount() == 1 )
 {
 VECTOR2I dist = GetPoint(0) - aPt;
 return ( hypot( dist.x, dist.y ) <= aAccuracy + 1 ) ? 0 : -1;
 }

 for( size_t i = 0; i < GetSegmentCount(); i++ )
 {
 const SEG s = GetSegment( i );

 if( s.A == aPt || s.B == aPt )
 return i;

 if( s.Distance( aPt ) <= aAccuracy + 1 )
 return i;
 }

 return -1;
}

References SEG::A, SEG::B, SEG::Distance(), GetPoint(), GetPointCount(), GetSegment(), GetSegmentCount(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by PointOnEdge().

Format()

const std::string SHAPE::Format ( ) const

virtualinherited

Reimplemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_RECT, SHAPE_SEGMENT, and SHAPE_COMPOUND.

Definition at line 35 of file shape.cpp.

{
 assert( false );
 return std::string( "" );
}

Referenced by SHAPE_FILE_IO::Write().

GetCachedBBox()

virtual BOX2I* SHAPE_LINE_CHAIN_BASE::GetCachedBBox ( ) const

inlinevirtual

Reimplemented in SHAPE_LINE_CHAIN.

Definition at line 312 of file shape.h.

{ return nullptr; }

Referenced by PointInside().

GetIndexableSubshapeCount()

virtual size_t SHAPE_BASE::GetIndexableSubshapeCount ( ) const

inlinevirtualinherited

Reimplemented in SHAPE_POLY_SET, and SHAPE_COMPOUND.

Definition at line 104 of file shape.h.

{ return 0; }

GetIndexableSubshapes()

virtual void SHAPE_BASE::GetIndexableSubshapes ( std::vector< SHAPE * > &  aSubshapes )

inlinevirtualinherited

Reimplemented in SHAPE_POLY_SET, and SHAPE_COMPOUND.

Definition at line 106 of file shape.h.

{ }

Referenced by SHAPE_COMPOUND::AddShape(), and ROUTER_PREVIEW_ITEM::ViewDraw().

GetPoint()

virtual const VECTOR2I SHAPE_LINE_CHAIN_BASE::GetPoint ( int  aIndex ) const

pure virtual

Implemented in SHAPE_LINE_CHAIN, SHAPE_SIMPLE, and SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI.

Referenced by Collide(), EdgeContainingPoint(), and PointInside().

GetPointCount()

virtual size_t SHAPE_LINE_CHAIN_BASE::GetPointCount ( ) const

pure virtual

Implemented in SHAPE_LINE_CHAIN, SHAPE_SIMPLE, and SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI.

Referenced by Collide(), EdgeContainingPoint(), and PointInside().

GetSegment()

virtual const SEG SHAPE_LINE_CHAIN_BASE::GetSegment ( int  aIndex ) const

pure virtual

Implemented in SHAPE_LINE_CHAIN, SHAPE_SIMPLE, and SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI.

Referenced by Collide(), Collide(), ROUTER_PREVIEW_ITEM::drawLineChain(), EdgeContainingPoint(), and SquaredDistance().

GetSegmentCount()

virtual size_t SHAPE_LINE_CHAIN_BASE::GetSegmentCount ( ) const

pure virtual

Implemented in SHAPE_LINE_CHAIN, SHAPE_SIMPLE, and SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI.

Referenced by Collide(), Collide(), ROUTER_PREVIEW_ITEM::drawLineChain(), EdgeContainingPoint(), and SquaredDistance().

HasIndexableSubshapes()

virtual bool SHAPE_BASE::HasIndexableSubshapes ( ) const

inlinevirtualinherited

Reimplemented in SHAPE_POLY_SET, and SHAPE_COMPOUND.

Definition at line 99 of file shape.h.

 {
 return false;
 }

Referenced by SHAPE_COMPOUND::AddShape(), and ROUTER_PREVIEW_ITEM::ViewDraw().

IsClosed()

virtual bool SHAPE_LINE_CHAIN_BASE::IsClosed ( ) const

pure virtual

Implemented in SHAPE_LINE_CHAIN, SHAPE_SIMPLE, and SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI.

Referenced by Collide(), Collide(), ROUTER_PREVIEW_ITEM::drawLineChain(), PointInside(), and SquaredDistance().

IsNull()

bool SHAPE::IsNull ( ) const

inlineinherited

Return true if the shape is a null shape.

Return values

true	if null :-)

Definition at line 150 of file shape.h.

 {
 return m_type == SH_NULL;
 }

References SHAPE_BASE::m_type, and SH_NULL.

IsSolid()

virtual bool SHAPE::IsSolid ( ) const

pure virtualinherited

Implemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_SIMPLE, SHAPE_RECT, SHAPE_ARC, SHAPE_SEGMENT, SHAPE_CIRCLE, SHAPE_COMPOUND, SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI, and SHAPE_NULL.

Move()

virtual void SHAPE::Move ( const VECTOR2I &  aVector )

pure virtualinherited

Implemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_ARC, SHAPE_SIMPLE, SHAPE_SEGMENT, SHAPE_RECT, SHAPE_CIRCLE, SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI, SHAPE_COMPOUND, and SHAPE_NULL.

Referenced by PNS::SOLID::SetPos().

NewFacet()

FACET * SHAPE::NewFacet ( )

inherited

Definition at line 695 of file wrlfacet.cpp.

{
 FACET* fp = new FACET;
 facets.push_back( fp );
 return fp;
}

References SHAPE::facets.

Referenced by WRL1FACESET::TranslateToSG(), WRL2FACESET::TranslateToSG(), and X3DIFACESET::TranslateToSG().

Parse()

bool SHAPE::Parse ( std::stringstream &  aStream )

virtualinherited

Reimplemented in SHAPE_POLY_SET, and SHAPE_LINE_CHAIN.

Definition at line 28 of file shape.cpp.

{
 assert( false );
 return false;
}

PointInside()

bool SHAPE_LINE_CHAIN_BASE::PointInside	(	const VECTOR2I &	aPt,
		int	aAccuracy = 0,
		bool	aUseBBoxCache = false
	)		const

Check if point aP lies inside a polygon (any type) defined by the line chain.

For closed shapes only.

Parameters

aPt	point to check
aUseBBoxCache	gives better performance if the bounding box caches have been generated.

Returns

true if the point is inside the shape (edge is not treated as being inside).

Definition at line 1535 of file shape_line_chain.cpp.

{
 /*
 * Don't check the bounding box unless it's cached. Building it is about the same speed as
 * the rigorous test below and so just slows things down by doing potentially two tests.
 */
 if( aUseBBoxCache && GetCachedBBox() && !GetCachedBBox()->Contains( aPt ) )
 return false;

 if( !IsClosed() || GetPointCount() < 3 )
 return false;

 bool inside = false;

 /*
 * To check for interior points, we draw a line in the positive x direction from
 * the point. If it intersects an even number of segments, the point is outside the
 * line chain (it had to first enter and then exit). Otherwise, it is inside the chain.
 *
 * Note: slope might be denormal here in the case of a horizontal line but we require our
 * y to move from above to below the point (or vice versa)
 *
 * Note: we open-code CPoint() here so that we don't end up calculating the size of the
 * vector number-of-points times. This has a non-trivial impact on zone fill times.
 */
 int pointCount = GetPointCount();

 for( int i = 0; i < pointCount; )
 {
 const auto p1 = GetPoint( i++ );
 const auto p2 = GetPoint( i == pointCount ? 0 : i );
 const auto diff = p2 - p1;

 if( diff.y != 0 )
 {
 const int d = rescale( diff.x, ( aPt.y - p1.y ), diff.y );

 if( ( ( p1.y > aPt.y ) != ( p2.y > aPt.y ) ) && ( aPt.x - p1.x < d ) )
 inside = !inside;
 }
 }

 // If accuracy is <= 1 (nm) then we skip the accuracy test for performance. Otherwise
 // we use "OnEdge(accuracy)" as a proxy for "Inside(accuracy)".
 if( aAccuracy <= 1 )
 return inside;
 else
 return inside || PointOnEdge( aPt, aAccuracy );
}

References GetCachedBBox(), GetPoint(), GetPointCount(), IsClosed(), PointOnEdge(), rescale(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by Collide(), SHAPE_LINE_CHAIN::Collide(), Collide(), POLY_GRID_PARTITION::containsPoint(), SHAPE_POLY_SET::containsSingle(), ZONE::HitTestCutout(), MARKER_BASE::HitTestMarker(), DRC_RTREE::QueryColliding(), SquaredDistance(), and PNS::LINE::Walkaround().

PointOnEdge()

bool SHAPE_LINE_CHAIN_BASE::PointOnEdge	(	const VECTOR2I &	aP,
		int	aAccuracy = 0
	)		const

Check if point aP lies on an edge or vertex of the line chain.

Parameters

aP	point to check

Returns

true if the point lies on the edge.

Definition at line 1587 of file shape_line_chain.cpp.

{
 return EdgeContainingPoint( aPt, aAccuracy ) >= 0;
}

References EdgeContainingPoint().

Referenced by FABMASTER::loadZones(), PointInside(), and PNS::LINE::Walkaround().

Rotate()

virtual void SHAPE::Rotate ( double  aAngle, const VECTOR2I &  aCenter = { 0, 0 }  )

pure virtualinherited

Parameters

aCenter	is the rotation center.
aAngle	rotation angle in radians.

Implemented in SHAPE_POLY_SET, SHAPE_LINE_CHAIN, SHAPE_ARC, SHAPE_SIMPLE, SHAPE_RECT, SHAPE_SEGMENT, SHAPE_CIRCLE, SHAPE_COMPOUND, SHAPE_POLY_SET::TRIANGULATED_POLYGON::TRI, and SHAPE_NULL.

SquaredDistance()

SEG::ecoord SHAPE_LINE_CHAIN_BASE::SquaredDistance	(	const VECTOR2I &	aP,
		bool	aOutlineOnly = false
	)		const

Definition at line 804 of file shape_line_chain.cpp.

{
 ecoord d = VECTOR2I::ECOORD_MAX;

 if( IsClosed() && PointInside( aP ) && !aOutlineOnly )
 return 0;

 for( size_t s = 0; s < GetSegmentCount(); s++ )
 d = std::min( d, GetSegment( s ).SquaredDistance( aP ) );

 return d;
}

References VECTOR2< T >::ECOORD_MAX, GetSegment(), GetSegmentCount(), IsClosed(), PointInside(), and SEG::SquaredDistance().

Referenced by SHAPE_LINE_CHAIN::Distance().

Type()

SHAPE_TYPE SHAPE_BASE::Type ( ) const

inlineinherited

Return the type of the shape.

Return values

the

type

Definition at line 94 of file shape.h.

 {
 return m_type;
 }

References SHAPE_BASE::m_type.

Referenced by PNS::DP_GATEWAYS::BuildFromPrimitivePair(), PNS::buildHullForPrimitiveShape(), Collide(), SHAPE_POLY_SET::Collide(), collideShapes(), collideSingleShapes(), PNS::OPTIMIZER::computeBreakouts(), ROUTER_PREVIEW_ITEM::drawShape(), PNS::SOLID::HoleHull(), PNS::SOLID::Hull(), and SHAPE_FILE_IO::Write().

Member Data Documentation

m_type

SHAPE_TYPE SHAPE_BASE::m_type

protectedinherited

< type of our shape

Definition at line 110 of file shape.h.

Referenced by SHAPE::IsNull(), and SHAPE_BASE::Type().

MIN_PRECISION_IU

const int SHAPE::MIN_PRECISION_IU = 4

staticinherited

This is the minimum precision for all the points in a shape.

Definition at line 122 of file shape.h.

Referenced by BOOST_AUTO_TEST_CASE(), DIRECTION_45::BuildInitialTrace(), CompareLength(), CIRCLE::Contains(), EDIT_TOOL::FilletTracks(), and CIRCLE::IntersectLine().

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

• shape.h
• shape_line_chain.cpp