trigo.h File Reference

#include <cmath>
#include <math/vector2d.h>
#include <geometry/eda_angle.h>

Go to the source code of this file.

Functions
bool	IsPointOnSegment (const VECTOR2I &aSegStart, const VECTOR2I &aSegEnd, const VECTOR2I &aTestPoint)
	Test if aTestPoint is on line defined by aSegStart and aSegEnd.
bool	SegmentIntersectsSegment (const VECTOR2I &a_p1_l1, const VECTOR2I &a_p2_l1, const VECTOR2I &a_p1_l2, const VECTOR2I &a_p2_l2, VECTOR2I *aIntersectionPoint=nullptr)
	Test if two lines intersect.
void	RotatePoint (int *pX, int *pY, const EDA_ANGLE &aAngle)
	Calculate the new point of coord coord pX, pY, for a rotation center 0, 0.
void	RotatePoint (VECTOR2I &point, const EDA_ANGLE &aAngle)
	Rotate a VECTOR2I in place by aAngle.
VECTOR2I	GetRotated (const VECTOR2I &aVector, const EDA_ANGLE &aAngle)
	Return a new VECTOR2I that is the result of rotating aVector by aAngle.
void	RotatePoint (int *pX, int *pY, int cx, int cy, const EDA_ANGLE &aAngle)
	Calculate the new point of coord coord pX, pY, for a rotation center cx, cy.
void	RotatePoint (VECTOR2I &aPoint, const VECTOR2I &aCentre, const EDA_ANGLE &aAngle)
	Rotate a VECTOR2I in place by aAngle about aCentre.
VECTOR2I	GetRotated (const VECTOR2I &aVector, const VECTOR2I &aCentre, const EDA_ANGLE &aAngle)
	Return a new VECTOR2I that is the result of rotating aVector by aAngle.
void	RotatePoint (double *pX, double *pY, const EDA_ANGLE &aAngle)
	Calculate the new coord point point for a rotation center 0, 0.
void	RotatePoint (VECTOR2D &point, const EDA_ANGLE &aAngle)
void	RotatePoint (double *pX, double *pY, double cx, double cy, const EDA_ANGLE &aAngle)
void	RotatePoint (VECTOR2D &point, const VECTOR2D &aCenter, const EDA_ANGLE &aAngle)
const VECTOR2I	CalcArcCenter (const VECTOR2I &aStart, const VECTOR2I &aMid, const VECTOR2I &aEnd)
	Determine the center of an arc or circle given three points on its circumference.
const VECTOR2D	CalcArcCenter (const VECTOR2D &aStart, const VECTOR2D &aMid, const VECTOR2D &aEnd)
const VECTOR2D	CalcArcCenter (const VECTOR2D &aStart, const VECTOR2D &aEnd, const EDA_ANGLE &aAngle)
const VECTOR2I	CalcArcMid (const VECTOR2I &aStart, const VECTOR2I &aEnd, const VECTOR2I &aCenter, bool aMinArcAngle=true)
	Return the middle point of an arc, half-way between aStart and aEnd.
bool	TestSegmentHit (const VECTOR2I &aRefPoint, const VECTOR2I &aStart, const VECTOR2I &aEnd, int aDist)
	Test if aRefPoint is with aDistance on the line defined by aStart and aEnd.
double	DEG2RAD (double deg)
double	RAD2DEG (double rad)
double	RAD2DECIDEG (double rad)
template<class T >
T	NormalizeAnglePos (T Angle)
	Normalize angle to be in the 0.0 .
template<class T >
void	NORMALIZE_ANGLE_POS (T &Angle)
template<class T >
T	NormalizeAngle180 (T Angle)
	Normalize angle to be in the -180.0 .
bool	InterceptsPositiveX (double aStartAngle, double aEndAngle)
	Test if an arc from aStartAngle to aEndAngle crosses the positive X axis (0 degrees).
bool	InterceptsNegativeX (double aStartAngle, double aEndAngle)
	Test if an arc from aStartAngle to aEndAngle crosses the negative X axis (180 degrees).

Function Documentation

CalcArcCenter() [1/3]

const VECTOR2D CalcArcCenter	(	const VECTOR2D &	aStart,
		const VECTOR2D &	aEnd,
		const EDA_ANGLE &	aAngle
	)

Definition at line 333 of file trigo.cpp.

References ANGLE_0, ANGLE_180, ANGLE_360, ANGLE_90, VECTOR2< T >::Resize(), RotatePoint(), and EDA_ANGLE::Sin().

Referenced by CalcArcCenter().

CalcArcCenter() [2/3]

const VECTOR2D CalcArcCenter	(	const VECTOR2D &	aStart,
		const VECTOR2D &	aMid,
		const VECTOR2D &	aEnd
	)

Definition at line 369 of file trigo.cpp.

References std::abs(), CircleCenterFrom3Points(), VECTOR2< T >::EuclideanNorm(), VECTOR2< T >::x, and VECTOR2< T >::y.

CalcArcCenter() [3/3]

const VECTOR2I CalcArcCenter	(	const VECTOR2I &	aStart,
		const VECTOR2I &	aMid,
		const VECTOR2I &	aEnd
	)

Determine the center of an arc or circle given three points on its circumference.

Parameters

aStart	The starting point of the circle (equivalent to aEnd).
aMid	The point on the arc, half-way between aStart and aEnd.
aEnd	The ending point of the circle (equivalent to aStart).

Returns

The center of the circle.

Definition at line 521 of file trigo.cpp.

References CalcArcCenter(), KiROUND(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by GRAPHICS_IMPORTER_LIB_SYMBOL::AddArc(), GRAPHICS_IMPORTER_SCH::AddArc(), PLOTTER::Arc(), BOOST_AUTO_TEST_CASE(), SHAPE_ARC::ConstructFromStartEndAngle(), KIGFX::SCH_PAINTER::draw(), PCB_ARC::GetPosition(), PCB_ARC::GetRadius(), SCH_IO_KICAD_SEXPR_PARSER::parseSymbolArc(), EDA_SHAPE::SetArcGeometry(), SHAPE_ARC::update_values(), and ARC_GEOM_SYNCER::Validate().

CalcArcMid()

const VECTOR2I CalcArcMid	(	const VECTOR2I &	aStart,
		const VECTOR2I &	aEnd,
		const VECTOR2I &	aCenter,
		bool	aMinArcAngle = true
	)

Return the middle point of an arc, half-way between aStart and aEnd.

There are two possible solutions which can be found by toggling aMinArcAngle. The behavior is undefined for semicircles (i.e. 180 degree arcs).

Parameters

aStart	The starting point of the arc (for calculating the radius).
aEnd	The end point of the arc (for determining the arc angle).
aCenter	The center point of the arc.
aMinArcAngle	If true, returns the point that results in the smallest arc angle.

Returns

The middle point of the arc.

Definition at line 209 of file trigo.cpp.

References ANGLE_180, and RotatePoint().

Referenced by CIRCLE::ConstructFromTanTanPt(), EDIT_TOOL::DragArcTrack(), and PCB_IO_EAGLE::loadSignals().

DEG2RAD()

double DEG2RAD ( double  deg )

inline

Definition at line 166 of file trigo.h.

Referenced by DXF_IMPORT_PLUGIN::addInsert(), ConvertArcCenter(), PNS::MEANDER_SHAPE::cornerRadius(), EXPORTER_PCB_VRML::ExportVrmlFootprint(), PCB_TUNING_PATTERN::getOutline(), HelperShapeLineChainFromAltiumVertices(), PCBNEW_JOBS_HANDLER::JobExportRender(), CADSTAR_PCB_ARCHIVE_LOADER::loadDimensions(), PCB_IO_EAGLE::loadPolygon(), PNS::MEANDER_SHAPE::makeMiterShape(), PNS::MEANDER_SHAPE::MinAmplitude(), PCB_IO_EAGLE::packagePolygon(), PCB_IO_EASYEDAPRO_PARSER::ParseBoard(), PCB_IO_EASYEDAPRO_PARSER::ParseContour(), PCB_IO_EASYEDAPRO_PARSER::ParsePoly(), STEP_PCB_MODEL::performMeshing(), DRC_TEST_PROVIDER_SLIVER_CHECKER::Run(), and DRC_TEST_PROVIDER_PHYSICAL_CLEARANCE::testShapeLineChain().

GetRotated() [1/2]

VECTOR2I GetRotated ( const VECTOR2I &  aVector, const EDA_ANGLE &  aAngle  )

inline

Return a new VECTOR2I that is the result of rotating aVector by aAngle.

Definition at line 77 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by BOOST_AUTO_TEST_CASE(), ComputeDogbone(), KIGEOM::ConvertToChain(), DIM_ALIGNED_TEXT_UPDATER::getDimensionNewTextPosition(), KIGEOM::MakeCrossSegments(), KIGEOM::MakeRegularPolygonPoints(), LINE_GEOM_SYNCER::OnPolarChange(), OUTSET_ROUTINE::ProcessItem(), and EDA_TEXT::TextHitTest().

GetRotated() [2/2]

VECTOR2I GetRotated ( const VECTOR2I &  aVector, const VECTOR2I &  aCentre, const EDA_ANGLE &  aAngle  )

inline

Return a new VECTOR2I that is the result of rotating aVector by aAngle.

Definition at line 100 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

InterceptsNegativeX()

bool InterceptsNegativeX ( double  aStartAngle, double  aEndAngle  )

inline

Test if an arc from aStartAngle to aEndAngle crosses the negative X axis (180 degrees).

Testing is performed in the quadrant 1 to quadrant 4 direction (counter-clockwise).

Parameters

aStartAngle	The arc start angle in degrees.
aEndAngle	The arc end angle in degrees.

Definition at line 233 of file trigo.h.

Referenced by BOOST_AUTO_TEST_CASE().

InterceptsPositiveX()

bool InterceptsPositiveX ( double  aStartAngle, double  aEndAngle  )

inline

Test if an arc from aStartAngle to aEndAngle crosses the positive X axis (0 degrees).

Testing is performed in the quadrant 1 to quadrant 4 direction (counter-clockwise).

Parameters

aStartAngle	The arc start angle in degrees.
aEndAngle	The arc end angle in degrees.

Definition at line 215 of file trigo.h.

Referenced by BOOST_AUTO_TEST_CASE().

IsPointOnSegment()

bool IsPointOnSegment	(	const VECTOR2I &	aSegStart,
		const VECTOR2I &	aSegEnd,
		const VECTOR2I &	aTestPoint
	)

Test if aTestPoint is on line defined by aSegStart and aSegEnd.

This function is faster than TestSegmentHit() because aTestPoint should be exactly on the line. This only works for horizontal, vertical, and 45 degree line segments.

Parameters

aSegStart	The first point of the line segment.
aSegEnd	The second point of the line segment.
aTestPoint	The point to test.

Returns

true if the point is on the line segment.

Definition at line 89 of file trigo.cpp.

References VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by SCH_LINE_WIRE_BUS_TOOL::finishSegments(), SCH_SCREEN::GetBusesAndWires(), SCH_SCREEN::GetNeededJunctions(), SCH_LINE_WIRE_BUS_TOOL::TrimOverLappingWires(), SCH_EDIT_FRAME::TrimWire(), SCH_BUS_WIRE_ENTRY::UpdateDanglingState(), and SCH_BUS_BUS_ENTRY::UpdateDanglingState().

NORMALIZE_ANGLE_POS()

template<class T >

void NORMALIZE_ANGLE_POS ( T &  Angle )

inline

Definition at line 187 of file trigo.h.

References NormalizeAnglePos().

Referenced by SCH_IO_KICAD_LEGACY_LIB_CACHE::loadArc(), and MapAnglesV6().

NormalizeAngle180()

template<class T >

T NormalizeAngle180 ( T  Angle )

inline

Normalize angle to be in the -180.0 .

. 180.0 range.

Definition at line 196 of file trigo.h.

Referenced by DIALOG_COPPER_ZONE::AcceptOptions(), and PANEL_ZONE_PROPERTIES::AcceptOptions().

NormalizeAnglePos()

template<class T >

T NormalizeAnglePos ( T  Angle )

inline

Normalize angle to be in the 0.0 .

. 360.0 range: angle is in 1/10 degrees.

Definition at line 178 of file trigo.h.

Referenced by NORMALIZE_ANGLE_POS().

RAD2DECIDEG()

double RAD2DECIDEG ( double  rad )

inline

Definition at line 170 of file trigo.h.

Referenced by MapAnglesV6().

RAD2DEG()

double RAD2DEG ( double  rad )

inline

Definition at line 167 of file trigo.h.

Referenced by GBR_TO_PCB_EXPORTER::export_non_copper_item(), and PCB_BASE_FRAME::UpdateStatusBar().

RotatePoint() [1/8]

void RotatePoint	(	double *	pX,
		double *	pY,
		const EDA_ANGLE &	aAngle
	)

Calculate the new coord point point for a rotation center 0, 0.

Definition at line 295 of file trigo.cpp.

References ANGLE_0, ANGLE_180, ANGLE_270, ANGLE_90, EDA_ANGLE::Cos(), EDA_ANGLE::Normalize(), EDA_ANGLE::Sin(), VECTOR2< T >::x, and VECTOR2< T >::y.

RotatePoint() [2/8]

void RotatePoint	(	double *	pX,
		double *	pY,
		double	cx,
		double	cy,
		const EDA_ANGLE &	aAngle
	)

Definition at line 281 of file trigo.cpp.

References RotatePoint().

RotatePoint() [3/8]

void RotatePoint	(	int *	pX,
		int *	pY,
		const EDA_ANGLE &	aAngle
	)

Calculate the new point of coord coord pX, pY, for a rotation center 0, 0.

Definition at line 229 of file trigo.cpp.

References ANGLE_0, ANGLE_180, ANGLE_270, ANGLE_90, EDA_ANGLE::Cos(), KiROUND(), EDA_ANGLE::Normalize(), EDA_ANGLE::Sin(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DXF_IMPORT_PLUGIN::addArc(), GRAPHICS_IMPORTER_LIB_SYMBOL::AddArc(), GRAPHICS_IMPORTER_SCH::AddArc(), GRAPHICS_IMPORTER_PCBNEW::AddArc(), PCAD2KICAD::PCAD_FOOTPRINT::AddToBoard(), PCAD2KICAD::PCAD_PAD::AddToFootprint(), EC_CIRCLE::Apply(), CADSTAR_SCH_ARCHIVE_LOADER::applyTransform(), SVG_PLOTTER::Arc(), BOOST_AUTO_TEST_CASE(), PCB_TEXT::buildBoundingHull(), BuildConvexHull(), BuildCornersList_S_Shape(), PAD::buildEffectiveShape(), PAD::BuildEffectiveShapes(), DIRECTION_45::BuildInitialTrace(), ZONE_FILLER::buildThermalSpokes(), CalcArcCenter(), CalcArcMid(), PNS::OPTIMIZER::circleBreakouts(), SHAPE_ARC::Collide(), commonParallelProjection(), PCB_GRID_HELPER::computeAnchors(), computeCenter(), PSLIKE_PLOTTER::computeTextParameters(), ConnectBoardShapes(), SHAPE_ARC::ConstructFromStartEndAngle(), SHAPE_ARC::ConstructFromStartEndCenter(), AM_PRIMITIVE::ConvertBasicShapeToPolygon(), ALTIUM_PCB::ConvertComponentBody6ToFootprintItem(), convertOblong2Segment(), AM_PRIMITIVE::ConvertShapeToPolygon(), D_CODE::ConvertShapeToPolygon(), CornerListToPolygon(), PCAD2KICAD::CorrectTextPosition(), BOARD_ADAPTER::createArcSegments(), EXCELLON_WRITER::createDrillFile(), MICROWAVE_TOOL::createFootprint(), SCH_GLOBALLABEL::CreateGraphicShape(), SCH_DIRECTIVE_LABEL::CreateGraphicShape(), PNS::OPTIMIZER::customBreakouts(), KIGFX::PCB_PAINTER::draw(), KIGFX::SCH_PAINTER::draw(), PCB_DIMENSION_BASE::drawAnArrow(), KIGFX::CAIRO_GAL_BASE::DrawArc(), KIGFX::CAIRO_GAL_BASE::DrawArcSegment(), drawBacksideTicks(), CADSTAR_PCB_ARCHIVE_LOADER::drawCadstarText(), DrawHalfOpenCylinder(), AR_MATRIX::drawSegmentQcq(), drawTicksAlongLine(), GBR_TO_PCB_EXPORTER::export_segarc_copper_item(), EXPORTER_PCB_VRML::ExportVrmlFootprint(), fillArcPOLY(), CADSTAR_ARCHIVE_PARSER::FixTextPositionNoAlignment(), GERBER_PLOTTER::FlashPadChamferRoundRect(), GERBER_PLOTTER::FlashPadCustom(), HPGL_PLOTTER::FlashPadOval(), PSLIKE_PLOTTER::FlashPadOval(), HPGL_PLOTTER::FlashPadRect(), PSLIKE_PLOTTER::FlashPadRect(), DXF_PLOTTER::FlashPadRect(), DXF_PLOTTER::FlashPadTrapez(), GERBER_PLOTTER::FlashPadTrapez(), HPGL_PLOTTER::FlashPadTrapez(), PSLIKE_PLOTTER::FlashPadTrapez(), GERBER_PLOTTER::FlashRegularPolygon(), GENCAD_EXPORTER::FootprintWriteShape(), PCB_IO_KICAD_SEXPR::format(), formatInternalUnits(), GERBER_DRAW_ITEM::GetABPosition(), EDA_SHAPE::GetArcMid(), SCH_LABEL::GetBodyBoundingBox(), SCH_FIELD::GetBoundingBox(), SCH_TEXT::GetBoundingBox(), BOX2< Vec >::GetBoundingBoxRotated(), DS_DATA_ITEM_POLYGONS::GetCornerPosition(), PCB_TEXTBOX::GetDrawPos(), KIGFX::PREVIEW::ARC_GEOM_MANAGER::GetEndRadiusEnd(), BOARD_ITEM::GetFPRelativePosition(), CADSTAR_PCB_ARCHIVE_LOADER::getKiCadPad(), EDA_TEXT::GetLinePositions(), CADSTAR_SCH_ARCHIVE_LOADER::getLocationOfNetElement(), KIGEOM::GetOvalKeyPoints(), getRectangleAlongCentreLine(), GetRotated(), KIGFX::PREVIEW::ARC_GEOM_MANAGER::GetStartRadiusEnd(), KIFONT::OUTLINE_FONT::getTextAsGlyphsUnlocked(), ARRAY_CIRCULAR_OPTIONS::GetTransform(), GERBER_DRAW_ITEM::GetXYPosition(), GRCSegm(), hash_fp_item(), ALTIUM_PCB::HelperParseDimensions6Center(), ALTIUM_PCB::HelperParseDimensions6Leader(), ALTIUM_PCB::HelperSetTextAlignmentAndPos(), ALTIUM_PCB::HelperSetTextboxAlignmentAndPos(), idf_export_footprint(), RENDER_3D_RAYTRACE_BASE::insertHole(), CIRCLE::Intersect(), BOX2< Vec >::Intersects(), SCH_IO_KICAD_LEGACY_LIB_CACHE::loadArc(), PCB_IO_EAGLE::loadPlain(), SCH_IO_EAGLE::loadRectangle(), CADSTAR_SCH_ARCHIVE_LOADER::loadSchematicSymbolInstances(), SCH_IO_EAGLE::loadSymbolRectangle(), CADSTAR_SCH_ARCHIVE_LOADER::loadSymdef(), STEP_PCB_MODEL::MakeShapeAsThickSegment(), DSN::mapPt(), FOOTPRINT::MoveAnchorPosition(), SCH_TABLE::Normalize(), PCB_TABLE::Normalize(), OVAL::OVAL(), PCB_IO_EAGLE::packageCircle(), ALTIUM_PCB::ParseComponentsBodies6Data(), PCB_IO_EASYEDAPRO_PARSER::ParseContour(), GPCB_FPL_CACHE::parseFOOTPRINT(), PCB_IO_EASYEDA_PARSER::ParseToBoardItemContainer(), SCH_TEXT::Plot(), BRDITEMS_PLOTTER::PlotPadNumber(), GERBER_PLOTTER::plotRoundRectAsRegion(), BRDITEMS_PLOTTER::PlotText(), SCH_TEXT::Print(), FABMASTER::processArc(), SHAPE_ARC::Rotate(), SHAPE_LINE_CHAIN::Rotate(), SCH_EDIT_TOOL::Rotate(), EDIT_TOOL::Rotate(), SCH_BUS_ENTRY_BASE::Rotate(), SCH_FIELD::Rotate(), SCH_JUNCTION::Rotate(), SCH_LABEL_BASE::Rotate(), SCH_LINE::Rotate(), SCH_NO_CONNECT::Rotate(), SCH_SHEET::Rotate(), SCH_SHEET_PIN::Rotate(), SCH_SYMBOL::Rotate(), SCH_TEXT::Rotate(), REFERENCE_IMAGE::Rotate(), EDA_SHAPE::rotate(), FOOTPRINT::Rotate(), PCB_TUNING_PATTERN::Rotate(), PAD::Rotate(), PCB_DIMENSION_BASE::Rotate(), PCB_GENERATOR::Rotate(), PCB_TARGET::Rotate(), PCB_TEXT::Rotate(), PCB_TRACK::Rotate(), PCB_ARC::Rotate(), SCH_PIN::RotatePin(), RotatePoint(), EDA_SHAPE::SetArcAngleAndEnd(), DS_DATA_ITEM_POLYGONS::SetBoundingBox(), BOARD_ITEM::SetFPRelativePosition(), SHAPE_ARC::SHAPE_ARC(), PAD::ShapePos(), PLOTTER::sketchOval(), KIGFX::PCB_PAINTER::strokeText(), PNS_KICAD_IFACE_BASE::syncPad(), DRC_TEST_PROVIDER_PHYSICAL_CLEARANCE::testShapeLineChain(), PDF_PLOTTER::Text(), AR_MATRIX::TraceFilledRectangle(), DIALOG_PAD_PROPERTIES::transferDataToPad(), PCB_IO_EAGLE::transferPad(), KIFONT::STROKE_GLYPH::Transform(), PIN_LAYOUT_CACHE::transformBoxForPin(), TransformCircleToPolygon(), TransformEllipseToBeziers(), TransformOvalToPolygon(), PAD::TransformShapeToPolygon(), EASYEDA_PARSER_BASE::TransformTextToBaseline(), PNS::MEANDER_SHAPE::turn(), PCB_DIM_RADIAL::updateGeometry(), PCB_DIM_CENTER::updateGeometry(), PAD_POINT_EDIT_BEHAVIOR::UpdateItem(), PCB_DIM_ALIGNED::updateText(), KIGFX::PREVIEW::RULER_ITEM::ViewDraw(), and GERBER_PLOTTER::writeApertureList().

RotatePoint() [4/8]

void RotatePoint	(	int *	pX,
		int *	pY,
		int	cx,
		int	cy,
		const EDA_ANGLE &	aAngle
	)

Calculate the new point of coord coord pX, pY, for a rotation center cx, cy.

Definition at line 267 of file trigo.cpp.

References RotatePoint().

RotatePoint() [5/8]

void RotatePoint ( VECTOR2D &  point, const EDA_ANGLE &  aAngle  )

inline

Definition at line 114 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

RotatePoint() [6/8]

void RotatePoint ( VECTOR2D &  point, const VECTOR2D &  aCenter, const EDA_ANGLE &  aAngle  )

inline

Definition at line 121 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

RotatePoint() [7/8]

void RotatePoint ( VECTOR2I &  aPoint, const VECTOR2I &  aCentre, const EDA_ANGLE &  aAngle  )

inline

Rotate a VECTOR2I in place by aAngle about aCentre.

Definition at line 92 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

RotatePoint() [8/8]

void RotatePoint ( VECTOR2I &  point, const EDA_ANGLE &  aAngle  )

inline

Rotate a VECTOR2I in place by aAngle.

Definition at line 69 of file trigo.h.

References RotatePoint(), VECTOR2< T >::x, and VECTOR2< T >::y.

SegmentIntersectsSegment()

bool SegmentIntersectsSegment	(	const VECTOR2I &	a_p1_l1,
		const VECTOR2I &	a_p2_l1,
		const VECTOR2I &	a_p1_l2,
		const VECTOR2I &	a_p2_l2,
		VECTOR2I *	aIntersectionPoint = nullptr
	)

Test if two lines intersect.

Parameters

a_p1_l1	The first point of the first line.
a_p2_l1	The second point of the first line.
a_p1_l2	The first point of the second line.
a_p2_l2	The second point of the second line.
aIntersectionPoint	is filled with the intersection point if it exists

Returns

bool true if the two segments defined by four points intersect. (i.e. if the 2 segments have at least a common point)

Definition at line 107 of file trigo.cpp.

References KiROUND(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by BOX2< Vec >::Intersects().

TestSegmentHit()

bool TestSegmentHit	(	const VECTOR2I &	aRefPoint,
		const VECTOR2I &	aStart,
		const VECTOR2I &	aEnd,
		int	aDist
	)

Test if aRefPoint is with aDistance on the line defined by aStart and aEnd.

Parameters

aRefPoint	= reference point to test
aStart	is the first end-point of the line segment
aEnd	is the second end-point of the line segment
aDist	= maximum distance for hit

Definition at line 175 of file trigo.cpp.

References std::abs(), delta, SEG::Square(), SEG::SquaredDistance(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by SCH_IO_EAGLE::addBusEntries(), EE_GRID_HELPER::computeAnchors(), DRAWING_TOOL::DrawVia(), EDA_SHAPE::hitTest(), SCH_BUS_ENTRY_BASE::HitTest(), SCH_LINE::HitTest(), DS_DRAW_ITEM_LINE::HitTest(), DS_DRAW_ITEM_RECT::HitTest(), PCB_TRACK::HitTest(), GERBER_DRAW_ITEM::HitTest(), SCH_IO_EAGLE::moveLabels(), SHAPE_LINE_CHAIN::Simplify(), and SCH_LABEL_BASE::UpdateDanglingState().