LineData Class Reference

A line shape, with two endpoints, a length, orientation, etc. More...

#include <LineData.h>

Inheritance diagram for LineData:

[legend]

Detailed Description

A line shape, with two endpoints, a length, orientation, etc.

Definition at line 20 of file LineData.h.

List of all members.

Classes
class	ColinearTest
	True if line orientations are within ang_tol (default 20 deg) and normpoints are within dist_tol (default 10 units). More...
class	IsHorizontal
	Predicate returns true if line orientation is within threshold of horizontal. More...
class	IsVertical
	Predicate returns true if line orientation is within threshold of vertical. More...
class	LengthLessThan
	True if line1 shorter than line2. More...
class	LineDataLengthLessThan
class	ParallelTest
	True if difference in line orientations is <= tolerance (default 20 deg). More...
class	PerpendicularTest
	True if difference in line orientations is 90 deg +/- tolerance (default 20 deg). More...
Public Member Functions
	LineData (ShapeSpace &_space, const EndPoint &p1, const EndPoint &p2)
	Constructor.
	LineData (ShapeSpace &_space, const Point &pt, orientation_t orient)
	Constructor.
	LineData (ShapeSpace &_space)
	Constructor.
	LineData (const LineData &other)
	Copy constructor.
	DATASTUFF_H (LineData)
void	update_derived_properties ()
	Updates norm parameters (rho and theta).
virtual Point	getCentroid () const
	Centroid. (Virtual in BaseData.).
void	setInfinite (bool value=true)
	Makes endpoints inactive if value = true.
BoundingBox2D	getBoundingBox () const
virtual bool	isMatchFor (const ShapeRoot &other) const
	Match lines based on their parameters. (Virtual in BaseData.).
bool	isMatchFor (const LineData &other) const
virtual bool	isAdmissible () const
	Lines are admissible to the local map if they're long enough to not be noise.
virtual bool	updateParams (const ShapeRoot &other, bool force=false)
	Update a line in the local map with info from a matching line in the ground space.
bool	updateParams (const LineData &other, bool force=false)
	Update a line in the local map with info from a matching line in the ground space.
virtual void	mergeWith (const ShapeRoot &other)
LineData &	operator= (const LineData &)
bool	isValidUpdate (coordinate_t p1, coordinate_t p2, coordinate_t p3, coordinate_t p4)
virtual void	printParams () const
	Print information about this shape. (Virtual in BaseData.).
virtual void	applyTransform (const fmat::Transform &Tmat, const ReferenceFrameType_t newref=unspecified)
	Transformations. (Virtual in BaseData.).
virtual void	projectToGround (const fmat::Transform &camToBase, const PlaneEquation &groundplane)
	Project to ground.
virtual unsigned short	getDimension () const
void	printEnds () const
void	setEndPts (const EndPoint &_end1_pt, const EndPoint &_end2_pt)
bool	isBetween (const Point &p, const LineData &other) const
	Check if point falls between the two lines.
bool	pointsOnSameSide (const Point &p1, const Point &p2)
bool	pointOnLine (const Point &p)
float	perpendicularDistanceFrom (const Point &other) const
	Distance.
virtual Sketch< bool > &	getRendering ()
	Update properties of the shape derived from endpoints or other basic parameters.
void	renderOnTo (Sketch< bool > *draw_result) const
Point access functions.

EndPoint &	end1Pt ()
EndPoint &	end2Pt ()
const EndPoint &	end1Pt () const
const EndPoint &	end2Pt () const
EndPoint &	leftPt ()
const EndPoint &	leftPt () const
EndPoint &	rightPt ()
const EndPoint &	rightPt () const
EndPoint &	topPt ()
const EndPoint &	topPt () const
EndPoint &	bottomPt ()
const EndPoint &	bottomPt () const
Shape< PointData >	leftPtShape ()
Shape< PointData >	rightPtShape ()
Shape< PointData >	topPtShape ()
Shape< PointData >	bottomPtShape ()
EndPoint &	firstPt ()
const EndPoint &	firstPt () const
const EndPoint &	firstPt (const LineData &otherline) const
EndPoint &	secondPt ()
const EndPoint &	secondPt () const
const EndPoint &	secondPt (const LineData &otherline) const
Shape< PointData >	firstPtShape ()
Shape< PointData >	secondPtShape ()
coordinate_t	firstPtCoord () const
coordinate_t	firstPtCoord (const LineData &otherline) const
coordinate_t	secondPtCoord () const
coordinate_t	secondPtCoord (const LineData &otherline) const
Properties functions

float	getRhoNorm () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
AngTwoPi	getThetaNorm () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
AngPi	getOrientation () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
float	getLength () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
std::pair< float, float >	lineEquation_mb () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
std::vector< float >	lineEquation_abc () const
	Determine parameters a, b, c satisfying the equation ax + by = c.
std::vector< float >	lineEquation_abc_xz () const
	Determine parameters a, b, c, d satisfying the equation ax + bz = c.
Orientation functions

bool	isNotVertical () const
	True if line orientation is far enough from vertical.
bool	isOverlappedWith (const LineData &otherline, int amount=0) const
	True if line orientation is far enough from vertical.
Left/Right predicates

bool	pointIsLeftOf (const Point &pt) const
	Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.
bool	pointIsRightOf (const Point &pt) const
	Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.
bool	pointIsAbove (const Point &pt) const
	Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.
bool	pointIsBelow (const Point &pt) const
	Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.
Predicates based on line length

bool	isLongerThan (const Shape< LineData > &other) const
bool	isLongerThan (float ref_length) const
bool	isShorterThan (const Shape< LineData > &other) const
bool	isShorterThan (float ref_length) const
Check line intersection

bool	intersectsLine (const Shape< LineData > &other) const
bool	intersectsLine (const LineData &other) const
Point	intersectionWithLine (const Shape< LineData > &other) const
Point	intersectionWithLine (const Shape< LineData > &other, bool &intersection_on_this, bool &intersection_on_other) const
Point	intersectionWithLine (const LineData &other) const
Point	intersectionWithLine (const LineData &other, bool &intersection_on_this, bool &intersection_on_other) const
Static Public Member Functions
static ShapeType_t	getStaticType ()
static void	updateLinePt (EndPoint &localPt, coordinate_t local_coord, const EndPoint &groundPt, coordinate_t ground_coord, int sign)
Static Public Attributes
static const int	TSIZE = 180
	number of theta entries in Hough table
static const int	RSIZE = 3000
	number of distance entries in Hough table; was 1600
static const float	DEFAULT_MIN_LENGTH = 0.025f
	Min line length as a fraction of sketch width.
Private Attributes
EndPoint	end1_pt
EndPoint	end2_pt
float	rho_norm
AngTwoPi	theta_norm
AngPi	orientation
float	length
Static Private Attributes
static const Point	origin_pt = Point(0,0)
static const int	extractorGapTolerance = 15
Friends
class	Shape< LineData >
class	PolygonData
class	BlobData

static int const	beg_dist_thresh = 2
	skel has to be this close to start a segment
static int const	end_dist_thresh = 2
	how far line can extend past skel before giving up
static int const	line_min_length = 15
	minimum x or y length in pixels
void	clearLine (Sketch< bool > &sketch)
	Clears a line from a sketch.
int	scanHorizForEndPts (const Sketch< uint > &skelDist, const Sketch< bool > &occlusions, float m, float b, int xstart)
	skel has to be this close to start a segment
int	scanVertForEndPts (const Sketch< uint > &skelDist, const Sketch< bool > &occlusions, float m, float b, int ystart)
	skel has to be this close to start a segment
static Shape< LineData >	splitLine (ShapeSpace &ShS, Region &skelchunk, Sketch< bool > &skeleton, const Sketch< bool > &occlusions)
	Extracts most prominent line from a skeletonized image.
static bool	pointsOnPerimeterOfWindow (Sketch< bool > const &sketch, double t, double r, Point &pt1, Point &pt2)
	skel has to be this close to start a segment
static double	getScore (int t, int r, int height, short hough[TSIZE][RSIZE], float ptsArray[TSIZE][RSIZE])
	skel has to be this close to start a segment
static std::vector< Shape < LineData > >	houghExtractLines (Sketch< bool > const &sketch, Sketch< bool > const &occluders, const int num_lines)
	skel has to be this close to start a segment
static Shape< LineData >	extractLine (Sketch< bool > &sketch)
	skel has to be this close to start a segment
static Shape< LineData >	extractLine (Sketch< bool > &skelsketch, const Sketch< bool > &occlusions)
	skel has to be this close to start a segment
static std::vector< Shape < LineData > >	extractLines (Sketch< bool > const &sketch, int const num_lines=20)
	skel has to be this close to start a segment
static std::vector< Shape < LineData > >	extractLines (Sketch< bool > const &skel, Sketch< bool > const &occluders, int const num_lines=20)
	skel has to be this close to start a segment
static std::vector< Shape < LineData > >	houghTransform (const Sketch< bool > &fat, const Sketch< bool > &skinny, const Sketch< bool > &occlusions, const size_t num_lines, int minLength=-1)
static bool	linesParallel (Shape< LineData > line1, Shape< LineData > line2)
	skel has to be this close to start a segment
Rendering.

Sketch< bool > *	render () const
	Render into a sketch space and return reference.
void	setDrawCoords (float &x1, float &y1, float &x2, float &y2, const int width, const int height) const
static void	drawline2d (Sketch< bool > &canvas, int x0, int y0, int x1, int y1)
	Render into a sketch space and return reference.

Constructor & Destructor Documentation

LineData	(	ShapeSpace &	_space,
		const EndPoint &	p1,
		const EndPoint &	p2
	)

Constructor.

Definition at line 43 of file LineData.h.

LineData	(	ShapeSpace &	_space,
		const Point &	pt,
		orientation_t	orient
	)

Constructor.

Definition at line 38 of file LineData.cc.

LineData ( ShapeSpace & _space )

Constructor.

Definition at line 52 of file LineData.h.

LineData ( const LineData & other )

Copy constructor.

Definition at line 72 of file LineData.cc.

Member Function Documentation

void applyTransform	(	const fmat::Transform &	Tmat,
		const ReferenceFrameType_t	newref = `unspecified`
	)			`[virtual]`

Transformations. (Virtual in BaseData.).

Apply a transformation to this shape.

Implements BaseData.

Definition at line 267 of file LineData.cc.

Referenced by TargetData::applyTransform().

const EndPoint & bottomPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 289 of file LineData.cc.

EndPoint & bottomPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 288 of file LineData.cc.

Referenced by LineData::bottomPtShape(), and LineData::pointOnLine().

Shape< PointData > bottomPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 315 of file LineData.cc.

void clearLine ( Sketch< bool > & sketch )

Clears a line from a sketch.

Clear out pixels that are on or close to this line.

Definition at line 1439 of file LineData.cc.

DATASTUFF_H ( LineData )

void drawline2d	(	Sketch< bool > &	canvas,
		int	x0,
		int	y0,
		int	x1,
		int	y1
	)			`[static, private]`

Render into a sketch space and return reference.

Render line to SketchSpace and return a pointer to the sketch. This function does not link the Sketch<bool>* in the shape to the sketch returned.

Definition at line 1595 of file LineData.cc.

Referenced by BlobData::render(), and LineData::renderOnTo().

const EndPoint& end1Pt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 122 of file LineData.h.

EndPoint& end1Pt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 120 of file LineData.h.

Referenced by LineData::applyTransform(), LineData::bottomPt(), LineData::firstPt(), PolygonData::formsNewEndline(), TargetData::getBackLeftPt(), LineData::getCentroid(), TargetData::getFrontLeftPt(), LineData::getRendering(), LineData::intersectionWithLine(), LineData::intersectsLine(), LineData::isAdmissible(), LineData::isBetween(), LineData::leftPt(), LineData::lineEquation_abc(), LineData::lineEquation_abc_xz(), LineData::lineEquation_mb(), LineData::printEnds(), LineData::printParams(), LineData::projectToGround(), LineData::renderOnTo(), LineData::rightPt(), LineData::secondPt(), LineData::setDrawCoords(), LineData::topPt(), PolygonData::tryImportNewEndline(), and LineData::update_derived_properties().

const EndPoint& end2Pt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 123 of file LineData.h.

EndPoint& end2Pt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 121 of file LineData.h.

Referenced by LineData::applyTransform(), LineData::bottomPt(), LineData::firstPt(), PolygonData::formsNewEndline(), TargetData::getBackRightPt(), LineData::getCentroid(), TargetData::getFrontRightPt(), LineData::getRendering(), LineData::intersectionWithLine(), LineData::intersectsLine(), LineData::isAdmissible(), LineData::leftPt(), LineData::lineEquation_abc(), LineData::lineEquation_abc_xz(), LineData::lineEquation_mb(), LineData::printEnds(), LineData::printParams(), LineData::projectToGround(), LineData::renderOnTo(), LineData::rightPt(), LineData::secondPt(), LineData::setDrawCoords(), LineData::topPt(), PolygonData::tryImportNewEndline(), and LineData::update_derived_properties().

Shape< LineData > extractLine	(	Sketch< bool > &	skelsketch,
		const Sketch< bool > &	occlusions
	)			`[static]`

skel has to be this close to start a segment

Definition at line 1068 of file LineData.cc.

Shape< LineData > extractLine ( Sketch< bool > & sketch ) [static]

skel has to be this close to start a segment

Definition at line 1060 of file LineData.cc.

Referenced by BrickData::extractBrick(), TargetData::extractLineTarget(), PyramidData::extractPyramid(), and LineData::splitLine().

vector< Shape< LineData > > extractLines	(	Sketch< bool > const &	skel,
		Sketch< bool > const &	occluders,
		int const	num_lines = `20`
	)			`[static]`

skel has to be this close to start a segment

Definition at line 1084 of file LineData.cc.

vector< Shape< LineData > > extractLines	(	Sketch< bool > const &	sketch,
		int const	num_lines = `20`
	)			`[static]`

skel has to be this close to start a segment

Definition at line 1076 of file LineData.cc.

Referenced by PolygonData::extractPolygonEdges().

const EndPoint & firstPt ( const LineData & otherline ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 345 of file LineData.cc.

const EndPoint & firstPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 334 of file LineData.cc.

EndPoint & firstPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 323 of file LineData.cc.

Referenced by LineData::firstPtCoord(), LineData::firstPtShape(), and LineData::updateParams().

coordinate_t firstPtCoord ( const LineData & otherline ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 409 of file LineData.cc.

coordinate_t firstPtCoord ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 405 of file LineData.cc.

Referenced by LineData::updateParams().

Shape< PointData > firstPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 389 of file LineData.cc.

BoundingBox2D getBoundingBox ( ) const [virtual]

Reimplemented from BaseData.

Definition at line 74 of file LineData.h.

Referenced by TargetData::getBoundingBox().

Point getCentroid ( ) const [virtual]

Centroid. (Virtual in BaseData.).

Implements BaseData.

Definition at line 78 of file LineData.cc.

Referenced by TargetData::getBackCentroid(), TargetData::getCentroid(), TargetData::getFrontCentroid(), LineData::isMatchFor(), and TargetData::update_derived_properties().

virtual unsigned short getDimension ( ) const [virtual]

Implements BaseData.

Definition at line 109 of file LineData.h.

float getLength ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 160 of file LineData.h.

Referenced by CrossData::getArmSemiLength(), PolygonData::isFirstLineLonger(), LineDataLengthLessThan::operator()(), LineData::printParams(), and TargetData::update_derived_properties().

AngPi getOrientation ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 159 of file LineData.h.

Referenced by LineData::intersectionWithLine(), PolygonData::intersectsLine(), LineData::isBetween(), PolygonData::isInside(), LineData::isNotVertical(), and LineData::printParams().

Sketch< bool > & getRendering ( ) [virtual]

Update properties of the shape derived from endpoints or other basic parameters.

Rendering. Returns a pointer to the rendering associated with the ShapeRoot object. If no such rendering exists, it is created.

Reimplemented from BaseData.

Definition at line 1452 of file LineData.cc.

Referenced by LineData::clearLine(), PyramidData::render(), and BrickData::render().

float getRhoNorm ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 157 of file LineData.h.

double getScore	(	int	t,
		int	r,
		int	height,
		short	hough[TSIZE][RSIZE],
		float	ptsArray[TSIZE][RSIZE]
	)			`[static]`

skel has to be this close to start a segment

Definition at line 910 of file LineData.cc.

Referenced by LineData::houghExtractLines().

static ShapeType_t getStaticType ( ) [static]

Definition at line 61 of file LineData.h.

AngTwoPi getThetaNorm ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 158 of file LineData.h.

vector< Shape< LineData > > houghExtractLines	(	Sketch< bool > const &	sketch,
		Sketch< bool > const &	occluders,
		const int	num_lines
	)			`[static]`

skel has to be this close to start a segment

Definition at line 925 of file LineData.cc.

Referenced by LineData::extractLine(), and LineData::extractLines().

std::vector< Shape< LineData > > houghTransform	(	const Sketch< bool > &	fat,
		const Sketch< bool > &	skinny,
		const Sketch< bool > &	occlusions,
		const size_t	num_lines,
		int	minLength = `-1`
	)			`[static]`

Check to see if any endpoints are near any edge of the screen. If they are, invalidate them, assuming that line continues beyond screen.

Definition at line 1649 of file LineData.cc.

Point intersectionWithLine	(	const LineData &	other,
		bool &	intersection_on_this,
		bool &	intersection_on_other
	)			const

Definition at line 754 of file LineData.cc.

Point intersectionWithLine ( const LineData & other ) const

Definition at line 203 of file LineData.h.

Referenced by LineData::intersectionWithLine().

Point intersectionWithLine	(	const Shape< LineData > &	other,
		bool &	intersection_on_this,
		bool &	intersection_on_other
	)			const

Definition at line 747 of file LineData.cc.

Point intersectionWithLine ( const Shape< LineData > & other ) const

Definition at line 198 of file LineData.h.

Referenced by BlobData::findCorners(), LineData::intersectionWithLine(), and LineData::isBetween().

bool intersectsLine ( const LineData & other ) const

Definition at line 681 of file LineData.cc.

bool intersectsLine ( const Shape< LineData > & other ) const

Definition at line 676 of file LineData.cc.

Referenced by PolygonData::intersectsLine(), and PolygonData::isInside().

bool isAdmissible ( ) const [virtual]

Lines are admissible to the local map if they're long enough to not be noise.

Reimplemented from BaseData.

Definition at line 222 of file LineData.cc.

bool isBetween	(	const Point &	p,
		const LineData &	other
	)			const

Check if point falls between the two lines.

Definition at line 651 of file LineData.cc.

bool isLongerThan ( float ref_length ) const

Definition at line 642 of file LineData.cc.

bool isLongerThan ( const Shape< LineData > & other ) const

Definition at line 639 of file LineData.cc.

bool isMatchFor ( const LineData & other ) const

Definition at line 100 of file LineData.cc.

bool isMatchFor ( const ShapeRoot & other ) const [virtual]

Match lines based on their parameters. (Virtual in BaseData.).

Implements BaseData.

Definition at line 91 of file LineData.cc.

Referenced by PolygonData::isClosed(), TargetData::isMatchFor(), and PolygonData::tryClosePolygon().

bool isNotVertical ( ) const

True if line orientation is far enough from vertical.

Definition at line 550 of file LineData.cc.

Referenced by LineData::firstPt(), LineData::firstPtCoord(), LineData::secondPt(), and LineData::secondPtCoord().

bool isOverlappedWith	(	const LineData &	otherline,
		int	amount = `0`
	)			const

True if line orientation is far enough from vertical.

Definition at line 129 of file LineData.cc.

Referenced by LineData::isMatchFor().

bool isShorterThan ( float ref_length ) const

Definition at line 648 of file LineData.cc.

bool isShorterThan ( const Shape< LineData > & other ) const

Definition at line 645 of file LineData.cc.

bool isValidUpdate	(	coordinate_t	p1,
		coordinate_t	p2,
		coordinate_t	p3,
		coordinate_t	p4
	)

Definition at line 163 of file LineData.cc.

Referenced by LineData::updateParams().

const EndPoint & leftPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 283 of file LineData.cc.

EndPoint & leftPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 282 of file LineData.cc.

Referenced by LineData::leftPtShape(), and LineData::pointOnLine().

Shape< PointData > leftPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 291 of file LineData.cc.

std::vector< float > lineEquation_abc ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 496 of file LineData.cc.

Referenced by LineData::perpendicularDistanceFrom(), LineData::printParams(), SphereData::projectToGround(), and LineData::update_derived_properties().

std::vector< float > lineEquation_abc_xz ( ) const

Determine parameters a, b, c, d satisfying the equation ax + bz = c.

Definition at line 458 of file LineData.cc.

Referenced by SphereData::projectToGround().

std::pair< float, float > lineEquation_mb ( ) const

Determine parameters a, b, c satisfying the equation ax + by = c.

Definition at line 445 of file LineData.cc.

Referenced by LineData::intersectsLine().

bool linesParallel	(	Shape< LineData >	line1,
		Shape< LineData >	line2
	)			`[static]`

skel has to be this close to start a segment

Definition at line 1832 of file LineData.cc.

void mergeWith ( const ShapeRoot & other ) [virtual]

Definition at line 146 of file LineData.cc.

Referenced by TargetData::mergeWith().

LineData & operator= ( const LineData & other )

Definition at line 1846 of file LineData.cc.

float perpendicularDistanceFrom ( const Point & other ) const

Distance.

Definition at line 828 of file LineData.cc.

Referenced by LineData::isBetween(), LineData::isMatchFor(), Region::mostDistantPtFrom(), TargetData::perpendicularDistanceFrom(), TargetData::update_derived_properties(), and LineData::update_derived_properties().

bool pointIsAbove ( const Point & pt ) const

Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.

Definition at line 611 of file LineData.cc.

bool pointIsBelow ( const Point & pt ) const

Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.

Definition at line 624 of file LineData.cc.

bool pointIsLeftOf ( const Point & pt ) const

Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.

Definition at line 585 of file LineData.cc.

bool pointIsRightOf ( const Point & pt ) const

Defined on Point, but will also work on PointData or Shape<PointData> due to type coercion.

Definition at line 598 of file LineData.cc.

bool pointOnLine ( const Point & p )

Definition at line 1874 of file LineData.cc.

bool pointsOnPerimeterOfWindow	(	Sketch< bool > const &	sketch,
		double	t,
		double	r,
		Point &	pt1,
		Point &	pt2
	)			`[static]`

skel has to be this close to start a segment

Definition at line 861 of file LineData.cc.

Referenced by LineData::houghExtractLines().

bool pointsOnSameSide	(	const Point &	p1,
		const Point &	p2
	)

Definition at line 1861 of file LineData.cc.

void printEnds ( ) const

Definition at line 254 of file LineData.cc.

void printParams ( ) const [virtual]

Print information about this shape. (Virtual in BaseData.).

Implements BaseData.

Definition at line 230 of file LineData.cc.

void projectToGround	(	const fmat::Transform &	camToBase,
		const PlaneEquation &	groundplane
	)			`[virtual]`

Project to ground.

Implements BaseData.

Definition at line 273 of file LineData.cc.

Referenced by TargetData::projectToGround().

Sketch< bool > * render ( ) const [private, virtual]

Render into a sketch space and return reference.

Render line to SketchSpace and return a pointer to the sketch. This function does not link the Sketch<bool>* in the shape to the sketch returned.

Implements BaseData.

Definition at line 1462 of file LineData.cc.

Referenced by LineData::getRendering().

void renderOnTo ( Sketch< bool > * draw_result ) const

Definition at line 1474 of file LineData.cc.

Referenced by LineData::render().

const EndPoint & rightPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 285 of file LineData.cc.

EndPoint & rightPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 284 of file LineData.cc.

Referenced by LineData::pointOnLine(), and LineData::rightPtShape().

Shape< PointData > rightPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 299 of file LineData.cc.

int scanHorizForEndPts	(	const Sketch< uint > &	skelDist,
		const Sketch< bool > &	occlusions,
		float	m,
		float	b,
		int	xstart
	)

skel has to be this close to start a segment

Definition at line 1296 of file LineData.cc.

int scanVertForEndPts	(	const Sketch< uint > &	skelDist,
		const Sketch< bool > &	occlusions,
		float	m,
		float	b,
		int	ystart
	)

skel has to be this close to start a segment

Definition at line 1366 of file LineData.cc.

const EndPoint & secondPt ( const LineData & otherline ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 378 of file LineData.cc.

const EndPoint & secondPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 367 of file LineData.cc.

EndPoint & secondPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 356 of file LineData.cc.

Referenced by LineData::secondPtCoord(), LineData::secondPtShape(), and LineData::updateParams().

coordinate_t secondPtCoord ( const LineData & otherline ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 419 of file LineData.cc.

coordinate_t secondPtCoord ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 415 of file LineData.cc.

Referenced by LineData::updateParams().

Shape< PointData > secondPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 397 of file LineData.cc.

void setDrawCoords	(	float &	x1,
		float &	y1,
		float &	x2,
		float &	y2,
		const int	width,
		const int	height
	)			const `[private]`

returns a Sketch which is true where the specified line is end0_stop and end1_stop specify whether rendering should stop at endpoints

Definition at line 1487 of file LineData.cc.

Referenced by LineData::renderOnTo().

void setEndPts	(	const EndPoint &	_end1_pt,
		const EndPoint &	_end2_pt
	)

Definition at line 428 of file LineData.cc.

Referenced by LineData::scanHorizForEndPts(), LineData::scanVertForEndPts(), PolygonData::tryImportNewEndline(), and LineData::updateParams().

void setInfinite ( bool value = true )

Makes endpoints inactive if value = true.

Definition at line 80 of file LineData.cc.

Shape< LineData > splitLine	(	ShapeSpace &	ShS,
		Region &	skelchunk,
		Sketch< bool > &	skeleton,
		const Sketch< bool > &	occlusions
	)			`[static]`

Extracts most prominent line from a skeletonized image.

Extracts most prominent line from a skeletonized image. It's often useful to use the original sketch as an occluder Helper functions used by extractLine().

Definition at line 1234 of file LineData.cc.

const EndPoint & topPt ( ) const

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 287 of file LineData.cc.

EndPoint & topPt ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 286 of file LineData.cc.

Referenced by LineData::pointOnLine(), and LineData::topPtShape().

Shape< PointData > topPtShape ( )

The first point of a line is the leftmost point if the line is horizontal, else the topmost point. With an optional Shape<LineData> argument, uses the current line's orientation to pick the appropriate point of the other line.

Definition at line 307 of file LineData.cc.

void update_derived_properties ( )

Updates norm parameters (rho and theta).

Definition at line 534 of file LineData.cc.

Referenced by LineData::applyTransform(), LineData::LineData(), LineData::mergeWith(), LineData::projectToGround(), LineData::setEndPts(), TargetData::update_derived_properties(), and LineData::updateParams().