OMC::Bezier Class Reference

Detailed Description

Defines a bezier formed with a number of points.

Public Member Functions
OMC::DrawingVectorContour *	operator[] (int idx) const
	Returns the point at the given index on the bezier path. More...
bool	contains (OMC::Point2d *) const
	Identifies if the list contains the art layer object.
bool	equivalent_reverse (OMC::Bezier *other) const
	Identifies if the reversed bezier is equivalent.. More...
void	multiply (const QVariant &value)
	Multiply the bezier with a value. More...
void	round (double pointQuantum=1.0/64.0)
	Round the bezier with a point quantum. More...
void	reverse ()
	Reverses this bezier.
OMC::Bezier *	derivative () const
	Provides the derivative bezier of this bezier.
bool	intersecting () const
	Identifies if the bezier is self-interesecting.
bool	intersecting (OMC::Bezier *bez) const
	Identifies if the bezier is interesecting with another bezier segment.
QList< OMC::Point2d * >	intersections () const
	Provides a list of all self-interestions. More...
QList< OMC::Point2d * >	intersections (OMC::Bezier *bez) const
	Provides a list of all interestions between the bezier curve provided. More...
double	closest_point (OMC::Point2d *) const
	Finds the evaluated value that would provide the nearest point on the curve. More...
OMC::Point2d *	evaluate (double t) const
	Evaluates the bezier at the given point along the curve. More...
OMC::Point2d *	evaluate_and_round (double t) const
	Evaluates the bezier at the given point along the curve. More...
OMC::Bezier *	split (double t)
	Splits the curve at a given point. More...
OMC::Bezier *	truncate (double from_t, double to_t)
	Truncates the bezier from a given point, to a given point. More...
void	straighten ()
	Straightens the bezier into a single line segment. More...
virtual std::vector< OMC::Point2d * >	list () const override
	Converts the dynamic list into a concrete list of drawing vector stroke objects.

Public Attributes
int	degree
QString	from_boundary
double	from_parameter
OMC::Vector2d *	from_tangent
QString	to_boundary
double	to_parameter
OMC::Vector2d *	to_tangent
OMC::AllocatedRect2d *	bounding_box
bool	line
bool	cusp
uint	inflections

Member Function Documentation

closest_point()

double OMC::Bezier::closest_point

(

OMC::Point2d *

)

const

Finds the evaluated value that would provide the nearest point on the curve.

Returns

The evaluated double value that would provide the nearest point on the curve.

equivalent_reverse()

bool OMC::Bezier::equivalent_reverse

(

OMC::Bezier *

other

)

const

Identifies if the reversed bezier is equivalent..

Returns

True if the bezier is equivalent when reversed.

evaluate()

OMC::Point2d* OMC::Bezier::evaluate

(

double

t

)

const

Evaluates the bezier at the given point along the curve.

Using a value from 0.0 to 1.0, returns a OMC::Point2d* along that curve.

Returns

A OMC::Point2d* object at that point along the curve.

evaluate_and_round()

OMC::Point2d* OMC::Bezier::evaluate_and_round

(

double

t

)

const

Evaluates the bezier at the given point along the curve.

Using a value from 0.0 to 1.0, returns a rounded OMC::Point2d* along that curve.

Returns

A rounded OMC::Point2d* object at that point along the curve.

intersections() [1/2]

QList<OMC::Point2d*> OMC::Bezier::intersections

(

)

const

Provides a list of all self-interestions.

Returns

A list of all OMC::Point2d* intersctions within the curve.

intersections() [2/2]

QList<OMC::Point2d*> OMC::Bezier::intersections

(

OMC::Bezier *

bez

)

const

Provides a list of all interestions between the bezier curve provided.

Returns

A list of all OMC::Point2d* intersctions between this curve and the provided curve.

multiply()

void OMC::Bezier::multiply

(

const QVariant &

value

)

Multiply the bezier with a value.

Multiplies the bezier in place with a value – the value can be a single number, or a matrix (only 2D components are considered).

operator[]()

OMC::DrawingVectorContour* OMC::Bezier::operator[]

(

int

idx

)

const

Returns the point at the given index on the bezier path.

round()

void OMC::Bezier::round

(

double

pointQuantum = 1.0/64.0

)

Round the bezier with a point quantum.

split()

OMC::Bezier* OMC::Bezier::split

(

double

t

)

Splits the curve at a given point.

Splits the curve at a given point along the curve. This curve will be the initial portion of the curve, from the starting point to the split point. The returned OMC::Bezier* provides the remaining portion of the curve, from the split point to the ending point

Returns

Modifies this Bezier curve with the initial portion, and returns a OMC::Bezier* with the remaining portion.

straighten()

void OMC::Bezier::straighten

(

)

Straightens the bezier into a single line segment.

Transform this bezier into a bezier of degree 1, representing a line segment.

truncate()

OMC::Bezier* OMC::Bezier::truncate	(	double	from_t,
		double	to_t
	)

Truncates the bezier from a given point, to a given point.

Provides a truncated bezier between the given start point and endpoint. This does not modify the existing bezier, and returns the truncated bezier.

Returns

Returns the truncated OMC::Bezier* object.

Member Data Documentation

bounding_box

OMC::Bezier::bounding_box

Get the bounding-box of the bezier.

cusp

bool OMC::Bezier::cusp

read

True if the bezier has a cusp.

degree

int OMC::Bezier::degree

readwrite

Get and set the bezier's degree. Valid degrees are from 0 to 3.

from_boundary

QString OMC::Bezier::from_boundary

readwrite

Get and set the bezier's from boundary, valid values are Open and Closed.

from_parameter

double OMC::Bezier::from_parameter

readwrite

Get and set the bezier's from paramater. This is the point at which the bezier begins to interpolate when evaluated.

from_tangent

OMC::Bezier::from_tangent

Get the bezier's from tangent.

inflections

uint OMC::Bezier::inflections

read

The number of inflection points in the bezier curve.

line

bool OMC::Bezier::line

read

True if the bezier represents a line segment.

to_boundary

QString OMC::Bezier::to_boundary

readwrite

Get and set the bezier's to boundary, valid values are Open and Closed.

to_parameter

double OMC::Bezier::to_parameter

readwrite

Get and set the bezier's to paramater. This is the point at which the bezier begins to interpolate when evaluated.

to_tangent

OMC::Bezier::to_tangent

Get the bezier's to tangent.

Inheritance diagram for OMC::Bezier:

Collaboration diagram for OMC::Bezier: