#include <opennurbs_curveproxy.h>

Inheritance diagram for ON_CurveProxy:

Public Member Functions
	ON_CurveProxy () ON_NOEXCEPT

	ON_CurveProxy (const ON_CurveProxy &)

	ON_CurveProxy (const ON_Curve *)

	ON_CurveProxy (const ON_Curve *, ON_Interval)

virtual	~ON_CurveProxy ()

ON__UINT32	DataCRC (ON__UINT32 current_remainder) const override
	virtual ON_Object::DataCRC override More...

int	Degree () const override

void	DestroyRuntimeCache (bool bDelete=true) override
	virtual ON_Object::DestroyRuntimeCache override More...

int	Dimension () const override
	ON_Geometry overrides. More...

ON_Interval	Domain () const override
	ON_Curve overrides. More...

void	Dump (ON_TextLog &) const override
	for debugging More...

ON_Curve *	DuplicateCurve () const override

bool	Evaluate (double, int, int, double , int=0, int =0) const override
	Domain changes from [a,b] to [-b,-a]. More...

bool	GetBBox (double boxmin, double boxmax, bool bGrowBox=false) const override
	virtual ON_Geometry GetBBox override More...

bool	GetCurveParameterFromNurbFormParameter (double, double *) const override
	virtual ON_Curve::GetCurveParameterFromNurbFormParameter override More...

bool	GetNextDiscontinuity (ON::continuity c, double t0, double t1, double t, int hint=nullptr, int *dtype=nullptr, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const override

int	GetNurbForm (ON_NurbsCurve &, double=0.0, const ON_Interval *=nullptr) const override

bool	GetNurbFormParameterFromCurveParameter (double, double *) const override
	virtual ON_Curve::GetNurbFormParameterFromCurveParameter override More...

bool	GetParameterTolerance (double, double , double ) const override
	(optional - override if curve is piecewise smooth) More...

bool	GetSpanVector (double *) const override

int	HasNurbForm () const override

bool	IsArc (const ON_Plane =nullptr, ON_Arc =nullptr, double=ON_ZERO_TOLERANCE) const override

bool	IsClosed (void) const override

bool	IsContinuous (ON::continuity c, double t, int *hint=nullptr, double point_tolerance=ON_ZERO_TOLERANCE, double d1_tolerance=ON_ZERO_TOLERANCE, double d2_tolerance=ON_ZERO_TOLERANCE, double cos_angle_tolerance=ON_DEFAULT_ANGLE_TOLERANCE_COSINE, double curvature_tolerance=ON_SQRT_EPSILON) const override

bool	IsInPlane (const ON_Plane &, double=ON_ZERO_TOLERANCE) const override

bool	IsLinear (double=ON_ZERO_TOLERANCE) const override

bool	IsPeriodic (void) const override
	periodic.) More...

bool	IsPlanar (ON_Plane *=nullptr, double=ON_ZERO_TOLERANCE) const override

int	IsPolyline (ON_SimpleArray< ON_3dPoint > pline_points=nullptr, ON_SimpleArray< double > pline_t=nullptr) const override
	virtual override of ON_Curve::IsPolyline More...

bool	IsValid (class ON_TextLog *text_log=nullptr) const override
	ON_Object overrides. More...

ON_CurveProxy &	operator= (const ON_CurveProxy &)

const ON_Curve *	ProxyCurve () const

ON_Interval	ProxyCurveDomain () const

bool	ProxyCurveIsReversed () const

bool	Read (ON_BinaryArchive &) override

double	RealCurveParameter (double t) const

bool	Reverse () override

bool	SetDomain (double t0, double t1) override

bool	SetDomain (ON_Interval domain)

void	SetProxyCurve (const ON_Curve *real_curve)

void	SetProxyCurve (const ON_Curve *real_curve, ON_Interval real_curve_subdomain)

bool	SetProxyCurveDomain (ON_Interval proxy_curve_subdomain)

unsigned int	SizeOf () const override
	virtual ON_Object::SizeOf override More...

int	SpanCount () const override
	number of smooth spans in curve More...

bool	Split (double t, ON_Curve &left_side, ON_Curve &right_side) const override
	override of virtual ON_Curve::Split More...

double	ThisCurveParameter (double real_curve_parameter) const

bool	Transform (const ON_Xform &) override

bool	Trim (const ON_Interval &domain) override
	override of virtual ON_Curve::Trim More...

bool	Write (ON_BinaryArchive &) const override

Public Member Functions inherited from ON_Curve
	ON_Curve () ON_NOEXCEPT

	ON_Curve (const ON_Curve &)

virtual	~ON_Curve ()

virtual bool	ChangeClosedCurveSeam (double t)

virtual bool	ChangeDimension (int desired_dimension)

ON_3dVector	CurvatureAt (double t) const

ON_3dVector	DerivativeAt (double t) const

void	DestroyCurveTree ()

bool	Ev1Der (double t, ON_3dPoint &point, ON_3dVector &first_derivative, int side=0, int *hint=0) const

bool	Ev2Der (double t, ON_3dPoint &point, ON_3dVector &first_derivative, ON_3dVector &second_derivative, int side=0, int *hint=0) const

bool	EvaluatePoint (const class ON_ObjRef &objref, ON_3dPoint &P) const override
	virtual ON_Geometry override More...

bool	EvCurvature (double t, ON_3dPoint &point, ON_3dVector &tangent, ON_3dVector &kappa, int side=0, int *hint=0) const

bool	EvPoint (double t, ON_3dPoint &point, int side=0, int *hint=0) const

bool	EvTangent (double t, ON_3dPoint &point, ON_3dVector &tangent, int side=0, int *hint=0) const

virtual bool	Extend (const ON_Interval &domain)

bool	FirstSpanIsLinear (double min_length, double tolerance) const

bool	FirstSpanIsLinear (double min_length, double tolerance, ON_Line *span_line) const

bool	FrameAt (double t, ON_Plane &plane) const

bool	GetDomain (double t0, double t1) const
	curve interface More...

virtual bool	GetSpanVectorIndex (double t, int side, int span_vector_index, ON_Interval span_domain) const

bool	GetTightBoundingBox (class ON_BoundingBox &tight_bbox, bool bGrowBox=false, const class ON_Xform *xform=nullptr) const override
	virtual ON_Geometry GetTightBoundingBox override More...

bool	IsArcAt (double t, const ON_Plane plane=0, ON_Arc arc=0, double tolerance=ON_ZERO_TOLERANCE, double t0=0, double t1=0) const

bool	IsClosable (double tolerance, double min_abs_size=0.0, double min_rel_size=10.0) const

virtual bool	IsEllipse (const ON_Plane plane=nullptr, ON_Ellipse ellipse=nullptr, double tolerance=ON_ZERO_TOLERANCE) const

bool	LastSpanIsLinear (double min_length, double tolerance) const

bool	LastSpanIsLinear (double min_length, double tolerance, ON_Line *span_line) const

ON_NurbsCurve *	NurbsCurve (ON_NurbsCurve pNurbsCurve=nullptr, double tolerance=0.0, const ON_Interval subdomain=nullptr) const

ON::object_type	ObjectType () const override

ON_Curve &	operator= (const ON_Curve &)

ON_3dPoint	PointAt (double t) const

ON_3dPoint	PointAtEnd () const

ON_3dPoint	PointAtStart () const

bool	SetDomain (ON_Interval domain)

virtual bool	SetEndPoint (ON_3dPoint end_point)

virtual bool	SetStartPoint (ON_3dPoint start_point)

ON_3dVector	TangentAt (double t) const

Public Member Functions inherited from ON_Geometry
	ON_Geometry ()=default

	ON_Geometry (const ON_Geometry &)=default

	~ON_Geometry ()=default

ON_BoundingBox	BoundingBox () const

virtual class ON_Brep *	BrepForm (class ON_Brep *brep=nullptr) const

virtual void	ClearBoundingBox ()

virtual ON_COMPONENT_INDEX	ComponentIndex () const

bool	GetBoundingBox (ON_BoundingBox &bbox, bool bGrowBox=false) const

bool	GetBoundingBox (ON_3dPoint &bbox_min, ON_3dPoint &bbox_max, bool bGrowBox=false) const

virtual bool	HasBrepForm () const

virtual bool	IsDeformable () const

bool	IsValid (class ON_TextLog *text_log=nullptr) const override

virtual bool	MakeDeformable ()

ON_Geometry &	operator= (const ON_Geometry &)=default

bool	Rotate (double sin_angle, double cos_angle, const ON_3dVector &rotation_axis, const ON_3dPoint &rotation_center)

bool	Rotate (double rotation_angle, const ON_3dVector &rotation_axis, const ON_3dPoint &rotation_center)

bool	Scale (double scale_factor)

virtual bool	SwapCoordinates (int i, int j)

bool	Translate (const ON_3dVector &translation_vector)

Public Member Functions inherited from ON_Object
	ON_Object () ON_NOEXCEPT

	ON_Object (const ON_Object &)

virtual	~ON_Object ()

virtual ON_AggregateComponentStatus	AggregateComponentStatus () const

bool	AttachUserData (class ON_UserData *pUserData)

unsigned int	ClearAllComponentStates () const

virtual unsigned int	ClearComponentStates (ON_ComponentStatus states_to_clear) const

virtual unsigned int	ClearComponentStates (ON_COMPONENT_INDEX component_index, ON_ComponentStatus states_to_clear) const

unsigned int	CopyUserData (const ON_Object &source_object, ON_UUID source_userdata_item_id, ON_Object::UserDataConflictResolution userdata_conflict_resolution)

void	CopyUserData (const ON_Object &source_object)

virtual bool	DeleteComponents (const ON_COMPONENT_INDEX *ci_list, size_t ci_count)

bool	DetachUserData (class ON_UserData *pUserData)

void	EmergencyDestroy ()

class ON_UserData *	FirstUserData () const

virtual unsigned int	GetComponentsWithSetStates (ON_ComponentStatus states_filter, bool bAllEqualStates, ON_SimpleArray< ON_COMPONENT_INDEX > &components) const

class ON_UserData *	GetUserData (const ON_UUID &userdata_uuid) const

bool	GetUserString (const wchar_t *key, ON_wString &string_value) const

int	GetUserStringKeys (ON_ClassArray< ON_wString > &user_string_keys) const

int	GetUserStrings (ON_ClassArray< ON_UserString > &user_strings) const

bool	IsKindOf (const ON_ClassId *pClassId) const

virtual void	MarkAggregateComponentStatusAsNotCurrent () const

virtual void	MemoryRelocate ()

virtual ON_UUID	ModelObjectId () const

unsigned int	MoveUserData (ON_Object &source_object, ON_UUID source_userdata_item_id, ON_Object::UserDataConflictResolution userdata_conflict_resolution, bool bDeleteAllSourceItems)

void	MoveUserData (ON_Object &source_object)

ON_Object &	operator= (const ON_Object &)

void	PurgeUserData ()

virtual unsigned int	SetComponentStates (ON_COMPONENT_INDEX component_index, ON_ComponentStatus states_to_set) const

virtual unsigned int	SetComponentStatus (ON_COMPONENT_INDEX component_index, ON_ComponentStatus status_to_copy) const

bool	SetUserString (const wchar_t key, const wchar_t string_value)

int	SetUserStrings (int count, const ON_UserString *user_strings, bool bReplace)

void	TransformUserData (const class ON_Xform &xform)

virtual bool	UpdateReferencedComponents (const class ON_ComponentManifest &source_manifest, const class ON_ComponentManifest &destination_manifest, const class ON_ManifestMap &manifest_map)

int	UserStringCount () const

Protected Member Functions
void	SetProxyCurveIsReversed (bool bReversed)

Protected Member Functions inherited from ON_Curve
bool	ParameterSearch (double t, int &index, bool bEnableSnap, const ON_SimpleArray< double > &m_t, double RelTol=ON_SQRT_EPSILON) const

Additional Inherited Members
Public Types inherited from ON_Object
enum	UserDataConflictResolution : unsigned char { UserDataConflictResolution::destination_object = 0, UserDataConflictResolution::source_object = 1, UserDataConflictResolution::source_copycount_gt = 2, UserDataConflictResolution::source_copycount_ge = 3, UserDataConflictResolution::destination_copycount_gt = 4, UserDataConflictResolution::destination_copycount_ge = 5, UserDataConflictResolution::delete_item = 6 }

Static Public Attributes inherited from ON_Geometry
static const ON_Geometry	Unset

Constructor & Destructor Documentation

◆ ON_CurveProxy() [1/4]

ON_CurveProxy::ON_CurveProxy ( )

◆ ~ON_CurveProxy()

virtual ON_CurveProxy::~ON_CurveProxy ( )

virtual

◆ ON_CurveProxy() [2/4]

ON_CurveProxy::ON_CurveProxy ( const ON_CurveProxy & )

◆ ON_CurveProxy() [3/4]

ON_CurveProxy::ON_CurveProxy ( const ON_Curve * )

◆ ON_CurveProxy() [4/4]

ON_CurveProxy::ON_CurveProxy	(	const ON_Curve *	,
		ON_Interval
	)

Member Function Documentation

◆ DataCRC()

ON__UINT32 ON_CurveProxy::DataCRC ( ON__UINT32 current_remainder ) const

overridevirtual

virtual ON_Object::DataCRC override

Reimplemented from ON_Object.

◆ Degree()

int ON_CurveProxy::Degree ( ) const

overridevirtual

Description: Returns maximum algebraic degree of any span or a good estimate if curve spans are not algebraic. Returns: degree

Implements ON_Curve.

◆ DestroyRuntimeCache()

void ON_CurveProxy::DestroyRuntimeCache ( bool bDelete = true )

overridevirtual

virtual ON_Object::DestroyRuntimeCache override

Reimplemented from ON_Curve.

Reimplemented in ON_PolyEdgeSegment.

◆ Dimension()

int ON_CurveProxy::Dimension ( ) const

overridevirtual

ON_Geometry overrides.

Reimplemented from ON_Geometry.

◆ Domain()

ON_Interval ON_CurveProxy::Domain ( ) const

overridevirtual

ON_Curve overrides.

Returns: domain of the curve. Remarks: If m_bReverse is true, this returns the reverse of m_domain.

Implements ON_Curve.

◆ Dump()

void ON_CurveProxy::Dump ( ON_TextLog & ) const

overridevirtual

for debugging

Reimplemented from ON_Object.

◆ DuplicateCurve()

ON_Curve* ON_CurveProxy::DuplicateCurve ( ) const

overridevirtual

Description: Get a duplicate of the curve. Returns: A duplicate of the curve. Remarks: The caller must delete the returned curve. For non-ON_CurveProxy objects, this simply duplicates the curve using ON_Object::Duplicate. For ON_CurveProxy objects, this duplicates the actual proxy curve geometry and, if necessary, trims and reverse the result to that the returned curve's parameterization and locus match the proxy curve's.

Reimplemented from ON_Curve.

Reimplemented in ON_PolyEdgeSegment.

◆ Evaluate()

bool ON_CurveProxy::Evaluate	(	double	,
		int	,
		int	,
		double *	,
		int	= `0`,
		int *	= `0`
	)		const

overridevirtual

Domain changes from [a,b] to [-b,-a].

Implements ON_Curve.

◆ GetBBox()

bool ON_CurveProxy::GetBBox	(	double *	boxmin,
		double *	boxmax,
		bool	bGrowBox = `false`
	)		const

overridevirtual

virtual ON_Geometry GetBBox override

Reimplemented from ON_Geometry.

◆ GetCurveParameterFromNurbFormParameter()

bool ON_CurveProxy::GetCurveParameterFromNurbFormParameter	(	double	,
		double *
	)		const

overridevirtual

virtual ON_Curve::GetCurveParameterFromNurbFormParameter override

Reimplemented from ON_Curve.

◆ GetNextDiscontinuity()

bool ON_CurveProxy::GetNextDiscontinuity	(	ON::continuity	c,
		double	t0,
		double	t1,
		double *	t,
		int *	hint = `nullptr`,
		int *	dtype = `nullptr`,
		double	cos_angle_tolerance = `ON_DEFAULT_ANGLE_TOLERANCE_COSINE`,
		double	curvature_tolerance = `ON_SQRT_EPSILON`
	)		const

overridevirtual

Description: Search for a derivatitive, tangent, or curvature discontinuity. Parameters: c - [in] type of continity to test for. If ON::continuity::C1_continuous t0 - [in] search begins at t0 t1 - [in] (t0 < t1) search ends at t1 t - [out] if a discontinuity is found, the *t reports the parameter at the discontinuity. hint - [in/out] if GetNextDiscontinuity will be called repeatedly, passing a "hint" with initial value *hint=0 will increase the speed of the search. dtype - [out] if not nullptr, *dtype reports the kind of discontinuity found at *t. A value of 1 means the first derivative or unit tangent was discontinuous. A value of 2 means the second derivative or curvature was discontinuous. cos_angle_tolerance - [in] default = cos(1 degree) Used only when c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine of the angle between two tangent vectors is <= cos_angle_tolerance, then a G1 discontinuity is reported. curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. ON::continuity::G2_continuous: If K0 and K1 are curvatures evaluated from above and below and |K0 - K1| > curvature_tolerance, then a curvature discontinuity is reported. ON::continuity::Gsmooth_continuous: If K0 and K1 are curvatures evaluated from above and below and the angle between K0 and K1 is at least twice angle tolerance or ||K0| - |K1|| > (max(|K0|,|K1|) > curvature_tolerance, then a curvature discontinuity is reported. Returns: true if a discontinuity was found on the interior of the interval (t0,t1). Remarks: Overrides ON_Curve::GetNextDiscontinuity.

Reimplemented from ON_Curve.

◆ GetNurbForm()

int ON_CurveProxy::GetNurbForm	(	ON_NurbsCurve &	nurbs_curve,
		double	tolerance = `0.0`,
		const ON_Interval *	subdomain = `nullptr`
	)		const

overridevirtual

Description: Get a NURBS curve representation of this curve. Parameters: nurbs_curve - [out] NURBS representation returned here tolerance - [in] tolerance to use when creating NURBS representation. subdomain - [in] if not nullptr, then the NURBS representation for this portion of the curve is returned. Returns: 0 unable to create NURBS representation with desired accuracy. 1 success - returned NURBS parameterization matches the curve's to wthe desired accuracy 2 success - returned NURBS point locus matches the curve's to the desired accuracy and the domain of the NURBS curve is correct. On However, This curve's parameterization and the NURBS curve parameterization may not match to the desired accuracy. This situation happens when getting NURBS representations of curves that have a transendental parameterization like circles Remarks: This is a low-level virtual function. If you do not need the parameterization information provided by the return code, then ON_Curve::NurbsCurve may be easier to use. See Also: ON_Curve::NurbsCurve

Parameters

nurbs_curve	returns 0: unable to create NURBS representation with desired accuracy. 1: success - returned NURBS parameterization matches the curve's to wthe desired accuracy 2: success - returned NURBS point locus matches the curve's to the desired accuracy but, on the interior of the curve's domain, the curve's parameterization and the NURBS parameterization may not match to the desired accuracy.
subdomain	OPTIONAL subdomain of ON_CurveProxy::Domain()

Reimplemented from ON_Curve.

◆ GetNurbFormParameterFromCurveParameter()

bool ON_CurveProxy::GetNurbFormParameterFromCurveParameter	(	double	,
		double *
	)		const

overridevirtual

virtual ON_Curve::GetNurbFormParameterFromCurveParameter override

Reimplemented from ON_Curve.

◆ GetParameterTolerance()

bool ON_CurveProxy::GetParameterTolerance	(	double	,
		double *	,
		double *
	)		const

overridevirtual

(optional - override if curve is piecewise smooth)

Reimplemented from ON_Curve.

◆ GetSpanVector()

bool ON_CurveProxy::GetSpanVector ( double * knots ) const

overridevirtual

Description: Get number of parameters of "knots". Parameters: knots - [out] an array of length SpanCount()+1 is filled in with the parameters where the curve is not smooth (C-infinity). Returns: true if successful

Implements ON_Curve.

◆ HasNurbForm()

int ON_CurveProxy::HasNurbForm ( ) const

overridevirtual

Description: Does a NURBS curve representation of this curve. Parameters: Returns: 0 unable to create NURBS representation with desired accuracy. 1 success - NURBS parameterization matches the curve's to wthe desired accuracy 2 success - NURBS point locus matches the curve's and the domain of the NURBS curve is correct. However, This curve's parameterization and the NURBS curve parameterization may not match. This situation happens when getting NURBS representations of curves that have a transendental parameterization like circles Remarks: This is a low-level virtual function. See Also: ON_Curve::GetNurbForm ON_Curve::NurbsCurve

Reimplemented from ON_Curve.

◆ IsArc()

bool ON_CurveProxy::IsArc	(	const ON_Plane *	plane = `nullptr`,
		ON_Arc *	arc = `nullptr`,
		double	tolerance = `ON_ZERO_TOLERANCE`
	)		const

overridevirtual

Description: Test a curve to see if the locus if its points is an arc or circle. Parameters: plane - [in] if not nullptr, test is performed in this plane arc - [out] if not nullptr and true is returned, then arc parameters are filled in tolerance - [in] tolerance to use when checking Returns: ON_Arc.m_angle > 0 if curve locus is an arc between specified points. If ON_Arc.m_angle is 2.0*ON_PI, then the curve is a circle.

Parameters

plane	ON_Arc.m_angle > 0 if curve locus is an arc between specified points if not nullptr, test is performed in this plane
arc	if not nullptr and true is returned, then arc parameters
tolerance	are filled in tolerance to use when checking

Reimplemented from ON_Curve.

◆ IsClosed()

bool ON_CurveProxy::IsClosed ( void ) const

overridevirtual

CV = euclidean location of end CV, or curve is

Reimplemented from ON_Curve.

Reimplemented in ON_PolyEdgeSegment.

◆ IsContinuous()

bool ON_CurveProxy::IsContinuous	(	ON::continuity	c,
		double	t,
		int *	hint = `nullptr`,
		double	point_tolerance = `ON_ZERO_TOLERANCE`,
		double	d1_tolerance = `ON_ZERO_TOLERANCE`,
		double	d2_tolerance = `ON_ZERO_TOLERANCE`,
		double	cos_angle_tolerance = `ON_DEFAULT_ANGLE_TOLERANCE_COSINE`,
		double	curvature_tolerance = `ON_SQRT_EPSILON`
	)		const

overridevirtual

Description: Test continuity at a curve parameter value. Parameters: c - [in] continuity to test for t - [in] parameter to test hint - [in] evaluation hint point_tolerance - [in] if the distance between two points is greater than point_tolerance, then the curve is not C0. d1_tolerance - [in] if the difference between two first derivatives is greater than d1_tolerance, then the curve is not C1. d2_tolerance - [in] if the difference between two second derivatives is greater than d2_tolerance, then the curve is not C2. cos_angle_tolerance - [in] default = cos(1 degree) Used only when c is ON::continuity::G1_continuous or ON::continuity::G2_continuous. If the cosine of the angle between two tangent vectors is <= cos_angle_tolerance, then a G1 discontinuity is reported. curvature_tolerance - [in] (default = ON_SQRT_EPSILON) Used only when c is ON::continuity::G2_continuous or ON::continuity::Gsmooth_continuous. ON::continuity::G2_continuous: If K0 and K1 are curvatures evaluated from above and below and |K0 - K1| > curvature_tolerance, then a curvature discontinuity is reported. ON::continuity::Gsmooth_continuous: If K0 and K1 are curvatures evaluated from above and below and the angle between K0 and K1 is at least twice angle tolerance or ||K0| - |K1|| > (max(|K0|,|K1|) > curvature_tolerance, then a curvature discontinuity is reported. Returns: true if the curve has at least the c type continuity at the parameter t. Remarks: Overrides ON_Curve::IsContinuous.

Reimplemented from ON_Curve.

◆ IsInPlane()

bool ON_CurveProxy::IsInPlane	(	const ON_Plane &	test_plane,
		double	tolerance = `ON_ZERO_TOLERANCE`
	)		const

overridevirtual

Description: Test a curve to see if it lies in a specific plane. Parameters: test_plane - [in] tolerance - [in] tolerance to use when checking Returns: true if the maximum distance from the curve to the test_plane is <= tolerance.

Parameters

test_plane	plane to test
tolerance	tolerance to use when checking

Implements ON_Curve.

◆ IsLinear()

bool ON_CurveProxy::IsLinear ( double tolerance = ON_ZERO_TOLERANCE ) const

overridevirtual

Description: Test a curve to see if the locus if its points is a line segment. Parameters: tolerance - [in] ///< tolerance to use when checking linearity Returns: true if the ends of the curve are farther than tolerance apart and the maximum distance from any point on the curve to the line segment connecting the curve's ends is <= tolerance.

Parameters

tolerance true if curve locus is a line segment between between specified points tolerance to use when checking linearity

Reimplemented from ON_Curve.

◆ IsPeriodic()

bool ON_CurveProxy::IsPeriodic ( void ) const

overridevirtual

periodic.)

Reimplemented from ON_Curve.

◆ IsPlanar()

bool ON_CurveProxy::IsPlanar	(	ON_Plane *	plane = `nullptr`,
		double	tolerance = `ON_ZERO_TOLERANCE`
	)		const

overridevirtual

Description: Test a curve to see if it is planar. Parameters: plane - [out] if not nullptr and true is returned, the plane parameters are filled in. tolerance - [in] tolerance to use when checking Returns: true if there is a plane such that the maximum distance from the curve to the plane is <= tolerance.

Parameters

plane	if not nullptr and true is returned, then plane parameters
tolerance	are filled in tolerance to use when checking

Reimplemented from ON_Curve.

◆ IsPolyline()

int ON_CurveProxy::IsPolyline	(	ON_SimpleArray< ON_3dPoint > *	pline_points = `nullptr`,
		ON_SimpleArray< double > *	pline_t = `nullptr`
	)		const

overridevirtual

virtual override of ON_Curve::IsPolyline

Reimplemented from ON_Curve.

◆ IsValid()

bool ON_CurveProxy::IsValid ( class ON_TextLog * text_log = nullptr ) const

overridevirtual

ON_Object overrides.

Reimplemented from ON_Object.

◆ operator=()

ON_CurveProxy& ON_CurveProxy::operator= ( const ON_CurveProxy & )

◆ ProxyCurve()

const ON_Curve* ON_CurveProxy::ProxyCurve ( ) const

Returns: "Real" curve geometry that "this" is a proxy for.

◆ ProxyCurveDomain()

ON_Interval ON_CurveProxy::ProxyCurveDomain ( ) const

Returns: Sub interval of the "real" curve's domain that "this" uses. This interval is not necessarily the same as "this" curve's domain. Remarks: This function is poorly named. It does NOT get the proxy curve's domain. It does get the evaluation interval of the "real" curve for which "this" is a proxy.

◆ ProxyCurveIsReversed()

bool ON_CurveProxy::ProxyCurveIsReversed ( ) const

Returns: True if "this" as a curve is reversed from the "real" curve geometry.

◆ Read()

bool ON_CurveProxy::Read ( ON_BinaryArchive & binary_archive )

overridevirtual

Description: Low level archive writing tool used by ON_BinaryArchive::ReadObject(). Parameters: binary_archive - archive to read from Returns: Returns true if the read is successful. Remarks: Use ON_BinaryArchive::ReadObject() to read objects. This Read() function should read the objects definition back into its data members.

The default implementation of this virtual function returns false and does nothing.

Parameters

binary_archive returns false - nothing serialized open binary file

Reimplemented from ON_Object.

Reimplemented in ON_PolyEdgeSegment.

◆ RealCurveParameter()

double ON_CurveProxy::RealCurveParameter ( double t ) const

Parameters: t - [in] parameter for "this" curve Returns: Corresponding parameter in m_real_curve's domain.

◆ Reverse()

bool ON_CurveProxy::Reverse ( )

overridevirtual

reverse parameterizatrion

Implements ON_Curve.

◆ SetDomain() [1/2]

bool ON_CurveProxy::SetDomain	(	double	t0,
		double	t1
	)

overridevirtual

virtual ON_Curve::SetDomain() override

Reimplemented from ON_Curve.

◆ SetDomain() [2/2]

bool ON_CurveProxy::SetDomain ( ON_Interval domain )

◆ SetProxyCurve() [1/2]

void ON_CurveProxy::SetProxyCurve ( const ON_Curve * real_curve )

Description: Sets the curve geometry that "this" is a proxy for. Sets proxy domain to proxy_curve->Domain(). Parameters: real_curve - [in]

◆ SetProxyCurve() [2/2]

void ON_CurveProxy::SetProxyCurve	(	const ON_Curve *	real_curve,
		ON_Interval	real_curve_subdomain
	)

Description: Sets the curve geometry that "this" is a proxy for. Sets proxy domain to proxy_curve->Domain(). Parameters: real_curve - [in] real_curve_subdomain - [in] increasing sub interval of real_curve->Domain(). This interval defines the portion the "real" curve geometry that "this" proxy uses. bReversed - [in] true if the parameterization of "this" proxy as a curve is reversed from the underlying "real" curve geometry.

◆ SetProxyCurveDomain()

bool ON_CurveProxy::SetProxyCurveDomain ( ON_Interval proxy_curve_subdomain )

Description: Sets portion of the "real" curve that this proxy represents. Does NOT change the domain of "this" curve. Parameters: proxy_curve_subdomain - [in] increasing sub interval of ProxyCurve()->Domain(). This interval defines the portion the curve geometry that "this" proxy uses. Remarks: This function is poorly named. It does NOT set the proxy curve's domain. It does set the interval of the "real" curve for which "this" is a proxy.

◆ SetProxyCurveIsReversed()

void ON_CurveProxy::SetProxyCurveIsReversed ( bool bReversed )

protected

Used by CRhinoPolyEdgeSegment::Create() to restore the value of ON_CurveProxy::m_bReversed.

◆ SizeOf()

unsigned int ON_CurveProxy::SizeOf ( ) const

overridevirtual

virtual ON_Object::SizeOf override

Reimplemented from ON_Curve.

◆ SpanCount()

int ON_CurveProxy::SpanCount ( ) const

overridevirtual

number of smooth spans in curve

Implements ON_Curve.

◆ Split()

bool ON_CurveProxy::Split	(	double	t,
		ON_Curve *&	left_side,
		ON_Curve *&	right_side
	)		const

overridevirtual

override of virtual ON_Curve::Split

Reimplemented from ON_Curve.

◆ ThisCurveParameter()

double ON_CurveProxy::ThisCurveParameter ( double real_curve_parameter ) const

Parameters: real_curve_parameter - [in] m_real_curve parameter Returns: Corresponding parameter for "this" curve

◆ Transform()

bool ON_CurveProxy::Transform ( const ON_Xform & xform )

overridevirtual

Description: overrides virtual ON_Geometry::Transform(). ON_Curve::Transform() calls ON_Geometry::Transform(xform), which calls ON_Object::TransformUserData(xform), and then calls this->DestroyCurveTree(). Parameters: xform - [in] transformation to apply to object. Remarks: Classes derived from ON_Curve should call ON_Curve::Transform() to handle user data transformations and curve tree destruction and then transform their definition.

Reimplemented from ON_Curve.

◆ Trim()

bool ON_CurveProxy::Trim ( const ON_Interval & domain )

overridevirtual

override of virtual ON_Curve::Trim

Reimplemented from ON_Curve.

◆ Write()

bool ON_CurveProxy::Write ( ON_BinaryArchive & binary_archive ) const

overridevirtual

Description: Low level archive writing tool used by ON_BinaryArchive::WriteObject(). Parameters: binary_archive - archive to write to Returns: Returns true if the write is successful. Remarks: Use ON_BinaryArchive::WriteObject() to write objects. This Write() function should just write the specific definition of this object. It should not write and any chunk typecode or length information.

The default implementation of this virtual function returns false and does nothing.

Parameters

binary_archive returns false - nothing serialized open binary file

Reimplemented from ON_Object.

Reimplemented in ON_PolyEdgeSegment.

Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ ON_CurveProxy() [1/4]

◆ ~ON_CurveProxy()

◆ ON_CurveProxy() [2/4]

◆ ON_CurveProxy() [3/4]

◆ ON_CurveProxy() [4/4]

Member Function Documentation

◆ DataCRC()

◆ Degree()

◆ DestroyRuntimeCache()

◆ Dimension()

◆ Domain()

◆ Dump()

◆ DuplicateCurve()

◆ Evaluate()

◆ GetBBox()

◆ GetCurveParameterFromNurbFormParameter()

◆ GetNextDiscontinuity()

◆ GetNurbForm()

◆ GetNurbFormParameterFromCurveParameter()

◆ GetParameterTolerance()

◆ GetSpanVector()

◆ HasNurbForm()

◆ IsArc()

◆ IsClosed()

◆ IsContinuous()

◆ IsInPlane()

◆ IsLinear()

◆ IsPeriodic()

◆ IsPlanar()

◆ IsPolyline()

◆ IsValid()

◆ operator=()

◆ ProxyCurve()

◆ ProxyCurveDomain()

◆ ProxyCurveIsReversed()

◆ Read()

◆ RealCurveParameter()

◆ Reverse()

◆ SetDomain() [1/2]

◆ SetDomain() [2/2]

◆ SetProxyCurve() [1/2]

◆ SetProxyCurve() [2/2]

◆ SetProxyCurveDomain()

◆ SetProxyCurveIsReversed()

◆ SizeOf()

◆ SpanCount()

◆ Split()

◆ ThisCurveParameter()

◆ Transform()

◆ Trim()

◆ Write()