Rhino C++ API  7.18
Public Member Functions | List of all members
ON_SubDEdgeChainCurve Class Reference

#include <opennurbs_subd.h>

Inheritance diagram for ON_SubDEdgeChainCurve:
ON_Curve ON_Geometry ON_Object

Public Member Functions

 ON_SubDEdgeChainCurve ()=default
 
 ON_SubDEdgeChainCurve (const ON_SubDEdgeChain &edge_chain)
 
 ON_SubDEdgeChainCurve (const ON_SubDEdgeChainCurve &)=default
 
 ON_SubDEdgeChainCurve (ON_UUID persistent_subd_id, const ON_SubD &subd, const ON_SimpleArray< ON_SubDEdgePtr > &edge_chain)
 
 ON_SubDEdgeChainCurve (ON_UUID persistent_subd_id, const ON_SubDRef subd_ref, const ON_SimpleArray< ON_SubDEdgePtr > &edge_chain)
 
 ~ON_SubDEdgeChainCurve ()=default
 
bool ChangeClosedChainStart (unsigned int edge_index)
 
bool ChangeClosedCurveSeam (double t) override
 
bool ChangeDimension (int desired_dimension) override
 
void ClearBoundingBox () override
 
ON__UINT32 DataCRC (ON__UINT32 current_remainder) const override
 
int Degree () const override
 
void DestroyRuntimeCache (bool bDelete=true) override
 virtual ON_Object::DestroyRuntimeCache override More...
 
int Dimension () const override
 ON_Geometry virtual interface. More...
 
ON_Interval Domain () const override
 ON_Curve virtual interface. More...
 
void Dump (ON_TextLog &) const override
 
const ON_SubDEdgeChainEdgeChain () const
 
unsigned int EdgeCount () const
 default is ok ///< class ON_CurveTree* CreateCurveTree() const override; More...
 
unsigned EdgeIndexFromParameter (double t, double *normalized_edge_parameter) const
 
const ON_SubDEdgePtr EdgePtr (unsigned int i) const
 
const ON_SubDEdgePtr EdgePtrFromParameter (double t, double *normalized_edge_parameter) const
 
ON_NurbsCurveEdgeSurfaceCurve (ON_NurbsCurve *destination) const
 
bool Evaluate (double t, int der_count, int v_stride, double *v, int side=0, int *hint=0) const override
 
bool Extend (const ON_Interval &domain) override
 
bool GetBBox (double *boxmin, double *boxmax, bool bGrowBox=false) const override
 
bool GetClosestPoint (const ON_3dPoint &, double *t, double maximum_distance=0.0, const ON_Interval *sub_domain=nullptr) const override
 
bool GetCurveParameterFromNurbFormParameter (double nurbs_t, double *curve_t) const override
 
bool GetLength (double *length, double fractional_tolerance=1.0e-8, const ON_Interval *sub_domain=nullptr) const override
 
bool GetLocalClosestPoint (const ON_3dPoint &test_point, double seed_parameter, double *t, const ON_Interval *sub_domain=0) const override
 
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
 
bool GetNormalizedArcLengthPoint (double s, double *t, double fractional_tolerance=1.0e-8, const ON_Interval *sub_domain=nullptr) const override
 
bool GetNormalizedArcLengthPoints (int count, const double *s, double *t, double absolute_tolerance=0.0, double fractional_tolerance=1.0e-8, const ON_Interval *sub_domain=nullptr) const override
 
int GetNurbForm (ON_NurbsCurve &nurbs_curve, double tolerance=0.0, const ON_Interval *subdomain=nullptr) const override
 
bool GetParameterTolerance (double t, double *tminus, double *tplus) const override
 
bool GetSpanVector (double *span_parameters) const override
 
bool GetSpanVectorIndex (double t, int side, int *span_vector_index, ON_Interval *span_domain) const override
 
bool GetTightBoundingBox (class ON_BoundingBox &tight_bbox, bool bGrowBox=false, const class ON_Xform *xform=nullptr) const override
 virtual ON_Geometry GetTightBoundingBox override
More...
 
int HasNurbForm () const override
 
int IntersectSelf (ON_SimpleArray< ON_X_EVENT > &x, double intersection_tolerance=0.0, const ON_Interval *curve_domain=0) const override
 
bool IsArc (const ON_Plane *plane=nullptr, ON_Arc *arc=nullptr, double tolerance=ON_ZERO_TOLERANCE) const override
 
bool IsClosed () 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 IsDeformable () const override
 
bool IsEllipse (const ON_Plane *plane=nullptr, ON_Ellipse *ellipse=nullptr, double tolerance=ON_ZERO_TOLERANCE) const override
 
bool IsInPlane (const ON_Plane &test_plane, double tolerance=ON_ZERO_TOLERANCE) const override
 
bool IsLinear (double tolerance=ON_ZERO_TOLERANCE) const override
 
bool IsMorphable () const override
 
bool IsPeriodic () const override
 
bool IsPlanar (ON_Plane *plane=nullptr, double tolerance=ON_ZERO_TOLERANCE) const override
 
int IsPolyline (ON_SimpleArray< ON_3dPoint > *pline_points=nullptr, ON_SimpleArray< double > *pline_t=nullptr) const override
 
bool IsShort (double tolerance, const ON_Interval *sub_domain=0, double *length_estimate=0) const override
 
bool IsValid (class ON_TextLog *text_log=nullptr) const override
 ON_Object virtual interface. More...
 
ON_NurbsCurveLoftCurve (ON_NurbsCurve *destination) const
 
bool Morph (const class ON_SpaceMorph &morph) override
 
ON_SubDEdgeChainCurveoperator= (const ON_SubDEdgeChainCurve &)=default
 
const ON_UUID PersistentSubDId () const
 
bool Read (ON_BinaryArchive &binary_archive) override
 
bool RemoveShortSegments (double tolerance, bool bRemoveShortSegments=true) override
 
bool Reverse () override
 
bool SetDomain (double t0, double t1) override
 
unsigned int SetEdgeChain (const ON_SubDEdgeChain &edge_chain)
 
unsigned int SetEdgeChain (ON_UUID persistent_subd_id, const ON_SubD &subd, const ON_SimpleArray< ON_SubDEdgePtr > &edge_chain)
 
unsigned int SetEdgeChain (ON_UUID persistent_subd_id, const ON_SubDRef subd_ref, const ON_SimpleArray< ON_SubDEdgePtr > &edge_chain)
 
bool SetEndPoint (ON_3dPoint end_point) override
 
bool SetStartPoint (ON_3dPoint start_point) override
 
unsigned int SizeOf () const override
 virtual ON_Object::SizeOf override More...
 
int SpanCount () const override
 
bool Split (double t, ON_Curve *&left_side, ON_Curve *&right_side) const override
 
const ON_SubDSubD () const
 
ON_SubDRef SubDRef () const
 
bool Transform (const ON_Xform &xform) override
 
bool Trim (const ON_Interval &domain) override
 
bool Write (ON_BinaryArchive &binary_archive) const override
 
- Public Member Functions inherited from ON_Curve
 ON_Curve () ON_NOEXCEPT
 
 ON_Curve (const ON_Curve &)
 
virtual ~ON_Curve ()
 
bool AreaMassProperties (ON_3dPoint base_point, ON_3dVector plane_normal, ON_MassProperties &mp, bool bArea=true, bool bFirstMoments=true, bool bSecondMoments=true, bool bProductMoments=true, double rel_tol=1.0e-6, double abs_tol=1.0e-6) const
 
bool ChangeClosedCurveSeam (double t, double min_dist)
 
virtual class ON_CurveTreeCreateCurveTree () const
 
ON_3dVector CurvatureAt (double t) const
 
const class ON_CurveTreeCurveTree () const
 
ON_3dVector DerivativeAt (double t) const
 
void DestroyCurveTree ()
 
virtual ON_CurveDuplicateCurve () const
 
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
 
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 GetNurbFormParameterFromCurveParameter (double curve_t, double *nurbs_t) const
 
int IntersectCurve (const ON_Curve *curveB, ON_SimpleArray< ON_X_EVENT > &x, double intersection_tolerance=0.0, double overlap_tolerance=0.0, const ON_Interval *curveA_domain=0, const ON_Interval *curveB_domain=0) const
 
int IntersectPlane (ON_PlaneEquation plane_equation, ON_SimpleArray< ON_X_EVENT > &x, double intersection_tolerance=0.0, double overlap_tolerance=0.0, const ON_Interval *curve_domain=0) const
 
int IntersectSurface (const ON_Surface *surfaceB, ON_SimpleArray< ON_X_EVENT > &x, double intersection_tolerance=0.0, double overlap_tolerance=0.0, const ON_Interval *curveA_domain=0, const ON_Interval *surfaceB_udomain=0, const ON_Interval *surfaceB_vdomain=0) const
 
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
 
bool LastSpanIsLinear (double min_length, double tolerance) const
 
bool LastSpanIsLinear (double min_length, double tolerance, ON_Line *span_line) const
 
bool LengthMassProperties (class ON_MassProperties &mp, bool bLength=true, bool bFirstMoments=true, bool bSecondMoments=true, bool bProductMoments=true, double rel_tol=1.0e-6, double abs_tol=1.0e-6) const
 
class ON_PolylineCurveMeshCurve (ON_MeshCurveParameters &mp, ON_PolylineCurve *polyline, bool bSkipFirstPoint, const ON_Interval *domain) const
 
ON_NurbsCurveNurbsCurve (ON_NurbsCurve *pNurbsCurve=nullptr, double tolerance=0.0, const ON_Interval *subdomain=nullptr) const
 
ON::object_type ObjectType () const override
 
ON_Curveoperator= (const ON_Curve &)
 
ON_3dPoint PointAt (double t) const
 
ON_3dPoint PointAtEnd () const
 
ON_3dPoint PointAtStart () const
 
bool SetDomain (ON_Interval domain)
 
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_BrepBrepForm (class ON_Brep *brep=nullptr) const
 
virtual ON_COMPONENT_INDEX ComponentIndex () const
 
bool GetBoundingBox (ON_3dPoint &bbox_min, ON_3dPoint &bbox_max, bool bGrowBox=false) const
 
bool GetBoundingBox (ON_BoundingBox &bbox, bool bGrowBox=false) const
 
virtual bool HasBrepForm () const
 
virtual bool MakeDeformable ()
 
ON_Geometryoperator= (const ON_Geometry &)=default
 
bool Rotate (double rotation_angle, const ON_3dVector &rotation_axis, const ON_3dPoint &rotation_center)
 
bool Rotate (double sin_angle, double cos_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_COMPONENT_INDEX component_index, ON_ComponentStatus states_to_clear) const
 
virtual unsigned int ClearComponentStates (ON_ComponentStatus states_to_clear) const
 
void CopyUserData (const ON_Object &source_object)
 
unsigned int CopyUserData (const ON_Object &source_object, ON_UUID source_userdata_item_id, ON_Object::UserDataConflictResolution userdata_conflict_resolution)
 
virtual bool DeleteComponents (const ON_COMPONENT_INDEX *ci_list, size_t ci_count)
 
bool DetachUserData (class ON_UserData *pUserData)
 
void EmergencyDestroy ()
 
class ON_UserDataFirstUserData () const
 
virtual unsigned int GetComponentsWithSetStates (ON_ComponentStatus states_filter, bool bAllEqualStates, ON_SimpleArray< ON_COMPONENT_INDEX > &components) const
 
class ON_UserDataGetUserData (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 IsCorrupt (bool bRepair, bool bSilentError, class ON_TextLog *text_log) const
 
bool IsKindOf (const ON_ClassId *pClassId) const
 
virtual void MarkAggregateComponentStatusAsNotCurrent () const
 
virtual void MemoryRelocate ()
 
virtual ON_UUID ModelObjectId () const
 
void MoveUserData (ON_Object &source_object)
 
unsigned int MoveUserData (ON_Object &source_object, ON_UUID source_userdata_item_id, ON_Object::UserDataConflictResolution userdata_conflict_resolution, bool bDeleteAllSourceItems)
 
ON_Objectoperator= (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)
 
bool ThisIsNullptr (bool bSilentError) const
 
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
 

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 Member Functions inherited from ON_Curve
static class ON_NurbsCurveCreateCubicLoft (int point_count, int point_dim, int point_stride, const double *point_list, double k, int is_closed=0, ON::cubic_loft_end_condition start_shape=ON::cubic_loft_ec_quadratic, ON::cubic_loft_end_condition end_shape=ON::cubic_loft_ec_quadratic, class ON_NurbsCurve *nurbs_curve=0)
 
- Static Public Attributes inherited from ON_Geometry
const static ON_Geometry Unset
 
- 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
 

Constructor & Destructor Documentation

◆ ON_SubDEdgeChainCurve() [1/5]

ON_SubDEdgeChainCurve::ON_SubDEdgeChainCurve ( )
default

◆ ~ON_SubDEdgeChainCurve()

ON_SubDEdgeChainCurve::~ON_SubDEdgeChainCurve ( )
default

◆ ON_SubDEdgeChainCurve() [2/5]

ON_SubDEdgeChainCurve::ON_SubDEdgeChainCurve ( const ON_SubDEdgeChainCurve )
default

◆ ON_SubDEdgeChainCurve() [3/5]

ON_SubDEdgeChainCurve::ON_SubDEdgeChainCurve ( const ON_SubDEdgeChain edge_chain)

◆ ON_SubDEdgeChainCurve() [4/5]

ON_SubDEdgeChainCurve::ON_SubDEdgeChainCurve ( ON_UUID  persistent_subd_id,
const ON_SubDRef  subd_ref,
const ON_SimpleArray< ON_SubDEdgePtr > &  edge_chain 
)

Parameters: persistent_subd_id - [in] If this edge chain needs to persist in a 3dm archive, then persistent_subd_id should identify the subd in its current context. If that context is an ONX_Model, then the persistent id is the ON_ModelGeometryComponent.Id(). If that context is a CRhinoDoc, then the persistent id is CRhinoObject.ModelObjectId().

◆ ON_SubDEdgeChainCurve() [5/5]

ON_SubDEdgeChainCurve::ON_SubDEdgeChainCurve ( ON_UUID  persistent_subd_id,
const ON_SubD subd,
const ON_SimpleArray< ON_SubDEdgePtr > &  edge_chain 
)

Parameters: persistent_subd_id - [in] If this edge chain needs to persist in a 3dm archive, then persistent_subd_id should identify the subd in its current context. If that context is an ONX_Model, then the persistent id is the ON_ModelGeometryComponent.Id(). If that context is a CRhinoDoc, then the persistent id is CRhinoObject.ModelObjectId().

Member Function Documentation

◆ ChangeClosedChainStart()

bool ON_SubDEdgeChainCurve::ChangeClosedChainStart ( unsigned int  edge_index)

◆ ChangeClosedCurveSeam()

bool ON_SubDEdgeChainCurve::ChangeClosedCurveSeam ( double  t)
overridevirtual

Description: If this curve is closed, then modify it so that the start/end point is at curve parameter t. Parameters: t - [in] curve parameter of new start/end point. The returned curves domain will start at t. Returns: true if successful.

Reimplemented from ON_Curve.

◆ ChangeDimension()

bool ON_SubDEdgeChainCurve::ChangeDimension ( int  desired_dimension)
overridevirtual

Description: Change the dimension of a curve. Parameters: desired_dimension - [in] Returns: true if the curve's dimension was already desired_dimension or if the curve's dimension was successfully changed to desired_dimension.

Reimplemented from ON_Curve.

◆ ClearBoundingBox()

void ON_SubDEdgeChainCurve::ClearBoundingBox ( )
overridevirtual

Description: Some objects cache bounding box information. If you modify an object, then call ClearBoundingBox() to inform the object that any cached bounding boxes are invalid.

Remarks: Generally, ClearBoundingBox() overrides simply invalidate a cached bounding box and then wait for a call to GetBBox() before recomputing the bounding box.

The default implementation does nothing.

Reimplemented from ON_Geometry.

◆ DataCRC()

ON__UINT32 ON_SubDEdgeChainCurve::DataCRC ( ON__UINT32  current_remainder) const
overridevirtual

Description: Returns a CRC calculated from the information that defines the object. This CRC can be used as a quick way to see if two objects are not identical. Parameters: current_remainder - [in]; Returns: CRC of the information the defines the object.

Reimplemented from ON_Object.

◆ Degree()

int ON_SubDEdgeChainCurve::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_SubDEdgeChainCurve::DestroyRuntimeCache ( bool  bDelete = true)
overridevirtual

virtual ON_Object::DestroyRuntimeCache override

Reimplemented from ON_Curve.

◆ Dimension()

int ON_SubDEdgeChainCurve::Dimension ( ) const
overridevirtual

ON_Geometry virtual interface.

Reimplemented from ON_Geometry.

◆ Domain()

ON_Interval ON_SubDEdgeChainCurve::Domain ( ) const
overridevirtual

ON_Curve virtual interface.

Implements ON_Curve.

◆ Dump()

void ON_SubDEdgeChainCurve::Dump ( ON_TextLog ) const
overridevirtual

Description: Creates a text dump of the object. Remarks: Dump() is intended for debugging and is not suitable for creating high quality text descriptions of an object.

The default implementations of this virtual function prints the class's name.

Reimplemented from ON_Object.

◆ EdgeChain()

const ON_SubDEdgeChain& ON_SubDEdgeChainCurve::EdgeChain ( ) const

◆ EdgeCount()

unsigned int ON_SubDEdgeChainCurve::EdgeCount ( ) const

default is ok ///< class ON_CurveTree* CreateCurveTree() const override;

ON_SubDEdgeChainCurve additions

◆ EdgeIndexFromParameter()

unsigned ON_SubDEdgeChainCurve::EdgeIndexFromParameter ( double  t,
double *  normalized_edge_parameter 
) const

◆ EdgePtr()

const ON_SubDEdgePtr ON_SubDEdgeChainCurve::EdgePtr ( unsigned int  i) const

◆ EdgePtrFromParameter()

const ON_SubDEdgePtr ON_SubDEdgeChainCurve::EdgePtrFromParameter ( double  t,
double *  normalized_edge_parameter 
) const

◆ EdgeSurfaceCurve()

ON_NurbsCurve* ON_SubDEdgeChainCurve::EdgeSurfaceCurve ( ON_NurbsCurve destination) const

◆ Evaluate()

bool ON_SubDEdgeChainCurve::Evaluate ( double  t,
int  der_count,
int  v_stride,
double *  v,
int  side = 0,
int *  hint = 0 
) const
overridevirtual

Description: This evaluator actually does all the work. The other ON_Curve evaluation tools call this virtual function. Parameters: t - [in] evaluation parameter ( usually in Domain() ). der_count - [in] (>=0) number of derivatives to evaluate v_stride - [in] (>=Dimension()) stride to use for the v[] array v - [out] array of length (der_count+1)*v_stride curve(t) is returned in (v[0],...,v[m_dim-1]), curve'(t) is retuned in (v[v_stride],...,v[v_stride+m_dim-1]), curve"(t) is retuned in (v[2*v_stride],...,v[2*v_stride+m_dim-1]), etc. side - [in] optional - determines which side to evaluate from =0 default <0 to evaluate from below, >0 to evaluate from above hint - [in/out] optional evaluation hint used to speed repeated evaluations Returns: false if unable to evaluate. See Also: ON_Curve::EvPoint ON_Curve::Ev1Der ON_Curve::Ev2Der

Implements ON_Curve.

◆ Extend()

bool ON_SubDEdgeChainCurve::Extend ( const ON_Interval domain)
overridevirtual

Description: Pure virtual function. Default returns false. Where possible, analytically extends curve to include domain. Parameters: domain - [in] if domain is not included in curve domain, curve will be extended so that its domain includes domain.
Will not work if curve is closed. Original curve is identical to the restriction of the resulting curve to the original curve domain, Returns: true if successful.

Reimplemented from ON_Curve.

◆ GetBBox()

bool ON_SubDEdgeChainCurve::GetBBox ( double *  boxmin,
double *  boxmax,
bool  bGrowBox = false 
) const
overridevirtual

Description: This is the virtual function that actually calculates axis aligned bounding boxes. Parameters: boxmin - [in/out] array of Dimension() doubles boxmax - [in/out] array of Dimension() doubles bGrowBox - [in] (default=false) If true, then the union of the input bbox and the object's bounding box is returned in bbox.
If false, the object's bounding box is returned in bbox. Returns: true if object has bounding box and calculation was successful

Reimplemented from ON_Geometry.

◆ GetClosestPoint()

bool ON_SubDEdgeChainCurve::GetClosestPoint ( const ON_3dPoint test_point,
double *  t,
double  maximum_distance = 0.0,
const ON_Interval sub_domain = nullptr 
) const
overridevirtual

Find parameter of the point on a curve that is closest to test_point. If the maximum_distance parameter is > 0, then only points whose distance to the given point is <= maximum_distance will be returned. Using a positive value of maximum_distance can substantially speed up the search. If the sub_domain parameter is not nullptr, then the search is restricted to the specified portion of the curve.

true if returned if the search is successful. false is returned if the search fails.

Parameters
tparameter of local closest point returned here
maximum_distancemaximum_distance
sub_domainsub_domain

Reimplemented from ON_Curve.

◆ GetCurveParameterFromNurbFormParameter()

bool ON_SubDEdgeChainCurve::GetCurveParameterFromNurbFormParameter ( double  nurbs_t,
double *  curve_t 
) const
overridevirtual

Description: Convert a NURBS curve parameter to a curve parameter

Parameters: nurbs_t - [in] nurbs form parameter curve_t - [out] curve parameter

Remarks: If GetNurbForm returns 2, this function converts the curve parameter to the NURBS curve parameter.

See Also: ON_Curve::GetNurbForm, ON_Curve::GetNurbFormParameterFromCurveParameter

Reimplemented from ON_Curve.

◆ GetLength()

bool ON_SubDEdgeChainCurve::GetLength ( double *  length,
double  fractional_tolerance = 1.0e-8,
const ON_Interval sub_domain = nullptr 
) const
overridevirtual

Description: Get the length of the curve. Parameters: length - [out] length returned here. fractional_tolerance - [in] desired fractional precision. fabs(("exact" length from start to t) - arc_length)/arc_length <= fractional_tolerance sub_domain - [in] If not nullptr, the calculation is performed on the specified sub-domain of the curve (must be non-decreasing) Returns: true if returned if the length calculation is successful. false is returned if the length is not calculated. Remarks: The arc length will be computed so that (returned length - real length)/(real length) <= fractional_tolerance More simply, if you want N significant figures in the answer, set the fractional_tolerance to 1.0e-N. For "nice" curves, 1.0e-8 works fine. For very high degree NURBS and NURBS with bad parameterizations, use larger values of fractional_tolerance.

Reimplemented from ON_Curve.

◆ GetLocalClosestPoint()

bool ON_SubDEdgeChainCurve::GetLocalClosestPoint ( const ON_3dPoint test_point,
double  seed_parameter,
double *  t,
const ON_Interval sub_domain = 0 
) const
overridevirtual

Find parameter of the point on a curve that is locally closest to the test_point. The search for a local close point starts at seed_parameter. If the sub_domain parameter is not nullptr, then the search is restricted to the specified portion of the curve.

true if returned if the search is successful. false is returned if the search fails.

Reimplemented from ON_Curve.

◆ GetNextDiscontinuity()

bool ON_SubDEdgeChainCurve::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. t0 - [in] Search begins at t0. If there is a discontinuity at t0, it will be ignored. This makes it possible to repeatedly call GetNextDiscontinuity and step through the discontinuities. t1 - [in] (t0 != t1) If there is a discontinuity at t1 is will be ingored unless c is a locus discontinuity type and t1 is at the start or end of the curve. t - [out] if a discontinuity is found, then *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. A value of 0 means teh curve is not closed, a locus discontinuity test was applied, and t1 is at the start of end of the curve. If 'c', the type of continuity to test for is ON::continuity::Gsmooth_continuous and the curvature changes from curved to 0 or 0 to curved and there is no tangency kink dtype is returns 3 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. If K0 and K1 are curvatures evaluated from above and below and |K0 - K1| > curvature_tolerance, then a curvature discontinuity is reported. Returns: Parametric continuity tests c = (C0_continuous, ..., G2_continuous):

true if a parametric discontinuity was found strictly between t0 and t1. Note well that all curves are parametrically continuous at the ends of their domains.

Locus continuity tests c = (C0_locus_continuous, ...,G2_locus_continuous):

true if a locus discontinuity was found strictly between t0 and t1 or at t1 is the at the end of a curve. Note well that all open curves (IsClosed()=false) are locus discontinuous at the ends of their domains. All closed curves (IsClosed()=true) are at least C0_locus_continuous at the ends of their domains.

Reimplemented from ON_Curve.

◆ GetNormalizedArcLengthPoint()

bool ON_SubDEdgeChainCurve::GetNormalizedArcLengthPoint ( double  s,
double *  t,
double  fractional_tolerance = 1.0e-8,
const ON_Interval sub_domain = nullptr 
) const
overridevirtual

Description: Get the parameter of the point on the curve that is a prescribed arc length from the start of the curve. Parameters: s - [in] normalized arc length parameter. E.g., 0 = start of curve, 1/2 = midpoint of curve, 1 = end of curve. t - [out] parameter such that the length of the curve from its start to t is arc_length. fractional_tolerance - [in] desired fractional precision. fabs(("exact" length from start to t) - arc_length)/arc_length <= fractional_tolerance sub_domain - [in] If not nullptr, the calculation is performed on the specified sub-domain of the curve. Returns: true if successful

Reimplemented from ON_Curve.

◆ GetNormalizedArcLengthPoints()

bool ON_SubDEdgeChainCurve::GetNormalizedArcLengthPoints ( int  count,
const double *  s,
double *  t,
double  absolute_tolerance = 0.0,
double  fractional_tolerance = 1.0e-8,
const ON_Interval sub_domain = nullptr 
) const
overridevirtual

Description: Get the parameter of the point on the curve that is a prescribed arc length from the start of the curve. Parameters: count - [in] number of parameters in s. s - [in] array of normalized arc length parameters. E.g., 0 = start of curve, 1/2 = midpoint of curve, 1 = end of curve. t - [out] array of curve parameters such that the length of the curve from its start to t[i] is s[i]*curve_length. absolute_tolerance - [in] if absolute_tolerance > 0, then the difference between (s[i+1]-s[i])*curve_length and the length of the curve segment from t[i] to t[i+1] will be <= absolute_tolerance. fractional_tolerance - [in] desired fractional precision for each segment. fabs("true" length - actual length)/(actual length) <= fractional_tolerance sub_domain - [in] If not nullptr, the calculation is performed on the specified sub-domain of the curve. A 0.0 s value corresponds to sub_domain->Min() and a 1.0 s value corresponds to sub_domain->Max(). Returns: true if successful

Reimplemented from ON_Curve.

◆ GetNurbForm()

int ON_SubDEdgeChainCurve::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

Reimplemented from ON_Curve.

◆ GetParameterTolerance()

bool ON_SubDEdgeChainCurve::GetParameterTolerance ( double  t,
double *  tminus,
double *  tplus 
) const
overridevirtual

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

Parameters
treturns tminus < tplus: parameters tminus <= s <= tplus [IN] t = parameter in domain
[out]tminus[OUT] tminus
[out]tplus[OUT] tplus

Reimplemented from ON_Curve.

◆ GetSpanVector()

bool ON_SubDEdgeChainCurve::GetSpanVector ( double *  span_parameters) const
overridevirtual

Description: Get number of parameters of "knots". Parameters: span_parameters - [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.

◆ GetSpanVectorIndex()

bool ON_SubDEdgeChainCurve::GetSpanVectorIndex ( double  t,
int  side,
int *  span_vector_index,
ON_Interval span_domain 
) const
overridevirtual

If t is in the domain of the curve, GetSpanVectorIndex() returns the span vector index "i" such that span_vector[i] <= t <= span_vector[i+1]. The "side" parameter determines which span is selected when t is at the end of a span.

Parameters
[in]t[IN] t = evaluation parameter
[in]side[IN] side 0 = default, -1 = from below, +1 = from above
[out]span_vector_index[OUT] span vector index
[out]span_domain[OUT] domain of the span containing "t"

Reimplemented from ON_Curve.

◆ GetTightBoundingBox()

bool ON_SubDEdgeChainCurve::GetTightBoundingBox ( class ON_BoundingBox tight_bbox,
bool  bGrowBox = false,
const class ON_Xform xform = nullptr 
) const
overridevirtual

virtual ON_Geometry GetTightBoundingBox override

Reimplemented from ON_Curve.

◆ HasNurbForm()

int ON_SubDEdgeChainCurve::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.

◆ IntersectSelf()

int ON_SubDEdgeChainCurve::IntersectSelf ( ON_SimpleArray< ON_X_EVENT > &  x,
double  intersection_tolerance = 0.0,
const ON_Interval curve_domain = 0 
) const
overridevirtual

Description: Find curve's self intersection points. Parameters: x - [out] Intersection events are appended to this array. Only intersection points are reported. Overlaps are not reported. intersection_tolerance - [in] curve_domain - [in] optional restriction Returns: Number of intersection events appended to x. Remarks: Overlaps are not reported.

Reimplemented from ON_Curve.

◆ IsArc()

bool ON_SubDEdgeChainCurve::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.

Reimplemented from ON_Curve.

◆ IsClosed()

bool ON_SubDEdgeChainCurve::IsClosed ( ) const
overridevirtual

Description: Test a curve to see if it is closed. Returns: true if the curve is closed.

Reimplemented from ON_Curve.

◆ IsContinuous()

bool ON_SubDEdgeChainCurve::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] type of continuity to test for. Read ON::continuity comments for details. 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.

Reimplemented from ON_Curve.

◆ IsDeformable()

bool ON_SubDEdgeChainCurve::IsDeformable ( ) const
overridevirtual

Returns: True if object can be accuratly modified with "squishy" transformations like projections, shears, an non-uniform scaling. See Also: ON_Geometry::MakeDeformable();

Reimplemented from ON_Geometry.

◆ IsEllipse()

bool ON_SubDEdgeChainCurve::IsEllipse ( const ON_Plane plane = nullptr,
ON_Ellipse ellipse = nullptr,
double  tolerance = ON_ZERO_TOLERANCE 
) const
overridevirtual

Reimplemented from ON_Curve.

◆ IsInPlane()

bool ON_SubDEdgeChainCurve::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.

Implements ON_Curve.

◆ IsLinear()

bool ON_SubDEdgeChainCurve::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.

Reimplemented from ON_Curve.

◆ IsMorphable()

bool ON_SubDEdgeChainCurve::IsMorphable ( ) const
overridevirtual

Returns: True if the object can be morphed by calling Morph(). See Also: ON_Geometry::Morph

Reimplemented from ON_Geometry.

◆ IsPeriodic()

bool ON_SubDEdgeChainCurve::IsPeriodic ( ) const
overridevirtual

Description: Test a curve to see if it is periodic. Returns: true if the curve is closed and at least C2 at the start/end.

Reimplemented from ON_Curve.

◆ IsPlanar()

bool ON_SubDEdgeChainCurve::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.

Reimplemented from ON_Curve.

◆ IsPolyline()

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

Description: Several types of ON_Curve can have the form of a polyline including a degree 1 ON_NurbsCurve, an ON_PolylineCurve, and an ON_PolyCurve all of whose segments are some form of polyline. IsPolyline tests a curve to see if it can be represented as a polyline. Parameters: pline_points - [out] if not nullptr and true is returned, then the points of the polyline form are returned here. t - [out] if not nullptr and true is returned, then the parameters of the polyline points are returned here. Returns: @untitled table 0 curve is not some form of a polyline >=2 number of points in polyline form

Reimplemented from ON_Curve.

◆ IsShort()

bool ON_SubDEdgeChainCurve::IsShort ( double  tolerance,
const ON_Interval sub_domain = 0,
double *  length_estimate = 0 
) const
overridevirtual

Description: Used to quickly find short curves. Parameters: tolerance - [in] (>=0) sub_domain - [in] If not nullptr, the test is performed on the interval that is the intersection of sub_domain with Domain(). Returns: True if the length of the curve is <= tolerance. Remarks: Faster than calling Length() and testing the result.

Reimplemented from ON_Curve.

◆ IsValid()

bool ON_SubDEdgeChainCurve::IsValid ( class ON_TextLog text_log = nullptr) const
overridevirtual

ON_Object virtual interface.

Reimplemented from ON_Geometry.

◆ LoftCurve()

ON_NurbsCurve* ON_SubDEdgeChainCurve::LoftCurve ( ON_NurbsCurve destination) const

Description: Get a NURBS curve that is appropriate for lofting SubDs. Parameters: destination - [in] If not nullptr, then the curve is created in this instance. Returns: A pointer to the curve or nullptr if the edge is not valid.

◆ Morph()

bool ON_SubDEdgeChainCurve::Morph ( const class ON_SpaceMorph morph)
overridevirtual

Description: Apply the space morph to this geometry. Parameters: morph - [in] Returns: True is successful. If false is returned, the object may be damaged and should be discarded. See Also: ON_Geometry::IsMorphable

Reimplemented from ON_Geometry.

◆ operator=()

ON_SubDEdgeChainCurve& ON_SubDEdgeChainCurve::operator= ( const ON_SubDEdgeChainCurve )
default

◆ PersistentSubDId()

const ON_UUID ON_SubDEdgeChainCurve::PersistentSubDId ( ) const

◆ Read()

bool ON_SubDEdgeChainCurve::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.

Reimplemented from ON_Object.

◆ RemoveShortSegments()

bool ON_SubDEdgeChainCurve::RemoveShortSegments ( double  tolerance,
bool  bRemoveShortSegments = true 
)
overridevirtual

Description: Looks for segments that are shorter than tolerance that can be removed. If bRemoveShortSegments is true, then the short segments are removed. Does not change the domain, but it will change the relative parameterization. Parameters: tolerance - [in] bRemoveShortSegments - [in] If true, then short segments are removed. Returns: True if removable short segments can were found. False if no removable short segments can were found.

Reimplemented from ON_Curve.

◆ Reverse()

bool ON_SubDEdgeChainCurve::Reverse ( )
overridevirtual

Description: Reverse the direction of the curve. Returns: true if curve was reversed. Remarks: If reveresed, the domain changes from [a,b] to [-b,-a]

Implements ON_Curve.

◆ SetDomain()

bool ON_SubDEdgeChainCurve::SetDomain ( double  t0,
double  t1 
)
overridevirtual

Description: Set the domain of the curve Parameters: t0 - [in] t1 - [in] new domain will be [t0,t1] Returns: true if successful.

Reimplemented from ON_Curve.

◆ SetEdgeChain() [1/3]

unsigned int ON_SubDEdgeChainCurve::SetEdgeChain ( const ON_SubDEdgeChain edge_chain)

◆ SetEdgeChain() [2/3]

unsigned int ON_SubDEdgeChainCurve::SetEdgeChain ( ON_UUID  persistent_subd_id,
const ON_SubD subd,
const ON_SimpleArray< ON_SubDEdgePtr > &  edge_chain 
)

Parameters: persistent_subd_id - [in] If this edge chain needs to persist in a 3dm archive, then persistent_subd_id should identify the subd in its current context. If that context is an ONX_Model, then the persistent id is the ON_ModelGeometryComponent.Id(). If that context is a CRhinoDoc, then the persistent id is CRhinoObject.ModelObjectId().

◆ SetEdgeChain() [3/3]

unsigned int ON_SubDEdgeChainCurve::SetEdgeChain ( ON_UUID  persistent_subd_id,
const ON_SubDRef  subd_ref,
const ON_SimpleArray< ON_SubDEdgePtr > &  edge_chain 
)

Parameters: persistent_subd_id - [in] If this edge chain needs to persist in a 3dm archive, then persistent_subd_id should identify the subd in its current context. If that context is an ONX_Model, then the persistent id is the ON_ModelGeometryComponent.Id(). If that context is a CRhinoDoc, then the persistent id is CRhinoObject.ModelObjectId().

◆ SetEndPoint()

bool ON_SubDEdgeChainCurve::SetEndPoint ( ON_3dPoint  end_point)
overridevirtual

Description: Force the curve to end at a specified point. Parameters: end_point - [in] Returns: true if successful. Remarks: Some end points cannot be moved. Be sure to check return code. ON_Curve::SetEndPoint() returns true if end_point is the same as the end of the curve, false otherwise. See Also: ON_Curve::SetStartPoint ON_Curve::PointAtStart ON_Curve::PointAtEnd

Reimplemented from ON_Curve.

◆ SetStartPoint()

bool ON_SubDEdgeChainCurve::SetStartPoint ( ON_3dPoint  start_point)
overridevirtual

Description: Force the curve to start at a specified point. Parameters: start_point - [in] Returns: true if successful. Remarks: Some end points cannot be moved. Be sure to check return code. ON_Curve::SetStartPoint() returns true if start_point is the same as the start of the curve, false otherwise. See Also: ON_Curve::SetEndPoint ON_Curve::PointAtStart ON_Curve::PointAtEnd

Reimplemented from ON_Curve.

◆ SizeOf()

unsigned int ON_SubDEdgeChainCurve::SizeOf ( ) const
overridevirtual

virtual ON_Object::SizeOf override

Reimplemented from ON_Curve.

◆ SpanCount()

int ON_SubDEdgeChainCurve::SpanCount ( ) const
overridevirtual

Description: Get number of nonempty smooth (c-infinity) spans in curve Returns: Number of nonempty smooth (c-infinity) spans.

Implements ON_Curve.

◆ Split()

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

Description: Splits (divides) the curve at the specified parameter.
The parameter must be in the interior of the curve's domain. The pointers passed to Split must either be nullptr or point to an ON_Curve object of the same type. If the pointer is nullptr, then a curve will be created in Split(). You may pass "this" as left_side or right_side. Parameters: t - [in] parameter to split the curve at in the interval returned by Domain(). left_side - [out] left portion of curve returned here right_side - [out] right portion of curve returned here Returns: true - The curve was split into two pieces.
false - The curve could not be split. For example if the parameter is too close to an endpoint.

Example: For example, if crv were an ON_NurbsCurve, then

  ON_NurbsCurve right_side;
  crv.Split( crv.Domain().Mid() &crv, &right_side );

would split crv at the parametric midpoint, put the left side in crv, and return the right side in right_side.

Reimplemented from ON_Curve.

◆ SubD()

const ON_SubD& ON_SubDEdgeChainCurve::SubD ( ) const

◆ SubDRef()

ON_SubDRef ON_SubDEdgeChainCurve::SubDRef ( ) const

◆ Transform()

bool ON_SubDEdgeChainCurve::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_SubDEdgeChainCurve::Trim ( const ON_Interval domain)
overridevirtual

Description: Removes portions of the curve outside the specified interval. Parameters: domain - [in] interval of the curve to keep. Portions of the curve before curve(domain[0]) and after curve(domain[1]) are removed. Returns: true if successful.

Reimplemented from ON_Curve.

◆ Write()

bool ON_SubDEdgeChainCurve::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.

Reimplemented from ON_Object.