Rhino C++ API
8.10
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#include <opennurbs_nurbssurface.h>
Public Member Functions | |
ON_NurbsCage () | |
ON_NurbsCage (const ON_3dPoint *box_corners, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) | |
ON_NurbsCage (const ON_BezierCage &src) | |
ON_NurbsCage (const ON_BoundingBox &bbox, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) | |
ON_NurbsCage (const ON_NurbsCage &src) | |
ON_NurbsCage (int dim, bool is_rat, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) | |
~ON_NurbsCage () | |
bool | ChangeDimension (int desired_dimension) |
bool | ClampEnd (int dir, int end) |
bool | Create (const ON_3dPoint *box_corners, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) |
bool | Create (const ON_BoundingBox &bbox, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) |
bool | Create (int dim, bool is_rat, int order0, int order1, int order2, int cv_count0, int cv_count1, int cv_count2) |
double * | CV (int i, int j, int k) const |
int | CVCount (int) const |
int | CVCount (void) const |
int | CVSize () const |
ON::point_style | CVStyle () const |
ON__UINT32 | DataCRC (ON__UINT32 current_remainder) const override |
virtual ON_Object::DataCRC override More... | |
int | Degree (int dir) const |
void | Destroy () |
void | DestroyRuntimeCache (bool bDelete=true) override |
int | Dimension () const override |
ON_Interval | Domain (int) const |
void | Dump (ON_TextLog &text_log) const override |
void | EmergencyDestroy () |
call if memory used by ON_NurbsCage becomes invalid More... | |
bool | Evaluate (double r, double s, double t, int der_count, int v_stride, double *v, int side=0, int *hint=0) const |
bool | Extend (int dir, const ON_Interval &domain) |
bool | GetBBox (double *boxmin, double *boxmax, bool bGrowBox=false) const override |
virtual ON_Geometry GetBBox override More... | |
bool | GetCV (int i, int j, int k, ON::point_style, double *) const |
bool | GetCV (int i, int j, int k, ON_3dPoint &) const |
bool | GetCV (int i, int j, int k, ON_4dPoint &) const |
bool | GetSpanVector (int dir, double *span_vector) 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... | |
double | GrevilleAbcissa (int dir, int gindex) const |
bool | IncreaseDegree (int dir, int desired_degree) |
bool | InsertKnot (int dir, double knot_value, int knot_multiplicity=1) |
bool | IsClosed (int) const |
bool | IsDeformable () const override |
bool | IsMorphable () const override |
ON_NurbsSurface * | IsoSurface (int dir, double c, ON_NurbsSurface *srf=0) const |
bool | IsParallelogram (double tolerance) const |
bool | IsPeriodic (int) const |
are duplicates of first degree many CVs.) More... | |
bool | IsRational () const |
bool | IsSingular (int) const |
bool | IsValid (class ON_TextLog *text_log=nullptr) const override |
double | Knot (int dir, int knot_index) const |
int | KnotCount (int dir) const |
bool | MakeDeformable () override |
bool | MakeNonRational () |
bool | MakeRational () |
bool | Morph (const ON_SpaceMorph &morph) override |
ON::object_type | ObjectType () const override |
ON_NurbsCage & | operator= (const ON_BezierCage &src) |
ON_NurbsCage & | operator= (const ON_NurbsCage &src) |
int | Order (int dir) const |
ON_3dPoint | PointAt (double r, double s, double t) const |
ON_3dPoint | PointAt (ON_3dPoint rst) const |
bool | Read (ON_BinaryArchive &archive) override |
bool | ReserveCVCapacity (int cv_capacity) |
Tools for managing CV and knot memory. More... | |
bool | ReserveKnotCapacity (int dir, int cv_capacity) |
bool | Reverse (int dir) |
bool | SetCV (int i, int j, int k, const ON_3dPoint &point) |
bool | SetCV (int i, int j, int k, const ON_4dPoint &hpoint) |
bool | SetCV (int i, int j, int k, ON::point_style, const double *) |
bool | SetKnot (int dir, int knot_index, double knot_value) |
bool | SetWeight (int i, int j, int k, double w) |
unsigned int | SizeOf () const override |
int | SpanCount (int dir) const |
bool | Transform (const ON_Xform &xform) override |
bool | Transpose (int dir0, int dir1) |
bool | Trim (int dir, const ON_Interval &domain) |
double | Weight (int i, int j, int k) const |
bool | Write (ON_BinaryArchive &archive) const override |
bool | ZeroCVs () |
zeros control vertices and, if rational, sets weights to 1 More... | |
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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 |
virtual bool | EvaluatePoint (const class ON_ObjRef &objref, ON_3dPoint &P) 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 | Morph (const class ON_SpaceMorph &morph) |
ON_Geometry & | operator= (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) |
const ON_BoundingBox | TightBoundingBox () const |
bool | Translate (const ON_3dVector &translation_vector) |
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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_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 | 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_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) |
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 |
Public Attributes | |
double * | m_cv |
int | m_cv_capacity |
int | m_cv_count [3] |
int | m_cv_stride [3] |
int | m_dim |
Implementation. More... | |
bool | m_is_rat |
double * | m_knot [3] |
int | m_knot_capacity [3] |
int | m_order [3] |
Additional Inherited Members | |
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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 } |
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const static ON_Geometry | Unset |
ON_NurbsCage::ON_NurbsCage | ( | ) |
ON_NurbsCage::ON_NurbsCage | ( | int | dim, |
bool | is_rat, | ||
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
ON_NurbsCage::ON_NurbsCage | ( | const ON_BoundingBox & | bbox, |
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
ON_NurbsCage::ON_NurbsCage | ( | const ON_3dPoint * | box_corners, |
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
box_corners | array of 8 3d points |
ON_NurbsCage::ON_NurbsCage | ( | const ON_BezierCage & | src | ) |
ON_NurbsCage::~ON_NurbsCage | ( | ) |
ON_NurbsCage::ON_NurbsCage | ( | const ON_NurbsCage & | src | ) |
bool ON_NurbsCage::ChangeDimension | ( | int | desired_dimension | ) |
desired_dimension | desired_dimension |
bool ON_NurbsCage::ClampEnd | ( | int | dir, |
int | end | ||
) |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
end | 0 = clamp start, 1 = clamp end, 2 = clamp start and end |
bool ON_NurbsCage::Create | ( | const ON_3dPoint * | box_corners, |
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
Description: Create a nurbs volume from a 3d box Parameters: box_corners - [in] 8 points that define corners of the volume
7______________6 |\ |\ | \ | \ | \ _____________\ | 4 | 5 | | | | | | | | 3---|----------2 | \ | \ | \ |t \ | s \ | \ | \0_____________\1 r
bool ON_NurbsCage::Create | ( | const ON_BoundingBox & | bbox, |
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
Description: Create a Nurbs volume with corners defined by a bounding box. Parameters: box_corners - [in] 8 points that define corners of the volume
7______________6 |\ |\ | \ | \ | \ _____________\ | 4 | 5 | | | | | | | | 3---|----------2 | \ | \ | \ |z \ | y \ | \ | \0_____________\1 x
bool ON_NurbsCage::Create | ( | int | dim, |
bool | is_rat, | ||
int | order0, | ||
int | order1, | ||
int | order2, | ||
int | cv_count0, | ||
int | cv_count1, | ||
int | cv_count2 | ||
) |
double* ON_NurbsCage::CV | ( | int | i, |
int | j, | ||
int | k | ||
) | const |
Description: Expert user function to get a pointer to control vertex memory. If you are not an expert user, please use ON_NurbsCage::GetCV( ON_3dPoint& ) or ON_NurbsCage::GetCV( ON_4dPoint& ). Parameters: cv_index0 - [in] (0 <= cv_index0 < m_order[0]) cv_index1 - [in] (0 <= cv_index1 < m_order[1]) Returns: Pointer to control vertex. Remarks: If the Nurbs surface is rational, the format of the returned array is a homogeneous rational point with length m_dim+1. If the Nurbs surface is not rational, the format of the returned array is a nonrational euclidean point with length m_dim. See Also ON_NurbsCage::CVStyle ON_NurbsCage::GetCV ON_NurbsCage::Weight
int ON_NurbsCage::CVCount | ( | int | ) | const |
int ON_NurbsCage::CVCount | ( | void | ) | const |
int ON_NurbsCage::CVSize | ( | ) | const |
ON::point_style ON_NurbsCage::CVStyle | ( | ) | const |
Description: Returns the style of control vertices in the m_cv array. Returns: @untitled table ON::not_rational m_is_rat is false ON::homogeneous_rational m_is_rat is true
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overridevirtual |
virtual ON_Object::DataCRC override
Reimplemented from ON_Object.
int ON_NurbsCage::Degree | ( | int | dir | ) | const |
void ON_NurbsCage::Destroy | ( | ) |
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overridevirtual |
Description: Overrides the pure virtual ON_Object::DestroyRuntimeCache function. Saves the definition of this class in serial binary form that can be read by ON_BezierVolue::Read. Parameters: bDelete - [in] if true, the cache is deleted. If false, the pointers to the cache are set to zero; this is done when the cache memory was allocated from a pool that has been destroyed and an attempt to free the memory would result in a crash. Returns: True if successful.
Reimplemented from ON_Object.
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overridevirtual |
Description: Overrides virtual ON_Geometry::Dimension function. Gets a tight bounding box with respect to the coordinate system specified by the frame parameter. Parameters: bbox - [in/out] bGrowBox - [in] If true, the input bbox is grown to include this object's bounding box. frame - [in] if not null, this specifies the coordinate system frame. Returns: True if successful.
Reimplemented from ON_Geometry.
ON_Interval ON_NurbsCage::Domain | ( | int | ) | const |
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overridevirtual |
Description: Overrides the pure virtual ON_Object::Dump function. Parameters: text_log - [in] A listing of the values of the members.
Reimplemented from ON_Object.
void ON_NurbsCage::EmergencyDestroy | ( | ) |
call if memory used by ON_NurbsCage becomes invalid
bool ON_NurbsCage::Evaluate | ( | double | r, |
double | s, | ||
double | t, | ||
int | der_count, | ||
int | v_stride, | ||
double * | v, | ||
int | side = 0 , |
||
int * | hint = 0 |
||
) | const |
Description: Evaluate the NURBS cage Parameters: r - [in] s - [in] t - [in] (r,s,t) = evaluation parameters der_count - [in] (>= 0) v_stride - [in] (>= m_dim) v - [out] An array of length v_stride*(der_count+1)(der_count+2)*(der_count+3)/6. The evaluation results are stored in this array.
P = v[0],...,v[m_dim-1] Dr = v[v_stride],... Ds = v[2*v_stride],... Dt = v[3*v_stride],...
In general, Dr^i Ds^j Dt^k is returned in v[n],...,v[n+m_dim-1], where
d = (i+j+k) n = v_stride*( d*(d+1)*(d+2)/6 + (j+k)*(j+k+1)/2 + k)
side - [in] specifies the span to use for the evaluation when r, s, or t is at a knot value. 0 = default 1 = from upper NE quadrant 2 = from upper NW quadrant 3 = from upper SW quadrant 4 = from upper SE quadrant 5 = from lower NE quadrant 6 = from lower NW quadrant 7 = from lower SW quadrant 8 = from lower SE quadrant
hint - [in/out] If a bunch of evaluations will be performed that tend to occur in the same region, then hint[3] can be used to speed the search for the evaluation span. The input value is used as a search hint and the output value records the span used for that evaluation. Example:
int der_count = 2; int v_stride = dim; double v[v_stride*(der_count+1)*(der_count+2)*(der_count+3)/6]; int side = 0; int hint[3]; hint[0] = 0; hint[1] = 0; hint[2] = 0; bool rc = cage.Evaluate(r,s,t,der_count,v_stride,v,side,hint); ON_3dPoint P = v;
/ first order partial derivatives ON_3dVector Dr = v + v_stride; ON_3dVector Ds = v + 2*v_stride; ON_3dVector Dt = v + 3*v_stride;
/ second order partial derivatives ON_3dVector Drr = v + 4*v_stride; ON_3dVector Drs = v + 5*v_stride; ON_3dVector Drt = v + 6*v_stride; ON_3dVector Dss = v + 7*v_stride; ON_3dVector Dst = v + 8*v_stride; ON_3dVector Dtt = v + 8*v_stride;
Returns: True if successful See Also: ON_NurbsCage::PointAt
bool ON_NurbsCage::Extend | ( | int | dir, |
const ON_Interval & | domain | ||
) |
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overridevirtual |
virtual ON_Geometry GetBBox override
Reimplemented from ON_Geometry.
bool ON_NurbsCage::GetCV | ( | int | i, |
int | j, | ||
int | k, | ||
ON::point_style | , | ||
double * | |||
) | const |
i | get a single control vertex |
bool ON_NurbsCage::GetCV | ( | int | i, |
int | j, | ||
int | k, | ||
ON_3dPoint & | |||
) | const |
i | get a single control vertex |
bool ON_NurbsCage::GetCV | ( | int | i, |
int | j, | ||
int | k, | ||
ON_4dPoint & | |||
) | const |
i | get a single control vertex |
bool ON_NurbsCage::GetSpanVector | ( | int | dir, |
double * | span_vector | ||
) | const |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
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overridevirtual |
virtual ON_Geometry GetTightBoundingBox override
Reimplemented from ON_Geometry.
double ON_NurbsCage::GrevilleAbcissa | ( | int | dir, |
int | gindex | ||
) | const |
dir | dir |
gindex | index (0 <= index < CVCount(dir) |
bool ON_NurbsCage::IncreaseDegree | ( | int | dir, |
int | desired_degree | ||
) |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
desired_degree | desired_degree |
bool ON_NurbsCage::InsertKnot | ( | int | dir, |
double | knot_value, | ||
int | knot_multiplicity = 1 |
||
) |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
knot_value | value of knot |
knot_multiplicity | multiplicity of knot ( >= 1 and <= degree ) |
bool ON_NurbsCage::IsClosed | ( | int | ) | const |
CV = euclidean location of end CV, or cage is periodic.)
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overridevirtual |
Description: Overrides virtual ON_Geometry::IsDeformable function. Returns: True because a NURBS volume can be accurately modified with "squishy" transformations like projections, shears, an non-uniform scaling.
Reimplemented from ON_Geometry.
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overridevirtual |
Description: Overrides virtual ON_Geometry::IsMorphable function. Returns: True because NURBS volumes can be morphed by calling Morph().
Reimplemented from ON_Geometry.
ON_NurbsSurface* ON_NurbsCage::IsoSurface | ( | int | dir, |
double | c, | ||
ON_NurbsSurface * | srf = 0 |
||
) | const |
bool ON_NurbsCage::IsParallelogram | ( | double | tolerance | ) | const |
Returns: True if the cage is a parallelogram within the tolerance. This means the cage can be used as a starting point for cage deformations.
bool ON_NurbsCage::IsPeriodic | ( | int | ) | const |
are duplicates of first degree many CVs.)
bool ON_NurbsCage::IsRational | ( | ) | const |
bool ON_NurbsCage::IsSingular | ( | int | ) | const |
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overridevirtual |
Description: Tests an object to see if its data members are correctly initialized. Parameters: text_log - [in] if the object is not valid and text_log is not nullptr, then a brief english description of the reason the object is not valid is appended to the log. The information appended to text_log is suitable for low-level debugging purposes by programmers and is not intended to be useful as a high level user interface tool. Returns: @untitled table true object is valid false object is invalid, uninitialized, etc.
Reimplemented from ON_Geometry.
double ON_NurbsCage::Knot | ( | int | dir, |
int | knot_index | ||
) | const |
Parameters: dir - [in] 0 = "r", 1 = "s", 2 = "t" knot_index - [in] 0 <= knot_index < KnotCount(dir) Returns: Value of knot or ON_UNSET_VALUE if input parameters are not valid.
int ON_NurbsCage::KnotCount | ( | int | dir | ) | const |
dir | total number of knots in knot vector dir 0 = "r", 1 = "s", 2 = "t" |
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overridevirtual |
Description: Overrides virtual ON_Geometry::MakeDeformable function. Returns: True because NURBS volumes are deformable.
Reimplemented from ON_Geometry.
bool ON_NurbsCage::MakeNonRational | ( | ) |
bool ON_NurbsCage::MakeRational | ( | ) |
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override |
Description: Overrides virtual ON_Geometry::Morph function. Applies the space morph to the NURBS volume's control points. Parameters: morph - [in] Returns: True is successful.
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overridevirtual |
Description: Overrides the pure virtual ON_Object::ObjectType function. Saves the definition of this class in serial binary form that can be read by ON_BezierVolue::Read. Parameters: archive - [in] target archive Returns: True if successful.
Reimplemented from ON_Object.
ON_NurbsCage& ON_NurbsCage::operator= | ( | const ON_BezierCage & | src | ) |
ON_NurbsCage& ON_NurbsCage::operator= | ( | const ON_NurbsCage & | src | ) |
int ON_NurbsCage::Order | ( | int | dir | ) | const |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
ON_3dPoint ON_NurbsCage::PointAt | ( | double | r, |
double | s, | ||
double | t | ||
) | const |
Description: Evaluates bezier volume map. Parameters: rst - [in] Returns: Value of the nurbs volume map at (r,s,t).
ON_3dPoint ON_NurbsCage::PointAt | ( | ON_3dPoint | rst | ) | const |
Description: Evaluates bezier volume map. Parameters: rst - [in] Returns: Value of the nurbs volume map at (rst.x,rst.y,rst.z).
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overridevirtual |
Description: Overrides the pure virtual ON_Object::Read function. Reads the definition of this class from an archive previously saved by ON_BezierVolue::Write. Parameters: archive - [in] target archive Returns: True if successful.
Reimplemented from ON_Object.
bool ON_NurbsCage::ReserveCVCapacity | ( | int | cv_capacity | ) |
Tools for managing CV and knot memory.
Description: cv_capacity - [in] number of doubles to reserve
bool ON_NurbsCage::ReserveKnotCapacity | ( | int | dir, |
int | cv_capacity | ||
) |
bool ON_NurbsCage::Reverse | ( | int | dir | ) |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
bool ON_NurbsCage::SetCV | ( | int | i, |
int | j, | ||
int | k, | ||
const ON_3dPoint & | point | ||
) |
set a single control vertex If NURBS is rational, weight will be set to 1.
bool ON_NurbsCage::SetCV | ( | int | i, |
int | j, | ||
int | k, | ||
const ON_4dPoint & | hpoint | ||
) |
set a single control vertex value of control vertex If NURBS is not rational, euclidean location of homogeneous point will be used.
bool ON_NurbsCage::SetCV | ( | int | i, |
int | j, | ||
int | k, | ||
ON::point_style | , | ||
const double * | |||
) |
i | set a single control vertex |
bool ON_NurbsCage::SetKnot | ( | int | dir, |
int | knot_index, | ||
double | knot_value | ||
) |
Parameters: dir - [in] 0 = "r", 1 = "s", 2 = "t" knot_index - [in] 0 <= knot_index < KnotCount(dir) knot_value - [in] Returns: True if dir and knot_index parameters were valid and knot value was set.
bool ON_NurbsCage::SetWeight | ( | int | i, |
int | j, | ||
int | k, | ||
double | w | ||
) |
i | get value of control vertex weight |
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overridevirtual |
Description: Overrides the pure virtual ON_Object::SizeOf function. Returns: An estimate of the amount of memory used by the class and its members.
Reimplemented from ON_Object.
int ON_NurbsCage::SpanCount | ( | int | dir | ) | const |
dir | dir 0 = "r", 1 = "s", 2 = "t" |
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overridevirtual |
Description: Overrides virtual ON_Geometry::Transform function. Transforms NURBS volume. Parameters: xform - [in] Returns: true if successful.
Reimplemented from ON_Geometry.
bool ON_NurbsCage::Transpose | ( | int | dir0, |
int | dir1 | ||
) |
bool ON_NurbsCage::Trim | ( | int | dir, |
const ON_Interval & | domain | ||
) |
double ON_NurbsCage::Weight | ( | int | i, |
int | j, | ||
int | k | ||
) | const |
i | get value of control vertex weight |
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overridevirtual |
Description: Overrides the pure virtual ON_Object::Write function. Saves the definition of this class in serial binary form that can be read by ON_BezierVolue::Read. Parameters: archive - [in] target archive Returns: True if successful.
Reimplemented from ON_Object.
bool ON_NurbsCage::ZeroCVs | ( | ) |
zeros control vertices and, if rational, sets weights to 1
double* ON_NurbsCage::m_cv |
int ON_NurbsCage::m_cv_capacity |
int ON_NurbsCage::m_cv_count[3] |
int ON_NurbsCage::m_cv_stride[3] |
int ON_NurbsCage::m_dim |
Implementation.
NOTE: These members are left "public" so that expert users may efficiently create nurbs curves using the default constructor and borrow the knot and CV arrays from their native NURBS representation. No technical support will be provided for users who access these members directly. If you can't get your stuff to work, then use the constructor with the arguments and the SetKnot() and SetCV() functions to fill in the arrays.
bool ON_NurbsCage::m_is_rat |
double* ON_NurbsCage::m_knot[3] |
int ON_NurbsCage::m_knot_capacity[3] |
int ON_NurbsCage::m_order[3] |