Open CASCADE Technology  6.9.0
Public Member Functions

IGESGeom_SplineCurve Class Reference

Defines IGESSplineCurve, Type <112> Form <0> in package IGESGeom The parametric spline is a sequence of parametric polynomial segments. The curve could be of the type Linear, Quadratic, Cubic, Wilson-Fowler, Modified Wilson-Fowler, B-Spline. The N polynomial segments are delimited by the break points T(1), T(2), T(3), ..., T(N+1). More...

#include <IGESGeom_SplineCurve.hxx>

Inheritance diagram for IGESGeom_SplineCurve:
Inheritance graph
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Public Member Functions

 IGESGeom_SplineCurve ()
 
void Init (const Standard_Integer aType, const Standard_Integer aDegree, const Standard_Integer nbDimensions, const Handle< TColStd_HArray1OfReal > &allBreakPoints, const Handle< TColStd_HArray2OfReal > &allXPolynomials, const Handle< TColStd_HArray2OfReal > &allYPolynomials, const Handle< TColStd_HArray2OfReal > &allZPolynomials, const Handle< TColStd_HArray1OfReal > &allXvalues, const Handle< TColStd_HArray1OfReal > &allYvalues, const Handle< TColStd_HArray1OfReal > &allZvalues)
 This method is used to set the fields of the class SplineCurve. More...
 
Standard_Integer SplineType () const
 returns the type of Spline curve More...
 
Standard_Integer Degree () const
 returns the degree of the curve More...
 
Standard_Integer NbDimensions () const
 returns the number of dimensions 2 = Planar 3 = Non-planar More...
 
Standard_Integer NbSegments () const
 returns the number of segments More...
 
Standard_Real BreakPoint (const Standard_Integer Index) const
 returns breakpoint of piecewise polynomial raises exception if Index <= 0 or Index > NbSegments() + 1 More...
 
void XCoordPolynomial (const Standard_Integer Index, Standard_Real &AX, Standard_Real &BX, Standard_Real &CX, Standard_Real &DX) const
 returns X coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments() More...
 
void YCoordPolynomial (const Standard_Integer Index, Standard_Real &AY, Standard_Real &BY, Standard_Real &CY, Standard_Real &DY) const
 returns Y coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments() More...
 
void ZCoordPolynomial (const Standard_Integer Index, Standard_Real &AZ, Standard_Real &BZ, Standard_Real &CZ, Standard_Real &DZ) const
 returns Z coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments() More...
 
void XValues (Standard_Real &TPX0, Standard_Real &TPX1, Standard_Real &TPX2, Standard_Real &TPX3) const
 returns the value of X polynomial, the values of 1st, 2nd and 3rd derivatives of the X polynomial at the terminate point More...
 
void YValues (Standard_Real &TPY0, Standard_Real &TPY1, Standard_Real &TPY2, Standard_Real &TPY3) const
 returns the value of Y polynomial, the values of 1st, 2nd and 3rd derivatives of the Y polynomial at the termminate point More...
 
void ZValues (Standard_Real &TPZ0, Standard_Real &TPZ1, Standard_Real &TPZ2, Standard_Real &TPZ3) const
 returns the value of Z polynomial, the values of 1st, 2nd and 3rd derivatives of the Z polynomial at the termminate point More...
 
- Public Member Functions inherited from IGESData_IGESEntity
IGESData_IGESType IGESType () const
 gives IGES typing info (includes "Type" and "Form" data) More...
 
Standard_Integer TypeNumber () const
 gives IGES Type Number (often coupled with Form Number) More...
 
Standard_Integer FormNumber () const
 Returns the form number for that type of an IGES entity. The default form number is 0. More...
 
Handle< IGESData_IGESEntityDirFieldEntity (const Standard_Integer fieldnum) const
 Returns the Entity which has been recorded for a given Field Number, i.e. without any cast. Maps with : 3 : Structure 4 : LineFont 5 : LevelList 6 : View 7 : Transf(ormation Matrix) 8 : LabelDisplay 13 : Color. Other values give a null handle It can then be of any kind, while specific items have a Type. More...
 
Standard_Boolean HasStructure () const
 returns True if an IGESEntity is defined with a Structure (it is normally reserved for certain classes, such as Macros) More...
 
Handle< IGESData_IGESEntityStructure () const
 Returns Structure (used by some types of IGES Entities only) Returns a Null Handle if Structure is not defined. More...
 
virtual IGESData_DefType DefLineFont () const
 Returns the definition status of LineFont. More...
 
Standard_Integer RankLineFont () const
 Returns LineFont definition as an Integer (if defined as Rank) If LineFont is defined as an Entity, returns a negative value. More...
 
Handle< IGESData_LineFontEntityLineFont () const
 Returns LineFont as an Entity (if defined as Reference) Returns a Null Handle if DefLineFont is not "DefReference". More...
 
virtual IGESData_DefList DefLevel () const
 Returns the definition status of Level. More...
 
Standard_Integer Level () const
 Returns the level the entity belongs to. Returns -1 if the entity belongs to more than one level. More...
 
Handle< IGESData_LevelListEntityLevelList () const
 Returns LevelList if Level is defined as a list. Returns a null handle if DefLevel is not DefSeveral. More...
 
virtual IGESData_DefList DefView () const
 Returns the definition status of the view. This can be: none, one or several. More...
 
Handle< IGESData_ViewKindEntityView () const
 Returns the view of this IGES entity. This view can be a single view or a list of views. Warning A null handle is returned if the view is not defined. More...
 
Handle< IGESData_ViewKindEntitySingleView () const
 Returns the view as a single view if it was defined as such and not as a list of views. Warning A null handle is returned if DefView does not have the value DefOne. More...
 
Handle< IGESData_ViewKindEntityViewList () const
 Returns the view of this IGES entity as a list. Warning A null handle is returned if the definition status does not have the value DefSeveral. More...
 
Standard_Boolean HasTransf () const
 Returns True if a Transformation Matrix is defined. More...
 
Handle< IGESData_TransfEntityTransf () const
 Returns the Transformation Matrix (under IGES definition) Returns a Null Handle if there is none for a more complete use, see Location & CompoundLocation. More...
 
Standard_Boolean HasLabelDisplay () const
 Returns True if a LabelDisplay mode is defined for this entity. More...
 
Handle
< IGESData_LabelDisplayEntity
LabelDisplay () const
 Returns the Label Display Associativity Entity if there is one. Returns a null handle if there is none. More...
 
Standard_Integer BlankStatus () const
 gives Blank Status (0 visible, 1 blanked) More...
 
Standard_Integer SubordinateStatus () const
 gives Subordinate Switch (0-1-2-3) More...
 
Standard_Integer UseFlag () const
 gives Entity's Use Flag (0 to 5) More...
 
Standard_Integer HierarchyStatus () const
 gives Hierarchy status (0-1-2) More...
 
Standard_Integer LineWeightNumber () const
 Returns the LineWeight Number (0 not defined), see also LineWeight. More...
 
Standard_Real LineWeight () const
 Returns the true Line Weight, computed from LineWeightNumber and Global Parameter in the Model by call to SetLineWeight. More...
 
virtual IGESData_DefType DefColor () const
 Returns the definition status of Color. More...
 
Standard_Integer RankColor () const
 Returns the color definition as an integer value if the color was defined as a rank. Warning A negative value is returned if the color was defined as an entity. More...
 
Handle< IGESData_ColorEntityColor () const
 Returns the IGES entity which describes the color of the entity. Returns a null handle if this entity was defined as an integer. More...
 
Standard_Boolean CResValues (const Standard_CString res1, const Standard_CString res2) const
 returns "reserved" alphanumeric values res1 and res2 res1 and res2 have to be reserved as Character[9 at least] (remark : their content is changed) returned values are ended by null character in 9th returned Boolean is False if res1 and res2 are blank, true else More...
 
Standard_Boolean HasShortLabel () const
 Returns true if a short label is defined. A short label is a non-blank 8-character string. More...
 
Handle< TCollection_HAsciiStringShortLabel () const
 Returns the label value for this IGES entity as a string. Warning If the label is blank, this string is null. More...
 
virtual Standard_Boolean HasSubScriptNumber () const
 Returns true if a subscript number is defined. A subscript number is an integer used to identify a label. More...
 
Standard_Integer SubScriptNumber () const
 Returns the integer subscript number used to identify this IGES entity. Warning 0 is returned if no subscript number is defined for this IGES entity. More...
 
void InitDirFieldEntity (const Standard_Integer fieldnum, const Handle< IGESData_IGESEntity > &ent)
 Initializes a directory field as an Entiy of any kind See DirFieldEntity for more details. More...
 
void InitTransf (const Handle< IGESData_TransfEntity > &ent)
 Initializes Transf, or erases it if <ent> is given Null. More...
 
void InitView (const Handle< IGESData_ViewKindEntity > &ent)
 Initializes View, or erases it if <ent> is given Null. More...
 
void InitLineFont (const Handle< IGESData_LineFontEntity > &ent, const Standard_Integer rank=0)
 Initializes LineFont : if <ent> is not Null, it gives LineFont, else <rank> gives or erases (if zero) RankLineFont. More...
 
void InitLevel (const Handle< IGESData_LevelListEntity > &ent, const Standard_Integer val=0)
 Initializes Level : if <ent> is not Null, it gives LevelList, else <val> gives or erases (if zero) unique Level. More...
 
void InitColor (const Handle< IGESData_ColorEntity > &ent, const Standard_Integer rank=0)
 Initializes Color data : if <ent> is not Null, it gives Color, else <rank> gives or erases (if zero) RankColor. More...
 
void InitStatus (const Standard_Integer blank, const Standard_Integer subordinate, const Standard_Integer useflag, const Standard_Integer hierarchy)
 Initializes the Status of Directory Part. More...
 
void SetLabel (const Handle< TCollection_HAsciiString > &label, const Standard_Integer sub=-1)
 Sets a new Label to an IGES Entity If is given, it sets value of SubScriptNumber else, SubScriptNumber is erased. More...
 
void InitMisc (const Handle< IGESData_IGESEntity > &str, const Handle< IGESData_LabelDisplayEntity > &lab, const Standard_Integer weightnum)
 Initializes various data (those not yet seen above), or erases them if they are given as Null (Zero for <weightnum>) : <str> for Structure, <lab> for LabelDisplay, and <weightnum> for WeightNumber. More...
 
Standard_Boolean HasOneParent () const
 Returns True if an entity has one and only one parent, defined by a SingleParentEntity Type Associativity (explicit sharing). Thus, implicit sharing remains defined at model level (see class ToolLocation) More...
 
Handle< IGESData_IGESEntityUniqueParent () const
 Returns the Unique Parent (in the sense given by HasOneParent) Error if there is none or several. More...
 
gp_GTrsf Location () const
 Returns Location given by Transf in Directory Part (see above) It must be considered for local definition : if the Entity is set in a "Parent", that one can add its one Location, but this is not taken in account here : see CompoundLocation for that. If no Transf is defined, returns Identity If Transf is itself compound, gives the final result. More...
 
gp_GTrsf VectorLocation () const
 Returns Location considered for Vectors, i.e. without its Translation Part. As Location, it gives local definition. More...
 
gp_GTrsf CompoundLocation () const
 Returns Location by taking in account a Parent which has its own Location : that one will be combined to that of <me> The Parent is considered only if HasOneParent is True, else it is ignored and CompoundLocation = Location. More...
 
Standard_Boolean HasName () const
 says if a Name is defined, as Short Label or as Name Property (Property is looked first, else ShortLabel is considered) More...
 
Handle< TCollection_HAsciiStringNameValue () const
 returns Name value as a String (Property Name or ShortLabel) if SubNumber is defined, it is concatenated after ShortLabel as follows label(number). Ignored with a Property Name More...
 
Standard_Boolean ArePresentAssociativities () const
 Returns True if the Entity is defined with an Associativity list, even empty (that is, file contains its length 0) Else, the file contained NO idencation at all about this list. More...
 
Standard_Integer NbAssociativities () const
 gives number of recorded associativities (0 no list defined) More...
 
Interface_EntityIterator Associativities () const
 Returns the Associativity List under the form of an EntityIterator. More...
 
Standard_Integer NbTypedAssociativities (const Handle< Standard_Type > &atype) const
 gives how many Associativities have a given type More...
 
Handle< IGESData_IGESEntityTypedAssociativity (const Handle< Standard_Type > &atype) const
 returns the Associativity of a given Type (if only one exists) Error if none or more than one More...
 
void Associate (const Handle< IGESData_IGESEntity > &ent) const
 Sets "me" in the Associativity list of another Entity. More...
 
void Dissociate (const Handle< IGESData_IGESEntity > &ent) const
 Resets "me" from the Associativity list of another Entity. More...
 
Standard_Boolean ArePresentProperties () const
 Returns True if the Entity is defined with a Property list, even empty (that is, file contains its length 0) Else, the file contained NO idencation at all about this list. More...
 
Standard_Integer NbProperties () const
 Gives number of recorded properties (0 no list defined) More...
 
Interface_EntityIterator Properties () const
 Returns Property List under the form of an EntityIterator. More...
 
Standard_Integer NbTypedProperties (const Handle< Standard_Type > &atype) const
 gives how many Properties have a given type More...
 
Handle< IGESData_IGESEntityTypedProperty (const Handle< Standard_Type > &atype, const Standard_Integer anum=0) const
 returns the Property of a given Type Error if none or more than one More...
 
void AddProperty (const Handle< IGESData_IGESEntity > &ent)
 Adds a Property in the list. More...
 
void RemoveProperty (const Handle< IGESData_IGESEntity > &ent)
 Removes a Property from the list. More...
 
void SetLineWeight (const Standard_Real defw, const Standard_Real maxw, const Standard_Integer gradw)
 computes and sets "true" line weight according IGES rules from global data MaxLineWeight (maxv) and LineWeightGrad (gradw), or sets it to defw (Default) if LineWeightNumber is null More...
 
- Public Member Functions inherited from MMgt_TShared
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual const
Handle_Standard_Type & 
DynamicType () const
 Returns a type information object about this object. More...
 
Standard_Boolean IsInstance (const Handle_Standard_Type &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean IsKind (const Handle_Standard_Type &theType) const
 Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_Boolean IsKind (const Standard_CString theTypeName) const
 Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
virtual Handle_Standard_Transient This () const
 Returns a Handle which references this object. Must never be called to objects created in stack. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 

Additional Inherited Members

- Protected Member Functions inherited from IGESData_IGESEntity
 IGESData_IGESEntity ()
 prepares lists of optionnal data, set values to defaults More...
 
void InitTypeAndForm (const Standard_Integer typenum, const Standard_Integer formnum)
 Initializes Type and Form Numbers to new values. Reserved for special uses. More...
 
void LoadAssociativities (const Interface_EntityList &list)
 Loads a complete, already loaded, List of Asociativities (used during Read or Copy Operations) More...
 
void LoadProperties (const Interface_EntityList &list)
 Loads a complete, already loaded, List of Properties (used during Read or Copy Operations) More...
 
void ClearProperties ()
 Removes all properties in once. More...
 

Detailed Description

Defines IGESSplineCurve, Type <112> Form <0> in package IGESGeom The parametric spline is a sequence of parametric polynomial segments. The curve could be of the type Linear, Quadratic, Cubic, Wilson-Fowler, Modified Wilson-Fowler, B-Spline. The N polynomial segments are delimited by the break points T(1), T(2), T(3), ..., T(N+1).

Constructor & Destructor Documentation

IGESGeom_SplineCurve::IGESGeom_SplineCurve ( )

Member Function Documentation

Standard_Real IGESGeom_SplineCurve::BreakPoint ( const Standard_Integer  Index) const

returns breakpoint of piecewise polynomial raises exception if Index <= 0 or Index > NbSegments() + 1

Standard_Integer IGESGeom_SplineCurve::Degree ( ) const

returns the degree of the curve

void IGESGeom_SplineCurve::Init ( const Standard_Integer  aType,
const Standard_Integer  aDegree,
const Standard_Integer  nbDimensions,
const Handle< TColStd_HArray1OfReal > &  allBreakPoints,
const Handle< TColStd_HArray2OfReal > &  allXPolynomials,
const Handle< TColStd_HArray2OfReal > &  allYPolynomials,
const Handle< TColStd_HArray2OfReal > &  allZPolynomials,
const Handle< TColStd_HArray1OfReal > &  allXvalues,
const Handle< TColStd_HArray1OfReal > &  allYvalues,
const Handle< TColStd_HArray1OfReal > &  allZvalues 
)

This method is used to set the fields of the class SplineCurve.

  • aType : Spline Type 1 = Linear 2 = Quadratic 3 = Cubic 4 = Wilson-Fowler 5 = Modified Wilson-Fowler 6 = B Spline
  • aDegree : Degree of continuity w.r.t. arc length
  • nbDimensions : Number of dimensions 2 = Planar 3 = Non-planar
  • allBreakPoints : Array of break points
  • allXPolynomials : X coordinate polynomials of segments
  • allYPolynomials : Y coordinate polynomials of segments
  • allZPolynomials : Z coordinate polynomials of segments
  • allXValues : Values of 1st, 2nd, 3rd derivatives of X polynomials at the terminate point and values of X at terminate point
  • allYValues : Values of 1st, 2nd, 3rd derivatives of Y polynomials at the terminate point and values of Y at terminate point
  • allZvalues : Values of 1st, 2nd, 3rd derivatives of Z polynomials at the terminate point and values of Z at terminate point raises exception if allXPolynomials, allYPolynomials & allZPolynomials are not of same size OR allXValues, allYValues & allZValues are not of size 4
Standard_Integer IGESGeom_SplineCurve::NbDimensions ( ) const

returns the number of dimensions 2 = Planar 3 = Non-planar

Standard_Integer IGESGeom_SplineCurve::NbSegments ( ) const

returns the number of segments

Standard_Integer IGESGeom_SplineCurve::SplineType ( ) const

returns the type of Spline curve

void IGESGeom_SplineCurve::XCoordPolynomial ( const Standard_Integer  Index,
Standard_Real AX,
Standard_Real BX,
Standard_Real CX,
Standard_Real DX 
) const

returns X coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments()

void IGESGeom_SplineCurve::XValues ( Standard_Real TPX0,
Standard_Real TPX1,
Standard_Real TPX2,
Standard_Real TPX3 
) const

returns the value of X polynomial, the values of 1st, 2nd and 3rd derivatives of the X polynomial at the terminate point

void IGESGeom_SplineCurve::YCoordPolynomial ( const Standard_Integer  Index,
Standard_Real AY,
Standard_Real BY,
Standard_Real CY,
Standard_Real DY 
) const

returns Y coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments()

void IGESGeom_SplineCurve::YValues ( Standard_Real TPY0,
Standard_Real TPY1,
Standard_Real TPY2,
Standard_Real TPY3 
) const

returns the value of Y polynomial, the values of 1st, 2nd and 3rd derivatives of the Y polynomial at the termminate point

void IGESGeom_SplineCurve::ZCoordPolynomial ( const Standard_Integer  Index,
Standard_Real AZ,
Standard_Real BZ,
Standard_Real CZ,
Standard_Real DZ 
) const

returns Z coordinate polynomial for segment referred to by Index raises exception if Index <= 0 or Index > NbSegments()

void IGESGeom_SplineCurve::ZValues ( Standard_Real TPZ0,
Standard_Real TPZ1,
Standard_Real TPZ2,
Standard_Real TPZ3 
) const

returns the value of Z polynomial, the values of 1st, 2nd and 3rd derivatives of the Z polynomial at the termminate point


The documentation for this class was generated from the following file: