defines IGESBSplineCurve, Type <126> Form <0-5> in package IGESGeom A parametric equation obtained by dividing two summations involving weights (which are real numbers), the control points, and B-Spline basis functions More...
#include <IGESGeom_BSplineCurve.hxx>
Inheritance diagram for IGESGeom_BSplineCurve:
Public Member Functions | |
| IGESGeom_BSplineCurve () | |
| void | Init (const Standard_Integer anIndex, const Standard_Integer aDegree, const Standard_Boolean aPlanar, const Standard_Boolean aClosed, const Standard_Boolean aPolynom, const Standard_Boolean aPeriodic, const Handle< TColStd_HArray1OfReal > &allKnots, const Handle< TColStd_HArray1OfReal > &allWeights, const Handle< TColgp_HArray1OfXYZ > &allPoles, const Standard_Real aUmin, const Standard_Real aUmax, const gp_XYZ &aNorm) |
| This method is used to set the fields of the class BSplineCurve. Beware about indexation of arrays. More... | |
| void | SetFormNumber (const Standard_Integer form) |
| Changes FormNumber (indicates the Shape of the Curve) Error if not in range [0-5]. More... | |
| Standard_Integer | UpperIndex () const |
| returns the upper index of the sum (see Knots,Poles) More... | |
| Standard_Integer | Degree () const |
| returns the degree of basis functions More... | |
| Standard_Boolean | IsPlanar () const |
| returns True if the curve is Planar, False if non-planar More... | |
| Standard_Boolean | IsClosed () const |
| returns True if the curve is closed, False if open More... | |
| Standard_Boolean | IsPolynomial (const Standard_Boolean flag=Standard_False) const |
| returns True if the curve is polynomial, False if rational <flag> False (D) : computed from the list of weights (all must be equal) <flag> True : as recorded More... | |
| Standard_Boolean | IsPeriodic () const |
| returns True if the curve is periodic, False otherwise More... | |
| Standard_Integer | NbKnots () const |
| returns the number of knots (i.e. Degree + UpperIndex + 2) More... | |
| Standard_Real | Knot (const Standard_Integer anIndex) const |
| returns the knot referred to by anIndex, inside the range [-Degree,UpperIndex+1] raises exception if anIndex < -Degree() or anIndex > (NbKnots() - Degree()) Note : Knots are numbered from -Degree (not from 1) More... | |
| Standard_Integer | NbPoles () const |
| returns number of poles (i.e. UpperIndex + 1) More... | |
| Standard_Real | Weight (const Standard_Integer anIndex) const |
| returns the weight referred to by anIndex, in [0,UpperIndex] raises exception if anIndex < 0 or anIndex > UpperIndex() More... | |
| gp_Pnt | Pole (const Standard_Integer anIndex) const |
| returns the pole referred to by anIndex, in [0,UpperIndex] raises exception if anIndex < 0 or anIndex > UpperIndex() More... | |
| gp_Pnt | TransformedPole (const Standard_Integer anIndex) const |
| returns the anIndex'th pole after applying Transf. Matrix raises exception if an Index < 0 or an Index > UpperIndex() More... | |
| Standard_Real | UMin () const |
| returns starting parameter value More... | |
| Standard_Real | UMax () const |
| returns ending parameter value More... | |
| gp_XYZ | Normal () const |
| if the curve is nonplanar then (0, 0, 0) is returned 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_IGESEntity > | DirFieldEntity (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_IGESEntity > | Structure () 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_LineFontEntity > | LineFont () 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_LevelListEntity > | LevelList () 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_ViewKindEntity > | View () 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_ViewKindEntity > | SingleView () 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_ViewKindEntity > | ViewList () 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_TransfEntity > | Transf () 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_ColorEntity > | Color () 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_HAsciiString > | ShortLabel () 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_IGESEntity > | UniqueParent () 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_HAsciiString > | NameValue () 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_IGESEntity > | TypedAssociativity (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_IGESEntity > | TypedProperty (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 Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. More... | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. More... | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. More... | |
| virtual | ~Standard_Transient () |
| Destructor must be virtual. More... | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. More... | |
| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object. More... | |
| Standard_Boolean | IsInstance (const opencascade::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 opencascade::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... | |
| Standard_Transient * | This () const |
| Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More... | |
| Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More... | |
| void | IncrementRefCounter () const |
| Increments the reference counter of this object. More... | |
| Standard_Integer | DecrementRefCounter () const |
| Decrements the reference counter of this object; returns the decremented value. More... | |
Additional Inherited Members | |
| Public Types inherited from Standard_Transient | |
| typedef void | base_type |
| Returns a type descriptor about this object. More... | |
| Static Public Member Functions inherited from Standard_Transient | |
| static const char * | get_type_name () |
| Returns a type descriptor about this object. More... | |
| static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
| Returns type descriptor of Standard_Transient class. More... | |
| 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 IGESBSplineCurve, Type <126> Form <0-5> in package IGESGeom A parametric equation obtained by dividing two summations involving weights (which are real numbers), the control points, and B-Spline basis functions
Constructor & Destructor Documentation
◆ IGESGeom_BSplineCurve()
| IGESGeom_BSplineCurve::IGESGeom_BSplineCurve | ( | ) |
Member Function Documentation
◆ Degree()
| Standard_Integer IGESGeom_BSplineCurve::Degree | ( | ) | const |
returns the degree of basis functions
◆ Init()
| void IGESGeom_BSplineCurve::Init | ( | const Standard_Integer | anIndex, |
| const Standard_Integer | aDegree, | ||
| const Standard_Boolean | aPlanar, | ||
| const Standard_Boolean | aClosed, | ||
| const Standard_Boolean | aPolynom, | ||
| const Standard_Boolean | aPeriodic, | ||
| const Handle< TColStd_HArray1OfReal > & | allKnots, | ||
| const Handle< TColStd_HArray1OfReal > & | allWeights, | ||
| const Handle< TColgp_HArray1OfXYZ > & | allPoles, | ||
| const Standard_Real | aUmin, | ||
| const Standard_Real | aUmax, | ||
| const gp_XYZ & | aNorm | ||
| ) |
This method is used to set the fields of the class BSplineCurve. Beware about indexation of arrays.
- anIndex : Upper index of the sum
- aDegree : Degree of basis functions
- aPlanar : 0 = nonplanar curve, 1 = planar curve
- aClosed : 0 = open curve, 1 = closed curve
- aPolynom : 0 = rational, 1 = polynomial
- aPeriodic : 0 = nonperiodic, 1 = periodic
- allKnots : Knot sequence values [-Degree,Index+1]
- allWeights : Array of weights [0,Index]
- allPoles : X, Y, Z coordinates of all control points [0,Index]
- aUmin, aUmax : Starting and ending parameter values
- aNorm : Unit normal (if the curve is planar) raises exception if allWeights & allPoles are not of same size.
◆ IsClosed()
| Standard_Boolean IGESGeom_BSplineCurve::IsClosed | ( | ) | const |
returns True if the curve is closed, False if open
◆ IsPeriodic()
| Standard_Boolean IGESGeom_BSplineCurve::IsPeriodic | ( | ) | const |
returns True if the curve is periodic, False otherwise
◆ IsPlanar()
| Standard_Boolean IGESGeom_BSplineCurve::IsPlanar | ( | ) | const |
returns True if the curve is Planar, False if non-planar
◆ IsPolynomial()
| Standard_Boolean IGESGeom_BSplineCurve::IsPolynomial | ( | const Standard_Boolean | flag = Standard_False | ) | const |
returns True if the curve is polynomial, False if rational <flag> False (D) : computed from the list of weights (all must be equal) <flag> True : as recorded
◆ Knot()
| Standard_Real IGESGeom_BSplineCurve::Knot | ( | const Standard_Integer | anIndex | ) | const |
◆ NbKnots()
| Standard_Integer IGESGeom_BSplineCurve::NbKnots | ( | ) | const |
returns the number of knots (i.e. Degree + UpperIndex + 2)
◆ NbPoles()
| Standard_Integer IGESGeom_BSplineCurve::NbPoles | ( | ) | const |
returns number of poles (i.e. UpperIndex + 1)
◆ Normal()
| gp_XYZ IGESGeom_BSplineCurve::Normal | ( | ) | const |
if the curve is nonplanar then (0, 0, 0) is returned
◆ Pole()
| gp_Pnt IGESGeom_BSplineCurve::Pole | ( | const Standard_Integer | anIndex | ) | const |
returns the pole referred to by anIndex, in [0,UpperIndex] raises exception if anIndex < 0 or anIndex > UpperIndex()
◆ SetFormNumber()
| void IGESGeom_BSplineCurve::SetFormNumber | ( | const Standard_Integer | form | ) |
Changes FormNumber (indicates the Shape of the Curve) Error if not in range [0-5].
◆ TransformedPole()
| gp_Pnt IGESGeom_BSplineCurve::TransformedPole | ( | const Standard_Integer | anIndex | ) | const |
returns the anIndex'th pole after applying Transf. Matrix raises exception if an Index < 0 or an Index > UpperIndex()
◆ UMax()
| Standard_Real IGESGeom_BSplineCurve::UMax | ( | ) | const |
returns ending parameter value
◆ UMin()
| Standard_Real IGESGeom_BSplineCurve::UMin | ( | ) | const |
returns starting parameter value
◆ UpperIndex()
| Standard_Integer IGESGeom_BSplineCurve::UpperIndex | ( | ) | const |
returns the upper index of the sum (see Knots,Poles)
◆ Weight()
| Standard_Real IGESGeom_BSplineCurve::Weight | ( | const Standard_Integer | anIndex | ) | const |
returns the weight referred to by anIndex, in [0,UpperIndex] raises exception if anIndex < 0 or anIndex > UpperIndex()
The documentation for this class was generated from the following file:
