Open CASCADE Technology  7.0.0
Public Member Functions

IGESGeom_OffsetCurve Class Reference

defines IGESOffsetCurve, Type <130> Form <0> in package IGESGeom An OffsetCurve entity contains the data necessary to determine the offset of a given curve C. This entity points to the base curve to be offset and contains offset distance and other pertinent information. More...

#include <IGESGeom_OffsetCurve.hxx>

Inheritance diagram for IGESGeom_OffsetCurve:
Inheritance graph
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Public Member Functions

 IGESGeom_OffsetCurve ()
 
void Init (const Handle< IGESData_IGESEntity > &aBaseCurve, const Standard_Integer anOffsetType, const Handle< IGESData_IGESEntity > &aFunction, const Standard_Integer aFunctionCoord, const Standard_Integer aTaperedOffsetType, const Standard_Real offDistance1, const Standard_Real arcLength1, const Standard_Real offDistance2, const Standard_Real arcLength2, const gp_XYZ &aNormalVec, const Standard_Real anOffsetParam, const Standard_Real anotherOffsetParam)
 This method is used to set the fields of the class OffsetCurve. More...
 
Handle< IGESData_IGESEntityBaseCurve () const
 returns the curve to be offset More...
 
Standard_Integer OffsetType () const
 returns the offset distance flag 1 = Single value offset (uniform distance) 2 = Offset distance varying linearly 3 = Offset distance specified as a function More...
 
Handle< IGESData_IGESEntityFunction () const
 returns the function defining the offset if at all the offset is described as a function or Null Handle. More...
 
Standard_Boolean HasFunction () const
 returns True if function defining the offset is present. More...
 
Standard_Integer FunctionParameter () const
 returns particular coordinate of the curve which describes offset as a function of its parameters. (only used if OffsetType() = 3) More...
 
Standard_Integer TaperedOffsetType () const
 returns tapered offset type flag (only used if OffsetType() = 2 or 3) 1 = Function of arc length 2 = Function of parameter More...
 
Standard_Real FirstOffsetDistance () const
 returns first offset distance (only used if OffsetType() = 1 or 2) More...
 
Standard_Real ArcLength1 () const
 returns arc length or parameter value (depending on value of offset distance flag) of first offset distance (only used if OffsetType() = 2) More...
 
Standard_Real SecondOffsetDistance () const
 returns the second offset distance More...
 
Standard_Real ArcLength2 () const
 returns arc length or parameter value (depending on value of offset distance flag) of second offset distance (only used if OffsetType() = 2) More...
 
gp_Vec NormalVector () const
 returns unit vector normal to plane containing curve to be offset More...
 
gp_Vec TransformedNormalVector () const
 returns unit vector normal to plane containing curve to be offset after applying Transf. Matrix More...
 
void Parameters (Standard_Real &StartParam, Standard_Real &EndParam) const
 
Standard_Real StartParameter () const
 returns Start Parameter value of the offset curve More...
 
Standard_Real EndParameter () const
 returns End Parameter value of the offset curve 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_LabelDisplayEntityLabelDisplay () 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 override
 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 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_TransientThis () 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 IGESOffsetCurve, Type <130> Form <0> in package IGESGeom An OffsetCurve entity contains the data necessary to determine the offset of a given curve C. This entity points to the base curve to be offset and contains offset distance and other pertinent information.

Constructor & Destructor Documentation

IGESGeom_OffsetCurve::IGESGeom_OffsetCurve ( )

Member Function Documentation

Standard_Real IGESGeom_OffsetCurve::ArcLength1 ( ) const

returns arc length or parameter value (depending on value of offset distance flag) of first offset distance (only used if OffsetType() = 2)

Standard_Real IGESGeom_OffsetCurve::ArcLength2 ( ) const

returns arc length or parameter value (depending on value of offset distance flag) of second offset distance (only used if OffsetType() = 2)

Handle< IGESData_IGESEntity > IGESGeom_OffsetCurve::BaseCurve ( ) const

returns the curve to be offset

Standard_Real IGESGeom_OffsetCurve::EndParameter ( ) const

returns End Parameter value of the offset curve

Standard_Real IGESGeom_OffsetCurve::FirstOffsetDistance ( ) const

returns first offset distance (only used if OffsetType() = 1 or 2)

Handle< IGESData_IGESEntity > IGESGeom_OffsetCurve::Function ( ) const

returns the function defining the offset if at all the offset is described as a function or Null Handle.

Standard_Integer IGESGeom_OffsetCurve::FunctionParameter ( ) const

returns particular coordinate of the curve which describes offset as a function of its parameters. (only used if OffsetType() = 3)

Standard_Boolean IGESGeom_OffsetCurve::HasFunction ( ) const

returns True if function defining the offset is present.

void IGESGeom_OffsetCurve::Init ( const Handle< IGESData_IGESEntity > &  aBaseCurve,
const Standard_Integer  anOffsetType,
const Handle< IGESData_IGESEntity > &  aFunction,
const Standard_Integer  aFunctionCoord,
const Standard_Integer  aTaperedOffsetType,
const Standard_Real  offDistance1,
const Standard_Real  arcLength1,
const Standard_Real  offDistance2,
const Standard_Real  arcLength2,
const gp_XYZ aNormalVec,
const Standard_Real  anOffsetParam,
const Standard_Real  anotherOffsetParam 
)

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

  • aBaseCurve : The curve entity to be offset
  • anOffsetType : Offset distance flag 1 = Single value, uniform distance 2 = Varying linearly 3 = As a specified function
  • aFunction : Curve entity, one coordinate of which describes offset as a function of its parameter (0 unless OffsetType = 3)
  • aFunctionCoord : Particular coordinate of curve describing offset as function of its parameters. (used if OffsetType = 3)
  • aTaperedOffsetType : Tapered offset type flag 1 = Function of arc length 2 = Function of parameter (Only used if OffsetType = 2 or 3)
  • offDistance1 : First offset distance (Only used if OffsetType = 1 or 2)
  • arcLength1 : Arc length or parameter value of first offset distance (Only used if OffsetType = 2)
  • offDistance2 : Second offset distance
  • arcLength2 : Arc length or parameter value of second offset distance (Only used if OffsetType = 2)
  • aNormalVec : Unit vector normal to plane containing curve to be offset
  • anOffsetParam : Start parameter value of offset curve
  • anotherOffsetParam : End parameter value of offset curve
gp_Vec IGESGeom_OffsetCurve::NormalVector ( ) const

returns unit vector normal to plane containing curve to be offset

Standard_Integer IGESGeom_OffsetCurve::OffsetType ( ) const

returns the offset distance flag 1 = Single value offset (uniform distance) 2 = Offset distance varying linearly 3 = Offset distance specified as a function

void IGESGeom_OffsetCurve::Parameters ( Standard_Real StartParam,
Standard_Real EndParam 
) const
Standard_Real IGESGeom_OffsetCurve::SecondOffsetDistance ( ) const

returns the second offset distance

Standard_Real IGESGeom_OffsetCurve::StartParameter ( ) const

returns Start Parameter value of the offset curve

Standard_Integer IGESGeom_OffsetCurve::TaperedOffsetType ( ) const

returns tapered offset type flag (only used if OffsetType() = 2 or 3) 1 = Function of arc length 2 = Function of parameter

gp_Vec IGESGeom_OffsetCurve::TransformedNormalVector ( ) const

returns unit vector normal to plane containing curve to be offset after applying Transf. Matrix


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