defines IGESConicArc, Type <104> Form <0-3> in package IGESGeom A conic arc is a bounded connected portion of a parent conic curve which consists of more than one point. The parent conic curve is either an ellipse, a parabola, or a hyperbola. The definition space coordinate system is always chosen so that the conic arc lies in a plane either coincident with or parallel to XT, YT plane. Within such a plane a conic is defined by the six coefficients in the following equation. A*XT^2 + B*XT*YT + C*YT^2 + D*XT + E*YT + F = 0 More...
#include <IGESGeom_ConicArc.hxx>
Inheritance diagram for IGESGeom_ConicArc:
Public Member Functions | |
| IGESGeom_ConicArc () | |
| void | Init (const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D, const Standard_Real E, const Standard_Real F, const Standard_Real ZT, const gp_XY &aStart, const gp_XY &anEnd) |
| This method is used to set the fields of the class ConicalArc. More... | |
| Standard_Boolean | OwnCorrect () |
| sets the Form Number equal to ComputedFormNumber, returns True if changed More... | |
| Standard_Integer | ComputedFormNumber () const |
| Computes the Form Number according to the equation 1 for Ellipse, 2 for Hyperbola, 3 for Parabola. More... | |
| void | Equation (Standard_Real &A, Standard_Real &B, Standard_Real &C, Standard_Real &D, Standard_Real &E, Standard_Real &F) const |
| Standard_Real | ZPlane () const |
| returns the Z displacement of the arc from XT, YT plane More... | |
| gp_Pnt2d | StartPoint () const |
| returns the starting point of the arc More... | |
| gp_Pnt | TransformedStartPoint () const |
| returns the starting point of the arc after applying Transf. Matrix More... | |
| gp_Pnt2d | EndPoint () const |
| returns the end point of the arc More... | |
| gp_Pnt | TransformedEndPoint () const |
| returns the end point of the arc after applying Transf. Matrix More... | |
| Standard_Boolean | IsFromEllipse () const |
| returns True if parent conic curve is an ellipse More... | |
| Standard_Boolean | IsFromParabola () const |
| returns True if parent conic curve is a parabola More... | |
| Standard_Boolean | IsFromHyperbola () const |
| returns True if parent conic curve is a hyperbola More... | |
| Standard_Boolean | IsClosed () const |
| returns True if StartPoint = EndPoint More... | |
| gp_Dir | Axis () const |
| Z-Axis of conic (i.e. [0,0,1]) More... | |
| gp_Dir | TransformedAxis () const |
| Z-Axis after applying Trans. Matrix. More... | |
| void | Definition (gp_Pnt &Center, gp_Dir &MainAxis, Standard_Real &rmin, Standard_Real &rmax) const |
| Returns a Definition computed from equation, easier to use | |
| void | TransformedDefinition (gp_Pnt &Center, gp_Dir &MainAxis, Standard_Real &rmin, Standard_Real &rmax) const |
| Same as Definition, but the Location is applied on the Center and the MainAxis. More... | |
| void | ComputedDefinition (Standard_Real &Xcen, Standard_Real &Ycen, Standard_Real &Xax, Standard_Real &Yax, Standard_Real &Rmin, Standard_Real &Rmax) const |
| Computes and returns the coordinates of the definition of a comic from its equation. Used by Definition & TransformedDefinition, or may be called directly if needed. 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 IGESConicArc, Type <104> Form <0-3> in package IGESGeom A conic arc is a bounded connected portion of a parent conic curve which consists of more than one point. The parent conic curve is either an ellipse, a parabola, or a hyperbola. The definition space coordinate system is always chosen so that the conic arc lies in a plane either coincident with or parallel to XT, YT plane. Within such a plane a conic is defined by the six coefficients in the following equation. A*XT^2 + B*XT*YT + C*YT^2 + D*XT + E*YT + F = 0
Constructor & Destructor Documentation
◆ IGESGeom_ConicArc()
| IGESGeom_ConicArc::IGESGeom_ConicArc | ( | ) |
Member Function Documentation
◆ Axis()
| gp_Dir IGESGeom_ConicArc::Axis | ( | ) | const |
Z-Axis of conic (i.e. [0,0,1])
◆ ComputedDefinition()
| void IGESGeom_ConicArc::ComputedDefinition | ( | Standard_Real & | Xcen, |
| Standard_Real & | Ycen, | ||
| Standard_Real & | Xax, | ||
| Standard_Real & | Yax, | ||
| Standard_Real & | Rmin, | ||
| Standard_Real & | Rmax | ||
| ) | const |
Computes and returns the coordinates of the definition of a comic from its equation. Used by Definition & TransformedDefinition, or may be called directly if needed.
◆ ComputedFormNumber()
| Standard_Integer IGESGeom_ConicArc::ComputedFormNumber | ( | ) | const |
Computes the Form Number according to the equation 1 for Ellipse, 2 for Hyperbola, 3 for Parabola.
◆ Definition()
| void IGESGeom_ConicArc::Definition | ( | gp_Pnt & | Center, |
| gp_Dir & | MainAxis, | ||
| Standard_Real & | rmin, | ||
| Standard_Real & | rmax | ||
| ) | const |
Returns a Definition computed from equation, easier to use
◆ EndPoint()
| gp_Pnt2d IGESGeom_ConicArc::EndPoint | ( | ) | const |
returns the end point of the arc
◆ Equation()
| void IGESGeom_ConicArc::Equation | ( | Standard_Real & | A, |
| Standard_Real & | B, | ||
| Standard_Real & | C, | ||
| Standard_Real & | D, | ||
| Standard_Real & | E, | ||
| Standard_Real & | F | ||
| ) | const |
◆ Init()
| void IGESGeom_ConicArc::Init | ( | const Standard_Real | A, |
| const Standard_Real | B, | ||
| const Standard_Real | C, | ||
| const Standard_Real | D, | ||
| const Standard_Real | E, | ||
| const Standard_Real | F, | ||
| const Standard_Real | ZT, | ||
| const gp_XY & | aStart, | ||
| const gp_XY & | anEnd | ||
| ) |
This method is used to set the fields of the class ConicalArc.
- A, B, C, D, E, F : Coefficients of the equation defining conic arc
- ZT : Parallel ZT displacement of the arc from XT, YT plane.
- aStart : Starting point of the conic arc
- anEnd : End point of the conic arc
◆ IsClosed()
| Standard_Boolean IGESGeom_ConicArc::IsClosed | ( | ) | const |
returns True if StartPoint = EndPoint
◆ IsFromEllipse()
| Standard_Boolean IGESGeom_ConicArc::IsFromEllipse | ( | ) | const |
returns True if parent conic curve is an ellipse
◆ IsFromHyperbola()
| Standard_Boolean IGESGeom_ConicArc::IsFromHyperbola | ( | ) | const |
returns True if parent conic curve is a hyperbola
◆ IsFromParabola()
| Standard_Boolean IGESGeom_ConicArc::IsFromParabola | ( | ) | const |
returns True if parent conic curve is a parabola
◆ OwnCorrect()
| Standard_Boolean IGESGeom_ConicArc::OwnCorrect | ( | ) |
sets the Form Number equal to ComputedFormNumber, returns True if changed
◆ StartPoint()
| gp_Pnt2d IGESGeom_ConicArc::StartPoint | ( | ) | const |
returns the starting point of the arc
◆ TransformedAxis()
| gp_Dir IGESGeom_ConicArc::TransformedAxis | ( | ) | const |
Z-Axis after applying Trans. Matrix.
◆ TransformedDefinition()
| void IGESGeom_ConicArc::TransformedDefinition | ( | gp_Pnt & | Center, |
| gp_Dir & | MainAxis, | ||
| Standard_Real & | rmin, | ||
| Standard_Real & | rmax | ||
| ) | const |
Same as Definition, but the Location is applied on the Center and the MainAxis.
◆ TransformedEndPoint()
| gp_Pnt IGESGeom_ConicArc::TransformedEndPoint | ( | ) | const |
returns the end point of the arc after applying Transf. Matrix
◆ TransformedStartPoint()
| gp_Pnt IGESGeom_ConicArc::TransformedStartPoint | ( | ) | const |
returns the starting point of the arc after applying Transf. Matrix
◆ ZPlane()
| Standard_Real IGESGeom_ConicArc::ZPlane | ( | ) | const |
returns the Z displacement of the arc from XT, YT plane
The documentation for this class was generated from the following file:
