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Open CASCADE Technology Reference Manual 8.0.0
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Open CASCADE Technology Reference Manual 8.0.0
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Transformation Zoom persistence with the above boundary of scale. This persistence works only when the camera scale value is below the scale value of this persistence. Otherwise, no persistence is applied. More...
#include <Graphic3d_TransformPersScaledAbove.hxx>
Public Member Functions | |
| Graphic3d_TransformPersScaledAbove (const double theScale, const gp_Pnt &thePnt) | |
| Create a Zoom transformation persistence with an anchor 3D point and a scale value. | |
| ~Graphic3d_TransformPersScaledAbove () override=default | |
| Destructor. | |
| double | persistentScale (const occ::handle< Graphic3d_Camera > &theCamera, const int theViewportWidth, const int theViewportHeight) const override |
| Find scale value based on the camera position and view dimensions If the camera scale value less than the persistence scale, zoom persistence is not applied. | |
 Public Member Functions inherited from Graphic3d_TransformPers | |
| Graphic3d_TransformPers (const Graphic3d_TransModeFlags theMode) | |
| Set transformation persistence. | |
| Graphic3d_TransformPers (const Graphic3d_TransModeFlags theMode, const gp_Pnt &thePnt) | |
| Set Zoom/Rotate transformation persistence with an anchor 3D point. Anchor point defines the origin of Local Coordinate system within World Coordinate system. Throws an exception if persistence mode is not Graphic3d_TMF_ZoomPers, Graphic3d_TMF_ZoomRotatePers or Graphic3d_TMF_RotatePers. | |
| Graphic3d_TransformPers (const Graphic3d_TransModeFlags theMode, const Aspect_TypeOfTriedronPosition theCorner, const NCollection_Vec2< int > &theOffset=NCollection_Vec2< int >(0, 0)) | |
| Set 2d/trihedron transformation persistence with a corner and 2D offset. 2D offset defines the origin of Local Coordinate system as projection of 2D point on screen plane into World Coordinate system. Throws an exception if persistence mode is not Graphic3d_TMF_TriedronPers or Graphic3d_TMF_2d. The offset is a positive displacement from the view corner in pixels. | |
| bool | IsZoomOrRotate () const |
| Return true for Graphic3d_TMF_ZoomPers, Graphic3d_TMF_ZoomRotatePers or Graphic3d_TMF_RotatePers modes. | |
| bool | IsTrihedronOr2d () const |
| Return true for Graphic3d_TMF_TriedronPers and Graphic3d_TMF_2d modes. | |
| bool | IsOrthoPers () const |
| Return true for Graphic3d_TMF_OrthoPers mode. | |
| bool | IsAxial () const |
| Return true for Graphic3d_TMF_AxialScalePers modes. | |
| Graphic3d_TransModeFlags | Mode () const |
| Transformation persistence mode flags. | |
| Graphic3d_TransModeFlags | Flags () const |
| Transformation persistence mode flags. | |
| void | SetPersistence (const Graphic3d_TransModeFlags theMode, const gp_Pnt &thePnt) |
| Set Zoom/Rotate transformation persistence with an anchor 3D point. Throws an exception if persistence mode is not Graphic3d_TMF_ZoomPers, Graphic3d_TMF_ZoomRotatePers or Graphic3d_TMF_RotatePers. | |
| void | SetPersistence (const Graphic3d_TransModeFlags theMode, const Aspect_TypeOfTriedronPosition theCorner, const NCollection_Vec2< int > &theOffset) |
| Set 2d/trihedron transformation persistence with a corner and 2D offset. Throws an exception if persistence mode is not Graphic3d_TMF_TriedronPers or Graphic3d_TMF_2d. | |
| gp_Pnt | AnchorPoint () const |
| Return the anchor point for zoom/rotate transformation persistence. | |
| void | SetAnchorPoint (const gp_Pnt &thePnt) |
| Set the anchor point for zoom/rotate transformation persistence. | |
| Aspect_TypeOfTriedronPosition | Corner2d () const |
| Return the corner for 2d/trihedron transformation persistence. | |
| void | SetCorner2d (const Aspect_TypeOfTriedronPosition thePos) |
| Set the corner for 2d/trihedron transformation persistence. | |
| NCollection_Vec2< int > | Offset2d () const |
| Return the offset from the corner for 2d/trihedron transformation persistence. | |
| void | SetOffset2d (const NCollection_Vec2< int > &theOffset) |
| Set the offset from the corner for 2d/trihedron transformation persistence. | |
| virtual NCollection_Mat3< double > | persistentRotationMatrix (const occ::handle< Graphic3d_Camera > &theCamera, const int theViewportWidth, const int theViewportHeight) const |
| Create orientation matrix based on camera and view dimensions. Default implementation locks rotation by nullifying rotation component. Camera and view dimensions are not used, by default. | |
| template<class T > | |
| void | Apply (const occ::handle< Graphic3d_Camera > &theCamera, const NCollection_Mat4< T > &theProjection, const NCollection_Mat4< T > &theWorldView, const int theViewportWidth, const int theViewportHeight, Bnd_Box &theBoundingBox) const |
| Apply transformation to bounding box of presentation. | |
| template<class T > | |
| void | Apply (const occ::handle< Graphic3d_Camera > &theCamera, const NCollection_Mat4< T > &theProjection, const NCollection_Mat4< T > &theWorldView, const int theViewportWidth, const int theViewportHeight, BVH_Box< T, 3 > &theBoundingBox) const |
| Apply transformation to bounding box of presentation. | |
| template<class T > | |
| NCollection_Mat4< T > | Compute (const occ::handle< Graphic3d_Camera > &theCamera, const NCollection_Mat4< T > &theProjection, const NCollection_Mat4< T > &theWorldView, const int theViewportWidth, const int theViewportHeight, const bool theToApplyProjPers=false) const |
| Compute transformation. Computed matrix can be applied to model world transformation of an object to implement effect of transformation persistence. | |
| template<class T > | |
| void | Apply (const occ::handle< Graphic3d_Camera > &theCamera, const NCollection_Mat4< T > &theProjection, NCollection_Mat4< T > &theWorldView, const int theViewportWidth, const int theViewportHeight, const gp_Pnt *theAnchor=nullptr, const bool theToApplyProjPers=true) const |
| Apply transformation persistence on specified matrices. | |
| virtual NCollection_Mat4< double > | ComputeApply (occ::handle< Graphic3d_Camera > &theCamera, const int theViewportWidth, const int theViewportHeight, const gp_Pnt *theAnchor=nullptr) const |
| Perform computations for applying transformation persistence on specified matrices. | |
| virtual void | DumpJson (Standard_OStream &theOStream, int theDepth=-1) const |
| Dumps the content of me into the stream. | |
| Public Member Functions inherited from Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. | |
| virtual | ~Standard_Transient ()=default |
| Destructor must be virtual. | |
| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object. | |
| bool | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| Returns a true value if this is an instance of Type. | |
| bool | IsInstance (const char *const theTypeName) const |
| Returns a true value if this is an instance of TypeName. | |
| bool | 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. | |
| bool | IsKind (const char *const 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. | |
| 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. | |
| int | GetRefCount () const noexcept |
| Get the reference counter of this object. | |
| void | IncrementRefCounter () noexcept |
| Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations. | |
| int | DecrementRefCounter () noexcept |
| Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement. | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. | |
Additional Inherited Members | |
| Public Types inherited from Standard_Transient | |
| typedef void | base_type |
| Returns a type descriptor about this object. | |
| Static Public Member Functions inherited from Graphic3d_TransformPers | |
| static bool | IsZoomOrRotate (Graphic3d_TransModeFlags theMode) |
| Return true if specified mode is zoom/rotate transformation persistence. | |
| static bool | IsTrihedronOr2d (Graphic3d_TransModeFlags theMode) |
| Return true if specified mode is 2d/trihedron transformation persistence. | |
| static bool | IsOrthoPers (Graphic3d_TransModeFlags theMode) |
| Return true if specified mode is orthographic projection transformation persistence. | |
| static bool | IsAxial (Graphic3d_TransModeFlags theMode) |
| Return true if specified mode is axial transformation persistence. | |
| Static Public Member Functions inherited from Standard_Transient | |
| static constexpr const char * | get_type_name () |
| Returns a type descriptor about this object. | |
| static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
| Returns type descriptor of Standard_Transient class. | |
Transformation Zoom persistence with the above boundary of scale. This persistence works only when the camera scale value is below the scale value of this persistence. Otherwise, no persistence is applied.
| Graphic3d_TransformPersScaledAbove::Graphic3d_TransformPersScaledAbove | ( | const double | theScale, |
| const gp_Pnt & | thePnt ) |
Create a Zoom transformation persistence with an anchor 3D point and a scale value.
|
overridedefault |
Destructor.
|
overridevirtual |
Find scale value based on the camera position and view dimensions If the camera scale value less than the persistence scale, zoom persistence is not applied.
| [in] | theCamera | camera definition |
| [in] | theViewportWidth | the width of viewport. |
| [in] | theViewportHeight | the height of viewport. |
Reimplemented from Graphic3d_TransformPers.
1.10.0