Open CASCADE Technology  7.7.0.dev
Public Member Functions | Protected Attributes

SelectMgr_BaseFrustum Class Reference

This class is an interface for different types of selecting frustums, defining different selection types, like point, box or polyline selection. It contains signatures of functions for detection of overlap by sensitive entity and initializes some data for building the selecting frustum. More...

#include <SelectMgr_BaseFrustum.hxx>

Inheritance diagram for SelectMgr_BaseFrustum:
Inheritance graph
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Public Member Functions

 SelectMgr_BaseFrustum ()
 Creates new selecting volume with pixel tolerance set to 2, orthographic camera and empty frustum builder. More...
 
virtual ~SelectMgr_BaseFrustum ()
 Destructor. More...
 
void SetBuilder (const Handle< SelectMgr_FrustumBuilder > &theBuilder)
 Nullifies the builder created in the constructor and copies the pointer given. More...
 
virtual void SetCamera (const Handle< Graphic3d_Camera > &theCamera) override
 Saves camera definition and passes it to builder. More...
 
virtual void SetPixelTolerance (const Standard_Integer theTol) override
 Sets pixel tolerance. It makes sense only for scalable intersectors (built on a single point). This method does nothing for the base class. More...
 
virtual void SetWindowSize (const Standard_Integer theWidth, const Standard_Integer theHeight) override
 Sets current window size. This method does nothing for the base class. More...
 
virtual void WindowSize (Standard_Integer &theWidth, Standard_Integer &theHeight) const override
 Returns current window size. This method doesn't set any output values for the base class. More...
 
virtual void SetViewport (const Standard_Real theX, const Standard_Real theY, const Standard_Real theWidth, const Standard_Real theHeight) override
 Passes viewport parameters to builder. More...
 
Standard_Boolean IsBoundaryIntersectSphere (const gp_Pnt &theCenter, const Standard_Real theRadius, const gp_Dir &thePlaneNormal, const TColgp_Array1OfPnt &theBoundaries, Standard_Boolean &theBoundaryInside) const
 Checks whether the boundary of the current volume selection intersects with a sphere or are there it's boundaries lying inside the sphere. More...
 
virtual void DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const override
 Dumps the content of me into the stream. More...
 
- Public Member Functions inherited from SelectMgr_BaseIntersector
 SelectMgr_BaseIntersector ()
 Creates new empty selecting volume. More...
 
virtual ~SelectMgr_BaseIntersector ()
 Destructor. More...
 
virtual void Build ()=0
 Builds intersector according to internal parameters. More...
 
SelectMgr_SelectionType GetSelectionType () const
 Returns selection type of this intersector. More...
 
virtual Standard_Boolean IsScalable () const =0
 Checks if it is possible to scale this intersector. More...
 
virtual Handle< SelectMgr_BaseIntersectorScaleAndTransform (const Standard_Integer theScaleFactor, const gp_GTrsf &theTrsf, const Handle< SelectMgr_FrustumBuilder > &theBuilder) const =0
 Note that this method does not perform any checks on type of the frustum. More...
 
const Handle< Graphic3d_Camera > & Camera () const
 Return camera definition. More...
 
virtual const gp_PntGetNearPnt () const
 Returns near point of intersector. This method returns zero point for the base class. More...
 
virtual const gp_PntGetFarPnt () const
 Returns far point of intersector. This method returns zero point for the base class. More...
 
virtual const gp_DirGetViewRayDirection () const
 Returns direction ray of intersector. This method returns zero direction for the base class. More...
 
virtual const gp_Pnt2dGetMousePosition () const
 Returns current mouse coordinates. This method returns infinite point for the base class. More...
 
virtual void GetPlanes (NCollection_Vector< SelectMgr_Vec4 > &thePlaneEquations) const
 Stores plane equation coefficients (in the following form: Ax + By + Cz + D = 0) to the given vector. This method only clears input vector for the base class. More...
 
virtual Standard_Boolean OverlapsBox (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 SAT intersection test between defined volume and given axis-aligned box. More...
 
virtual Standard_Boolean OverlapsBox (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *theInside=NULL) const =0
 Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt. More...
 
virtual Standard_Boolean OverlapsPoint (const gp_Pnt &thePnt, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 Intersection test between defined volume and given point. More...
 
virtual Standard_Boolean OverlapsPoint (const gp_Pnt &thePnt) const =0
 Intersection test between defined volume and given point Does not perform depth calculation, so this method is defined as helper function for inclusion test. Therefore, its implementation makes sense only for rectangular frustum with box selection mode activated. More...
 
virtual Standard_Boolean OverlapsPolygon (const TColgp_Array1OfPnt &theArrayOfPnts, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 SAT intersection test between defined volume and given ordered set of points, representing line segments. The test may be considered of interior part or boundary line defined by segments depending on given sensitivity type. More...
 
virtual Standard_Boolean OverlapsSegment (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 Checks if line segment overlaps selecting frustum. More...
 
virtual Standard_Boolean OverlapsTriangle (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const gp_Pnt &thePnt3, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 SAT intersection test between defined volume and given triangle. The test may be considered of interior part or boundary line defined by triangle vertices depending on given sensitivity type. More...
 
virtual Standard_Boolean OverlapsSphere (const gp_Pnt &theCenter, const Standard_Real theRadius, Standard_Boolean *theInside=NULL) const =0
 Returns true if selecting volume is overlapped by sphere with center theCenter and radius theRadius. More...
 
virtual Standard_Boolean OverlapsSphere (const gp_Pnt &theCenter, const Standard_Real theRadius, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 Returns true if selecting volume is overlapped by sphere with center theCenter and radius theRadius. More...
 
virtual Standard_Boolean OverlapsCylinder (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const =0
 Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf. More...
 
virtual Standard_Boolean OverlapsCylinder (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, Standard_Boolean *theInside=NULL) const =0
 Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf. More...
 
virtual Standard_Real DistToGeometryCenter (const gp_Pnt &theCOG) const
 Measures distance between 3d projection of user-picked screen point and given point theCOG. It makes sense only for intersectors built on a single point. This method returns infinite value for the base class. More...
 
virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const
 Calculates the point on a view ray that was detected during the run of selection algo by given depth. It makes sense only for intersectors built on a single point. This method returns infinite point for the base class. More...
 
virtual Standard_Boolean RaySphereIntersection (const gp_Pnt &theCenter, const Standard_Real theRadius, const gp_Pnt &theLoc, const gp_Dir &theRayDir, Standard_Real &theTimeEnter, Standard_Real &theTimeLeave) const
 Checks whether the ray that starts at the point theLoc and directs with the direction theRayDir intersects with the sphere with center at theCenter and radius TheRadius. More...
 
virtual Standard_Boolean RayCylinderIntersection (const Standard_Real theBottomRadius, const Standard_Real theTopRadius, const Standard_Real theHeight, const gp_Pnt &theLoc, const gp_Dir &theRayDir, Standard_Real &theTimeEnter, Standard_Real &theTimeLeave) const
 Checks whether the ray that starts at the point theLoc and directs with the direction theRayDir intersects with the cylinder (or cone) with radiuses theBottomRad and theTopRad and height theHeights. 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 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_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...
 

Protected Attributes

Standard_Integer myPixelTolerance
 Pixel tolerance. More...
 
Handle< SelectMgr_FrustumBuildermyBuilder
 A tool implementing methods for volume build. More...
 
- Protected Attributes inherited from SelectMgr_BaseIntersector
Handle< Graphic3d_CameramyCamera
 camera definition (if builder isn't NULL it is the same as its camera) More...
 
SelectMgr_SelectionType mySelectionType
 type of selection 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...
 

Detailed Description

This class is an interface for different types of selecting frustums, defining different selection types, like point, box or polyline selection. It contains signatures of functions for detection of overlap by sensitive entity and initializes some data for building the selecting frustum.

Constructor & Destructor Documentation

◆ SelectMgr_BaseFrustum()

SelectMgr_BaseFrustum::SelectMgr_BaseFrustum ( )

Creates new selecting volume with pixel tolerance set to 2, orthographic camera and empty frustum builder.

◆ ~SelectMgr_BaseFrustum()

virtual SelectMgr_BaseFrustum::~SelectMgr_BaseFrustum ( )
inlinevirtual

Destructor.

Member Function Documentation

◆ DumpJson()

virtual void SelectMgr_BaseFrustum::DumpJson ( Standard_OStream theOStream,
Standard_Integer  theDepth = -1 
) const
overridevirtual

◆ IsBoundaryIntersectSphere()

Standard_Boolean SelectMgr_BaseFrustum::IsBoundaryIntersectSphere ( const gp_Pnt theCenter,
const Standard_Real  theRadius,
const gp_Dir thePlaneNormal,
const TColgp_Array1OfPnt theBoundaries,
Standard_Boolean theBoundaryInside 
) const

Checks whether the boundary of the current volume selection intersects with a sphere or are there it's boundaries lying inside the sphere.

◆ SetBuilder()

void SelectMgr_BaseFrustum::SetBuilder ( const Handle< SelectMgr_FrustumBuilder > &  theBuilder)

Nullifies the builder created in the constructor and copies the pointer given.

◆ SetCamera()

virtual void SelectMgr_BaseFrustum::SetCamera ( const Handle< Graphic3d_Camera > &  theCamera)
overridevirtual

Saves camera definition and passes it to builder.

Reimplemented from SelectMgr_BaseIntersector.

◆ SetPixelTolerance()

virtual void SelectMgr_BaseFrustum::SetPixelTolerance ( const Standard_Integer  theTol)
overridevirtual

Sets pixel tolerance. It makes sense only for scalable intersectors (built on a single point). This method does nothing for the base class.

Reimplemented from SelectMgr_BaseIntersector.

◆ SetViewport()

virtual void SelectMgr_BaseFrustum::SetViewport ( const Standard_Real  theX,
const Standard_Real  theY,
const Standard_Real  theWidth,
const Standard_Real  theHeight 
)
overridevirtual

Passes viewport parameters to builder.

Reimplemented from SelectMgr_BaseIntersector.

◆ SetWindowSize()

virtual void SelectMgr_BaseFrustum::SetWindowSize ( const Standard_Integer  theWidth,
const Standard_Integer  theHeight 
)
overridevirtual

Sets current window size. This method does nothing for the base class.

Reimplemented from SelectMgr_BaseIntersector.

◆ WindowSize()

virtual void SelectMgr_BaseFrustum::WindowSize ( Standard_Integer theWidth,
Standard_Integer theHeight 
) const
overridevirtual

Returns current window size. This method doesn't set any output values for the base class.

Reimplemented from SelectMgr_BaseIntersector.

Field Documentation

◆ myBuilder

Handle< SelectMgr_FrustumBuilder > SelectMgr_BaseFrustum::myBuilder
protected

A tool implementing methods for volume build.

◆ myPixelTolerance

Standard_Integer SelectMgr_BaseFrustum::myPixelTolerance
protected

Pixel tolerance.


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