SelectMgr_RectangularFrustum Class Reference

This class contains representation of rectangular selecting frustum, created in case of point and box selection, and algorithms for overlap detection between selecting frustum and sensitive entities. The principle of frustum calculation: More...

#include <SelectMgr_RectangularFrustum.hxx>

Inheritance diagram for SelectMgr_RectangularFrustum:

Data Structures
struct	SelectionRectangle
	Auxiliary structure to define selection primitive (point or box) In case of point selection min and max points are identical. More...

Public Member Functions
	SelectMgr_RectangularFrustum ()
	Creates rectangular selecting frustum.
void	Init (const gp_Pnt2d &thePoint)
	Initializes volume according to the point and given pixel tolerance.
void	Init (const gp_Pnt2d &theMinPnt, const gp_Pnt2d &theMaxPnt)
	Initializes volume according to the selected rectangle.
bool	isIntersectCircle (const double theRadius, const gp_Pnt &theCenter, const gp_Trsf &theTrsf, const NCollection_Array1< gp_Pnt > &theVertices) const
	Returns True if Frustum (theVertices) intersects the circle.
bool	isSegmentsIntersect (const gp_Pnt &thePnt1Seg1, const gp_Pnt &thePnt2Seg1, const gp_Pnt &thePnt1Seg2, const gp_Pnt &thePnt2Seg2) const
	Returns True if Seg1 (thePnt1Seg1, thePnt2Seg1) and Seg2 (thePnt1Seg2, thePnt2Seg2) intersect.
void	Build () override
	Builds volume according to internal parameters. NOTE: it should be called after Init() method.
bool	IsScalable () const override
	Checks if it is possible to scale this frustum. It is true for frustum built on a single point.
occ::handle< SelectMgr_BaseIntersector >	ScaleAndTransform (const int theScaleFactor, const gp_GTrsf &theTrsf, const occ::handle< SelectMgr_FrustumBuilder > &theBuilder) const override
	IMPORTANT: Scaling makes sense only for frustum built on a single point! Note that this method does not perform any checks on type of the frustum. Returns a copy of the frustum resized according to the scale factor given and transforms it using the matrix given. There are no default parameters, but in case if:
occ::handle< SelectMgr_BaseIntersector >	CopyWithBuilder (const occ::handle< SelectMgr_FrustumBuilder > &theBuilder) const override
	Returns a copy of the frustum using the given frustum builder configuration. Returned frustum should be re-constructed before being used.
bool	OverlapsBox (const NCollection_Vec3< double > &theBoxMin, const NCollection_Vec3< double > &theBoxMax, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	SAT intersection test between defined volume and given axis-aligned box.
bool	OverlapsBox (const NCollection_Vec3< double > &theBoxMin, const NCollection_Vec3< double > &theBoxMax, bool *theInside) const override
	Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt.
bool	OverlapsPoint (const gp_Pnt &thePnt, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	Intersection test between defined volume and given point.
bool	OverlapsPoint (const gp_Pnt &thePnt) const override
	Intersection test between defined volume and given point.
bool	OverlapsPolygon (const NCollection_Array1< gp_Pnt > &theArrayOfPnts, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	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.
bool	OverlapsSegment (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	Checks if line segment overlaps selecting frustum.
bool	OverlapsTriangle (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const gp_Pnt &thePnt3, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	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.
bool	OverlapsSphere (const gp_Pnt &theCenter, const double theRadius, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	Intersection test between defined volume and given sphere.
bool	OverlapsSphere (const gp_Pnt &theCenter, const double theRadius, bool *theInside) const override
	Intersection test between defined volume and given sphere.
bool	OverlapsCylinder (const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf &theTrsf, const bool theIsHollow, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf.
bool	OverlapsCylinder (const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf &theTrsf, const bool theIsHollow, bool *theInside=nullptr) const override
	Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf.
bool	OverlapsCircle (const double theBottomRad, const gp_Trsf &theTrsf, const bool theIsFilled, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override
	Returns true if selecting volume is overlapped by circle with radius theRadius, boolean theIsFilled and transformation to apply theTrsf. The position and orientation of the circle are specified via theTrsf transformation for gp::XOY() with center in gp::Origin().
bool	OverlapsCircle (const double theBottomRad, const gp_Trsf &theTrsf, const bool theIsFilled, bool *theInside=nullptr) const override
	Returns true if selecting volume is overlapped by circle with radius theRadius, boolean theIsFilled and transformation to apply theTrsf. The position and orientation of the circle are specified via theTrsf transformation for gp::XOY() with center in gp::Origin().
double	DistToGeometryCenter (const gp_Pnt &theCOG) const override
	Measures distance between 3d projection of user-picked screen point and given point theCOG. It makes sense only for frustums built on a single point.
gp_Pnt	DetectedPoint (const double theDepth) const override
	Calculates the point on a view ray that was detected during the run of selection algo by given depth.
const gp_Pnt *	GetVertices () const
	A set of helper functions that return rectangular selecting frustum data.
const gp_Pnt &	GetNearPnt () const override
	Returns projection of 2d mouse picked point or projection of center of 2d rectangle (for point and rectangular selection correspondingly) onto near view frustum plane.
const gp_Pnt &	GetFarPnt () const override
	Returns projection of 2d mouse picked point or projection of center of 2d rectangle (for point and rectangular selection correspondingly) onto far view frustum plane.
const gp_Dir &	GetViewRayDirection () const override
	Returns view ray direction.
const gp_Pnt2d &	GetMousePosition () const override
	Returns current mouse coordinates.
void	GetPlanes (NCollection_DynamicArray< NCollection_Vec4< double > > &thePlaneEquations) const override
	Stores plane equation coefficients (in the following form: Ax + By + Cz + D = 0) to the given vector.
void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const override
	Dumps the content of me into the stream.
Public Member Functions inherited from SelectMgr_Frustum< 4 >
	SelectMgr_Frustum ()
Public Member Functions inherited from SelectMgr_BaseFrustum
	SelectMgr_BaseFrustum ()
	Creates new selecting volume with pixel tolerance set to 2, orthographic camera and empty frustum builder.
	~SelectMgr_BaseFrustum () override=default
	Destructor.
void	SetBuilder (const occ::handle< SelectMgr_FrustumBuilder > &theBuilder)
	Nullifies the builder created in the constructor and copies the pointer given.
void	SetCamera (const occ::handle< Graphic3d_Camera > &theCamera) override
	Saves camera definition and passes it to builder.
void	SetPixelTolerance (const int 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.
void	SetWindowSize (const int theWidth, const int theHeight) override
	Sets current window size. This method does nothing for the base class.
void	WindowSize (int &theWidth, int &theHeight) const override
	Returns current window size. This method doesn't set any output values for the base class.
void	SetViewport (const double theX, const double theY, const double theWidth, const double theHeight) override
	Passes viewport parameters to builder.
bool	IsBoundaryIntersectSphere (const gp_Pnt &theCenter, const double theRadius, const gp_Dir &thePlaneNormal, const NCollection_Array1< gp_Pnt > &theBoundaries, bool &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.
Public Member Functions inherited from SelectMgr_BaseIntersector
	SelectMgr_BaseIntersector ()
	Creates new empty selecting volume.
	~SelectMgr_BaseIntersector () override
	Destructor.
SelectMgr_SelectionType	GetSelectionType () const
	Returns selection type of this intersector.
const occ::handle< Graphic3d_Camera > &	Camera () const
	Return camera definition.
virtual bool	RaySphereIntersection (const gp_Pnt &theCenter, const double theRadius, const gp_Pnt &theLoc, const gp_Dir &theRayDir, double &theTimeEnter, double &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.
virtual bool	RayCylinderIntersection (const double theBottomRadius, const double theTopRadius, const double theHeight, const gp_Pnt &theLoc, const gp_Dir &theRayDir, const bool theIsHollow, double &theTimeEnter, double &theTimeLeave) const
	Checks whether the ray that starts at the point theLoc and directs with the direction theRayDir intersects with the hollow cylinder (or cone)
virtual bool	RayCircleIntersection (const double theRadius, const gp_Pnt &theLoc, const gp_Dir &theRayDir, const bool theIsFilled, double &theTime) const
	Checks whether the ray that starts at the point theLoc and directs with the direction theRayDir intersects with the circle.
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.

Protected Member Functions
void	segmentSegmentDistance (const gp_Pnt &theSegPnt1, const gp_Pnt &theSegPnt2, SelectBasics_PickResult &thePickResult) const
bool	segmentPlaneIntersection (const gp_Vec &thePlane, const gp_Pnt &thePntOnPlane, SelectBasics_PickResult &thePickResult) const
Protected Member Functions inherited from SelectMgr_Frustum< 4 >
bool	hasBoxOverlap (const NCollection_Vec3< double > &theBoxMin, const NCollection_Vec3< double > &theBoxMax, bool *theInside=nullptr) const
	Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt.
bool	hasPointOverlap (const gp_Pnt &thePnt) const
	SAT intersection test between defined volume and given point.
bool	hasSegmentOverlap (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2) const
	SAT intersection test between defined volume and given segment.
bool	hasPolygonOverlap (const NCollection_Array1< gp_Pnt > &theArrayOfPnts, gp_Vec &theNormal) const
	SAT intersection test between frustum given and planar convex polygon represented as ordered point set.
bool	hasTriangleOverlap (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const gp_Pnt &thePnt3, gp_Vec &theNormal) const
	SAT intersection test between defined volume and given triangle.
bool	hasSphereOverlap (const gp_Pnt &thePnt1, const double theRadius, bool *theInside=nullptr) const
	Intersection test between defined volume and given sphere.
bool	hasCylinderOverlap (const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf &theTrsf, const bool theIsHollow, bool *theInside=nullptr) const
	Intersection test between defined volume and given cylinder (or cone).
bool	hasCircleOverlap (const double theRadius, const gp_Trsf &theTrsf, const bool theIsFilled, bool *theInside=nullptr) const
	Intersection test between defined volume and given circle.
bool	isInsideCylinderEndFace (const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf &theTrsf, const NCollection_Array1< gp_Pnt > &theVertices) const
	Returns True if all vertices (theVertices) are inside the top and bottom sides of the cylinder.
bool	isDotInside (const gp_Pnt &thePnt, const NCollection_Array1< gp_Pnt > &theVertices) const
	Checking whether the point thePnt is inside the shape with borders theVertices. thePnt and theVertices lie in the same plane.

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 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.
Protected Attributes inherited from SelectMgr_Frustum< 4 >
gp_Vec	myPlanes [N+2]
	Plane equations.
gp_Pnt	myVertices [N *2]
	Vertices coordinates.
double	myMaxVertsProjections [N+2]
	Cached projections of vertices onto frustum plane directions.
double	myMinVertsProjections [N+2]
	Cached projections of vertices onto frustum plane directions.
double	myMaxOrthoVertsProjections [3]
	Cached projections of vertices onto directions of ortho unit vectors.
double	myMinOrthoVertsProjections [3]
	Cached projections of vertices onto directions of ortho unit vectors.
gp_Vec	myEdgeDirs [6]
	Cached edge directions.
Protected Attributes inherited from SelectMgr_BaseFrustum
int	myPixelTolerance
	Pixel tolerance.
occ::handle< SelectMgr_FrustumBuilder >	myBuilder
	A tool implementing methods for volume build.
Protected Attributes inherited from SelectMgr_BaseIntersector
occ::handle< Graphic3d_Camera >	myCamera
	camera definition (if builder isn't NULL it is the same as its camera)
SelectMgr_SelectionType	mySelectionType
	type of selection

Detailed Description

This class contains representation of rectangular selecting frustum, created in case of point and box selection, and algorithms for overlap detection between selecting frustum and sensitive entities. The principle of frustum calculation:

• for point selection: on a near view frustum plane rectangular neighborhood of user-picked point is created according to the pixel tolerance given and then this rectangle is projected onto far view frustum plane. This rectangles define the parallel bases of selecting frustum;
• for box selection: box points are projected onto near and far view frustum planes. These 2 projected rectangles define parallel bases of selecting frustum. Overlap detection tests are implemented according to the terms of separating axis theorem (SAT).

Constructor & Destructor Documentation

SelectMgr_RectangularFrustum()

SelectMgr_RectangularFrustum::SelectMgr_RectangularFrustum

(

)

Creates rectangular selecting frustum.

Member Function Documentation

Build()

void SelectMgr_RectangularFrustum::Build ( )

overridevirtual

Builds volume according to internal parameters. NOTE: it should be called after Init() method.

Implements SelectMgr_BaseIntersector.

CopyWithBuilder()

occ::handle< SelectMgr_BaseIntersector > SelectMgr_RectangularFrustum::CopyWithBuilder ( const occ::handle< SelectMgr_FrustumBuilder > & theBuilder ) const

overridevirtual

Returns a copy of the frustum using the given frustum builder configuration. Returned frustum should be re-constructed before being used.

Parameters

[in]

theBuilder

argument that represents corresponding settings for re-constructing transformed frustum from scratch; should NOT be NULL.

Returns

a copy of the frustum with the input builder assigned

Implements SelectMgr_BaseIntersector.

DetectedPoint()

gp_Pnt SelectMgr_RectangularFrustum::DetectedPoint ( const double theDepth ) const

overridevirtual

Calculates the point on a view ray that was detected during the run of selection algo by given depth.

Reimplemented from SelectMgr_BaseIntersector.

DistToGeometryCenter()

double SelectMgr_RectangularFrustum::DistToGeometryCenter ( const gp_Pnt & theCOG ) const

overridevirtual

Measures distance between 3d projection of user-picked screen point and given point theCOG. It makes sense only for frustums built on a single point.

Reimplemented from SelectMgr_BaseIntersector.

DumpJson()

void SelectMgr_RectangularFrustum::DumpJson ( Standard_OStream & theOStream, int theDepth = -1 ) const

overridevirtual

Dumps the content of me into the stream.

Reimplemented from SelectMgr_Frustum< 4 >.

GetFarPnt()

const gp_Pnt & SelectMgr_RectangularFrustum::GetFarPnt ( ) const

inlineoverridevirtual

Returns projection of 2d mouse picked point or projection of center of 2d rectangle (for point and rectangular selection correspondingly) onto far view frustum plane.

Reimplemented from SelectMgr_BaseIntersector.

GetMousePosition()

const gp_Pnt2d & SelectMgr_RectangularFrustum::GetMousePosition ( ) const

overridevirtual

Returns current mouse coordinates.

Reimplemented from SelectMgr_BaseIntersector.

GetNearPnt()

const gp_Pnt & SelectMgr_RectangularFrustum::GetNearPnt ( ) const

inlineoverridevirtual

Returns projection of 2d mouse picked point or projection of center of 2d rectangle (for point and rectangular selection correspondingly) onto near view frustum plane.

Reimplemented from SelectMgr_BaseIntersector.

GetPlanes()

void SelectMgr_RectangularFrustum::GetPlanes ( NCollection_DynamicArray< NCollection_Vec4< double > > & thePlaneEquations ) const

overridevirtual

Stores plane equation coefficients (in the following form: Ax + By + Cz + D = 0) to the given vector.

Reimplemented from SelectMgr_BaseIntersector.

GetVertices()

const gp_Pnt * SelectMgr_RectangularFrustum::GetVertices ( ) const

inline

A set of helper functions that return rectangular selecting frustum data.

GetViewRayDirection()

const gp_Dir & SelectMgr_RectangularFrustum::GetViewRayDirection ( ) const

inlineoverridevirtual

Returns view ray direction.

Reimplemented from SelectMgr_BaseIntersector.

Init() [1/2]

void SelectMgr_RectangularFrustum::Init	(	const gp_Pnt2d &	theMinPnt,
		const gp_Pnt2d &	theMaxPnt )

Initializes volume according to the selected rectangle.

Init() [2/2]

void SelectMgr_RectangularFrustum::Init

(

const gp_Pnt2d &

thePoint

)

Initializes volume according to the point and given pixel tolerance.

isIntersectCircle()

bool SelectMgr_RectangularFrustum::isIntersectCircle	(	const double	theRadius,
		const gp_Pnt &	theCenter,
		const gp_Trsf &	theTrsf,
		const NCollection_Array1< gp_Pnt > &	theVertices ) const

Returns True if Frustum (theVertices) intersects the circle.

IsScalable()

bool SelectMgr_RectangularFrustum::IsScalable ( ) const

overridevirtual

Checks if it is possible to scale this frustum. It is true for frustum built on a single point.

Implements SelectMgr_BaseIntersector.

isSegmentsIntersect()

bool SelectMgr_RectangularFrustum::isSegmentsIntersect	(	const gp_Pnt &	thePnt1Seg1,
		const gp_Pnt &	thePnt2Seg1,
		const gp_Pnt &	thePnt1Seg2,
		const gp_Pnt &	thePnt2Seg2 ) const

Returns True if Seg1 (thePnt1Seg1, thePnt2Seg1) and Seg2 (thePnt1Seg2, thePnt2Seg2) intersect.

OverlapsBox() [1/2]

bool SelectMgr_RectangularFrustum::OverlapsBox ( const NCollection_Vec3< double > & theBoxMin, const NCollection_Vec3< double > & theBoxMax, bool * theInside ) const

overridevirtual

Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt.

Implements SelectMgr_BaseIntersector.

OverlapsBox() [2/2]

bool SelectMgr_RectangularFrustum::OverlapsBox ( const NCollection_Vec3< double > & theBoxMin, const NCollection_Vec3< double > & theBoxMax, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

SAT intersection test between defined volume and given axis-aligned box.

Implements SelectMgr_BaseIntersector.

OverlapsCircle() [1/2]

bool SelectMgr_RectangularFrustum::OverlapsCircle ( const double theBottomRad, const gp_Trsf & theTrsf, const bool theIsFilled, bool * theInside = nullptr ) const

overridevirtual

Returns true if selecting volume is overlapped by circle with radius theRadius, boolean theIsFilled and transformation to apply theTrsf. The position and orientation of the circle are specified via theTrsf transformation for gp::XOY() with center in gp::Origin().

Implements SelectMgr_BaseIntersector.

OverlapsCircle() [2/2]

bool SelectMgr_RectangularFrustum::OverlapsCircle ( const double theBottomRad, const gp_Trsf & theTrsf, const bool theIsFilled, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

Returns true if selecting volume is overlapped by circle with radius theRadius, boolean theIsFilled and transformation to apply theTrsf. The position and orientation of the circle are specified via theTrsf transformation for gp::XOY() with center in gp::Origin().

Implements SelectMgr_BaseIntersector.

OverlapsCylinder() [1/2]

bool SelectMgr_RectangularFrustum::OverlapsCylinder ( const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf & theTrsf, const bool theIsHollow, bool * theInside = nullptr ) const

overridevirtual

Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf.

Implements SelectMgr_BaseIntersector.

OverlapsCylinder() [2/2]

bool SelectMgr_RectangularFrustum::OverlapsCylinder ( const double theBottomRad, const double theTopRad, const double theHeight, const gp_Trsf & theTrsf, const bool theIsHollow, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

Returns true if selecting volume is overlapped by cylinder (or cone) with radiuses theBottomRad and theTopRad, height theHeight and transformation to apply theTrsf.

Implements SelectMgr_BaseIntersector.

OverlapsPoint() [1/2]

bool SelectMgr_RectangularFrustum::OverlapsPoint ( const gp_Pnt & thePnt ) const

overridevirtual

Intersection test between defined volume and given point.

Implements SelectMgr_BaseIntersector.

OverlapsPoint() [2/2]

bool SelectMgr_RectangularFrustum::OverlapsPoint ( const gp_Pnt & thePnt, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

Intersection test between defined volume and given point.

Implements SelectMgr_BaseIntersector.

OverlapsPolygon()

bool SelectMgr_RectangularFrustum::OverlapsPolygon ( const NCollection_Array1< gp_Pnt > & theArrayOfPnts, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

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.

Implements SelectMgr_BaseIntersector.

OverlapsSegment()

bool SelectMgr_RectangularFrustum::OverlapsSegment ( const gp_Pnt & thePnt1, const gp_Pnt & thePnt2, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

Checks if line segment overlaps selecting frustum.

Implements SelectMgr_BaseIntersector.

OverlapsSphere() [1/2]

bool SelectMgr_RectangularFrustum::OverlapsSphere ( const gp_Pnt & theCenter, const double theRadius, bool * theInside ) const

overridevirtual

Intersection test between defined volume and given sphere.

Implements SelectMgr_BaseIntersector.

OverlapsSphere() [2/2]

bool SelectMgr_RectangularFrustum::OverlapsSphere ( const gp_Pnt & theCenter, const double theRadius, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

Intersection test between defined volume and given sphere.

Implements SelectMgr_BaseIntersector.

OverlapsTriangle()

bool SelectMgr_RectangularFrustum::OverlapsTriangle ( const gp_Pnt & thePnt1, const gp_Pnt & thePnt2, const gp_Pnt & thePnt3, Select3D_TypeOfSensitivity theSensType, const SelectMgr_ViewClipRange & theClipRange, SelectBasics_PickResult & thePickResult ) const

overridevirtual

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.

Implements SelectMgr_BaseIntersector.

ScaleAndTransform()

occ::handle< SelectMgr_BaseIntersector > SelectMgr_RectangularFrustum::ScaleAndTransform ( const int theScaleFactor, const gp_GTrsf & theTrsf, const occ::handle< SelectMgr_FrustumBuilder > & theBuilder ) const

overridevirtual

IMPORTANT: Scaling makes sense only for frustum built on a single point! Note that this method does not perform any checks on type of the frustum. Returns a copy of the frustum resized according to the scale factor given and transforms it using the matrix given. There are no default parameters, but in case if:

• transformation only is needed: @theScaleFactor must be initialized as any negative value;
• scale only is needed: @theTrsf must be set to gp_Identity. Builder is an optional argument that represents corresponding settings for re-constructing transformed frustum from scratch. Can be null if reconstruction is not expected furthermore.

Implements SelectMgr_BaseIntersector.

segmentPlaneIntersection()

bool SelectMgr_RectangularFrustum::segmentPlaneIntersection ( const gp_Vec & thePlane, const gp_Pnt & thePntOnPlane, SelectBasics_PickResult & thePickResult ) const

protected

segmentSegmentDistance()

void SelectMgr_RectangularFrustum::segmentSegmentDistance ( const gp_Pnt & theSegPnt1, const gp_Pnt & theSegPnt2, SelectBasics_PickResult & thePickResult ) const

protected

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

• SelectMgr_RectangularFrustum.hxx