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:
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| | SelectMgr_RectangularFrustum () |
| | Creates rectangular selecting frustum. More...
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| void | Init (const gp_Pnt2d &thePoint) |
| | Initializes volume according to the point and given pixel tolerance. More...
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| void | Init (const gp_Pnt2d &theMinPnt, const gp_Pnt2d &theMaxPnt) |
| | Initializes volume according to the selected rectangle. More...
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| Standard_Boolean | isIntersectCircle (const Standard_Real theRadius, const gp_Pnt &theCenter, const gp_Trsf &theTrsf, const TColgp_Array1OfPnt &theVertices) const |
| | Returns True if Frustum (theVertices) intersects the circle. More...
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| Standard_Boolean | 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. More...
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| virtual void | Build () override |
| | Builds volume according to internal parameters. NOTE: it should be called after Init() method. More...
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| virtual Standard_Boolean | IsScalable () const override |
| | Checks if it is possible to scale this frustum. It is true for frustum built on a single point. More...
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| virtual Handle< SelectMgr_BaseIntersector > | ScaleAndTransform (const Standard_Integer theScaleFactor, const gp_GTrsf &theTrsf, const 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: More...
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| virtual Standard_Boolean | OverlapsBox (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override |
| | SAT intersection test between defined volume and given axis-aligned box. More...
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| virtual Standard_Boolean | OverlapsBox (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *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. More...
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| virtual Standard_Boolean | OverlapsPoint (const gp_Pnt &thePnt, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override |
| | Intersection test between defined volume and given point. More...
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| virtual Standard_Boolean | OverlapsPoint (const gp_Pnt &thePnt) const override |
| | Intersection test between defined volume and given point. More...
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| virtual Standard_Boolean | OverlapsPolygon (const TColgp_Array1OfPnt &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. More...
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| virtual Standard_Boolean | 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. More...
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| 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 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. More...
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| virtual Standard_Boolean | OverlapsSphere (const gp_Pnt &theCenter, const Standard_Real theRadius, const SelectMgr_ViewClipRange &theClipRange, SelectBasics_PickResult &thePickResult) const override |
| | Intersection test between defined volume and given sphere. More...
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| virtual Standard_Boolean | OverlapsSphere (const gp_Pnt &theCenter, const Standard_Real theRadius, Standard_Boolean *theInside) const override |
| | Intersection test between defined volume and given sphere. More...
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| virtual Standard_Boolean | OverlapsCylinder (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, const Standard_Boolean 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. More...
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| virtual Standard_Boolean | OverlapsCylinder (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, const Standard_Boolean theIsHollow, Standard_Boolean *theInside=NULL) 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. More...
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| virtual Standard_Boolean | OverlapsCircle (const Standard_Real theBottomRad, const gp_Trsf &theTrsf, const Standard_Boolean 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(). More...
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| virtual Standard_Boolean | OverlapsCircle (const Standard_Real theBottomRad, const gp_Trsf &theTrsf, const Standard_Boolean theIsFilled, Standard_Boolean *theInside=NULL) 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(). More...
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| virtual Standard_Real | 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. More...
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| virtual gp_Pnt | DetectedPoint (const Standard_Real theDepth) const override |
| | Calculates the point on a view ray that was detected during the run of selection algo by given depth. More...
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| const gp_Pnt * | GetVertices () const |
| | A set of helper functions that return rectangular selecting frustum data. More...
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| virtual 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. More...
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| virtual 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. More...
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| virtual const gp_Dir & | GetViewRayDirection () const override |
| | Returns view ray direction. More...
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| virtual const gp_Pnt2d & | GetMousePosition () const override |
| | Returns current mouse coordinates. More...
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| virtual void | GetPlanes (NCollection_Vector< SelectMgr_Vec4 > &thePlaneEquations) const override |
| | Stores plane equation coefficients (in the following form: Ax + By + Cz + D = 0) to the given vector. More...
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| virtual void | DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const override |
| | Dumps the content of me into the stream. More...
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| | SelectMgr_Frustum () |
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| | SelectMgr_BaseFrustum () |
| | Creates new selecting volume with pixel tolerance set to 2, orthographic camera and empty frustum builder. More...
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| virtual | ~SelectMgr_BaseFrustum () |
| | Destructor. More...
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| void | SetBuilder (const Handle< SelectMgr_FrustumBuilder > &theBuilder) |
| | Nullifies the builder created in the constructor and copies the pointer given. More...
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| virtual void | SetCamera (const Handle< Graphic3d_Camera > &theCamera) override |
| | Saves camera definition and passes it to builder. More...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| | SelectMgr_BaseIntersector () |
| | Creates new empty selecting volume. More...
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| virtual | ~SelectMgr_BaseIntersector () |
| | Destructor. More...
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| SelectMgr_SelectionType | GetSelectionType () const |
| | Returns selection type of this intersector. More...
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| const Handle< Graphic3d_Camera > & | Camera () const |
| | Return camera definition. More...
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| 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...
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| virtual Standard_Boolean | RayCylinderIntersection (const Standard_Real theBottomRadius, const Standard_Real theTopRadius, const Standard_Real theHeight, const gp_Pnt &theLoc, const gp_Dir &theRayDir, const Standard_Boolean theIsHollow, 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 hollow cylinder (or cone) More...
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| virtual Standard_Boolean | RayCircleIntersection (const Standard_Real theRadius, const gp_Pnt &theLoc, const gp_Dir &theRayDir, const Standard_Boolean theIsFilled, Standard_Real &theTime) const |
| | Checks whether the ray that starts at the point theLoc and directs with the direction theRayDir intersects with the circle. More...
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 Public Member Functions inherited from Standard_Transient |
| | Standard_Transient () |
| | Empty constructor. More...
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| | Standard_Transient (const Standard_Transient &) |
| | Copy constructor – does nothing. More...
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| Standard_Transient & | operator= (const Standard_Transient &) |
| | Assignment operator, needed to avoid copying reference counter. More...
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| virtual | ~Standard_Transient () |
| | Destructor must be virtual. More...
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| virtual void | Delete () const |
| | Memory deallocator for transient classes. More...
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| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| | Returns a type descriptor about this object. More...
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| Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| | Returns a true value if this is an instance of Type. More...
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| Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| | Returns a true value if this is an instance of TypeName. More...
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| 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...
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| 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...
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| 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...
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| Standard_Integer | GetRefCount () const |
| | Get the reference counter of this object. More...
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| void | IncrementRefCounter () const |
| | Increments the reference counter of this object. More...
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| Standard_Integer | DecrementRefCounter () const |
| | Decrements the reference counter of this object; returns the decremented value. More...
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| void | segmentSegmentDistance (const gp_Pnt &theSegPnt1, const gp_Pnt &theSegPnt2, SelectBasics_PickResult &thePickResult) const |
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| bool | segmentPlaneIntersection (const gp_Vec &thePlane, const gp_Pnt &thePntOnPlane, SelectBasics_PickResult &thePickResult) const |
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| Standard_Boolean | hasBoxOverlap (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *theInside=NULL) const |
| | Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt. More...
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| Standard_Boolean | hasPointOverlap (const gp_Pnt &thePnt) const |
| | SAT intersection test between defined volume and given point. More...
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| Standard_Boolean | hasSegmentOverlap (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2) const |
| | SAT intersection test between defined volume and given segment. More...
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| Standard_Boolean | hasPolygonOverlap (const TColgp_Array1OfPnt &theArrayOfPnts, gp_Vec &theNormal) const |
| | SAT intersection test between frustum given and planar convex polygon represented as ordered point set. More...
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| Standard_Boolean | 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. More...
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| Standard_Boolean | hasSphereOverlap (const gp_Pnt &thePnt1, const Standard_Real theRadius, Standard_Boolean *theInside=NULL) const |
| | Intersection test between defined volume and given sphere. More...
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| Standard_Boolean | hasCylinderOverlap (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, const Standard_Boolean theIsHollow, Standard_Boolean *theInside=NULL) const |
| | Intersection test between defined volume and given cylinder (or cone). More...
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| Standard_Boolean | hasCircleOverlap (const Standard_Real theRadius, const gp_Trsf &theTrsf, const Standard_Boolean theIsFilled, Standard_Boolean *theInside=NULL) const |
| | Intersection test between defined volume and given circle. More...
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| Standard_Boolean | isInsideCylinderEndFace (const Standard_Real theBottomRad, const Standard_Real theTopRad, const Standard_Real theHeight, const gp_Trsf &theTrsf, const TColgp_Array1OfPnt &theVertices) const |
| | Returns True if all vertices (theVertices) are inside the top and bottom sides of the cylinder. More...
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| Standard_Boolean | isDotInside (const gp_Pnt &thePnt, const TColgp_Array1OfPnt &theVertices) const |
| | Checking whether the point thePnt is inside the shape with borders theVertices. thePnt and theVertices lie in the same plane. More...
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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).
