This class contains representation of triangular selecting frustum, created in case of polyline selection, and algorithms for overlap detection between selecting frustum and sensitive entities. Overlap detection tests are implemented according to the terms of separating axis theorem (SAT). More...
#include <SelectMgr_TriangularFrustum.hxx>
Inheritance diagram for SelectMgr_TriangularFrustum:
Public Member Functions | |
| SelectMgr_TriangularFrustum () | |
| Creates new triangular frustum with bases of triangles with vertices theP1, theP2 and theP3 projections onto near and far view frustum planes. More... | |
| ~SelectMgr_TriangularFrustum () | |
| virtual void | Build (const gp_Pnt2d &theP1, const gp_Pnt2d &theP2, const gp_Pnt2d &theP3) override |
| Creates new triangular frustum with bases of triangles with vertices theP1, theP2 and theP3 projections onto near and far view frustum planes (only for triangular frustums) More... | |
| virtual Handle< SelectMgr_BaseFrustum > | ScaleAndTransform (const Standard_Integer theScale, const gp_GTrsf &theTrsf) const override |
| Returns a copy of the frustum transformed according to the matrix given. More... | |
| virtual Standard_Boolean | Overlaps (const SelectMgr_Vec3 &theMinPnt, const SelectMgr_Vec3 &theMaxPnt, Standard_Real &theDepth) override |
| SAT intersection test between defined volume and given axis-aligned box. More... | |
| virtual Standard_Boolean | Overlaps (const SelectMgr_Vec3 &theMinPt, const SelectMgr_Vec3 &theMaxPt, Standard_Boolean *theInside) 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... | |
| virtual Standard_Boolean | Overlaps (const gp_Pnt &thePnt, Standard_Real &theDepth) override |
| Intersection test between defined volume and given point. More... | |
| virtual Standard_Boolean | Overlaps (const TColgp_Array1OfPnt &theArrayOfPnts, Select3D_TypeOfSensitivity theSensType, Standard_Real &theDepth) 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... | |
| virtual Standard_Boolean | Overlaps (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, Standard_Real &theDepth) override |
| Checks if line segment overlaps selecting frustum. More... | |
| virtual Standard_Boolean | Overlaps (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const gp_Pnt &thePnt3, Select3D_TypeOfSensitivity theSensType, Standard_Real &theDepth) 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... | |
| void | Clear () |
| Nullifies the handle to corresponding builder instance to prevent memory leaks. More... | |
| 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... | |
 Public Member Functions inherited from SelectMgr_Frustum< 3 > | |
| SelectMgr_Frustum () | |
| Public Member Functions inherited from SelectMgr_BaseFrustum | |
| SelectMgr_BaseFrustum () | |
| Creates new selecting volume with pixel toletance set to 2, orthographic camera and empty frustum builder. More... | |
| virtual | ~SelectMgr_BaseFrustum () |
| const Handle< Graphic3d_Camera > & | Camera () const |
| Return camera definition. More... | |
| void | SetCamera (const Handle< Graphic3d_Camera > &theCamera) |
| Passes camera projection and orientation matrices to builder. More... | |
| void | SetCamera (const Graphic3d_Mat4d &theProjection, const Graphic3d_Mat4d &theWorldView, const Standard_Boolean theIsOrthographic, const Graphic3d_WorldViewProjState &theWVPState=Graphic3d_WorldViewProjState()) |
| Passes camera projection and orientation matrices to builder. More... | |
| const Graphic3d_Mat4d & | ProjectionMatrix () const |
| const Graphic3d_Mat4d & | WorldViewMatrix () const |
| const Graphic3d_WorldViewProjState & | WorldViewProjState () const |
| void | SetPixelTolerance (const Standard_Integer theTol) |
| void | SetWindowSize (const Standard_Integer theWidth, const Standard_Integer theHeight) |
| void | WindowSize (Standard_Integer &theWidth, Standard_Integer &theHeight) const |
| void | SetViewport (const Standard_Real theX, const Standard_Real theY, const Standard_Real theWidth, const Standard_Real theHeight) |
| Passes viewport parameters to builder. More... | |
| void | SetBuilder (const Handle< SelectMgr_FrustumBuilder > &theBuilder) |
| Nullifies the builder created in the constructor and copies the pointer given. More... | |
| virtual void | Build (const gp_Pnt2d &) |
| Builds volume according to the point and given pixel tolerance. More... | |
| virtual void | Build (const gp_Pnt2d &, const gp_Pnt2d &) |
| Builds volume according to the selected rectangle. More... | |
| virtual void | Build (const TColgp_Array1OfPnt2d &) |
| Builds selecting volumes set according to polyline points. More... | |
| virtual Standard_Boolean | Overlaps (const gp_Pnt &thePnt) |
| 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_Real | DistToGeometryCenter (const gp_Pnt &theCOG) |
| Measures distance between 3d projection of user-picked screen point and given point theCOG. More... | |
| virtual gp_Pnt | DetectedPoint (const Standard_Real theDepth) const |
| virtual Standard_Boolean | IsClipped (const Graphic3d_SequenceOfHClipPlane &thePlanes, const Standard_Real theDepth) |
| Checks if the point of sensitive in which selection was detected belongs to the region defined by clipping planes. More... | |
| virtual void | SetViewClipping (const Handle< Graphic3d_SequenceOfHClipPlane > &) |
| Valid for point selection only! Computes depth range for global (defined for the whole view) clipping planes. More... | |
| virtual Standard_Boolean | SetViewClippingEnabled (const Standard_Boolean) |
| Set if view clipping plane is enabled or not. 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 SelectMgr_Frustum< 3 > | |
| Standard_Boolean | hasOverlap (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *theInside=NULL) |
| Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt. More... | |
| Standard_Boolean | hasOverlap (const gp_Pnt &thePnt) |
| SAT intersection test between defined volume and given point. More... | |
| Standard_Boolean | hasOverlap (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2) |
| SAT intersection test between defined volume and given segment. More... | |
| Standard_Boolean | hasOverlap (const TColgp_Array1OfPnt &theArrayOfPnts, gp_Vec &theNormal) |
| SAT intersection test between frustum given and planar convex polygon represented as ordered point set. More... | |
| Standard_Boolean | hasOverlap (const gp_Pnt &thePnt1, const gp_Pnt &thePnt2, const gp_Pnt &thePnt3, gp_Vec &theNormal) |
| SAT intersection test between defined volume and given triangle. More... | |
| Protected Attributes inherited from SelectMgr_Frustum< 3 > | |
| gp_Vec | myPlanes [N+2] |
| Plane equations. More... | |
| gp_Pnt | myVertices [N *2] |
| Vertices coordinates. More... | |
| Standard_Real | myMaxVertsProjections [N+2] |
| Cached projections of vertices onto frustum plane directions. More... | |
| Standard_Real | myMinVertsProjections [N+2] |
| Cached projections of vertices onto frustum plane directions. More... | |
| Standard_Real | myMaxOrthoVertsProjections [3] |
| Cached projections of vertices onto directions of ortho unit vectors. More... | |
| Standard_Real | myMinOrthoVertsProjections [3] |
| Cached projections of vertices onto directions of ortho unit vectors. More... | |
| gp_Vec | myEdgeDirs [6] |
| Cached edge directions. More... | |
| Protected Attributes inherited from SelectMgr_BaseFrustum | |
| Standard_Integer | myPixelTolerance |
| Pixel tolerance. More... | |
| Standard_Boolean | myIsOrthographic |
| Defines if current camera is orthographic. More... | |
| Handle< SelectMgr_FrustumBuilder > | myBuilder |
| A tool implementing methods for volume build. More... | |
| Handle< Graphic3d_Camera > | myCamera |
| camera definition More... | |
Detailed Description
This class contains representation of triangular selecting frustum, created in case of polyline selection, and algorithms for overlap detection between selecting frustum and sensitive entities. Overlap detection tests are implemented according to the terms of separating axis theorem (SAT).
Constructor & Destructor Documentation
◆ SelectMgr_TriangularFrustum()
|
inline |
Creates new triangular frustum with bases of triangles with vertices theP1, theP2 and theP3 projections onto near and far view frustum planes.
◆ ~SelectMgr_TriangularFrustum()
| SelectMgr_TriangularFrustum::~SelectMgr_TriangularFrustum | ( | ) |
Member Function Documentation
◆ Build()
|
overridevirtual |
Creates new triangular frustum with bases of triangles with vertices theP1, theP2 and theP3 projections onto near and far view frustum planes (only for triangular frustums)
Reimplemented from SelectMgr_BaseFrustum.
◆ Clear()
| void SelectMgr_TriangularFrustum::Clear | ( | ) |
Nullifies the handle to corresponding builder instance to prevent memory leaks.
◆ GetPlanes()
|
overridevirtual |
Stores plane equation coefficients (in the following form: Ax + By + Cz + D = 0) to the given vector.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [1/6]
|
overridevirtual |
SAT intersection test between defined volume and given axis-aligned box.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [2/6]
|
overridevirtual |
Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [3/6]
|
overridevirtual |
Intersection test between defined volume and given point.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [4/6]
|
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.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [5/6]
|
overridevirtual |
Checks if line segment overlaps selecting frustum.
Reimplemented from SelectMgr_BaseFrustum.
◆ Overlaps() [6/6]
|
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.
Reimplemented from SelectMgr_BaseFrustum.
◆ ScaleAndTransform()
|
overridevirtual |
Returns a copy of the frustum transformed according to the matrix given.
Reimplemented from SelectMgr_BaseFrustum.
The documentation for this class was generated from the following file:
