Open CASCADE Technology
6.9.1

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>
Public Member Functions  
SelectMgr_RectangularFrustum ()  
virtual void  Build (const gp_Pnt2d &thePoint) Standard_OVERRIDE 
Builds volume according to the point and given pixel tolerance. More...  
virtual void  Build (const gp_Pnt2d &theMinPnt, const gp_Pnt2d &theMaxPnt) Standard_OVERRIDE 
Builds volume according to the selected rectangle. More...  
virtual NCollection_Handle< SelectMgr_BaseFrustum >  ScaleAndTransform (const Standard_Integer theScaleFactor, const gp_Trsf &theTrsf) Standard_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...  
virtual Standard_Boolean  Overlaps (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Real &theDepth) Standard_OVERRIDE 
SAT intersection test between defined volume and given axisaligned box. More...  
virtual Standard_Boolean  Overlaps (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *theInside=NULL) Standard_OVERRIDE 
Returns true if selecting volume is overlapped by axisaligned 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) Standard_OVERRIDE 
Intersection test between defined volume and given point. More...  
virtual Standard_Boolean  Overlaps (const gp_Pnt &thePnt) Standard_OVERRIDE 
Intersection test between defined volume and given point. More...  
virtual Standard_Boolean  Overlaps (const Handle< TColgp_HArray1OfPnt > &theArrayOfPnts, Select3D_TypeOfSensitivity theSensType, Standard_Real &theDepth) Standard_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) Standard_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) Standard_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...  
virtual Standard_Real  DistToGeometryCenter (const gp_Pnt &theCOG) Standard_OVERRIDE 
Measures distance between 3d projection of userpicked screen point and given point theCOG. More...  
virtual gp_Pnt  DetectedPoint (const Standard_Real theDepth) const Standard_OVERRIDE 
Calculates the point on a view ray that was detected during the run of selection algo by given depth. More...  
virtual Standard_Boolean  IsClipped (const Graphic3d_SequenceOfHClipPlane &thePlanes, const Standard_Real theDepth) Standard_OVERRIDE 
Checks if the point of sensitive in which selection was detected belongs to the region defined by clipping planes. More...  
const gp_Pnt *  GetVertices () const 
A set of helper functions that return rectangular selecting frustum data. More...  
gp_Pnt  GetNearPnt () const 
gp_Pnt  GetFarPnt () const 
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 toletance set to 2, orthographic camera and empty frustum builder. More...  
virtual  ~SelectMgr_BaseFrustum () 
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 &theOrientation, const Standard_Integer theIsOrthographic) 
Passes camera projection and orientation matrices to builder. More...  
void  SetPixelTolerance (const Standard_Integer theTol) 
void  SetWindowSize (const Standard_Integer theWidth, const Standard_Integer theHeight) 
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 &, const gp_Pnt2d &, const gp_Pnt2d &) 
Builds volume according to the triangle given. More...  
virtual void  Build (const TColgp_Array1OfPnt2d &) 
Builds selecting volumes set according to polyline points. More...  
Protected Member Functions  
void  segmentSegmentDistance (const gp_Pnt &theSegPnt1, const gp_Pnt &theSegPnt2, Standard_Real &theDepth) 
void  segmentPlaneIntersection (const gp_Vec &thePlane, const gp_Pnt &thePntOnPlane, Standard_Real &theDepth) 
Protected Member Functions inherited from SelectMgr_Frustum< 4 >  
Standard_Boolean  hasOverlap (const SelectMgr_Vec3 &theBoxMin, const SelectMgr_Vec3 &theBoxMax, Standard_Boolean *theInside=NULL) 
Returns true if selecting volume is overlapped by axisaligned 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 Handle< TColgp_HArray1OfPnt > &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...  
Additional Inherited Members  
Protected Attributes inherited from SelectMgr_Frustum< 4 >  
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...  
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:

inline 

virtual 
Builds volume according to the point and given pixel tolerance.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
Builds volume according to the selected rectangle.
Reimplemented from SelectMgr_BaseFrustum.

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

virtual 
Measures distance between 3d projection of userpicked screen point and given point theCOG.
Reimplemented from SelectMgr_BaseFrustum.

inline 

inline 

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

virtual 
Checks if the point of sensitive in which selection was detected belongs to the region defined by clipping planes.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
SAT intersection test between defined volume and given axisaligned box.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
Returns true if selecting volume is overlapped by axisaligned bounding box with minimum corner at point theMinPt and maximum at point theMaxPt.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
Intersection test between defined volume and given point.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
Intersection test between defined volume and given point.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
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.

virtual 
Checks if line segment overlaps selecting frustum.
Reimplemented from SelectMgr_BaseFrustum.

virtual 
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.

virtual 
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:
Reimplemented from SelectMgr_BaseFrustum.

protected 

protected 