Abstract framework to define 3D sensitive entities.
As the selection process uses the principle of a projection of 3D shapes onto a 2D view where nearness to a rectangle determines whether a shape is picked or not, all 3D shapes need to be converted into 2D ones in order to be selected. More...
#include <Select3D_SensitiveEntity.hxx>
Public Member Functions | |
| virtual Handle < Select3D_SensitiveEntity > | GetConnected () |
| Originally this method intended to return sensitive entity with new location aLocation, but currently sensitive entities do not hold a location, instead HasLocation() and Location() methods call corresponding entity owner's methods. Thus all entities returned by GetConnected() share the same location propagated from corresponding selectable object. You must redefine this function for any type of sensitive entity which can accept another connected sensitive entity.//can be connected to another sensitive entity. More... | |
| virtual Standard_Boolean | Matches (SelectBasics_SelectingVolumeManager &theMgr, SelectBasics_PickResult &thePickResult) Standard_OVERRIDE |
| Checks whether sensitive overlaps current selecting volume. Stores minimum depth, distance to center of geometry and closest point detected into thePickResult. More... | |
| virtual Standard_Integer | NbSubElements ()=0 |
| Returns the number of sub-entities or elements in sensitive entity. Is used to determine if entity is complex and needs to pre-build BVH at the creation of sensitive entity step or is light-weighted so the tree can be build on demand with unnoticeable delay. More... | |
| virtual Select3D_BndBox3d | BoundingBox ()=0 |
| Returns bounding box of a sensitive with transformation applied. More... | |
| virtual gp_Pnt | CenterOfGeometry () const =0 |
| Returns center of a sensitive with transformation applied. More... | |
| virtual void | BVH () Standard_OVERRIDE |
| Builds BVH tree for a sensitive if needed. More... | |
| virtual void | Clear () Standard_OVERRIDE |
| Clears up all resources and memory. More... | |
 Public Member Functions inherited from SelectBasics_SensitiveEntity | |
| virtual void | Set (const Handle< SelectBasics_EntityOwner > &theOwnerId) |
| Sets owner of the entity. More... | |
| const Handle < SelectBasics_EntityOwner > & | OwnerId () const |
| Returns pointer to owner of the entity. More... | |
| Standard_Real | SensitivityFactor () const |
| allows a better sensitivity for a specific entity in selection algorithms useful for small sized entities. More... | |
| Public Member Functions inherited from MMgt_TShared | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. 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 const Handle_Standard_Type & | DynamicType () const |
| Returns a type information object about this object. More... | |
| Standard_Boolean | IsInstance (const 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 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... | |
| virtual Handle_Standard_Transient | This () const |
| Returns a Handle which references this object. Must never be called to objects created in stack. More... | |
| Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More... | |
Protected Member Functions | |
| Select3D_SensitiveEntity (const Handle< SelectBasics_EntityOwner > &theOwnerId) | |
| Protected Member Functions inherited from SelectBasics_SensitiveEntity | |
| SelectBasics_SensitiveEntity (const Handle< SelectBasics_EntityOwner > &theOwnerId, const Standard_Real theSensFactor=2.0) | |
| void | SetSensitivityFactor (const Standard_Real theSensFactor) |
| Allows to manage the sensitivity of the entity. More... | |
Additional Inherited Members | |
| Protected Attributes inherited from SelectBasics_SensitiveEntity | |
| Handle< SelectBasics_EntityOwner > | myOwnerId |
Detailed Description
Abstract framework to define 3D sensitive entities.
As the selection process uses the principle of a projection of 3D shapes onto a 2D view where nearness to a rectangle determines whether a shape is picked or not, all 3D shapes need to be converted into 2D ones in order to be selected.
Constructor & Destructor Documentation
|
protected |
Member Function Documentation
|
pure virtual |
Returns bounding box of a sensitive with transformation applied.
Implements SelectBasics_SensitiveEntity.
Implemented in Select3D_SensitiveTriangulation, Select3D_SensitiveGroup, Select3D_SensitiveSet, Select3D_SensitivePoly, Select3D_SensitiveFace, Select3D_SensitiveSegment, Select3D_SensitiveBox, Select3D_SensitiveTriangle, Select3D_InteriorSensitivePointSet, MeshVS_SensitivePolyhedron, Select3D_SensitivePoint, Select3D_SensitiveWire, and MeshVS_SensitiveMesh.
|
virtual |
Builds BVH tree for a sensitive if needed.
Implements SelectBasics_SensitiveEntity.
Reimplemented in Select3D_SensitiveCircle, Select3D_SensitiveFace, and Select3D_SensitiveSet.
|
pure virtual |
Returns center of a sensitive with transformation applied.
Implemented in Select3D_SensitiveTriangulation, Select3D_SensitiveGroup, Select3D_SensitiveCircle, Select3D_SensitiveSet, Select3D_SensitivePoly, Select3D_SensitiveFace, Select3D_SensitiveTriangle, Select3D_SensitiveSegment, Select3D_InteriorSensitivePointSet, Select3D_SensitiveBox, MeshVS_SensitivePolyhedron, Select3D_SensitiveWire, Select3D_SensitivePoint, and MeshVS_SensitiveMesh.
|
virtual |
Clears up all resources and memory.
Implements SelectBasics_SensitiveEntity.
Reimplemented in Select3D_SensitiveSet, and Select3D_SensitiveGroup.
|
virtual |
Originally this method intended to return sensitive entity with new location aLocation, but currently sensitive entities do not hold a location, instead HasLocation() and Location() methods call corresponding entity owner's methods. Thus all entities returned by GetConnected() share the same location propagated from corresponding selectable object. You must redefine this function for any type of sensitive entity which can accept another connected sensitive entity.//can be connected to another sensitive entity.
Reimplemented in Select3D_SensitiveCircle, Select3D_SensitiveGroup, Select3D_SensitiveTriangulation, Select3D_SensitiveFace, Select3D_SensitiveCurve, Select3D_SensitiveTriangle, Select3D_SensitiveSegment, Select3D_SensitiveBox, MeshVS_SensitivePolyhedron, Select3D_SensitiveWire, Select3D_SensitivePoint, and MeshVS_SensitiveMesh.
|
virtual |
Checks whether sensitive overlaps current selecting volume. Stores minimum depth, distance to center of geometry and closest point detected into thePickResult.
Implements SelectBasics_SensitiveEntity.
Reimplemented in Select3D_SensitiveCircle, Select3D_SensitiveGroup, Select3D_SensitiveFace, Select3D_SensitiveSegment, Select3D_SensitiveSet, Select3D_SensitiveBox, MeshVS_SensitivePolyhedron, Select3D_SensitiveTriangle, and Select3D_SensitivePoint.
|
pure virtual |
Returns the number of sub-entities or elements in sensitive entity. Is used to determine if entity is complex and needs to pre-build BVH at the creation of sensitive entity step or is light-weighted so the tree can be build on demand with unnoticeable delay.
Implements SelectBasics_SensitiveEntity.
Implemented in Select3D_SensitiveGroup, Select3D_SensitiveFace, Select3D_SensitiveTriangulation, Select3D_InteriorSensitivePointSet, Select3D_SensitiveTriangle, Select3D_SensitivePoly, MeshVS_SensitivePolyhedron, Select3D_SensitiveSegment, Select3D_SensitiveBox, Select3D_SensitiveWire, Select3D_SensitivePoint, and MeshVS_SensitiveMesh.
The documentation for this class was generated from the following file:
