Tool to create specific selections (sets of primitives) for Shapes from Topology. These Selections may be used in dynamic selection Mechanism Given a Shape and a mode of selection (selection of vertices, edges,faces ...) , This Tool Computes corresponding sensitive primitives, puts them in an entity called Selection (see package SelectMgr) and returns it.
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| static void | Load (const Handle< SelectMgr_Selection > &aSelection, const TopoDS_Shape &aShape, const TopAbs_ShapeEnum aType, const Standard_Real theDeflection, const Standard_Real theDeviationAngle, const Standard_Boolean AutoTriangulation=Standard_True, const Standard_Integer aPriority=-1, const Standard_Integer NbPOnEdge=9, const Standard_Real MaximalParameter=500) |
| | Decomposition of <aShape> into sensitive entities following a mode of decomposition <aType>. These entities are stored in <aSelection>. BrepOwners are created to store the identity of the picked shapes during the selection process. In those BRepOwners is also stored the original shape. But One can't get the selectable object which was decomposed to give the sensitive entities. maximal parameter is used for infinite objects, to limit the sensitive Domain.... If AutoTriangulation = True, a Triangulation will be computed for faces which have no existing one. if AutoTriangulation = False the old algorithm will be called to compute sensitive entities on faces. More...
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| static void | Load (const Handle< SelectMgr_Selection > &aSelection, const Handle< SelectMgr_SelectableObject > &Origin, const TopoDS_Shape &aShape, const TopAbs_ShapeEnum aType, const Standard_Real theDeflection, const Standard_Real theDeviationAngle, const Standard_Boolean AutoTriangulation=Standard_True, const Standard_Integer aPriority=-1, const Standard_Integer NbPOnEdge=9, const Standard_Real MaximalParameter=500) |
| | Same functionnalities ; the only difference is that the selectable object from which the selection comes is stored in each Sensitive EntityOwner; decomposition of <aShape> into sensitive entities following a mode of decomposition <aType>. These entities are stored in <aSelection> The Major difference is that the known users are first inserted in the BRepOwners. the original shape is the last user... (see EntityOwner from SelectBasics and BrepOwner)... More...
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| static Standard_Integer | GetStandardPriority (const TopoDS_Shape &aShap, const TopAbs_ShapeEnum aType) |
| | Returns the standard priority of the shape aShap having the type aType. This priority is passed to a StdSelect_BRepOwner object. You can use the function Load to modify the selection priority of an owner to make one entity more selectable than another one. More...
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| static void | ComputeSensitive (const TopoDS_Shape &aShape, const Handle< StdSelect_BRepOwner > &anOwner, const Handle< SelectMgr_Selection > &aSelection, const Standard_Real theDeflection, const Standard_Real theDeviationAngle, const Standard_Integer NbPOnEdge, const Standard_Real MaximalParameter, const Standard_Boolean AutoTriangulation=Standard_True) |
| | Computes the sensitive primitives corresponding to the subshape aShape with the owner anOwner. Stores them in the SelectMgr_Selection object, and returns this object. The number NbPOnEdge is used to define edges and wires. In the case of infinite objects, the value MaximalParameter serves to limit computation time by limiting the sensitive area. The default value is 500. If AutoTriangulation is true, triangulation will be computed for the faces which have none. If it is false, sensitive entities on these faces will be calculated. More...
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| static Standard_Boolean | GetSensitiveForFace (const TopoDS_Face &aFace, const Handle< StdSelect_BRepOwner > &anOwner, Select3D_EntitySequence &OutList, const Standard_Boolean AutoTriangulation=Standard_True, const Standard_Integer NbPOnEdge=9, const Standard_Real MaxiParam=500, const Standard_Boolean InteriorFlag=Standard_True) |
| | appends to <OutList> the 3D sensitive entities created for selection of <aFace> if<InteriorFlag> = False the face will be sensitive only on its boundary More...
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| static void | PreBuildBVH (const Handle< SelectMgr_Selection > &theSelection) |
| | Traverses the selection given and pre-builds BVH trees for heavyweight sensitive entities containing more than BVH_PRIMITIVE_LIMIT (defined in .cxx file) sub-elements. More...
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Tool to create specific selections (sets of primitives) for Shapes from Topology. These Selections may be used in dynamic selection Mechanism Given a Shape and a mode of selection (selection of vertices, edges,faces ...) , This Tool Computes corresponding sensitive primitives, puts them in an entity called Selection (see package SelectMgr) and returns it.
A Priority for the decomposed pickable objects can be given ; by default There is A Preset Hierachy: Vertex priority : 5 Edge priority : 4 Wire priority : 3 Face priority : 2 Shell,solid,shape priority : 1 the default priority in the following methods has no sense - it's only taken in account when the user gives a value between 0 and 10. IMPORTANT : This decomposition creates BRepEntityOwner instances (from StdSelect). which are stored in the Sensitive Entities coming from The Decomposition.
the result of picking in a ViewerSelector return EntityOwner from SelectMgr; to know what kind of object was picked :
ENTITY_OWNER -> Selectable() gives the selectableobject which was decomposed into pickable elements. Handle(StdSelect_BRepOwner)::DownCast(ENTITY_OWNER) -> Shape() gives the real picked shape (edge,vertex,shape...)
