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0026195: Visualization - optimize selection algorithms

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- initial transformation of triangulation is now applied to selecting frustum;
- switched from NCollection_Vec3 to gp collections to avoid conversions and usage of macros;
- calculation of frustum was refactored to reduce its build time;
- double pixel tolerances for selection were replaced by integer ones;
- switched to splitting along the main axis only in SelectMgr BVH selection primitive sets.
This commit is contained in:
vpa
2015-08-31 10:29:53 +03:00
committed by bugmaster
parent 646529083a
commit 3bf9a45f7a
50 changed files with 1057 additions and 978 deletions
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43
src/SelectMgr/SelectMgr_SelectingVolumeManager.hxx
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@@ -38,12 +38,16 @@ public:
Standard_EXPORT virtual ~SelectMgr_SelectingVolumeManager() {};
//! Returns a copy of active frustum transformed according to the matrix given
Standard_EXPORT virtual SelectMgr_SelectingVolumeManager Transform (const gp_Trsf& theTrsf);
//! IMPORTANT: Makes sense only for point selection!
//! 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
Standard_EXPORT virtual SelectMgr_SelectingVolumeManager Scale (const Standard_Real theScaleFactor);
//! and transforms it using the matrix given.
//! There are no default parameters, but in case if:
//! - transformation only is needed: @theScaleFactor must be initialized as any negative value;
//! - scale only is needed: @theTrsf must be set to gp_Identity.
Standard_EXPORT virtual SelectMgr_SelectingVolumeManager ScaleAndTransform (const Standard_Integer theScaleFactor,
const gp_Trsf& theTrsf);
Standard_EXPORT virtual Standard_Integer GetActiveSelectionType() const Standard_OVERRIDE;
@@ -74,7 +78,7 @@ public:
const Standard_Real theHeight);
//! Updates pixel tolerance in all selecting volumes
Standard_EXPORT void SetPixelTolerance (const Standard_Real theTolerance);
Standard_EXPORT void SetPixelTolerance (const Standard_Integer theTolerance);
//! Updates window size in all selecting volumes
Standard_EXPORT void SetWindowSize (const Standard_Integer theWidth, const Standard_Integer theHeight);
@@ -92,7 +96,8 @@ public:
//! SAT intersection test between defined volume and given axis-aligned box
Standard_EXPORT virtual Standard_Boolean Overlaps (const BVH_Box<Standard_Real, 3>& theBndBox,
Standard_EXPORT virtual Standard_Boolean Overlaps (const SelectMgr_Vec3& theBoxMin,
const SelectMgr_Vec3& theBoxMax,
Standard_Real& theDepth) Standard_OVERRIDE;
//! Returns true if selecting volume is overlapped by axis-aligned bounding box
@@ -102,9 +107,12 @@ public:
Standard_Boolean* theInside = NULL) Standard_OVERRIDE;
//! Intersection test between defined volume and given point
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePt,
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt,
Standard_Real& theDepth) Standard_OVERRIDE;
//! Intersection test between defined volume and given point
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt) 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
@@ -113,16 +121,16 @@ public:
Standard_Real& theDepth) Standard_OVERRIDE;
//! Checks if line segment overlaps selecting frustum
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt1,
const gp_Pnt& thePnt2,
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
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
const gp_Pnt& thePt3,
Standard_EXPORT virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt1,
const gp_Pnt& thePnt2,
const gp_Pnt& thePnt3,
Standard_Integer theSensType,
Standard_Real& theDepth) Standard_OVERRIDE;
@@ -133,7 +141,7 @@ public:
//! Calculates the point on a view ray that was detected during the run of selection algo by given depth. Is valid for point
//! selection only
Standard_EXPORT virtual NCollection_Vec3<Standard_Real> DetectedPoint (const Standard_Real theDepth) const Standard_OVERRIDE;
Standard_EXPORT virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const Standard_OVERRIDE;
//! Checks if the point of sensitive in which selection was detected belongs
//! to the region defined by clipping planes
@@ -147,6 +155,13 @@ public:
Standard_EXPORT virtual Standard_Boolean IsOverlapAllowed() const Standard_OVERRIDE;
//! A set of helper functions that return rectangular selecting frustum data
Standard_EXPORT const gp_Pnt* GetVertices() const;
Standard_EXPORT gp_Pnt GetNearPnt() const;
Standard_EXPORT gp_Pnt GetFarPnt() const;
private:
enum { Frustum, FrustumSet, VolumeTypesNb }; //!< Defines the amount of available selecting volumes