// Created on: 2014-05-22
// Created by: Varvara POSKONINA
// Copyright (c) 2005-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <SelectMgr_SelectingVolumeManager.hxx>
//=======================================================================
// function : SelectMgr_SelectingVolumeManager
// purpose : Creates instances of all available selecting volume types
//=======================================================================
SelectMgr_SelectingVolumeManager::SelectMgr_SelectingVolumeManager (Standard_Boolean theToAllocateFrustums)
{
myActiveSelectionType = Unknown;
myToAllowOverlap = Standard_False;
if (theToAllocateFrustums)
{
mySelectingVolumes[Frustum] = new SelectMgr_RectangularFrustum();
mySelectingVolumes[FrustumSet] = new SelectMgr_TriangularFrustumSet();
}
}
//=======================================================================
// function : ScaleAndTransform
// purpose : 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:
// - transformation only is needed: @theScaleFactor must be initialized
// as any negative value;
// - scale only is needed: @theTrsf must be set to gp_Identity.
//=======================================================================
SelectMgr_SelectingVolumeManager SelectMgr_SelectingVolumeManager::ScaleAndTransform (const Standard_Integer theScaleFactor,
const gp_Trsf& theTrsf)
{
SelectMgr_SelectingVolumeManager aMgr (Standard_False);
if (myActiveSelectionType == Unknown)
return aMgr;
aMgr.myActiveSelectionType = myActiveSelectionType;
aMgr.mySelectingVolumes[myActiveSelectionType / 2]
= mySelectingVolumes[myActiveSelectionType / 2]->ScaleAndTransform (theScaleFactor, theTrsf);
aMgr.myToAllowOverlap = myToAllowOverlap;
return aMgr;
}
//=======================================================================
// function : GetActiveSelectionType
// purpose :
//=======================================================================
Standard_Integer SelectMgr_SelectingVolumeManager::GetActiveSelectionType() const
{
return myActiveSelectionType;
}
//=======================================================================
// function : SetActiveSelectionType
// purpose :
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetActiveSelectionType (const SelectionType& theType)
{
myActiveSelectionType = theType;
}
//=======================================================================
// function : SetCamera
// purpose : Updates camera projection and orientation matrices in all
// selecting volumes
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetCamera (const Handle(Graphic3d_Camera) theCamera)
{
for (Standard_Integer anIdx = 0; anIdx < VolumeTypesNb; ++anIdx)
{
mySelectingVolumes[anIdx]->SetCamera (theCamera);
}
}
//=======================================================================
// function : SetCamera
// purpose : Updates camera projection and orientation matrices in all
// selecting volumes
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetCamera (const Graphic3d_Mat4d& theProjection,
const Graphic3d_Mat4d& theWorldView,
const Standard_Boolean theIsOrthographic,
const Graphic3d_WorldViewProjState& theWVPState)
{
for (Standard_Integer anIdx = 0; anIdx < VolumeTypesNb; ++anIdx)
{
mySelectingVolumes[anIdx]->SetCamera (theProjection, theWorldView, theIsOrthographic, theWVPState);
}
}
//=======================================================================
// function : ProjectionMatrix
// purpose : Returns current projection transformation common for all
// selecting volumes
//=======================================================================
const Graphic3d_Mat4d& SelectMgr_SelectingVolumeManager::ProjectionMatrix() const
{
return mySelectingVolumes[Frustum]->ProjectionMatrix();
}
//=======================================================================
// function : WorldViewMatrix
// purpose : Returns current world view transformation common for all
// selecting volumes
//=======================================================================
const Graphic3d_Mat4d& SelectMgr_SelectingVolumeManager::WorldViewMatrix() const
{
return mySelectingVolumes[Frustum]->WorldViewMatrix();
}
//=======================================================================
// function : WorldViewProjState
// purpose : Returns current camera world view projection transformation
// state common for all selecting volumes
//=======================================================================
const Graphic3d_WorldViewProjState& SelectMgr_SelectingVolumeManager::WorldViewProjState() const
{
return mySelectingVolumes[Frustum]->WorldViewProjState();
}
//=======================================================================
// function : SetCamera
// purpose : Updates viewport in all selecting volumes
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetViewport (const Standard_Real theX,
const Standard_Real theY,
const Standard_Real theWidth,
const Standard_Real theHeight)
{
for (Standard_Integer anIdx = 0; anIdx < VolumeTypesNb; ++anIdx)
{
mySelectingVolumes[anIdx]->SetViewport (theX, theY, theWidth, theHeight);
}
}
//=======================================================================
// function : SetWindowSize
// purpose : Updates window size in all selecting volumes
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetWindowSize (const Standard_Integer theWidth,
const Standard_Integer theHeight)
{
for (Standard_Integer anIdx = 0; anIdx < VolumeTypesNb; ++anIdx)
{
mySelectingVolumes[anIdx]->SetWindowSize (theWidth, theHeight);
}
}
//=======================================================================
// function : SetPixelTolerance
// purpose : Updates pixel tolerance in all selecting volumes
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetPixelTolerance (const Standard_Integer theTolerance)
{
for (Standard_Integer anIdx = 0; anIdx < VolumeTypesNb; ++anIdx)
{
mySelectingVolumes[anIdx]->SetPixelTolerance (theTolerance);
}
}
//=======================================================================
// function : BuildSelectingVolume
// purpose : Builds rectangular selecting frustum for point selection
//=======================================================================
void SelectMgr_SelectingVolumeManager::BuildSelectingVolume (const gp_Pnt2d& thePoint)
{
if (myActiveSelectionType != Point)
return;
mySelectingVolumes[Frustum]->Build (thePoint);
}
//=======================================================================
// function : BuildSelectingVolume
// purpose : Builds rectangular selecting frustum for box selection
//=======================================================================
void SelectMgr_SelectingVolumeManager::BuildSelectingVolume (const gp_Pnt2d& theMinPt,
const gp_Pnt2d& theMaxPt)
{
if (myActiveSelectionType != Box)
return;
mySelectingVolumes[Frustum]->Build (theMinPt, theMaxPt);
}
//=======================================================================
// function : BuildSelectingVolume
// purpose : Builds set of triangular selecting frustums for polyline
// selection
//=======================================================================
void SelectMgr_SelectingVolumeManager::BuildSelectingVolume (const TColgp_Array1OfPnt2d& thePoints)
{
if (myActiveSelectionType != Polyline)
return;
mySelectingVolumes[FrustumSet]->Build (thePoints);
}
//=======================================================================
// function : Overlaps
// purpose : SAT intersection test between defined volume and
// given axis-aligned box
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const SelectMgr_Vec3& theBoxMin,
const SelectMgr_Vec3& theBoxMax,
Standard_Real& theDepth)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (theBoxMin, theBoxMax, theDepth);
}
//=======================================================================
// function : Overlaps
// purpose : Intersection test between defined volume and given point
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const SelectMgr_Vec3& theBoxMin,
const SelectMgr_Vec3& theBoxMax,
Standard_Boolean* theInside)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (theBoxMin, theBoxMax, theInside);
}
//=======================================================================
// function : Overlaps
// purpose : Intersection test between defined volume and given point
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const gp_Pnt& thePnt,
Standard_Real& theDepth)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (thePnt,
theDepth);
}
//=======================================================================
// function : Overlaps
// purpose : Intersection test between defined volume and given point
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const gp_Pnt& thePnt)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (thePnt);
}
//=======================================================================
// function : Overlaps
// purpose : 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
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const Handle(TColgp_HArray1OfPnt)& theArrayOfPnts,
Standard_Integer theSensType,
Standard_Real& theDepth)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (theArrayOfPnts,
(Select3D_TypeOfSensitivity)theSensType,
theDepth);
}
//=======================================================================
// function : Overlaps
// purpose : Checks if line segment overlaps selecting volume
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
Standard_Real& theDepth)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (thePt1, thePt2, theDepth);
}
//=======================================================================
// function : Overlaps
// purpose : 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_Boolean SelectMgr_SelectingVolumeManager::Overlaps (const gp_Pnt& thePt1,
const gp_Pnt& thePt2,
const gp_Pnt& thePt3,
Standard_Integer theSensType,
Standard_Real& theDepth)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->Overlaps (thePt1,
thePt2,
thePt3,
(Select3D_TypeOfSensitivity)theSensType,
theDepth);
}
//=======================================================================
// function : DistToGeometryCenter
// purpose : Measures distance between 3d projection of user-picked
// screen point and given point theCOG
//=======================================================================
Standard_Real SelectMgr_SelectingVolumeManager::DistToGeometryCenter (const gp_Pnt& theCOG)
{
if (myActiveSelectionType == Unknown)
return Standard_False;
return mySelectingVolumes[myActiveSelectionType / 2]->DistToGeometryCenter (theCOG);
}
// =======================================================================
// function : DetectedPoint
// purpose : 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
// =======================================================================
gp_Pnt SelectMgr_SelectingVolumeManager::DetectedPoint (const Standard_Real theDepth) const
{
if (myActiveSelectionType != Point)
return gp_Pnt (RealLast(), RealLast(), RealLast());
return mySelectingVolumes[Frustum]->DetectedPoint (theDepth);
}
//=======================================================================
// function : IsClipped
// purpose : Checks if the point of sensitive in which selection was
// detected belongs to the region defined by clipping planes
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::IsClipped (const Graphic3d_SequenceOfHClipPlane& thePlanes,
const Standard_Real& theDepth)
{
if (myActiveSelectionType != Point)
return Standard_False;
return mySelectingVolumes[Frustum]->IsClipped (thePlanes, theDepth);
}
//=======================================================================
// function : AllowOverlapDetection
// purpose : If theIsToAllow is false, only fully included sensitives will
// be detected, otherwise the algorithm will mark both included
// and overlapped entities as matched
//=======================================================================
void SelectMgr_SelectingVolumeManager::AllowOverlapDetection (const Standard_Boolean theIsToAllow)
{
myToAllowOverlap = theIsToAllow;
}
//=======================================================================
// function : IsOverlapAllowed
// purpose :
//=======================================================================
Standard_Boolean SelectMgr_SelectingVolumeManager::IsOverlapAllowed() const
{
return myActiveSelectionType != Box || myToAllowOverlap;
}
//=======================================================================
// function : GetVertices
// purpose :
//=======================================================================
const gp_Pnt* SelectMgr_SelectingVolumeManager::GetVertices() const
{
if (myActiveSelectionType == Polyline)
return NULL;
const SelectMgr_RectangularFrustum* aFr =
reinterpret_cast<const SelectMgr_RectangularFrustum*> (mySelectingVolumes[myActiveSelectionType / 2].get());
return aFr->GetVertices();
}
//=======================================================================
// function : GetNearPnt
// purpose :
//=======================================================================
gp_Pnt SelectMgr_SelectingVolumeManager::GetNearPnt() const
{
if (myActiveSelectionType == Polyline)
return gp_Pnt();
const SelectMgr_RectangularFrustum* aFr =
reinterpret_cast<const SelectMgr_RectangularFrustum*> (mySelectingVolumes[myActiveSelectionType / 2].get());
return aFr->GetNearPnt();
}
//=======================================================================
// function : GetFarPnt
// purpose :
//=======================================================================
gp_Pnt SelectMgr_SelectingVolumeManager::GetFarPnt() const
{
if (myActiveSelectionType == Polyline)
return gp_Pnt();
const SelectMgr_RectangularFrustum* aFr =
reinterpret_cast<const SelectMgr_RectangularFrustum*> (mySelectingVolumes[myActiveSelectionType / 2].get());
return aFr->GetFarPnt();
}
//=======================================================================
// function : SetViewClipping
// purpose :
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetViewClipping (const Graphic3d_SequenceOfHClipPlane& thePlanes)
{
if (myActiveSelectionType != Point)
return;
mySelectingVolumes[Frustum]->SetViewClipping (thePlanes);
}