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BRep history added for hidden faces remove tool support

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snn
2018-03-16 12:19:08 +03:00
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src/BRepTools/BRepTools_History.cxx Normal file
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// Created on: 2017-04-21
// Created by: Alexander Bobkov
// Copyright (c) 2017 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 <BRepTools_History.hxx>
#include <TopExp.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
// Implement the OCCT RTTI for the type.
IMPLEMENT_STANDARD_RTTIEXT(BRepTools_History, Standard_Transient)
namespace
{
//==============================================================================
//function : add
//purpose : Adds the elements of the list to the map.
//==============================================================================
void add(TopTools_MapOfShape& theMap, const TopTools_ListOfShape& theList)
{
for (TopTools_ListOfShape::Iterator aSIt(theList); aSIt.More(); aSIt.Next())
{
theMap.Add(aSIt.Value());
}
}
//==============================================================================
//function : add
//purpose : Adds the elements of the collection to the list.
//==============================================================================
template<typename TCollection>
void add(TopTools_ListOfShape& theList, const TCollection& theCollection)
{
for (typename TCollection::Iterator aSIt(theCollection);
aSIt.More(); aSIt.Next())
{
theList.Append(aSIt.Value());
}
}
}
//==============================================================================
//function : AddGenerated
//purpose :
//==============================================================================
void BRepTools_History::AddGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated)
{
if (!prepareGenerated(theInitial, theGenerated))
{
return;
}
TopTools_ListOfShape* aGenerations =
myShapeToGenerated.ChangeSeek(theInitial);
if (aGenerations == NULL)
{
aGenerations = myShapeToGenerated.Bound(theInitial, TopTools_ListOfShape());
}
Standard_ASSERT_VOID(!aGenerations->Contains(theGenerated),
"Error: a duplicated generation of a shape.");
aGenerations->Append(theGenerated);
}
//==============================================================================
//function : AddModified
//purpose :
//==============================================================================
void BRepTools_History::AddModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified)
{
if (!prepareModified(theInitial, theModified))
{
return;
}
TopTools_ListOfShape* aModifications =
myShapeToModified.ChangeSeek(theInitial);
if (aModifications == NULL)
{
aModifications =
myShapeToModified.Bound(theInitial, TopTools_ListOfShape());
}
Standard_ASSERT_VOID(!aModifications->Contains(theModified),
"Error: a duplicated modification of a shape.");
aModifications->Append(theModified);
}
//==============================================================================
//function : Remove
//purpose :
//==============================================================================
void BRepTools_History::Remove(const TopoDS_Shape& theRemoved)
{
// Apply the limitations.
Standard_ASSERT_RETURN(IsSupportedType(theRemoved), myMsgUnsupportedType,);
if (myShapeToGenerated.UnBind(theRemoved))
{
Standard_ASSERT_INVOKE_(, myMsgGeneratedAndRemoved);
}
if (myShapeToModified.UnBind(theRemoved))
{
Standard_ASSERT_INVOKE_(, myMsgModifiedAndRemoved);
}
//
myRemoved.Add(theRemoved);
}
//==============================================================================
//function : ReplaceGenerated
//purpose :
//==============================================================================
void BRepTools_History::ReplaceGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated)
{
if (!prepareGenerated(theInitial, theGenerated))
{
return;
}
TopTools_ListOfShape* aGenerations =
myShapeToGenerated.Bound(theInitial, TopTools_ListOfShape());
aGenerations->Append(theGenerated);
}
//==============================================================================
//function : ReplaceModified
//purpose :
//==============================================================================
void BRepTools_History::ReplaceModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified)
{
if (!prepareModified(theInitial, theModified))
{
return;
}
TopTools_ListOfShape* aModifications =
myShapeToModified.Bound(theInitial, TopTools_ListOfShape());
aModifications->Append(theModified);
}
//==============================================================================
//function : Generated
//purpose :
//==============================================================================
const TopTools_ListOfShape& BRepTools_History::Generated(
const TopoDS_Shape& theInitial) const
{
// Apply the limitations.
Standard_ASSERT_RETURN(theInitial.IsNull() || IsSupportedType(theInitial),
myMsgUnsupportedType, emptyList());
//
const TopTools_ListOfShape* aGenerations =
myShapeToGenerated.Seek(theInitial);
return (aGenerations != NULL) ? *aGenerations : emptyList();
}
//==============================================================================
//function : Modified
//purpose :
//==============================================================================
const TopTools_ListOfShape& BRepTools_History::Modified(
const TopoDS_Shape& theInitial) const
{
// Apply the limitations.
Standard_ASSERT_RETURN(IsSupportedType(theInitial),
myMsgUnsupportedType, emptyList());
//
const TopTools_ListOfShape* aModifications =
myShapeToModified.Seek(theInitial);
return (aModifications != NULL) ? *aModifications : emptyList();
}
//==============================================================================
//function : IsRemoved
//purpose :
//==============================================================================
Standard_Boolean BRepTools_History::IsRemoved(
const TopoDS_Shape& theInitial) const
{
// Apply the limitations.
Standard_ASSERT_RETURN(IsSupportedType(theInitial),
myMsgUnsupportedType, Standard_False);
//
return myRemoved.Contains(theInitial);
}
//==============================================================================
//function : Merge
//purpose :
//==============================================================================
void BRepTools_History::Merge(const Handle(BRepTools_History)& theHistory23)
{
// Propagate R23 directly and M23 and G23 fully to M12 and G12.
// Remember the propagated shapes.
TopTools_DataMapOfShapeListOfShape* aS1ToGAndM[] =
{&myShapeToGenerated, &myShapeToModified};
TopTools_MapOfShape aRPropagated;
{
// Propagate R23, M23 and G23 to M12 and G12 directly.
// Remember the propagated shapes.
TopTools_MapOfShape aMAndGPropagated;
for (Standard_Integer aI = 0; aI < 2; ++aI)
{
for (TopTools_DataMapOfShapeListOfShape::Iterator aMIt1(*aS1ToGAndM[aI]);
aMIt1.More(); aMIt1.Next())
{
TopTools_ListOfShape& aL12 = aMIt1.ChangeValue();
TopTools_MapOfShape aAdditions[2]; // The G and M additions.
for (TopTools_ListOfShape::Iterator aSIt2(aL12); aSIt2.More();)
{
const TopoDS_Shape& aS2 = aSIt2.Value();
if (theHistory23->IsRemoved(aS2))
{
aL12.Remove(aSIt2);
aRPropagated.Add(aS2);
}
else
{
if (theHistory23->myShapeToGenerated.IsBound(aS2))
{
add(aAdditions[0], theHistory23->myShapeToGenerated(aS2));
aMAndGPropagated.Add(aS2);
}
if (theHistory23->myShapeToModified.IsBound(aS2))
{
add(aAdditions[aI], theHistory23->myShapeToModified(aS2));
aMAndGPropagated.Add(aS2);
aL12.Remove(aSIt2);
}
else
{
aSIt2.Next();
}
}
}
add(aL12, aAdditions[aI]);
if (aI != 0 && !aAdditions[0].IsEmpty())
{
const TopoDS_Shape& aS1 = aMIt1.Key();
TopTools_ListOfShape* aGAndM = aS1ToGAndM[0]->ChangeSeek(aS1);
if (aGAndM == NULL)
{
aGAndM = aS1ToGAndM[0]->Bound(aS1, TopTools_ListOfShape());
}
add(*aGAndM, aAdditions[0]);
}
}
}
// Propagate M23 and G23 to M12 and G12 sequentially.
const TopTools_DataMapOfShapeListOfShape* aS2ToGAndM[] =
{&theHistory23->myShapeToGenerated, &theHistory23->myShapeToModified};
for (Standard_Integer aI = 0; aI < 2; ++aI)
{
for (TopTools_DataMapOfShapeListOfShape::Iterator aMIt2(*aS2ToGAndM[aI]);
aMIt2.More(); aMIt2.Next())
{
const TopoDS_Shape& aS2 = aMIt2.Key();
if (!aMAndGPropagated.Contains(aS2))
{
if (!aS1ToGAndM[aI]->IsBound(aS2))
{
aS1ToGAndM[aI]->Bind(aS2, TopTools_ListOfShape());
}
TopTools_ListOfShape aM2 = aMIt2.Value();
((*aS1ToGAndM[aI])(aS2)).Append(aM2);
}
}
}
}
// Unbound the empty M12 and G12.
for (Standard_Integer aI = 0; aI < 2; ++aI)
{
for (TopTools_DataMapOfShapeListOfShape::Iterator aMIt1(*aS1ToGAndM[aI]);
aMIt1.More();)
{
const TopoDS_Shape& aS1 = aMIt1.Key();
const TopTools_ListOfShape& aL12 = aMIt1.Value();
aMIt1.Next();
if (aL12.IsEmpty())
{
aS1ToGAndM[aI]->UnBind(aS1);
}
}
}
// Propagate R23 to R12 sequentially.
for (TopTools_MapOfShape::Iterator aRIt23(theHistory23->myRemoved);
aRIt23.More(); aRIt23.Next())
{
const TopoDS_Shape& aS2 = aRIt23.Value();
if (!aRPropagated.Contains(aS2) &&
!myShapeToModified.IsBound(aS2) &&
!myShapeToGenerated.IsBound(aS2))
{
myRemoved.Add(aS2);
}
}
}
//==============================================================================
//function : prepareGenerated
//purpose :
//==============================================================================
Standard_Boolean BRepTools_History::prepareGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated)
{
Standard_ASSERT_RETURN(theInitial.IsNull() ||
IsSupportedType(theInitial), myMsgUnsupportedType, Standard_False);
if (myRemoved.Remove(theInitial))
{
Standard_ASSERT_INVOKE_(, myMsgGeneratedAndRemoved);
}
if (myShapeToModified.IsBound(theInitial) &&
myShapeToModified(theInitial).Remove(theGenerated))
{
Standard_ASSERT_INVOKE_(, myMsgGeneratedAndModified);
}
return Standard_True;
}
//==============================================================================
//function : prepareModified
//purpose :
//==============================================================================
Standard_Boolean BRepTools_History::prepareModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified)
{
Standard_ASSERT_RETURN(IsSupportedType(theInitial),
myMsgUnsupportedType, Standard_False);
if (myRemoved.Remove(theInitial))
{
Standard_ASSERT_INVOKE_(, myMsgModifiedAndRemoved);
}
if (myShapeToGenerated.IsBound(theInitial) &&
myShapeToGenerated(theInitial).Remove(theModified))
{
Standard_ASSERT_INVOKE_(, myMsgGeneratedAndModified);
}
return Standard_True;
}
//==============================================================================
//data : myEmptyList
//purpose :
//==============================================================================
const TopTools_ListOfShape BRepTools_History::myEmptyList;
//==============================================================================
//function : emptyList
//purpose :
//==============================================================================
const TopTools_ListOfShape& BRepTools_History::emptyList()
{
return myEmptyList;
}
//==============================================================================
//data : myMsgUnsupportedType
//purpose :
//==============================================================================
const char* BRepTools_History::myMsgUnsupportedType =
"Error: unsupported shape type.";
//==============================================================================
//data : myMsgGeneratedAndRemoved
//purpose :
//==============================================================================
const char* BRepTools_History::myMsgGeneratedAndRemoved =
"Error: a shape is generated and removed simultaneously.";
//==============================================================================
//data : myMsgModifiedAndRemoved
//purpose :
//==============================================================================
const char* BRepTools_History::myMsgModifiedAndRemoved =
"Error: a shape is modified and removed simultaneously.";
//==============================================================================
//data : myMsgGeneratedAndModified
//purpose :
//==============================================================================
const char* BRepTools_History::myMsgGeneratedAndModified =
"Error: a shape is generated and modified "
"from the same shape simultaneously.";

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src/BRepTools/BRepTools_History.hxx Normal file
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// Created on: 2017-04-21
// Created by: Alexander Bobkov
// Copyright (c) 2017 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.
#ifndef _BRepTools_History_HeaderFile
#define _BRepTools_History_HeaderFile
#include <NCollection_Handle.hxx>
#include <TopTools_DataMapOfShapeListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
class BRepTools_History;
DEFINE_STANDARD_HANDLE(BRepTools_History, Standard_Transient)
//! The history keeps the following relations between the input shapes
//! (S1, ..., Sm) and output shapes (T1, ..., Tn):
//! 1) an output shape Tj is generated from an input shape Si: Tj <= G(Si);
//! 2) a output shape Tj is modified from an input shape Si: Tj <= M(Si);
//! 3) an input shape (Si) is removed: R(Si) == 1.
//!
//! The relations are kept only for shapes of types vertex, edge, face, and
//! solid.
//!
//! The last relation means that:
//! 1) shape Si is not an output shape and
//! 2) no any shape is generated or modified (produced) from shape Si:
//! R(Si) == 1 ==> Si != Tj, G(Si) == 0, M(Si) == 0.
//!
//! No any shape could be generated and modified from the same shape
//! simultaneously: sets G(Si) and M(Si) are not intersected
//! (G(Si) ^ M(Si) == 0).
//!
//! Each output shape should be:
//! 1) an input shape or
//! 2) generated or modified from an input shape (even generated from the
//! implicit null shape if necessary):
//! Tj == Si V (exists Si that Tj <= G(Si) U M(Si)).
//!
//! Recommendations to choose between relations 'generated' and 'modified':
//! 1) a shape is generated from input shapes if it dimension is greater or
//! smaller than the dimensions of the input shapes;
//! 2) a shape is generated from input shapes if these shapes are also output
//! shapes;
//! 3) a shape is generated from input shapes of the same dimension if it is
//! produced by joining shapes generated from these shapes;
//! 4) a shape is modified from an input shape if it replaces the input shape by
//! changes of the location, the tolerance, the bounds of the parametrical
//! space (the faces for a solid), the parametrization and/or by applying of
//! an approximation;
//! 5) a shape is modified from input shapes of the same dimension if it is
//! produced by joining shapes modified from these shapes.
//!
//! Two sequential histories:
//! - one history (H12) of shapes S1, ..., Sm to shapes T1, ..., Tn and
//! - another history (H23) of shapes T1, ..., Tn to shapes Q1, ..., Ql
//! could be merged to the single history (H13) of shapes S1, ..., Sm to shapes
//! Q1, ..., Ql.
//!
//! During the merge:
//! 1) if shape Tj is generated from shape Si then each shape generated or
//! modified from shape Tj is considered as a shape generated from shape Si
//! among shapes Q1, ..., Ql:
//! Tj <= G12(Si), Qk <= G23(Tj) U M23(Tj) ==> Qk <= G13(Si).
//! 2) if shape Tj is modified from shape Si, shape Qk is generated from shape
//! Tj then shape Qk is considered as a shape generated from shape Si among
//! shapes Q1, ..., Ql:
//! Tj <= M12(Si), Qk <= G23(Tj) ==> Qk <= G13(Si);
//! 3) if shape Tj is modified from shape Si, shape Qk is modified from shape
//! Tj then shape Qk is considered as a shape modified from shape Si among
//! shapes Q1, ..., Ql:
//! Tj <= M12(Si), Qk <= M23(Tj) ==> Qk <= M13(Si);
class BRepTools_History: public Standard_Transient
{
public:
//! The types of the historical relations.
enum TRelationType
{
TRelationType_Removed,
TRelationType_Generated,
TRelationType_Modified
};
public:
//! Returns 'true' if the type of the shape is supported by the history.
static Standard_Boolean IsSupportedType(const TopoDS_Shape& theShape)
{
const TopAbs_ShapeEnum aType = theShape.ShapeType();
return aType == TopAbs_VERTEX || aType == TopAbs_EDGE ||
aType == TopAbs_FACE || aType == TopAbs_SOLID;
}
public: //! Methods to set the history.
//! Set the second shape as generated one from the first shape.
Standard_EXPORT void AddGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated);
//! Set the second shape as modified one from the first shape.
Standard_EXPORT void AddModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified);
//! Set the shape as removed one.
Standard_EXPORT void Remove(const TopoDS_Shape& theRemoved);
//! Set the second shape as the only generated one from the first one.
Standard_EXPORT void ReplaceGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated);
//! Set the second shape as the only modified one from the first one.
Standard_EXPORT void ReplaceModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified);
//! Clears the history.
void Clear()
{
myShapeToModified.Clear();
myShapeToGenerated.Clear();
myRemoved.Clear();
}
public: //! Methods to read the history.
//! Returns all shapes generated from the shape.
Standard_EXPORT
const TopTools_ListOfShape& Generated(const TopoDS_Shape& theInitial) const;
//! Returns all shapes modified from the shape.
Standard_EXPORT
const TopTools_ListOfShape& Modified(const TopoDS_Shape& theInitial) const;
//! Returns 'true' if the shape is removed.
Standard_EXPORT
Standard_Boolean IsRemoved(const TopoDS_Shape& theInitial) const;
public: //! A method to merge a next history to this history.
//! Merges the next history to this history.
Standard_EXPORT void Merge(const Handle(BRepTools_History)& theHistory23);
public:
//! Define the OCCT RTTI for the type.
DEFINE_STANDARD_RTTIEXT(BRepTools_History, Standard_Transient)
private:
//! Prepares the shapes generated from the first shape to set the second one
//! as generated one from the first one by the addition or the replacement.
//! Returns 'true' on success.
Standard_Boolean prepareGenerated(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theGenerated);
//! Prepares the shapes modified from the first shape to set the second one
//! as modified one from the first one by the addition or the replacement.
//! Returns 'true' on success.
Standard_Boolean prepareModified(
const TopoDS_Shape& theInitial, const TopoDS_Shape& theModified);
private: //! Data to keep the history.
//! Maps each input shape to all shapes modified from it.
//! If an input shape is not bound to the map then
//! there is no shapes modified from the shape.
//! No any shape should be mapped to an empty list.
TopTools_DataMapOfShapeListOfShape myShapeToModified;
//! Maps each input shape to all shapes generated from it.
//! If an input shape is not bound to the map then
//! there is no shapes generated from the shape.
//! No any shape should be mapped to an empty list.
TopTools_DataMapOfShapeListOfShape myShapeToGenerated;
TopTools_MapOfShape myRemoved; //!< The removed shapes.
private: //! Auxiliary members to read the history.
//! An auxiliary empty list.
static const TopTools_ListOfShape myEmptyList;
//! A method to export the auxiliary list.
Standard_EXPORT static const TopTools_ListOfShape& emptyList();
private:
//! Auxiliary messages.
static const char* myMsgUnsupportedType;
static const char* myMsgGeneratedAndRemoved;
static const char* myMsgModifiedAndRemoved;
static const char* myMsgGeneratedAndModified;
};
#endif // _BRepTools_History_HeaderFile

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src/BRepTools/FILES
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@@ -4,6 +4,8 @@ BRepTools_DataMapIteratorOfMapOfVertexPnt2d.hxx
BRepTools_Debug.cxx
BRepTools_GTrsfModification.cxx
BRepTools_GTrsfModification.hxx
BRepTools_History.cxx
BRepTools_History.hxx
BRepTools_MapOfVertexPnt2d.hxx
BRepTools_Modification.cxx
BRepTools_Modification.hxx