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0027954: Create topology-preserving offset computation algorithm

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New topology-preserving offset algorithm has been added. It allows to construct offset shape of build solid.
test cases have been added.
Documentation has been updated to be up to date.

Minor corrections.
Grid is renamed for simplification purposes.
Old constructors are restored with Standard_DEPRECATED macros.
This commit is contained in:
aml
2016-12-08 16:30:24 +03:00
committed by apn
parent b443d53628
commit 8013367c92
90 changed files with 2467 additions and 156 deletions
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127
src/BRepOffsetAPI/BRepOffsetAPI_MakeOffsetShape.cxx
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@@ -14,9 +14,6 @@
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
// Modified by skv - Tue Mar 15 16:20:43 2005
// Add methods for supporting history.
#include <BRepOffset_MakeOffset.hxx>
#include <BRepOffsetAPI_MakeOffsetShape.hxx>
#include <Standard_ConstructionError.hxx>
@@ -28,6 +25,7 @@
//purpose :
//=======================================================================
BRepOffsetAPI_MakeOffsetShape::BRepOffsetAPI_MakeOffsetShape()
: myLastUsedAlgo(OffsetAlgo_NONE)
{
}
@@ -35,29 +33,72 @@ BRepOffsetAPI_MakeOffsetShape::BRepOffsetAPI_MakeOffsetShape()
//function : BRepOffsetAPI_MakeOffsetShape
//purpose :
//=======================================================================
BRepOffsetAPI_MakeOffsetShape::BRepOffsetAPI_MakeOffsetShape(const TopoDS_Shape& S,
const Standard_Real Offset,
const Standard_Real Tol,
const BRepOffset_Mode Mode,
const Standard_Boolean Intersection,
const Standard_Boolean SelfInter,
const GeomAbs_JoinType Join,
const Standard_Boolean RemoveIntEdges)
: myLastUsedAlgo(OffsetAlgo_NONE)
{
PerformByJoin(S, Offset, Tol, Mode, Intersection, SelfInter, Join, RemoveIntEdges);
}
BRepOffsetAPI_MakeOffsetShape::BRepOffsetAPI_MakeOffsetShape
(const TopoDS_Shape& S,
const Standard_Real Offset,
const Standard_Real Tol,
const BRepOffset_Mode Mode,
//=======================================================================
//function : PerformByJoin
//purpose :
//=======================================================================
void BRepOffsetAPI_MakeOffsetShape::PerformByJoin
(const TopoDS_Shape& S,
const Standard_Real Offset,
const Standard_Real Tol,
const BRepOffset_Mode Mode,
const Standard_Boolean Intersection,
const Standard_Boolean SelfInter,
const GeomAbs_JoinType Join,
const Standard_Boolean RemoveIntEdges)
{
NotDone();
myLastUsedAlgo = OffsetAlgo_JOIN;
myOffsetShape.Initialize (S,Offset,Tol,Mode,Intersection,SelfInter,
Join, Standard_False, RemoveIntEdges);
Build();
myOffsetShape.MakeOffsetShape();
if (!myOffsetShape.IsDone())
return;
myShape = myOffsetShape.Shape();
Done();
}
//=======================================================================
//function : PerformBySimple
//purpose :
//=======================================================================
void BRepOffsetAPI_MakeOffsetShape::PerformBySimple(const TopoDS_Shape& theS,
const Standard_Real theOffsetValue)
{
NotDone();
myLastUsedAlgo = OffsetAlgo_SIMPLE;
mySimpleOffsetShape.Initialize(theS, theOffsetValue);
mySimpleOffsetShape.Perform();
if (!mySimpleOffsetShape.IsDone())
return;
myShape = mySimpleOffsetShape.GetResultShape();
Done();
}
//=======================================================================
//function :MakeOffset
//purpose :
//=======================================================================
const BRepOffset_MakeOffset& BRepOffsetAPI_MakeOffsetShape::MakeOffset() const
const BRepOffset_MakeOffset& BRepOffsetAPI_MakeOffsetShape::MakeOffset() const
{
return myOffsetShape;
}
@@ -66,72 +107,74 @@ const BRepOffset_MakeOffset& BRepOffsetAPI_MakeOffsetShape::MakeOffset() const
//function : Build
//purpose :
//=======================================================================
void BRepOffsetAPI_MakeOffsetShape::Build()
{
if (!IsDone()) {
myOffsetShape.MakeOffsetShape();
if (!myOffsetShape.IsDone()) return;
myShape = myOffsetShape.Shape();
Done();
}
}
//=======================================================================
//function : Generated
//purpose :
//=======================================================================
const TopTools_ListOfShape& BRepOffsetAPI_MakeOffsetShape::Generated (const TopoDS_Shape& S)
{
const TopTools_ListOfShape& BRepOffsetAPI_MakeOffsetShape::Generated (const TopoDS_Shape& S)
{
myGenerated.Clear();
if (!myOffsetShape.ClosingFaces().Contains(S)) {
if (myLastUsedAlgo == OffsetAlgo_JOIN && !myOffsetShape.ClosingFaces().Contains(S))
{
myOffsetShape.OffsetFacesFromShapes ().LastImage (S, myGenerated);
if (!myOffsetShape.ClosingFaces().IsEmpty()) {
if (!myOffsetShape.ClosingFaces().IsEmpty())
{
// Reverse generated shapes in case of small solids.
// Useful only for faces without influence on others.
TopTools_ListIteratorOfListOfShape it(myGenerated);
for (; it.More(); it.Next())
it.Value().Reverse();
it.Value().Reverse();
}
}
else if (myLastUsedAlgo == OffsetAlgo_SIMPLE)
{
TopoDS_Shape aGenShape = mySimpleOffsetShape.Generated(S);
if (!aGenShape.IsNull())
myGenerated.Append(aGenShape);
}
return myGenerated;
}
// Modified by skv - Tue Mar 15 16:20:43 2005 Begin
//=======================================================================
//function : GeneratedEdge
//purpose :
//=======================================================================
const TopTools_ListOfShape& BRepOffsetAPI_MakeOffsetShape::GeneratedEdge (const TopoDS_Shape& S)
{
const TopTools_ListOfShape& BRepOffsetAPI_MakeOffsetShape::GeneratedEdge (const TopoDS_Shape& S)
{
myGenerated.Clear();
myOffsetShape.OffsetEdgesFromShapes ().LastImage (S, myGenerated);
if (!myGenerated.IsEmpty()) {
if (S.IsSame(myGenerated.First()))
myGenerated.RemoveFirst();
if (myLastUsedAlgo == OffsetAlgo_JOIN)
{
myOffsetShape.OffsetEdgesFromShapes().LastImage (S, myGenerated);
if (!myGenerated.IsEmpty())
{
if (S.IsSame(myGenerated.First()))
myGenerated.RemoveFirst();
}
}
else if (myLastUsedAlgo == OffsetAlgo_SIMPLE)
{
TopoDS_Shape aGenShape = mySimpleOffsetShape.Generated(S);
if (!aGenShape.IsNull())
myGenerated.Append(aGenShape);
}
return myGenerated;
}
//=======================================================================
//function : GetJoinType
//purpose : Query offset join type.
//=======================================================================
GeomAbs_JoinType BRepOffsetAPI_MakeOffsetShape::GetJoinType() const
{
return myOffsetShape.GetJoinType();
}
// Modified by skv - Tue Mar 15 16:20:43 2005 End