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9ce99357a4
The API classes in the package BRepAlgo providing access to old Boolean operations (Fuse, Common, Cut, Section) are marked as deprecated. Corresponding classes from the package BRepAlgoAPI should be used instead.
359 lines
11 KiB
C++
359 lines
11 KiB
C++
// Created on: 1994-02-18
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// Created by: Remi LEQUETTE
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// Copyright (c) 1994-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <BRep_Builder.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAlgo_Section.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepBuilderAPI_MakeShell.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_Surface.hxx>
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#include <gp_Pln.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopOpeBRepBuild_HBuilder.hxx>
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#include <TopOpeBRepBuild_Tools.hxx>
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#include <TopOpeBRepDS_BuildTool.hxx>
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#include <TopOpeBRepDS_HDataStructure.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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static TopoDS_Shape MakeShape(const Handle(Geom_Surface)& );
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Standard_DISABLE_DEPRECATION_WARNINGS
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//=======================================================================
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//function : BRepAlgo_Section
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//purpose :
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//=======================================================================
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BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
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const TopoDS_Shape& S2,
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const Standard_Boolean PerformNow)
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: BRepAlgo_BooleanOperation(S1, S2)
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{
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InitParameters();
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myS1Changed = Standard_True;
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myS2Changed = Standard_True;
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if(myS1.IsNull() || S2.IsNull()) {
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myshapeisnull = Standard_True;
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}
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if (PerformNow)
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Build();
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}
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//=======================================================================
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//function : BRepAlgo_Section
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//purpose :
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//=======================================================================
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BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
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const gp_Pln& Pl,
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const Standard_Boolean PerformNow)
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: BRepAlgo_BooleanOperation(S1, MakeShape(new Geom_Plane(Pl)))
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{
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InitParameters();
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myS1Changed = Standard_True;
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myS2Changed = Standard_True;
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if(S1.IsNull() || myS2.IsNull()) {
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myshapeisnull = Standard_True;
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}
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if (PerformNow)
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Build();
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}
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//=======================================================================
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//function : BRepAlgo_Section
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//purpose :
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//=======================================================================
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BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
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const Handle(Geom_Surface)& Sf,
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const Standard_Boolean PerformNow)
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: BRepAlgo_BooleanOperation(S1, MakeShape(Sf))
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{
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InitParameters();
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myS1Changed = Standard_True;
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myS2Changed = Standard_True;
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if(S1.IsNull() || myS2.IsNull()) {
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myshapeisnull = Standard_True;
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}
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if (PerformNow)
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Build();
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}
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//=======================================================================
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//function : BRepAlgo_Section
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//purpose :
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//=======================================================================
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BRepAlgo_Section::BRepAlgo_Section(const Handle(Geom_Surface)& Sf,
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const TopoDS_Shape& S2,
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const Standard_Boolean PerformNow)
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: BRepAlgo_BooleanOperation(MakeShape(Sf), S2)
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{
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InitParameters();
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myS1Changed = Standard_True;
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myS2Changed = Standard_True;
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if(myS1.IsNull() || S2.IsNull()) {
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myshapeisnull = Standard_True;
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}
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if (PerformNow)
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Build();
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}
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//=======================================================================
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//function : BRepAlgo_Section
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//purpose :
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//=======================================================================
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BRepAlgo_Section::BRepAlgo_Section(const Handle(Geom_Surface)& Sf1,
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const Handle(Geom_Surface)& Sf2,
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const Standard_Boolean PerformNow)
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: BRepAlgo_BooleanOperation(MakeShape(Sf1), MakeShape(Sf2))
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{
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InitParameters();
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myS1Changed = Standard_True;
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myS2Changed = Standard_True;
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if(myS1.IsNull() || myS2.IsNull()) {
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myshapeisnull = Standard_True;
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}
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if (PerformNow)
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Build();
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}
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//=======================================================================
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//function : Init1
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//purpose : initialize the first Shape
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//=======================================================================
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void BRepAlgo_Section::Init1(const TopoDS_Shape& S1)
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{
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if(!S1.IsNull()) {
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if (!S1.IsEqual(myS1)) {
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myS1 = S1;
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myS1Changed = Standard_True;
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}
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} else {
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if(!myS1.IsNull()) {
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myS1 = S1;
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myS1Changed = Standard_True;
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}
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}
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if (myS1Changed || myS2Changed)
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NotDone();
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}
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//=======================================================================
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//function : Init1
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//purpose : initialize the first Shape
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//=======================================================================
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void BRepAlgo_Section::Init1(const gp_Pln& Pl)
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{
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Init1(MakeShape(new Geom_Plane(Pl)));
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}
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//=======================================================================
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//function : Init1
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//purpose : initialize the first Shape
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//=======================================================================
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void BRepAlgo_Section::Init1(const Handle(Geom_Surface)& Sf)
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{
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Init1(MakeShape(Sf));
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}
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//=======================================================================
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//function : Init2
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//purpose : initialize the second Shape
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//=======================================================================
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void BRepAlgo_Section::Init2(const TopoDS_Shape& S2)
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{
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if(!S2.IsNull()) {
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if (!S2.IsEqual(myS2)) {
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myS2 = S2;
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myS2Changed = Standard_True;
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}
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} else {
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if(!myS2.IsNull()) {
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myS2 = S2;
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myS2Changed = Standard_True;
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}
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}
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if (myS1Changed || myS2Changed)
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NotDone();
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}
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//=======================================================================
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//function : Init2
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//purpose : initialize the second Shape
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//=======================================================================
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void BRepAlgo_Section::Init2(const gp_Pln& Pl)
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{
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Init2(MakeShape(new Geom_Plane(Pl)));
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}
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//=======================================================================
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//function : Init2
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//purpose : initialize the second Shape
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//=======================================================================
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void BRepAlgo_Section::Init2(const Handle(Geom_Surface)& Sf)
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{
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Init2(MakeShape(Sf));
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}
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//=======================================================================
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//function : Approximation
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//purpose : To learn if an approximation of the geometry is calculated
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//=======================================================================
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void BRepAlgo_Section::Approximation(const Standard_Boolean Approx)
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{
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TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
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TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
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TopOpeBRepTool_OutCurveType OCT =
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(Approx) ? TopOpeBRepTool_APPROX :TopOpeBRepTool_BSPLINE1;
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if (GTofBTofBuilder.TypeC3D() != OCT) {
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myApproxChanged = Standard_True;
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GTofBTofBuilder.Define(OCT);
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}
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if (myApproxChanged)
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NotDone();
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}
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//=======================================================================
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//function : ComputePCurveOn1
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//purpose : To learn if PCurves are calculated on the faces of the 1st Shape
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//=======================================================================
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void BRepAlgo_Section::ComputePCurveOn1(const Standard_Boolean ComputePCurve1)
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{
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TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
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TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
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if( GTofBTofBuilder.CompPC1() != ComputePCurve1) {
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GTofBTofBuilder.DefinePCurves1(ComputePCurve1);
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myPCurve1Changed = Standard_True;
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}
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if(myPCurve1Changed)
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NotDone();
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}
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//=======================================================================
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//function : ComputePCurve2
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//purpose : To learn if PCurves are calculated on the faces of the 2nd Shape
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//=======================================================================
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void BRepAlgo_Section::ComputePCurveOn2(const Standard_Boolean ComputePCurve2)
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{
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TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
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TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
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if( GTofBTofBuilder.CompPC2() != ComputePCurve2) {
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GTofBTofBuilder.DefinePCurves2(ComputePCurve2);
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myPCurve2Changed = Standard_True;
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}
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if(myPCurve2Changed)
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NotDone();
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}
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//=======================================================================
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//function : Build
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//purpose : compute the section
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//=======================================================================
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void BRepAlgo_Section::Build()
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{
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if (myS1Changed ||
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myS2Changed ||
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myApproxChanged ||
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myPCurve1Changed ||
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myPCurve2Changed) {
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PerformDS();
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Standard_Boolean bcw = BuilderCanWork();
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if ( ! bcw || myshapeisnull) return;
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BRep_Builder BB;
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BB.MakeCompound(TopoDS::Compound(myShape));
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Handle(TopOpeBRepBuild_HBuilder) HB = Builder();
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TopTools_ListIteratorOfListOfShape itloe = HB->Section();
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for(; itloe.More(); itloe.Next()) BB.Add(myShape,itloe.Value());
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TopOpeBRepBuild_Tools::CorrectTolerances(myShape);
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Done();
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}
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}
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//=======================================================================
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//function : HasAncestorFaceOn1
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//purpose :
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//=======================================================================
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Standard_Boolean BRepAlgo_Section::HasAncestorFaceOn1(const TopoDS_Shape& E,
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TopoDS_Shape& F)const
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{
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TopoDS_Shape F1,F2; Standard_Integer iC;
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Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
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if ( res ) F = F1;
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return res;
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}
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//=======================================================================
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//function : HasAncestorFaceOn2
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//purpose :
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//=======================================================================
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Standard_Boolean BRepAlgo_Section::HasAncestorFaceOn2(const TopoDS_Shape& E,
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TopoDS_Shape& F)const
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{
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TopoDS_Shape F1,F2; Standard_Integer iC;
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Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
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if ( res ) F = F2;
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return res;
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}
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//=======================================================================
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//function : InitParameters
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//purpose : initialize the fields of the class
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//=======================================================================
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void BRepAlgo_Section::InitParameters()
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{
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TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
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TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
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GTofBTofBuilder.Define(TopOpeBRepTool_BSPLINE1);
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GTofBTofBuilder.DefineCurves(Standard_True);
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GTofBTofBuilder.DefinePCurves1(Standard_False);
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GTofBTofBuilder.DefinePCurves2(Standard_False);
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myS1Changed = Standard_False;
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myS2Changed = Standard_False;
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//
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myApproxChanged = Standard_False;
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//
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myPCurve1Changed = Standard_False;
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//
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myPCurve2Changed = Standard_False;
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myshapeisnull = Standard_False;
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}
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//=======================================================================
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//function : MakeShape
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//purpose :
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//=======================================================================
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TopoDS_Shape MakeShape(const Handle(Geom_Surface)& S)
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{
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GeomAbs_Shape c = S->Continuity();
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if (c >= GeomAbs_C2) return BRepBuilderAPI_MakeFace(S, Precision::Confusion());
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else return BRepBuilderAPI_MakeShell(S);
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}
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Standard_ENABLE_DEPRECATION_WARNINGS
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