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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
140 lines
4.1 KiB
C++
140 lines
4.1 KiB
C++
// 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 <ChFi2d_ChamferAPI.hxx>
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#include <Precision.hxx>
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#include <gp_Pnt.hxx>
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#include <GC_MakeLine.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <TopoDS_Iterator.hxx>
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#include <TopoDS.hxx>
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// An empty constructor.
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ChFi2d_ChamferAPI::ChFi2d_ChamferAPI()
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{
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}
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// A constructor accepting a wire consisting of two linear edges.
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ChFi2d_ChamferAPI::ChFi2d_ChamferAPI(const TopoDS_Wire& theWire) :
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myStart1(0.),
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myEnd1(0.),
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myStart2(0.),
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myEnd2(0.),
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myCommonStart1(Standard_False),
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myCommonStart2(Standard_False)
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{
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Init(theWire);
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}
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// A constructor accepting two linear edges.
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ChFi2d_ChamferAPI::ChFi2d_ChamferAPI(const TopoDS_Edge& theEdge1, const TopoDS_Edge& theEdge2) :
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myStart1(0.),
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myEnd1(0.),
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myStart2(0.),
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myEnd2(0.),
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myCommonStart1(Standard_False),
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myCommonStart2(Standard_False)
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{
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Init(theEdge1, theEdge2);
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}
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// Initializes the class by a wire consisting of two libear edges.
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void ChFi2d_ChamferAPI::Init(const TopoDS_Wire& theWire)
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{
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TopoDS_Edge E1, E2;
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TopoDS_Iterator itr(theWire);
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for (; itr.More(); itr.Next())
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{
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if (E1.IsNull())
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E1 = TopoDS::Edge(itr.Value());
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else if (E2.IsNull())
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E2 = TopoDS::Edge(itr.Value());
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else
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break;
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}
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Init(E1, E2);
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}
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// Initializes the class by two linear edges.
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void ChFi2d_ChamferAPI::Init(const TopoDS_Edge& theEdge1, const TopoDS_Edge& theEdge2)
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{
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myEdge1 = theEdge1;
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myEdge2 = theEdge2;
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}
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// Constructs a chamfer edge.
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// Returns true if the edge is constructed.
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Standard_Boolean ChFi2d_ChamferAPI::Perform()
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{
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myCurve1 = BRep_Tool::Curve(myEdge1, myStart1, myEnd1);
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myCurve2 = BRep_Tool::Curve(myEdge2, myStart2, myEnd2);
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// searching for common points
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if (myCurve1->Value(myStart1).IsEqual(myCurve2->Value(myEnd2), Precision::Confusion()))
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{
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myCommonStart1 = true;
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myCommonStart2 = false;
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}
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else
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{
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if (myCurve1->Value(myEnd1).IsEqual(myCurve2->Value(myStart2), Precision::Confusion()))
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{
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myCommonStart1 = false;
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myCommonStart2 = true;
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}
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else
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{
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if (myCurve1->Value(myEnd1).IsEqual(myCurve2->Value(myEnd2), Precision::Confusion()))
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{
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myCommonStart1 = false;
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myCommonStart2 = false;
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}
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else
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{
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myCommonStart1 = true;
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myCommonStart2 = true;
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}
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}
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}
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return Standard_True;
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}
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// Returns the result (chamfer edge, modified edge1, modified edge2).
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TopoDS_Edge ChFi2d_ChamferAPI::Result(TopoDS_Edge& theEdge1, TopoDS_Edge& theEdge2,
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const Standard_Real theLength1, const Standard_Real theLength2)
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{
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TopoDS_Edge aResult;
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if (Abs(myEnd1 - myStart1) < theLength1)
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return aResult;
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if (Abs(myEnd2 - myStart2) < theLength2)
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return aResult;
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Standard_Real aCommon1 = (myCommonStart1?myStart1:myEnd1) + (((myStart1 > myEnd1)^myCommonStart1)?theLength1:-theLength1);
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Standard_Real aCommon2 = (myCommonStart2?myStart2:myEnd2) + (((myStart2 > myEnd2)^myCommonStart2)?theLength2:-theLength2);
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// make chamfer edge
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GC_MakeLine aML(myCurve1->Value(aCommon1), myCurve2->Value(aCommon2));
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BRepBuilderAPI_MakeEdge aBuilder(aML.Value(), myCurve1->Value(aCommon1), myCurve2->Value(aCommon2));
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aResult = aBuilder.Edge();
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// divide first edge
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BRepBuilderAPI_MakeEdge aDivider1(myCurve1, aCommon1, (myCommonStart1?myEnd1:myStart1));
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theEdge1 = aDivider1.Edge();
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// divide second edge
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BRepBuilderAPI_MakeEdge aDivider2(myCurve2, aCommon2, (myCommonStart2?myEnd2:myStart2));
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theEdge2 = aDivider2.Edge();
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return aResult;
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}
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