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110 lines
3.6 KiB
C++
Executable File
110 lines
3.6 KiB
C++
Executable File
// Created on: 1994-02-24
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// Created by: Laurent BOURESCHE
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// Copyright (c) 1994-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <BRepLProp.ixx>
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#include <Precision.hxx>
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#include <BRepLProp_CLProps.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Vec.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopAbs_Orientation.hxx>
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//=======================================================================
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//function : Continuity
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//purpose :
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//=======================================================================
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GeomAbs_Shape BRepLProp::Continuity(const BRepAdaptor_Curve& C1,
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const BRepAdaptor_Curve& C2,
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const Standard_Real u1,
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const Standard_Real u2,
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const Standard_Real tl,
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const Standard_Real ta)
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{
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GeomAbs_Shape cont = GeomAbs_C0;
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Standard_Boolean fini = Standard_False;
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gp_Vec d1,d2;
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gp_Dir dir1,dir2;
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GeomAbs_Shape cont1 = C1.Continuity(), cont2 = C2.Continuity();
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Standard_Integer n1 = 0, n2 = 0;
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if (cont1 >= 5) n1 = 3;
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else if(cont1 == 4) n1 = 2;
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else if(cont1 == 2) n1 = 1;
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if (cont2 >= 5) n2 = 3;
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else if(cont2 == 4) n2 = 2;
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else if(cont2 == 2) n2 = 1;
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BRepLProp_CLProps clp1(C1,u1,n1,tl);
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BRepLProp_CLProps clp2(C2,u2,n2,tl);
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if(!(clp1.Value().IsEqual(clp2.Value(),tl))) {
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Standard_Failure::Raise("Courbes non jointives");
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}
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Standard_Integer min = Min(n1,n2);
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if ( min >= 1 ) {
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d1 = clp1.D1();
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d2 = clp2.D1();
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if(C1.Edge().Orientation() == TopAbs_REVERSED) d1.Reverse();
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if(C2.Edge().Orientation() == TopAbs_REVERSED) d2.Reverse();
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if(d1.IsEqual(d2,tl,ta)) {
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cont = GeomAbs_C1;
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}
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else if(clp1.IsTangentDefined() && clp2.IsTangentDefined()){
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clp1.Tangent(dir1);
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clp2.Tangent(dir2);
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if(C1.Edge().Orientation() == TopAbs_REVERSED) dir1.Reverse();
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if(C2.Edge().Orientation() == TopAbs_REVERSED) dir2.Reverse();
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if(dir1.IsEqual(dir2,ta)){
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cont = GeomAbs_G1;
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}
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fini = Standard_True;
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}
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else {fini = Standard_True; }
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}
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if ( min >= 2 && !fini ) {
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d1 = clp1.D2();
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d2 = clp2.D2();
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if(d1.IsEqual(d2,tl,ta)){
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cont = GeomAbs_C2;
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}
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}
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const TopoDS_Edge& E1 = C1.Edge();
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const TopoDS_Edge& E2 = C2.Edge();
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if (E1.IsSame(E2) && C1.IsPeriodic() && cont >= GeomAbs_G1)
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cont = GeomAbs_CN;
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return cont;
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}
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//=======================================================================
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//function : Continuity
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//purpose :
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//=======================================================================
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GeomAbs_Shape BRepLProp::Continuity(const BRepAdaptor_Curve& C1,
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const BRepAdaptor_Curve& C2,
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const Standard_Real u1,
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const Standard_Real u2)
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{
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return Continuity(C1,C2,u1,u2,Precision::Confusion(),Precision::Angular());
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}
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