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occt/src/StepToTopoDS/StepToTopoDS_TranslateVertexLoop.cxx

128 lines
4.6 KiB
C++

// Created on: 1995-01-03
// Created by: Frederic MAUPAS/Dieter THIEMANN
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 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.
//: gka 09.04.99: S4136: eliminate BRepAPI::Precision()
#include <BRep_Builder.hxx>
#include <StdFail_NotDone.hxx>
#include <StepShape_Vertex.hxx>
#include <StepShape_VertexLoop.hxx>
#include <StepToTopoDS_NMTool.hxx>
#include <StepToTopoDS_Tool.hxx>
#include <StepToTopoDS_TranslateVertex.hxx>
#include <StepToTopoDS_TranslateVertexLoop.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Wire.hxx>
#include <Transfer_TransientProcess.hxx>
//#include <BRepAPI.hxx>
// ============================================================================
// Method : StepToTopoDS_TranslateVertexLoop::StepToTopoDS_TranslateVertexLoop
// Purpose : Empty Constructor
// ============================================================================
StepToTopoDS_TranslateVertexLoop::StepToTopoDS_TranslateVertexLoop()
{
}
// ============================================================================
// Method : StepToTopoDS_TranslateVertexLoop::StepToTopoDS_TranslateVertexLoop
// Purpose : Constructor with a VertexLoop and a Tool
// ============================================================================
StepToTopoDS_TranslateVertexLoop::StepToTopoDS_TranslateVertexLoop(const Handle(StepShape_VertexLoop)& VL,
StepToTopoDS_Tool& T,
StepToTopoDS_NMTool& NMTool)
{
Init(VL, T, NMTool);
}
// ============================================================================
// Method : Init
// Purpose : Init with a VertexLoop and a Tool
// ============================================================================
void StepToTopoDS_TranslateVertexLoop::Init(const Handle(StepShape_VertexLoop)& VL,
StepToTopoDS_Tool& aTool,
StepToTopoDS_NMTool& NMTool)
{
// A Vertex Loop shall be mapped onto a Vertex + Edge + Wire;
if (!aTool.IsBound(VL)) {
BRep_Builder B;
Handle(Transfer_TransientProcess) TP = aTool.TransientProcess();
//:S4136 Standard_Real preci = BRepAPI::Precision();
Handle(StepShape_Vertex) Vtx;
TopoDS_Vertex V1,V2;
TopoDS_Edge E;
TopoDS_Wire W;
Vtx = VL->LoopVertex();
StepToTopoDS_TranslateVertex myTranVtx(Vtx, aTool, NMTool);
if (myTranVtx.IsDone()) {
V1 = TopoDS::Vertex(myTranVtx.Value());
V2 = TopoDS::Vertex(myTranVtx.Value());
}
else {
TP->AddWarning(VL,"VertexLoop not mapped to TopoDS ");
myError = StepToTopoDS_TranslateVertexLoopOther;
done = Standard_False;
return;
}
V1.Orientation(TopAbs_FORWARD);
V2.Orientation(TopAbs_REVERSED);
B.MakeEdge(E);
B.Add(E, V1);
B.Add(E, V2);
B.Degenerated(E, Standard_True);
B.MakeWire(W);
W.Closed (Standard_True);
B.Add(W, E);
aTool.Bind(VL, W);
myResult = W;
myError = StepToTopoDS_TranslateVertexLoopDone;
done = Standard_True;
}
else {
myResult = TopoDS::Wire(aTool.Find(VL));
myError = StepToTopoDS_TranslateVertexLoopDone;
done = Standard_True;
}
}
// ============================================================================
// Method : Value
// Purpose : Return the mapped Shape
// ============================================================================
const TopoDS_Shape& StepToTopoDS_TranslateVertexLoop::Value() const
{
StdFail_NotDone_Raise_if (!done, "StepToTopoDS_TranslateVertexLoop::Value() - no result");
return myResult;
}
// ============================================================================
// Method : Error
// Purpose : Return the TranslateVertexLoop Error code
// ============================================================================
StepToTopoDS_TranslateVertexLoopError StepToTopoDS_TranslateVertexLoop::Error() const
{
return myError;
}