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https://git.dev.opencascade.org/repos/occt.git
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9b372aa8ba
Code is corrected to avoid local variables of reference type pointing to fields of temporary objects.
154 lines
4.1 KiB
C++
154 lines
4.1 KiB
C++
// Created on: 1997-04-21
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// Created by: Denis PASCAL
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// Copyright (c) 1997-1999 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_Tool.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <Draw_Display.hxx>
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#include <DrawDim.hxx>
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#include <DrawDim_Distance.hxx>
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#include <gp_Ax1.hxx>
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#include <gp_Ax2.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Vec.hxx>
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#include <Precision.hxx>
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#include <Standard_Type.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <TopExp_Explorer.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Vertex.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(DrawDim_Distance,DrawDim_Dimension)
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//=======================================================================
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//function : DrawDim_Distance
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//purpose :
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//=======================================================================
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DrawDim_Distance::DrawDim_Distance (const TopoDS_Face& plane1,
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const TopoDS_Face& plane2)
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{
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myPlane1 = plane1;
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myPlane2 = plane2;
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}
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//=======================================================================
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//function : DrawDim_Distance
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//purpose :
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//=======================================================================
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DrawDim_Distance::DrawDim_Distance (const TopoDS_Face& plane1)
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{
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myPlane1 = plane1;
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}
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//=======================================================================
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//function : Plane1
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//purpose :
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//=======================================================================
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const TopoDS_Face& DrawDim_Distance::Plane1() const
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{
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return myPlane1;
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}
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//=======================================================================
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//function : Plane1
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//purpose :
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//=======================================================================
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void DrawDim_Distance::Plane1(const TopoDS_Face& face)
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{
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myPlane1 = face;
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}
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//=======================================================================
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//function : Plane2
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//purpose :
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//=======================================================================
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const TopoDS_Face& DrawDim_Distance::Plane2() const
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{
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return myPlane2;
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}
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//=======================================================================
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//function : Plane2
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//purpose :
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//=======================================================================
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void DrawDim_Distance::Plane2(const TopoDS_Face& face)
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{
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myPlane2 = face;
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}
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//=======================================================================
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//function : DrawOn
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//purpose :
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//=======================================================================
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void DrawDim_Distance::DrawOn(Draw_Display& dis) const
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{
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// compute the points and the direction
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BRepAdaptor_Surface surf1(myPlane1);
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// today we process only planar faces
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if (surf1.GetType() != GeomAbs_Plane)
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return;
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gp_Ax1 anAx1 = surf1.Plane().Axis();
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gp_Vec V = anAx1.Direction();
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// output
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gp_Pnt FAttach; // first attach point
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gp_Pnt SAttach; // second attach point
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// first point, try a vertex
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TopExp_Explorer explo(myPlane1,TopAbs_VERTEX);
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if (explo.More()) {
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FAttach = BRep_Tool::Pnt(TopoDS::Vertex(explo.Current()));
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}
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else {
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// no vertex, use the origin
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FAttach = anAx1.Location();
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}
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if (!myPlane2.IsNull()) {
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// translate the point until the second face
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BRepAdaptor_Surface surf2(myPlane2);
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surf2.D0(0,0,SAttach);
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Standard_Real r = V.Dot(gp_Vec(FAttach,SAttach));
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V *= r;
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}
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SAttach = FAttach;
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SAttach.Translate(V);
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// DISPLAY
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dis.Draw (FAttach,SAttach);
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V *= 0.5;
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FAttach.Translate(V);
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dis.DrawMarker(FAttach, Draw_Losange);
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DrawText(FAttach,dis);
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}
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