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125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
// Created on: 1996-01-10
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// Created by: Denis PASCAL
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// Copyright (c) 1996-1999 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 <Draw_Display.hxx>
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#include <DrawDim.hxx>
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#include <DrawDim_PlanarDistance.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_Line.hxx>
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#include <GeomAPI_ProjectPointOnCurve.hxx>
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#include <gp_Lin.hxx>
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#include <gp_Pnt.hxx>
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#include <Standard_Type.hxx>
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#include <TopExp.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Shape.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(DrawDim_PlanarDistance,DrawDim_PlanarDimension)
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//=======================================================================
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//function : Draw
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//purpose :
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//=======================================================================
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void DrawDim_PlanarDistance::Draw
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(const gp_Pnt& point, const TopoDS_Edge& edge, Draw_Display& dis) const
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{
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Standard_Real f,l;
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Handle(Geom_Curve) line = BRep_Tool::Curve(edge,f,l);
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GeomAPI_ProjectPointOnCurve pj (point,Handle(Geom_Curve)::DownCast(line));
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if (pj.NbPoints() == 1) {
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gp_Pnt first = point;
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gp_Pnt last = pj.Point(1);
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dis.Draw (first,last);
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gp_Pnt p ((first.X()+ last.X())/2,(first.Y()+ last.Y())/2,(first.Z()+ last.Z())/2);
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DrawText(p,dis);
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}
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}
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//=======================================================================
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//function : DrawDim_PlanarDistance
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//purpose :
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//=======================================================================
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DrawDim_PlanarDistance::DrawDim_PlanarDistance (const TopoDS_Face& face,
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const TopoDS_Shape& geom1,
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const TopoDS_Shape& geom2)
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{
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myPlane = face; myGeom1 = geom1; myGeom2 = geom2;
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}
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//=======================================================================
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//function : DrawDim_PlanarDistance
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//purpose :
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//=======================================================================
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DrawDim_PlanarDistance::DrawDim_PlanarDistance (const TopoDS_Shape& geom1,
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const TopoDS_Shape& geom2)
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{
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myGeom1 = geom1; myGeom2 = geom2;
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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_PlanarDistance::DrawOn(Draw_Display& dis) const
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{
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if (myGeom1.ShapeType() == TopAbs_VERTEX && myGeom2.ShapeType() == TopAbs_VERTEX) {
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gp_Pnt first = BRep_Tool::Pnt(TopoDS::Vertex(myGeom1));
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gp_Pnt last = BRep_Tool::Pnt(TopoDS::Vertex(myGeom2));
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dis.Draw (first,last);
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gp_Pnt p ((first.X()+ last.X())/2,(first.Y()+ last.Y())/2,(first.Z()+ last.Z())/2);
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DrawText(p,dis);
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return;
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}
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else if (myGeom1.ShapeType() == TopAbs_VERTEX && myGeom2.ShapeType() == TopAbs_EDGE) {
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gp_Pnt point = BRep_Tool::Pnt(TopoDS::Vertex(myGeom1));
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Draw (point,TopoDS::Edge(myGeom2),dis);
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return;
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}
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else if (myGeom1.ShapeType() == TopAbs_EDGE && myGeom2.ShapeType() == TopAbs_VERTEX) {
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gp_Pnt point = BRep_Tool::Pnt(TopoDS::Vertex(myGeom2));
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Draw (point,TopoDS::Edge(myGeom1),dis);
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return;
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}
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else if (myGeom1.ShapeType() == TopAbs_EDGE && myGeom2.ShapeType() == TopAbs_EDGE) {
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Standard_Real f,l;
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Handle(Geom_Curve) C = BRep_Tool::Curve (TopoDS::Edge(myGeom1),f,l);
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if (!C.IsNull()) {
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Handle(Geom_Line) L = Handle(Geom_Line)::DownCast(C);
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if (!L.IsNull()) {
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gp_Pnt point = L->Lin().Location();
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TopoDS_Edge edge = TopoDS::Edge(myGeom2);
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Draw (point,edge,dis);
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return;
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}
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}
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}
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#ifdef OCCT_DEBUG
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cout << " DrawDim_PlanarDistance::DrawOn : dimension error" << endl;
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#endif
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}
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