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// File: DrawDim_Distance.cxx
// Created: Mon Apr 21 14:38:30 1997
// Author: Denis PASCAL
#include <DrawDim_Distance.ixx>
#include <DrawDim.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <gp_Pln.hxx>
#include <gp_Ax1.hxx>
#include <gp_Ax2.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS_Vertex.hxx>
#include <BRep_Tool.hxx>
#include <Precision.hxx>
#include <TCollection_AsciiString.hxx>
//=======================================================================
//function : DrawDim_Distance
//purpose :
//=======================================================================
DrawDim_Distance::DrawDim_Distance (const TopoDS_Face& plane1,
const TopoDS_Face& plane2)
{
myPlane1 = plane1;
myPlane2 = plane2;
}
//=======================================================================
//function : DrawDim_Distance
//purpose :
//=======================================================================
DrawDim_Distance::DrawDim_Distance (const TopoDS_Face& plane1)
{
myPlane1 = plane1;
}
//=======================================================================
//function : Plane1
//purpose :
//=======================================================================
const TopoDS_Face& DrawDim_Distance::Plane1() const
{
return myPlane1;
}
//=======================================================================
//function : Plane1
//purpose :
//=======================================================================
void DrawDim_Distance::Plane1(const TopoDS_Face& face)
{
myPlane1 = face;
}
//=======================================================================
//function : Plane2
//purpose :
//=======================================================================
const TopoDS_Face& DrawDim_Distance::Plane2() const
{
return myPlane2;
}
//=======================================================================
//function : Plane2
//purpose :
//=======================================================================
void DrawDim_Distance::Plane2(const TopoDS_Face& face)
{
myPlane2 = face;
}
//=======================================================================
//function : DrawOn
//purpose :
//=======================================================================
void DrawDim_Distance::DrawOn(Draw_Display& dis) const
{
// compute the points and the direction
BRepAdaptor_Surface surf1(myPlane1);
// today we process only planar faces
if (surf1.GetType() != GeomAbs_Plane)
return;
const gp_Ax1& anAx1 = surf1.Plane().Axis();
gp_Vec V = anAx1.Direction();
// output
gp_Pnt FAttach; // first attach point
gp_Pnt SAttach; // second attach point
// first point, try a vertex
TopExp_Explorer explo(myPlane1,TopAbs_VERTEX);
if (explo.More()) {
FAttach = BRep_Tool::Pnt(TopoDS::Vertex(explo.Current()));
}
else {
// no vertex, use the origin
FAttach = anAx1.Location();
}
if (!myPlane2.IsNull()) {
// translate the point until the second face
BRepAdaptor_Surface surf2(myPlane2);
surf2.D0(0,0,SAttach);
Standard_Real r = V.Dot(gp_Vec(FAttach,SAttach));
V *= r;
}
SAttach = FAttach;
SAttach.Translate(V);
// DISPLAY
dis.Draw (FAttach,SAttach);
V *= 0.5;
FAttach.Translate(V);
dis.DrawMarker(FAttach, Draw_Losange);
DrawText(FAttach,dis);
}
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