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// File: DrawDim_PlanarDistance.cxx
// Created: Wed Jan 10 14:25:34 1996
// Author: Denis PASCAL
// <dp@zerox>
#include <DrawDim_PlanarDistance.ixx>
#include <DrawDim.hxx>
#include <BRep_Tool.hxx>
#include <TopoDS.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <gp_Lin.hxx>
#include <GeomAPI_ProjectPointOnCurve.hxx>
#include <TopExp.hxx>
//=======================================================================
//function : Draw
//purpose :
//=======================================================================
void DrawDim_PlanarDistance::Draw
(const gp_Pnt& point, const TopoDS_Edge& edge, Draw_Display& dis) const
{
Standard_Real f,l;
Handle(Geom_Curve) line = BRep_Tool::Curve(edge,f,l);
GeomAPI_ProjectPointOnCurve pj (point,Handle(Geom_Curve)::DownCast(line));
if (pj.NbPoints() == 1) {
gp_Pnt first = point;
gp_Pnt last = pj.Point(1);
dis.Draw (first,last);
gp_Pnt p ((first.X()+ last.X())/2,(first.Y()+ last.Y())/2,(first.Z()+ last.Z())/2);
DrawText(p,dis);
}
}
//=======================================================================
//function : DrawDim_PlanarDistance
//purpose :
//=======================================================================
DrawDim_PlanarDistance::DrawDim_PlanarDistance (const TopoDS_Face& face,
const TopoDS_Shape& geom1,
const TopoDS_Shape& geom2)
{
myPlane = face; myGeom1 = geom1; myGeom2 = geom2;
}
//=======================================================================
//function : DrawDim_PlanarDistance
//purpose :
//=======================================================================
DrawDim_PlanarDistance::DrawDim_PlanarDistance (const TopoDS_Shape& geom1,
const TopoDS_Shape& geom2)
{
myGeom1 = geom1; myGeom2 = geom2;
}
//=======================================================================
//function : DrawOn
//purpose :
//=======================================================================
void DrawDim_PlanarDistance::DrawOn(Draw_Display& dis) const
{
if (myGeom1.ShapeType() == TopAbs_VERTEX && myGeom2.ShapeType() == TopAbs_VERTEX) {
gp_Pnt first = BRep_Tool::Pnt(TopoDS::Vertex(myGeom1));
gp_Pnt last = BRep_Tool::Pnt(TopoDS::Vertex(myGeom2));
dis.Draw (first,last);
gp_Pnt p ((first.X()+ last.X())/2,(first.Y()+ last.Y())/2,(first.Z()+ last.Z())/2);
DrawText(p,dis);
return;
}
else if (myGeom1.ShapeType() == TopAbs_VERTEX && myGeom2.ShapeType() == TopAbs_EDGE) {
gp_Pnt point = BRep_Tool::Pnt(TopoDS::Vertex(myGeom1));
Draw (point,TopoDS::Edge(myGeom2),dis);
return;
}
else if (myGeom1.ShapeType() == TopAbs_EDGE && myGeom2.ShapeType() == TopAbs_VERTEX) {
gp_Pnt point = BRep_Tool::Pnt(TopoDS::Vertex(myGeom2));
Draw (point,TopoDS::Edge(myGeom1),dis);
return;
}
else if (myGeom1.ShapeType() == TopAbs_EDGE && myGeom2.ShapeType() == TopAbs_EDGE) {
Standard_Real f,l;
Handle(Geom_Curve) C = BRep_Tool::Curve (TopoDS::Edge(myGeom1),f,l);
if (!C.IsNull()) {
Handle(Geom_Line) L = Handle(Geom_Line)::DownCast(C);
if (!L.IsNull()) {
gp_Pnt point = L->Lin().Location();
TopoDS_Edge edge = TopoDS::Edge(myGeom2);
Draw (point,edge,dis);
return;
}
}
}
cout << " DrawDim_PlanarDistance::DrawOn : dimension error" << endl;
}
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