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// File: DrawDim_PlanarAngle.cxx
// Created: Fri Jan 12 17:49:33 1996
// Author: Denis PASCAL
// <dp@zerox>
#include <DrawDim_PlanarAngle.ixx>
#include <TCollection_AsciiString.hxx>
#include <DrawDim.hxx>
#include <Draw.hxx>
#include <Draw_MarkerShape.hxx>
#include <gp_Pnt.hxx>
#include <gp.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <TopExp.hxx>
#include <BRep_Tool.hxx>
#include <gp_Pln.hxx>
#include <gp_Pnt2d.hxx>
#include <Geom_Plane.hxx>
#include <Geom_Circle.hxx>
#include <Geom2dAPI_InterCurveCurve.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_Line.hxx>
#include <Geom2d_Circle.hxx>
#include <Geom2d_CartesianPoint.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <GeomAPI.hxx>
#include <Geom2dAPI_InterCurveCurve.hxx>
#include <ElSLib.hxx>
#include <ElCLib.hxx>
#include <gp_Ax1.hxx>
#include <gp_Dir2d.hxx>
#include <IntAna2d_AnaIntersection.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <Precision.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TopoDS_Edge.hxx>
#include <DBRep_DrawableShape.hxx>
#include <TopoDS.hxx>
//=======================================================================
//function : DrawDim_PlanarAngle
//purpose :
//=======================================================================
DrawDim_PlanarAngle::DrawDim_PlanarAngle (const TopoDS_Face& face,
const TopoDS_Shape& line1,
const TopoDS_Shape& line2)
{
myPlane = face;
myLine1 = line1;
myLine2 = line2;
myPosition = 100;
}
//=======================================================================
//function : DrawDim_PlanarAngle
//purpose :
//=======================================================================
DrawDim_PlanarAngle::DrawDim_PlanarAngle (const TopoDS_Shape& line1,
const TopoDS_Shape& line2)
{
myLine1 = line1;
myLine2 = line2;
myPosition = 100;
}
//=======================================================================
//function : Sector
//purpose :
//=======================================================================
void DrawDim_PlanarAngle::Sector (const Standard_Boolean reversed, const Standard_Boolean inverted)
{
myIsReversed = reversed;
myIsInverted = inverted;
}
//=======================================================================
//function : Position
//purpose :
//=======================================================================
void DrawDim_PlanarAngle::Position (const Standard_Real value)
{
myPosition = value;
}
//=======================================================================
//function : DrawOn
//purpose : line1^line2 suppose positifs
//=======================================================================
void DrawDim_PlanarAngle::DrawOn(Draw_Display& dis) const
{
Standard_Boolean clockwise = myIsReversed;
Standard_Boolean parallel = !myIsInverted;
// geometrie
gp_Pln plane = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(myPlane))->Pln();
//if (plane.IsNull()) return;
if (!(myLine1.ShapeType() == TopAbs_EDGE)) return;
if (!(myLine2.ShapeType() == TopAbs_EDGE)) return;
Standard_Real s1,e1,s2,e2;
Handle(Geom_Curve) curve1 = BRep_Tool::Curve(TopoDS::Edge(myLine1),s1,e1);
Handle(Geom_Curve) curve2 = BRep_Tool::Curve(TopoDS::Edge(myLine2),s2,e2);
if (!curve1->IsKind(STANDARD_TYPE(Geom_Line)) || !curve2->IsKind(STANDARD_TYPE(Geom_Line))) return;
Handle(Geom2d_Geometry) L1 = GeomAPI::To2d (curve1,plane);
if (L1->IsInstance(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
L1 = ((Handle(Geom2d_TrimmedCurve)&) L1)->BasisCurve();
}
gp_Lin2d l1 = ((Handle(Geom2d_Line)&) L1)->Lin2d();
Handle(Geom2d_Geometry) L2 = GeomAPI::To2d (curve2,plane);
if (L2->IsInstance(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
L2 = ((Handle(Geom2d_TrimmedCurve)&) L2)->BasisCurve();
}
gp_Lin2d l2 = ((Handle(Geom2d_Line)&) L2)->Lin2d();
//
IntAna2d_AnaIntersection inter;
inter.Perform(l1,l2);
if (!inter.IsDone() || !inter.NbPoints()) return;
gp_Pnt2d pinter = inter.Point(1).Value();
//
Standard_Real angle;
angle = Abs(l1.Direction().Angle(l2.Direction()));
gp_Circ2d c (gp_Ax2d (pinter,l1.Direction()),myPosition);
// retour au plan
Handle(Geom_Curve) C = GeomAPI::To3d (new Geom2d_Circle(c),plane);
gp_Circ circle = ((Handle(Geom_Circle)&) C)->Circ();
//
Standard_Real p1=0., p2=0.;
angle = Abs(angle);
if (parallel && !clockwise) {
p1 = 0.0;
p2 = angle;
dis.Draw(circle,0.0,angle);
}
if (!parallel && !clockwise) {
p1 = angle;
p2 = PI;
}
if (parallel && clockwise) {
p1 = PI;
p2 = PI+angle;
}
if (!parallel && clockwise) {
p1 = PI+angle;
p2 = 2*PI;
}
// affichage
dis.Draw(circle,p1,p2);
Standard_Real ptext = (p1+p2)/2;
gp_Pnt pnttext = ElCLib::Value(ptext,circle);
//
DrawText(pnttext,dis);
}
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