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// Copyright: Matra-Datavision 1996
// File: DsgPrs_DiameterPresentation.cxx
// Created: Wed Aug 21 15:36:02 1996
// Author: Jacques MINOT
// <jmi>
// modified 12-january-98
// Sergey ZARITCHNY
// <szy@androxx.nnov.matra-dtv.fr>
// szy
#include <DsgPrs_DiameterPresentation.ixx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_TextAspect.hxx>
#include <Prs3d_LengthAspect.hxx>
#include <Prs3d_Arrow.hxx>
#include <Prs3d_Text.hxx>
#include <Prs3d_ArrowAspect.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Array1OfVertex.hxx>
#include <gp_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <ElCLib.hxx>
#include <Graphic3d_Vertex.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Aspect_TypeOfLine.hxx>
#include <Aspect_TypeOfMarker.hxx>
#include <Aspect_AspectMarker.hxx>
#include <Quantity_Color.hxx>
#include <DsgPrs.hxx>
//==========================================================================
// function : DsgPrs_DiameterPresentation::Add
// purpose : it is possible to choose the symbol of extremities of the face (arrow, point ...)
//==========================================================================
void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const TCollection_ExtendedString& aText,
const gp_Pnt& AttachmentPoint,
const gp_Circ& aCircle,
const DsgPrs_ArrowSide ArrowPrs,
const Standard_Boolean IsDiamSymbol )
{
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
Standard_Real parat = ElCLib::Parameter(aCircle, AttachmentPoint);
gp_Pnt ptoncirc = ElCLib::Value (parat, aCircle);
// sideline
gp_Pnt center = aCircle.Location();
gp_Vec vecrap (ptoncirc,center);
Standard_Real dist = center.Distance(AttachmentPoint);
Standard_Real aRadius = aCircle.Radius();
Standard_Boolean inside = Standard_False;
gp_Pnt pt1 = AttachmentPoint;
if (dist < aRadius) {
pt1 = ptoncirc;
dist = aRadius;
inside = Standard_True;
}
vecrap.Normalize();
vecrap *= (dist+aRadius);
gp_Pnt OppositePoint = pt1.Translated(vecrap);
Graphic3d_Array1OfVertex V(1,2);
Quantity_Length X,Y,Z;
pt1.Coord(X,Y,Z);
V(1).SetCoord(X,Y,Z);
OppositePoint.Coord(X,Y,Z);
V(2).SetCoord(X,Y,Z);
Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V);
// value
TCollection_ExtendedString Text = aText;
if(IsDiamSymbol)
Text = TCollection_ExtendedString("\330 ") + aText; // VRO (2007-05-17) inserted a blank.
Prs3d_Text::Draw(aPresentation, LA->TextAspect(), Text, AttachmentPoint);
// arrows
gp_Dir arrdir (vecrap);
if (inside) arrdir.Reverse();
gp_Vec vecrap2 = vecrap;
gp_Pnt ptoncirc2 = ptoncirc;
gp_Dir arrdir2 = arrdir;
vecrap2.Normalize();
vecrap2 *= (aCircle.Radius() * 2.);
ptoncirc2.Translate (vecrap2);
arrdir2.Reverse();
DsgPrs::ComputeSymbol(aPresentation,LA,ptoncirc,ptoncirc2,arrdir,arrdir2,ArrowPrs);
}
static Standard_Boolean DsgPrs_InDomain(const Standard_Real fpar,
const Standard_Real lpar,
const Standard_Real para)
{
if (fpar >= 0.) {
if(lpar > fpar)
return ((para >= fpar) && (para <= lpar));
else { // fpar > lpar
Standard_Real delta = 2*PI-fpar;
Standard_Real lp, par, fp;
lp = lpar + delta;
par = para + delta;
while(lp > 2*PI) lp-=2*PI;
while(par > 2*PI) par-=2*PI;
fp = 0.;
return ((par >= fp) && (par <= lp));
}
}
if (para >= (fpar+2*PI)) return Standard_True;
if (para <= lpar) return Standard_True;
return Standard_False;
}
//=======================================================================
//function : DsgPrs_DiameterPresentation::Add
//purpose : SZY 12-february-98
//=======================================================================
void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const TCollection_ExtendedString& aText,
const gp_Pnt& AttachmentPoint,
const gp_Circ& aCircle,
const Standard_Real uFirst,
const Standard_Real uLast,
const DsgPrs_ArrowSide ArrowPrs,//ArrowSide
const Standard_Boolean IsDiamSymbol )
{
Standard_Real fpara = uFirst;
Standard_Real lpara = uLast;
while (lpara > 2*PI) {
fpara -= 2*PI;
lpara -= 2*PI;
}
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
// Handle(Prs3d_TextAspect) TA = aDrawer->TextAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
// AspectText3d from Graphic3d
Standard_Real parEndOfArrow = ElCLib::Parameter(aCircle,AttachmentPoint); //
gp_Pnt EndOfArrow;
gp_Pnt DrawPosition = AttachmentPoint;// point of attachment
gp_Pnt Center = aCircle.Location();
gp_Pnt FirstPoint = ElCLib::Value(uFirst, aCircle);
gp_Pnt SecondPoint = ElCLib::Value(uLast, aCircle);
if ( !DsgPrs_InDomain(fpara,lpara,parEndOfArrow)) {
Standard_Real otherpar = parEndOfArrow + PI;// not in domain
if (otherpar > 2*PI) otherpar -= 2*PI;
if (DsgPrs_InDomain(fpara,lpara,otherpar)) {
parEndOfArrow = otherpar; // parameter on circle
EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
}
else {
gp_Dir dir1(gp_Vec(Center, FirstPoint));
gp_Dir dir2(gp_Vec(Center, SecondPoint));
gp_Lin L1( Center, dir1 );
gp_Lin L2( Center, dir2 );
if(L1.Distance(AttachmentPoint) < L2.Distance(AttachmentPoint))
{
EndOfArrow = FirstPoint; //***
DrawPosition = ElCLib::Value(ElCLib::Parameter( L1, AttachmentPoint ), L1);
}
else
{
EndOfArrow = SecondPoint; //***
DrawPosition = ElCLib::Value(ElCLib::Parameter( L2, AttachmentPoint ), L2);
}
}
// EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
// DrawPosition = AttachmentPoint;
}
else {
EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
DrawPosition = AttachmentPoint;
}
Graphic3d_Array1OfVertex Vrap(1,2);
Quantity_Length X,Y,Z;
DrawPosition.Coord(X,Y,Z);
Vrap(1).SetCoord(X,Y,Z);
EndOfArrow.Coord(X,Y,Z);
Vrap(2).SetCoord(X,Y,Z);
Prs3d_Root::CurrentGroup(aPresentation)->Polyline(Vrap);
// text
TCollection_ExtendedString Text = aText;
if(IsDiamSymbol)
Text = TCollection_ExtendedString("\330 ") + Text;// => \330 | \370?
Prs3d_Text::Draw(aPresentation,LA->TextAspect(),Text,DrawPosition);
// Add presentation of arrow
gp_Dir DirOfArrow(gp_Vec(DrawPosition, EndOfArrow).XYZ());
DsgPrs::ComputeSymbol(aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs);
}
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