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// File: DsgPrs_RadiusPresentation.cxx
// Created: Wed Mar 1 15:50:43 1995
// Author: Arnaud BOUZY
// <adn>
//modified 20-feb-98 by <SZY>
// Sergei Zaritchny
#include <DsgPrs_RadiusPresentation.ixx>
#include <gp_Lin.hxx>
#include <gp_Dir.hxx>
#include <gp_Circ.hxx>
#include <ElCLib.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Array1OfVertex.hxx>
#include <Prs3d_Arrow.hxx>
#include <Prs3d_ArrowAspect.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_LengthAspect.hxx>
#include <Prs3d_Text.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>
#include <Precision.hxx>
#include <gce_MakeLin.hxx>
#include <gce_MakeDir.hxx>
static Standard_Boolean DsgPrs_InDomain(const Standard_Real fpar,
const Standard_Real lpar,
const Standard_Real para)
{
if (fpar >= 0.) {
return ((para >= fpar) && (para <= lpar));
}
if (para >= (fpar+2*PI)) return Standard_True;
if (para <= lpar) return Standard_True;
return Standard_False;
}
//=======================================================================
//function : Add
//purpose :
//=======================================================================
void DsgPrs_RadiusPresentation::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 firstparam,
const Standard_Real lastparam,
const Standard_Boolean drawFromCenter,
const Standard_Boolean reverseArrow)
{
Standard_Real fpara = firstparam;
Standard_Real lpara = lastparam;
while (lpara > 2*PI) {
fpara -= 2*PI;
lpara -= 2*PI;
}
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
Standard_Real parat = ElCLib::Parameter(aCircle,AttachmentPoint);
gp_Pnt attpoint = AttachmentPoint;
Standard_Boolean otherside = Standard_False;
if ( !DsgPrs_InDomain(fpara,lpara,parat)) {
Standard_Real otherpar = parat + PI;
if (otherpar > 2*PI) otherpar -= 2*PI;
if (DsgPrs_InDomain(fpara,lpara,otherpar)) {
parat = otherpar;
otherside = Standard_True;
}
else {
Standard_Real ecartpar = Min(Abs(fpara-parat),
Abs(lpara-parat));
Standard_Real ecartoth = Min(Abs(fpara-otherpar),
Abs(lpara-otherpar));
if (ecartpar <= ecartoth) {
if (parat < fpara) {
parat = fpara;
}
else {
parat = lpara;
}
}
else {
otherside = Standard_True;
if (otherpar < fpara) {
parat = fpara;
}
else {
parat = lpara;
}
}
gp_Pnt ptdir = ElCLib::Value(parat,aCircle);
gp_Lin lsup(aCircle.Location(),
gp_Dir(ptdir.XYZ()-aCircle.Location().XYZ()));
Standard_Real parpos = ElCLib::Parameter(lsup,AttachmentPoint);
attpoint = ElCLib::Value(parpos,lsup);
}
}
gp_Pnt ptoncirc = ElCLib::Value(parat,aCircle);
gp_Lin L (aCircle.Location(),gp_Dir(attpoint.XYZ()-aCircle.Location().XYZ()));
gp_Pnt firstpoint = attpoint;
gp_Pnt drawtopoint = ptoncirc;
if (drawFromCenter && !otherside) {
Standard_Real uatt = ElCLib::Parameter(L,attpoint);
Standard_Real uptc = ElCLib::Parameter(L,ptoncirc);
if (Abs(uatt) > Abs(uptc)) {
drawtopoint = aCircle.Location();
}
else {
firstpoint = aCircle.Location();
}
}
Graphic3d_Array1OfVertex V(1,2);
Quantity_Length X,Y,Z;
firstpoint.Coord(X,Y,Z);
V(1).SetCoord(X,Y,Z);
drawtopoint.Coord(X,Y,Z);
V(2).SetCoord(X,Y,Z);
Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V);
gp_Dir arrdir = L.Direction();
if (reverseArrow) {
arrdir.Reverse();
}
// fleche
Prs3d_Arrow::Draw(aPresentation,ptoncirc,arrdir,
LA->Arrow1Aspect()->Angle(),
LA->Arrow1Aspect()->Length());
// texte
Prs3d_Text::Draw(aPresentation,LA->TextAspect(),aText,attpoint);
}
//=======================================================================
//function : DsgPrs_RadiusPresentation::Add
//purpose : SZY 20-february-98
// : adds radius representation according drawFromCenter value
//=======================================================================
void DsgPrs_RadiusPresentation::Add( const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const TCollection_ExtendedString& aText,
const gp_Pnt& AttachmentPoint,
const gp_Pnt& Center,
const gp_Pnt& EndOfArrow,
const DsgPrs_ArrowSide ArrowPrs,
const Standard_Boolean drawFromCenter,
const Standard_Boolean reverseArrow)
{
Handle( Prs3d_LengthAspect ) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup( aPresentation )->SetPrimitivesAspect( LA->LineAspect()->Aspect() );
Graphic3d_Array1OfVertex VertexArray( 1, 2 );
gp_Pnt LineOrigin, LineEnd;
Quantity_Length X,Y,Z;
DsgPrs::ComputeRadiusLine( Center, EndOfArrow, AttachmentPoint, drawFromCenter,
LineOrigin, LineEnd);
//
LineOrigin.Coord( X, Y, Z );
VertexArray(1).SetCoord( X, Y, Z );
LineEnd.Coord( X, Y, Z );
VertexArray(2).SetCoord( X, Y, Z );
Prs3d_Root::CurrentGroup( aPresentation )->Polyline( VertexArray );
// text
Prs3d_Text::Draw( aPresentation, LA->TextAspect(), aText, AttachmentPoint );
gp_Dir ArrowDir = gce_MakeDir( LineOrigin , LineEnd );
if (reverseArrow)
ArrowDir.Reverse();
DsgPrs::ComputeSymbol( aPresentation, LA, Center, EndOfArrow, ArrowDir.Reversed(), ArrowDir,
ArrowPrs, drawFromCenter );
}
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