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/***********************************************************************
FONCTION :
----------
Classe V3d_DirectionalLight :
HISTORIQUE DES MODIFICATIONS :
--------------------------------
00-09-92 : GG ; Creation.
18-06-96 : FMN ; Ajout MyGraphicStructure1 pour sauvegarder snopick
24-12-97 : FMN ; Remplacement de math par MathGra
31-12-97 : CAL ; Suppression de MathGra
21-01-98 : CAL ; Window de Xw et WNT remplacee par Aspect_Window
23-02-98 : FMN ; Remplacement PI par Standard_PI
30-03-98 : ZOV ; PRO6774 (reconstruction of the class hierarchy and suppressing useless methods)
************************************************************************/
/*----------------------------------------------------------------------*/
/*
* Includes
*/
#include <V3d.hxx>
#include <V3d_DirectionalLight.ixx>
#include <Graphic3d_Vector.hxx>
#include <Graphic3d_Vertex.hxx>
#include <Graphic3d_Structure.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Array1OfVertex.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_AspectText3d.hxx>
#include <Visual3d_Light.hxx>
#include <Visual3d_ViewManager.hxx>
#include <Visual3d_ContextPick.hxx>
#include <Visual3d_PickDescriptor.hxx>
#include <Visual3d_HSequenceOfPickPath.hxx>
#include <Visual3d_PickPath.hxx>
#include <Viewer_BadValue.hxx>
#include <gp_Dir.hxx>
#include <gp_Ax1.hxx>
#include <gp_Vec.hxx>
#include <gp_Pnt.hxx>
#include <gp_Trsf.hxx>
#include <TColStd_Array2OfReal.hxx>
#include <Aspect_Window.hxx>
//-Constructors
V3d_DirectionalLight::V3d_DirectionalLight(const Handle(V3d_Viewer)& VM, const
V3d_TypeOfOrientation Direction,const Quantity_NameOfColor Name,const Standard_Boolean Headlight):V3d_PositionLight(VM) {
Quantity_Color C(Name) ;
Graphic3d_Vertex T(0.,0.,0.) ;
Graphic3d_Vertex P ;
Graphic3d_Vector V = V3d::GetProjAxis(Direction) ;
MyType = V3d_DIRECTIONAL ;
MyLight = new Visual3d_Light(C,V, Headlight) ;
// The initial target is chosen at random
MyTarget = T;
// Position is found
P.SetCoord(-V.X(),-V.Y(),-V.Z());
MyDisplayPosition = P;
}
V3d_DirectionalLight::V3d_DirectionalLight(const Handle(V3d_Viewer)& VM,const Standard_Real Xt,const Standard_Real Yt,const Standard_Real Zt,const Standard_Real Xp,const Standard_Real Yp,const Standard_Real Zp,const Quantity_NameOfColor Name,const Standard_Boolean Headlight):V3d_PositionLight(VM) {
Quantity_Color C(Name) ;
Graphic3d_Vertex T(Xt,Yt,Zt) ;
Graphic3d_Vertex P(Xp,Yp,Zp) ;
Graphic3d_Vector V(P,T);
MyType = V3d_DIRECTIONAL ;
V.Normalize();
MyLight = new Visual3d_Light(C,V, Headlight) ;
MyTarget = T;
MyDisplayPosition = P;
}
//-Methods, in order
void V3d_DirectionalLight::SetDirection(const V3d_TypeOfOrientation Direction) {
Graphic3d_Vector V = V3d::GetProjAxis(Direction) ;
MyLight->SetDirection(V) ;
}
void V3d_DirectionalLight::SetDirection(const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz) {
Viewer_BadValue_Raise_if( sqrt( Vx*Vx + Vy*Vy + Vz*Vz ) <= 0.,"V3d_DirectionalLight::SetDirection, null vector" );
Graphic3d_Vector V(Vx,Vy,Vz) ;
V.Normalize() ;
MyLight->SetDirection(V) ;
}
void V3d_DirectionalLight::SetDisplayPosition(const Standard_Real X, const Standard_Real Y, const Standard_Real Z) {
Standard_Real Xt,Yt,Zt;
MyDisplayPosition.SetCoord(X,Y,Z) ;
MyTarget.Coord(Xt,Yt,Zt);
SetDirection(Xt-X,Yt-Y,Zt-Z);
}
void V3d_DirectionalLight::SetPosition(const Standard_Real Xp, const Standard_Real Yp, const Standard_Real Zp) {
SetDisplayPosition (Xp,Yp,Zp);
}
void V3d_DirectionalLight::Position(Standard_Real& Xp, Standard_Real& Yp, Standard_Real& Zp)const {
DisplayPosition (Xp,Yp,Zp) ;
}
void V3d_DirectionalLight::DisplayPosition(Standard_Real& Xp, Standard_Real& Yp, Standard_Real& Zp)const {
MyDisplayPosition.Coord(Xp,Yp,Zp) ;
}
void V3d_DirectionalLight::Symbol (const Handle(Graphic3d_Group)& gsymbol, const Handle(V3d_View)& aView) const {
Standard_Real Xi,Yi,Zi,Xf,Yf,Zf,Rayon,PXT,PYT,X,Y,Z,XT,YT,ZT;
Standard_Real A,B,C,Dist,Beta,CosBeta,SinBeta,Coef,X1,Y1,Z1;
Standard_Real DX,DY,DZ,VX,VY,VZ;
Standard_Integer IXP,IYP,j;
TColStd_Array2OfReal MatRot(0,2,0,2);
Graphic3d_Array1OfVertex Line(0,1);
aView->Proj(VX,VY,VZ);
this->DisplayPosition(Xi,Yi,Zi);
Rayon = this->Radius();
aView->Project(Xi,Yi,Zi,PXT,PYT);
aView->Convert(PXT,PYT,IXP,IYP);
// Coordinated 3d in the plane of projection of the source.
aView->Convert(IXP,IYP,XT,YT,ZT);
aView->Convert(PXT,PYT+Rayon,IXP,IYP);
aView->Convert(IXP,IYP,X,Y,Z);
X = X+Xi-XT; Y = Y+Yi-YT; Z = Z+Zi-ZT;
Dist = Sqrt( Square(X-Xi) + Square(Y-Yi) + Square(Z-Zi) );
// Axis of rotation.
A = (X-Xi)/Dist;
B = (Y-Yi)/Dist;
C = (Z-Zi)/Dist;
// A sphere is drawn
V3d::CircleInPlane(gsymbol,Xi,Yi,Zi,VX,VY,VZ,Rayon/40.);
for( j=1 ; j<=3 ; j++ ) {
Beta = j * Standard_PI/4.;
CosBeta = Cos(Beta);
SinBeta = Sin(Beta);
Coef = 1. - CosBeta;
MatRot(0,0) = A * A + (1. - A * A) * CosBeta;
MatRot(0,1) = -C * SinBeta + Coef * A * B;
MatRot(0,2) = B * SinBeta + Coef * A * C;
MatRot(1,0) = C * SinBeta + Coef * A * B;
MatRot(1,1) = B * B + (1. - B * B) * CosBeta;
MatRot(1,2) = -A * SinBeta + Coef * B * C;
MatRot(2,0) = -B * SinBeta + Coef * A * C;
MatRot(2,1) = A * SinBeta + Coef * B * C;
MatRot(2,2) = C * C + (1. - C * C) * CosBeta;
Xf = Xi * MatRot(0,0) + Yi * MatRot(0,1) + Zi * MatRot(0,2);
Yf = Xi * MatRot(1,0) + Yi * MatRot(1,1) + Zi * MatRot(1,2);
Zf = Xi * MatRot(2,0) + Yi * MatRot(2,1) + Zi * MatRot(2,2);
// Rotation of the normal
X1 = VX * MatRot(0,0) + VY * MatRot(0,1) + VZ * MatRot(0,2);
Y1 = VX * MatRot(1,0) + VY * MatRot(1,1) + VZ * MatRot(1,2);
Z1 = VX * MatRot(2,0) + VY * MatRot(2,1) + VZ * MatRot(2,2);
VX = X1 + Xi - Xf ; VY = Y1 + Yi - Yf ; VZ = Z1 + Zi - Zf;
V3d::CircleInPlane(gsymbol,Xi,Yi,Zi,VX,VY,VZ,Rayon/40.);
}
// The arrow is drawn
Rayon = this->Radius();
this->Direction(DX,DY,DZ);
X = Xi + DX*Rayon/10.; Y = Yi + DY*Rayon/10.; Z = Zi + DZ*Rayon/10.;
Line(0).SetCoord(Xi,Yi,Zi);
Line(1).SetCoord(X,Y,Z);
gsymbol->Polyline(Line);
V3d::ArrowOfRadius(gsymbol,X,Y,Z,DX,DY,DZ,Standard_PI/15.,Rayon/20.);
}
void V3d_DirectionalLight::Display( const Handle(V3d_View)& aView,
const V3d_TypeOfRepresentation TPres) {
Standard_Real X,Y,Z,Rayon;
Standard_Real X0,Y0,Z0,VX,VY,VZ;
Standard_Real X1,Y1,Z1;
Standard_Real DXRef,DYRef,DZRef,DXini,DYini,DZini;
Standard_Real R1,G1,B1;
V3d_TypeOfRepresentation Pres;
V3d_TypeOfUpdate UpdSov;
// Creation of a structure of markable elements (position of the
// light, and the domain of lighting represented by a circle)
// Creation of a structure of non-markable elements (target, meridian and
// parallel).
Pres = TPres;
Handle(V3d_Viewer) TheViewer = aView->Viewer();
UpdSov = TheViewer->UpdateMode();
TheViewer->SetUpdateMode(V3d_WAIT);
if (!MyGraphicStructure.IsNull()) {
MyGraphicStructure->Disconnect(MyGraphicStructure1);
MyGraphicStructure->Clear();
MyGraphicStructure1->Clear();
if (Pres == V3d_SAMELAST) Pres = MyTypeOfRepresentation;
}
else {
if (Pres == V3d_SAMELAST) Pres = V3d_SIMPLE;
Handle(Graphic3d_Structure) slight = new Graphic3d_Structure(TheViewer->Viewer());
MyGraphicStructure = slight;
Handle(Graphic3d_Structure) snopick = new Graphic3d_Structure(TheViewer->Viewer());
MyGraphicStructure1 = snopick;
}
Handle(Graphic3d_Group) glight = new Graphic3d_Group(MyGraphicStructure);
Handle(Graphic3d_Group) gsphere;
if (Pres == V3d_COMPLETE || Pres == V3d_PARTIAL) gsphere = new Graphic3d_Group(MyGraphicStructure);
Handle(Graphic3d_Group) gnopick = new Graphic3d_Group(MyGraphicStructure1);
MyGraphicStructure1->SetPick(Standard_False);
X0 = MyTarget.X();
Y0 = MyTarget.Y();
Z0 = MyTarget.Z();
//Display of the position of the light.
glight->SetPickId(1);
this->Color(Quantity_TOC_RGB,R1,G1,B1);
Quantity_Color Col1(R1,G1,B1,Quantity_TOC_RGB);
Handle(Graphic3d_AspectLine3d) Asp1 = new Graphic3d_AspectLine3d();
Asp1->SetColor(Col1);
glight->SetPrimitivesAspect(Asp1);
this->Symbol(glight,aView);
// Display of the markable sphere (limit at the circle).
if (Pres == V3d_COMPLETE || Pres == V3d_PARTIAL) {
Rayon = this->Radius();
aView->Proj(VX,VY,VZ);
gsphere->SetPickId(2);
V3d::CircleInPlane(gsphere,X0,Y0,Z0,VX,VY,VZ,Rayon);
//Display of the meridian
Quantity_Color Col2(Quantity_NOC_GREEN);
Handle(Graphic3d_AspectLine3d) Asp2 = new Graphic3d_AspectLine3d
(Col2,Aspect_TOL_SOLID,1.);
gnopick->SetPrimitivesAspect(Asp2);
// Definition of the axis of circle
aView->Up(DXRef,DYRef,DZRef);
this->DisplayPosition(X,Y,Z);
DXini = X-X0; DYini = Y-Y0; DZini = Z-Z0;
VX = DYRef*DZini - DZRef*DYini;
VY = DZRef*DXini - DXRef*DZini;
VZ = DXRef*DYini - DYRef*DXini;
V3d::CircleInPlane(gnopick,X0,Y0,Z0,VX,VY,VZ,Rayon);
// Display of the parallel
// Definition of the axis of circle
aView->Proj(VX,VY,VZ);
aView->Up(X1,Y1,Z1);
DXRef = VY * Z1 - VZ * Y1;
DYRef = VZ * X1 - VX * Z1;
DZRef = VX * Y1 - VY * X1;
this->DisplayPosition(X,Y,Z);
DXini = X-X0; DYini = Y-Y0; DZini = Z-Z0;
VX = DYRef*DZini - DZRef*DYini;
VY = DZRef*DXini - DXRef*DZini;
VZ = DXRef*DYini - DYRef*DXini;
V3d::CircleInPlane(gnopick,X0,Y0,Z0,VX,VY,VZ,Rayon);
}
MyGraphicStructure->Connect(MyGraphicStructure1,Graphic3d_TOC_DESCENDANT);
// cout << "MyGraphicStructure exploration \n" << flush; MyGraphicStructure->Exploration();
MyTypeOfRepresentation = Pres;
MyGraphicStructure->Display();
TheViewer->SetUpdateMode(UpdSov);
}
void V3d_DirectionalLight::Direction(Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz)const {
Quantity_Color C ;
Graphic3d_Vector V ;
MyLight->Values(C,V) ;
V.Coord(Vx,Vy,Vz) ;
}
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