+// Copyright (c) 1999-2014 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
/***********************************************************************
-
V3d_PositionLight.cxx
Created: 30-03-98 ZOV (ZELENKOV Oleg)
-
************************************************************************/
-#include <V3d.hxx>
-#include <V3d_PositionLight.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 <V3d_SpotLight.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_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_Trsf.hxx>
+#include <gp_Vec.hxx>
+#include <Graphic3d_ArrayOfSegments.hxx>
+#include <Graphic3d_AspectLine3d.hxx>
+#include <Graphic3d_AspectMarker3d.hxx>
+#include <Graphic3d_AspectText3d.hxx>
+#include <Graphic3d_Group.hxx>
+#include <Graphic3d_Structure.hxx>
+#include <Graphic3d_Vector.hxx>
+#include <Graphic3d_Vertex.hxx>
+#include <Standard_Type.hxx>
#include <TCollection_AsciiString.hxx>
-#ifdef WNT
-# include <WNT_Window.hxx>
-#else
-# include <Xw_Window.hxx>
-#endif
-
-V3d_PositionLight::V3d_PositionLight(const Handle(V3d_Viewer)& VM) : V3d_Light(VM) {
+#include <V3d.hxx>
+#include <V3d_BadValue.hxx>
+#include <V3d_PositionLight.hxx>
+#include <V3d_SpotLight.hxx>
+#include <V3d_View.hxx>
+#include <V3d_Viewer.hxx>
+
+IMPLEMENT_STANDARD_RTTIEXT(V3d_PositionLight,V3d_Light)
+
+// =======================================================================
+// function : V3d_PositionLight
+// purpose :
+// =======================================================================
+V3d_PositionLight::V3d_PositionLight (const Handle(V3d_Viewer)& theViewer)
+: V3d_Light(theViewer)
+{
}
-void V3d_PositionLight::SetTarget(const Standard_Real X, const Standard_Real Y, const Standard_Real Z) {
-
+// =======================================================================
+// function : SetTarget
+// purpose :
+// =======================================================================
+void V3d_PositionLight::SetTarget (const Standard_Real theX, const Standard_Real theY, const Standard_Real theZ)
+{
Standard_Real Xc,Yc,Zc, Xp,Yp,Zp;
- // Recalcul de la position
- MyTarget.Coord(Xc,Yc,Zc);
+ // Recalculation of the position
+ myTarget.Coord(Xc,Yc,Zc);
Position (Xp,Yp,Zp) ;
- Xp = Xp + (X - Xc);
- Yp = Yp + (Y - Yc);
- Zp = Zp + (Z - Zc);
+ Xp = Xp + (theX - Xc);
+ Yp = Yp + (theY - Yc);
+ Zp = Zp + (theZ - Zc);
// Affectation
- MyTarget.SetCoord(X,Y,Z);
+ myTarget.SetCoord(theX,theY,theZ);
SetPosition(Xp,Yp,Zp) ;
}
-void V3d_PositionLight::SetRadius(const Standard_Real Radius) {
-
- Viewer_BadValue_Raise_if( Radius <= 0. , "V3d_PositionLight::SetRadius, bad radius");
- Viewer_BadValue_Raise_if( MyType == V3d_DIRECTIONAL , "V3d_PositionLight::SetRadius, bad light type");
+// =======================================================================
+// function : SetRadius
+// purpose :
+// =======================================================================
+void V3d_PositionLight::SetRadius (const Standard_Real theRadius)
+{
+ V3d_BadValue_Raise_if( theRadius <= 0. , "V3d_PositionLight::SetRadius, bad radius");
+ V3d_BadValue_Raise_if( Type() == V3d_DIRECTIONAL , "V3d_PositionLight::SetRadius, bad light type");
Standard_Real X0,Y0,Z0, Xn,Yn,Zn, Xp,Yp,Zp;
- // Le point cible reste inchange, seul la position de la lumiere est modifiee
- // en conservant la direction.
+ // The target point remains unchanged, only the position of the light is modified
+ // by preserving the direction.
Position (Xp,Yp,Zp);
- Graphic3d_Vector D(MyTarget, Graphic3d_Vertex(Xp, Yp, Zp));
+ Graphic3d_Vector D(myTarget, Graphic3d_Vertex(Xp, Yp, Zp));
D.Normalize();
D.Coord(Xn,Yn,Zn);
- MyTarget.Coord(X0,Y0,Z0);
- Xn = X0 + Radius*Xn;
- Yn = Y0 + Radius*Yn;
- Zn = Z0 + Radius*Zn;
+ myTarget.Coord(X0,Y0,Z0);
+ Xn = X0 + theRadius*Xn;
+ Yn = Y0 + theRadius*Yn;
+ Zn = Z0 + theRadius*Zn;
SetPosition(Xn,Yn,Zn) ;
}
-void V3d_PositionLight::OnHideFace(const Handle(V3d_View)& aView) {
-
+// =======================================================================
+// function : OnHideFace
+// purpose :
+// =======================================================================
+void V3d_PositionLight::OnHideFace (const Handle(V3d_View)& theView)
+{
Standard_Real Xp,Yp,Zp, X,Y,Z, VX,VY,VZ;
Position (Xp,Yp,Zp);
- V3d_Light::SymetricPointOnSphere (aView,
- MyTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
+ V3d_Light::SymetricPointOnSphere (theView,
+ myTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
- // Actuellement est on sur le point vu
+ // This is a visible point
if ((VX*(X-Xp) < 0.) && (VY*(Y-Yp) < 0.) && (VZ*(Z-Zp) < 0.))
SetPosition (X,Y,Z);
}
-void V3d_PositionLight::OnSeeFace(const Handle(V3d_View)& aView) {
-
+// =======================================================================
+// function : OnSeeFace
+// purpose :
+// =======================================================================
+void V3d_PositionLight::OnSeeFace (const Handle(V3d_View)& theView)
+{
Standard_Real Xp,Yp,Zp, X,Y,Z, VX,VY,VZ;
Position (Xp,Yp,Zp);
- V3d_Light::SymetricPointOnSphere (aView,
- MyTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
+ V3d_Light::SymetricPointOnSphere (theView,
+ myTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
- // Actuellement est on sur le point cache
+ // This is a hidden point
if ((VX*(X-Xp) > 0.) && (VY*(Y-Yp) > 0.) && (VZ*(Z-Zp) > 0.))
SetPosition (X,Y,Z);
}
-Standard_Boolean V3d_PositionLight::SeeOrHide(const Handle(V3d_View)& aView) const {
-
+// =======================================================================
+// function : SeeOrHide
+// purpose :
+// =======================================================================
+Standard_Boolean V3d_PositionLight::SeeOrHide (const Handle(V3d_View)& theView) const
+{
Standard_Real Xp,Yp,Zp, X,Y,Z, VX,VY,VZ;
Position (Xp,Yp,Zp);
- V3d_Light::SymetricPointOnSphere (aView,
- MyTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
+ V3d_Light::SymetricPointOnSphere (theView,
+ myTarget, Graphic3d_Vertex(Xp,Yp,Yp), Radius(), X,Y,Z, VX,VY,VZ);
- // Avons nous le point cache ou le point vu
+ // Is it a visible or a hidden point
return ( (VX*(X-Xp) > 0.) || (VY*(Y-Yp) > 0.) || (VZ*(Z-Zp) > 0.) )?
- // la source est sur la face cachee
+ // the source is on the hidden face
Standard_False:
- // la source est sur la face vue.
+ // the source is on the visible face.
Standard_True;
}
-void V3d_PositionLight::Target(Standard_Real& Xp, Standard_Real& Yp, Standard_Real& Zp)const {
-
- MyTarget.Coord(Xp,Yp,Zp) ;
+// =======================================================================
+// function : Target
+// purpose :
+// =======================================================================
+void V3d_PositionLight::Target (Standard_Real& theXp, Standard_Real& theYp, Standard_Real& theZp) const
+{
+ myTarget.Coord (theXp, theYp, theZp);
}
-void V3d_PositionLight::Display( const Handle(V3d_View)& aView,
- const V3d_TypeOfRepresentation TPres ) {
-
- Graphic3d_Array1OfVertex PRadius(0,1);
+// =======================================================================
+// function : Display
+// purpose :
+// =======================================================================
+void V3d_PositionLight::Display (const Handle(V3d_View)& theView, const V3d_TypeOfRepresentation theTPres)
+{
Graphic3d_Vertex PText ;
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 d'une structure slight d'elements reperables (la position de
-// la light, et le domaine d'eclairage represente par un cercle)
-// Creation d'une structure snopick d'elements non reperables ( cible, meridien et
-// parallele ).
-
- 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) gradius;
- Handle(Graphic3d_Group) gExtArrow;
- Handle(Graphic3d_Group) gIntArrow;
-
- if (MyType != V3d_DIRECTIONAL) {
- if (Pres == V3d_COMPLETE) {
- gradius = new Graphic3d_Group(MyGraphicStructure);
- gExtArrow = new Graphic3d_Group(MyGraphicStructure);
- gIntArrow = new Graphic3d_Group(MyGraphicStructure);
- }
- }
- Handle(Graphic3d_Group) glight = new Graphic3d_Group(MyGraphicStructure);
+// Creation of a structure of markable elements (position of the
+// light, and the domain of lighting represented by a circle)
+// Creation of a structure snopick of non-markable elements (target, meridian and
+// parallel).
+
+ Pres = theTPres;
+ Handle(V3d_Viewer) TheViewer = theView->Viewer();
+ 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->StructureManager());
+ myGraphicStructure = slight;
+ Handle(Graphic3d_Structure) snopick = new Graphic3d_Structure(TheViewer->StructureManager());
+ myGraphicStructure1 = snopick;
+ }
+
+ Handle(Graphic3d_Group) gradius, gExtArrow, gIntArrow;
+ if (Type() != V3d_DIRECTIONAL
+ && Pres == V3d_COMPLETE)
+ {
+ gradius = myGraphicStructure->NewGroup();
+ gExtArrow = myGraphicStructure->NewGroup();
+ gIntArrow = myGraphicStructure->NewGroup();
+ }
+ Handle(Graphic3d_Group) glight = myGraphicStructure->NewGroup();
Handle(Graphic3d_Group) gsphere;
- if (Pres == V3d_COMPLETE || Pres == V3d_PARTIAL) gsphere = new Graphic3d_Group(MyGraphicStructure);
+ if (Pres == V3d_COMPLETE
+ || Pres == V3d_PARTIAL)
+ {
+ gsphere = myGraphicStructure->NewGroup();
+ }
- Handle(Graphic3d_Group) gnopick = new Graphic3d_Group(MyGraphicStructure1);
- MyGraphicStructure1->SetPick(Standard_False);
+ Handle(Graphic3d_Group) gnopick = myGraphicStructure1->NewGroup();
- X0 = MyTarget.X();
- Y0 = MyTarget.Y();
- Z0 = MyTarget.Z();
+ X0 = myTarget.X();
+ Y0 = myTarget.Y();
+ Z0 = myTarget.Z();
-//Affichage de la position de la light.
+// Display of the light position.
- glight->SetPickId(1);
- this->Color(Quantity_TOC_RGB,R1,G1,B1);
- Quantity_Color Col1(R1,G1,B1,Quantity_TOC_RGB);
+ const Quantity_Color Col1 = this->Color();
Handle(Graphic3d_AspectLine3d) Asp1 = new Graphic3d_AspectLine3d();
Asp1->SetColor(Col1);
glight->SetPrimitivesAspect(Asp1);
- this->Symbol(glight,aView);
+ this->Symbol(glight,theView);
-//Affichage de la sphere de reperage (limite au cercle).
+// Display of the marking sphere (limit at the circle).
if (Pres == V3d_COMPLETE || Pres == V3d_PARTIAL) {
Rayon = this->Radius();
- aView->Proj(VX,VY,VZ);
- gsphere->SetPickId(2);
+ theView->Proj(VX,VY,VZ);
V3d::CircleInPlane(gsphere,X0,Y0,Z0,VX,VY,VZ,Rayon);
+ if (Type() != V3d_DIRECTIONAL) {
+
+ //Display of the radius of the sphere (line + text)
+
+ if (Pres == V3d_COMPLETE) {
+ this->Position(X,Y,Z);
+ Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
+ aPrims->AddVertex(X0,Y0,Z0);
+ aPrims->AddVertex(X,Y,Z);
+ gnopick->AddPrimitiveArray(aPrims);
+ V3d::ArrowOfRadius(gExtArrow,X-.1*(X-X0),Y-.1*(Y-Y0),Z-.1*(Z-Z0),X-X0,Y-Y0,Z-Z0,M_PI/15.,Rayon/20.);
+ V3d::ArrowOfRadius(gIntArrow,X0,Y0,Z0,X0-X,Y0-Y,Z0-Z,M_PI/15.,Rayon/20.);
+ TCollection_AsciiString ValOfRadius(Rayon);
+ PText.SetCoord( .5*(X0+X), .5*(Y0+Y), .5*(Z0+Z) );
+ gradius->Text(ValOfRadius.ToCString(),PText,0.01);
+ }
+ }
- if (MyType != V3d_DIRECTIONAL) {
-
- //Affichage du rayon de la sphere (ligne + texte)
-
- if (Pres == V3d_COMPLETE) {
- gradius->SetPickId(3);
- gExtArrow->SetPickId(4);
- gIntArrow->SetPickId(5);
- PRadius(0).SetCoord(X0,Y0,Z0);
- this->Position(X,Y,Z);
- PRadius(1).SetCoord(X,Y,Z);
- gnopick->Polyline(PRadius);
- V3d::ArrowOfRadius(gExtArrow,X-(X-X0)/10.,
- Y-(Y-Y0)/10.,
- Z-(Z-Z0)/10.,X-X0,Y-Y0,Z-Z0,PI/15.,Rayon/20.);
- V3d::ArrowOfRadius(gIntArrow,X0,Y0,Z0,X0-X,Y0-Y,Z0-Z,PI/15.,Rayon/20.);
- TCollection_AsciiString ValOfRadius(Rayon);
- PText.SetCoord( (X0+X)/2., (Y0+Y)/2. , (Z0+Z)/2. );
- gradius->Text(ValOfRadius.ToCString(),PText,0.01);
- }
- }
-
-
- //Affichage du meridien
+ // Display of the meridian
Quantity_Color Col2(Quantity_NOC_GREEN);
- Handle(Graphic3d_AspectLine3d) Asp2 = new Graphic3d_AspectLine3d
- (Col2,Aspect_TOL_SOLID,1.);
+ Handle(Graphic3d_AspectLine3d) Asp2 = new Graphic3d_AspectLine3d(Col2,Aspect_TOL_SOLID,1.);
gnopick->SetPrimitivesAspect(Asp2);
- // Definition de l'axe du cercle
- aView->Up(DXRef,DYRef,DZRef);
+ // Definition of the axis of circle
+ theView->Up(DXRef,DYRef,DZRef);
this->Position(X,Y,Z);
DXini = X-X0; DYini = Y-Y0; DZini = Z-Z0;
VX = DYRef*DZini - DZRef*DYini;
V3d::CircleInPlane(gnopick,X0,Y0,Z0,VX,VY,VZ,Rayon);
- // Affichage de la parallele
+ // Display of the parallel
- // Definition de l'axe du cercle
- aView->Proj(VX,VY,VZ);
- aView->Up(X1,Y1,Z1);
+ // Definition of the axis of circle
+ theView->Proj(VX,VY,VZ);
+ theView->Up(X1,Y1,Z1);
DXRef = VY * Z1 - VZ * Y1;
DYRef = VZ * X1 - VX * Z1;
DZRef = VX * Y1 - VY * X1;
V3d::CircleInPlane(gnopick,X0,Y0,Z0,VX,VY,VZ,Rayon);
}
- MyGraphicStructure->Connect(MyGraphicStructure1,Graphic3d_TOC_DESCENDANT);
- MyTypeOfRepresentation = Pres;
- MyGraphicStructure->Display();
- TheViewer->SetUpdateMode(UpdSov);
-}
-
-V3d_TypeOfPickLight V3d_PositionLight::Pick(const Handle(V3d_View)& aView,
- const Standard_Integer Xpix,
- const Standard_Integer Ypix)
-const {
-
- Standard_Integer i, Lng, Id;
- Standard_Boolean kcont;
- V3d_TypeOfPickLight TPick;
-
- Handle(Visual3d_ViewManager) VM = (aView->Viewer())->Viewer();
-#ifdef WNT
- Handle( WNT_Window ) WW = Handle( WNT_Window ) :: DownCast ( aView -> Window () );
-#else
- Handle( Xw_Window ) WW = Handle( Xw_Window ) :: DownCast ( aView -> Window () );
-#endif
- Visual3d_ContextPick CTXP;
- Visual3d_PickDescriptor Pdes = VM->Pick(CTXP,WW,Xpix,Ypix);
- Visual3d_PickPath OnePPath;
- Handle(Visual3d_HSequenceOfPickPath) PPath = Pdes.PickPath();
- Lng = PPath->Length();
- kcont = Standard_True;
- TPick = V3d_NOTHING;
- for (i=1; i<=Lng && kcont; i++) {
- OnePPath = PPath->Value(i);
- Id = OnePPath.PickIdentifier();
- if (MyGraphicStructure == OnePPath.StructIdentifier()){
- switch (Id) {
- case 1 :
- TPick = V3d_POSITIONLIGHT;
- break;
- case 2 :
- TPick = V3d_SPACELIGHT;
- break;
- case 3 :
- if (MyType != V3d_DIRECTIONAL)
- TPick = V3d_RADIUSTEXTLIGHT;
- break;
- case 4 :
- if (MyType != V3d_DIRECTIONAL)
- TPick = V3d_ExtRADIUSLIGHT;
- break;
- case 5 :
- if (MyType != V3d_DIRECTIONAL)
- TPick = V3d_IntRADIUSLIGHT;
- break;
- }
- kcont = Standard_False;
- }
- }
- return TPick;
+ myGraphicStructure->Connect(myGraphicStructure1,Graphic3d_TOC_DESCENDANT);
+ myTypeOfRepresentation = Pres;
+ myGraphicStructure->Display();
}
-void V3d_PositionLight::Tracking( const Handle(V3d_View)& aView,
- const V3d_TypeOfPickLight WhatPick,
- const Standard_Integer Xpix,
- const Standard_Integer Ypix) {
-
+// =======================================================================
+// function : Display
+// purpose :
+// =======================================================================
+void V3d_PositionLight::Tracking (const Handle(V3d_View)& theView,
+ const V3d_TypeOfPickLight theWhatPick,
+ const Standard_Integer theXpix,
+ const Standard_Integer theYpix)
+{
// Quantity_Color Col ;
Standard_Real xPos, yPos, zPos;
Standard_Real XPp,YPp,PXT,PYT,X,Y,Z,Rayon,Ylim;
Standard_Real Xi,Yi,Zi,DeltaX,DeltaY,DeltaZ,Lambda;
Standard_Integer IPX,IPY;
- aView->Convert(Xpix,Ypix,XPp,YPp);
- X0 = MyTarget.X();
- Y0 = MyTarget.Y();
- Z0 = MyTarget.Z();
- aView->Project(X0,Y0,Z0,PXT,PYT);
- aView->Convert(PXT,PYT,IPX,IPY);
-// Coord 3d dans le plan de projection de la cible.
- aView->Convert(IPX,IPY,XT,YT,ZT);
- switch (WhatPick) {
+ theView->Convert(theXpix,theYpix,XPp,YPp);
+ X0 = myTarget.X();
+ Y0 = myTarget.Y();
+ Z0 = myTarget.Z();
+ theView->Project(X0,Y0,Z0,PXT,PYT);
+ theView->Convert(PXT,PYT,IPX,IPY);
+// Coord 3d in the plane of projection of the target.
+ theView->Convert(IPX,IPY,XT,YT,ZT);
+ switch (theWhatPick) {
case V3d_POSITIONLIGHT :
- // Les Coordonnees doivent rester a l'interieur de la sphere
+ // The Coordinates should remain inside of the sphere
Rayon = Radius();
XMinTrack = PXT - Rayon;
XMaxTrack = PXT + Rayon;
YMaxTrack = PYT + Ylim;
if (XPp >= XMinTrack && XPp <= XMaxTrack) {
if (YPp >= YMinTrack && YPp <= YMaxTrack) {
- aView->ProjReferenceAxe(Xpix,Ypix,XP,YP,ZP,VX,VY,VZ);
+ theView->ProjReferenceAxe(theXpix,theYpix,XP,YP,ZP,VX,VY,VZ);
DeltaX = X0 - XP;
DeltaY = Y0 - YP;
DeltaZ = Z0 - ZP;
-// On recherche le point d'intersection des droites definies
-// par :
-// - Droite passant par le point de projection et l'oeil
-// si on est en perspective, parralele a la normale de la
-// vue si on a une vue axonometrique.
-// position dans la vue est // a la normale de la vue
-// - La distance position de la camera cible est egale au
-// rayon.
+// The point of intersection of straight lines defined by :
+// - Straight line passing by the point of projection and the eye
+// if this is a perspective, parralel to the normal of the view
+// if this is an axonometric view.
+// position in the view is parallel to the normal of the view
+// - The distance position of the target camera is equal to the radius.
A = VX*VX + VY*VY + VZ*VZ ;
B = -2. * (VX*DeltaX + VY*DeltaY + VZ*DeltaZ);
Z = ZP + Lambda*VZ;
SetPosition(X,Y,Z);
- if (MyType == V3d_SPOT)
+ if (Type() == V3d_SPOT)
((V3d_SpotLight*)this)->SetDirection(X0-X,Y0-Y,Z0-Z);
- Display(aView,MyTypeOfRepresentation);
- (aView->Viewer())->UpdateLights();
+ Display(theView,myTypeOfRepresentation);
+ (theView->Viewer())->UpdateLights();
}
}
}
break;
case V3d_SPACELIGHT :
- aView->Convert(PXT,PYT,IPX,IPY);
-// Dans ce cas Xpix,Ypix correspondent a une distance , relative
-// a la translation que l'on veut effectuer sur la sphere.
- aView->Convert(IPX+Xpix,IPY+Ypix,X,Y,Z);
+ theView->Convert(PXT,PYT,IPX,IPY);
+// In this case Xpix,Ypix correspond to a distance, relative
+// to the translation that is planned to be performed on the sphere.
+ theView->Convert(IPX+theXpix,IPY+theYpix,X,Y,Z);
X = X+X0-XT;
Y = Y+Y0-YT;
Z = Z+Z0-ZT;
SetTarget(X,Y,Z);
- Display(aView,MyTypeOfRepresentation);
- (aView->Viewer())->UpdateLights();
+ Display(theView,myTypeOfRepresentation);
+ (theView->Viewer())->UpdateLights();
break;
case V3d_ExtRADIUSLIGHT :
- if (MyType == V3d_DIRECTIONAL)
+ if (Type() == V3d_DIRECTIONAL)
break;
-// on cherche a conserver la direction cible positionnement de la
-// source ==> on projette le point sur la direction cible source.
+// it is attempted to preserve the target direction position of the
+// source ==> the point is projected on the target source direction.
this->Position(Xi,Yi,Zi);
- aView->Project(Xi,Yi,Zi,PXP,PYP);
+ theView->Project(Xi,Yi,Zi,PXP,PYP);
DX = PXP - PXT;
DY = PYP - PYT;
A1 = DY/DX ; B1 = PYT - A1*PXT;
Rayon = Radius();
Rayon = Rayon * Rap;
SetRadius(Rayon);
- Display(aView,MyTypeOfRepresentation);
- (aView->Viewer())->UpdateLights();
+ Display(theView,myTypeOfRepresentation);
+ (theView->Viewer())->UpdateLights();
}
break;
case V3d_IntRADIUSLIGHT :
- if (MyType == V3d_DIRECTIONAL)
+ if (Type() == V3d_DIRECTIONAL)
break;
-// on cherche a conserver la direction cible positionnement
-// de la source ==> on projette le point sur la direction
-// cible source.
+// it is attempted to preserve the target direction position of the
+// source ==> the point is projected on the target source direction.
Position(Xi,Yi,Zi);
- aView->Project(Xi,Yi,Zi,PXP,PYP);
+ theView->Project(Xi,Yi,Zi,PXP,PYP);
DX = PXP - PXT;
DY = PYP - PYT;
A1 = DY/DX ; B1 = PYT - A1*PXT;
Rap = NewRprj/OldRprj;
Rayon = Radius();
Rayon = Rayon * Rap;
-// la source doit rester a une position fixe, seule la cible
-// est modifie.
+// the source should remain at a fixed position,
+// only the target is modified.
Position (xPos, yPos, zPos);
- Graphic3d_Vector Dir(Graphic3d_Vertex(xPos,yPos,zPos), MyTarget);
+ Graphic3d_Vector Dir(Graphic3d_Vertex(xPos,yPos,zPos), myTarget);
Dir.Normalize();
Dir.Coord(X,Y,Z);
X = Xi + Rayon*X;
Y = Yi + Rayon*Y;
Z = Zi + Rayon*Z;
-// la source doit rester a une position fixe, seule la cible
-// est modifie.
- MyTarget.SetCoord(X,Y,Z);
- Display(aView,MyTypeOfRepresentation);
- (aView->Viewer())->UpdateLights();
+// the source should remain at a fixed position,
+// only the target is modified.
+ myTarget.SetCoord(X,Y,Z);
+ Display(theView,myTypeOfRepresentation);
+ (theView->Viewer())->UpdateLights();
}
break;
}
}
-Standard_Real V3d_PositionLight::Radius() const {
-
+// =======================================================================
+// function : Radius
+// purpose :
+// =======================================================================
+Standard_Real V3d_PositionLight::Radius() const
+{
Standard_Real Xp,Yp,Zp, Xc,Yc,Zc;
Position (Xp,Yp,Zp);
- MyTarget.Coord(Xc,Yc,Zc);
+ myTarget.Coord(Xc,Yc,Zc);
return Sqrt (Square(Xc - Xp) + Square(Yc - Yp) + Square(Zc - Zp));
}
-void V3d_PositionLight::Erase() {
-
- if (!MyGraphicStructure.IsNull()) MyGraphicStructure->Erase();
- if (!MyGraphicStructure1.IsNull()) MyGraphicStructure1->Erase();
+// =======================================================================
+// function : Radius
+// purpose :
+// =======================================================================
+void V3d_PositionLight::Erase()
+{
+ if (!myGraphicStructure.IsNull()) myGraphicStructure->Erase();
+ if (!myGraphicStructure1.IsNull()) myGraphicStructure1->Erase();
}
projects / occt.git / blobdiff