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// File: PrsMgr_Presentation3d.cxx
// Created: Thu Oct 21 13:11:19 1993
// Author: Jean-Louis FRENKEL
// Modified by rob 09-oct-96
// <jlf@stylox>
#define IMP040200 //GG Recompute HLR after transformation
// in all the case.
#include <PrsMgr_Presentation3d.ixx>
#include <PrsMgr_PresentationManager.hxx>
#include <PrsMgr_Prs.hxx>
#include <Visual3d_View.hxx>
#include <Visual3d_ViewOrientation.hxx>
#include <Graphic3d_Structure.hxx>
#include <Precision.hxx>
PrsMgr_Presentation3d::PrsMgr_Presentation3d (const Handle(PrsMgr_PresentationManager3d)& aPresentationManager,
const Handle(PrsMgr_PresentableObject)& aPresentableObject)
: PrsMgr_Presentation(aPresentationManager),
myDisplayReason(Standard_False),
myPresentableObject (aPresentableObject.operator->())
{
myStructure = new PrsMgr_Prs(aPresentationManager->StructureManager(),
this, aPresentableObject->TypeOfPresentation3d());
myStructure->SetOwner(myPresentableObject);
}
PrsMgr_KindOfPrs PrsMgr_Presentation3d::KindOfPresentation() const
{return PrsMgr_KOP_3D;}
void PrsMgr_Presentation3d::Display () {
myStructure->Display();
myDisplayReason = Standard_False;
}
void PrsMgr_Presentation3d::Erase () const {
myStructure->Erase();}
void PrsMgr_Presentation3d::Highlight () {
if(!myStructure->IsDisplayed()) {
myStructure->Display();
myDisplayReason = Standard_True;
}
myStructure->Highlight();}
void PrsMgr_Presentation3d::Unhighlight () const {
myStructure->UnHighlight();
if(myDisplayReason) myStructure->Erase();
}
void PrsMgr_Presentation3d::Clear() {
// This modification remove the contain of the structure:
// Consequence:
// 1. The memory zone of the group is reused
// 2. The speed for animation is constant
//myPresentableObject = NULL;
SetUpdateStatus(Standard_True);
myStructure->Clear(Standard_True);
// myStructure->Clear(Standard_False);
myStructure->RemoveAll();
}
void PrsMgr_Presentation3d::Color(const Quantity_NameOfColor aColor){
Standard_Boolean ImmMode = myPresentationManager->IsImmediateModeOn();
if(!ImmMode){
if(!myStructure->IsDisplayed()) {
myStructure->Display();
myDisplayReason = Standard_True;
}
}
myStructure->Color(aColor);
}
void PrsMgr_Presentation3d::BoundBox() const {
myStructure->BoundBox();
}
Standard_Boolean PrsMgr_Presentation3d::IsDisplayed () const {
return myStructure->IsDisplayed() && !myDisplayReason;
}
Standard_Boolean PrsMgr_Presentation3d::IsHighlighted () const {
return myStructure->IsHighlighted();
}
Standard_Integer PrsMgr_Presentation3d::DisplayPriority() const {
return myStructure->DisplayPriority();
}
void PrsMgr_Presentation3d::SetDisplayPriority(const Standard_Integer TheNewPrior)
{
myStructure->SetDisplayPriority(TheNewPrior);
}
Handle(Prs3d_Presentation) PrsMgr_Presentation3d::Presentation() const {
return myStructure;
}
void PrsMgr_Presentation3d::Connect(const Handle(PrsMgr_Presentation3d)& anOtherPresentation) const {
myStructure->Connect(anOtherPresentation->Presentation());
}
void PrsMgr_Presentation3d::Transform (const Handle(Geom_Transformation)& aTransformation) const {
myStructure->Transform(aTransformation);
}
void PrsMgr_Presentation3d::Place (const Quantity_Length X,
const Quantity_Length Y,
const Quantity_Length Z) const {
myStructure->Place(X,Y,Z);
}
void PrsMgr_Presentation3d::Multiply (const Handle(Geom_Transformation)& aTransformation) const {
myStructure->Multiply(aTransformation);
}
void PrsMgr_Presentation3d::Move (const Quantity_Length X,
const Quantity_Length Y,
const Quantity_Length Z) const {
myStructure->Move(X,Y,Z);
}
void PrsMgr_Presentation3d::SetShadingAspect(const Handle(Prs3d_ShadingAspect)& aShadingAspect) const {
myStructure->SetShadingAspect(aShadingAspect);
}
//=======================================================================
//function : Compute
//purpose : Methods for hidden parts...
//=======================================================================
Handle(Graphic3d_Structure) PrsMgr_Presentation3d::
Compute(const Handle(Graphic3d_DataStructureManager)& aProjector)
{
#ifdef DEB
cout<<"passage in g = Compute(P) "<<endl;
#endif
Handle(Prs3d_Presentation) g = new Prs3d_Presentation(Handle(PrsMgr_PresentationManager3d)::DownCast(PresentationManager())->StructureManager());
myPresentableObject->Compute(Projector(aProjector),g);
return g;
}
//=======================================================================
//function : Compute
//purpose :
//=======================================================================
void PrsMgr_Presentation3d::Compute(const Handle(Graphic3d_DataStructureManager)& aProjector,
const Handle(Graphic3d_Structure)& TheStructToFill)
{
#ifdef DEB
cout<<"passage in Compute(P,Str)"<<endl;
#endif
TheStructToFill->Clear();
const Handle(Prs3d_Presentation)& P = *((Handle(Prs3d_Presentation)*) &TheStructToFill);
myPresentableObject->Compute(Projector(aProjector),P);
}
//=======================================================================
//function : Compute
//purpose :
//=======================================================================
Handle(Graphic3d_Structure) PrsMgr_Presentation3d::
Compute(const Handle(Graphic3d_DataStructureManager)& aProjector,
const Handle(Geom_Transformation)& TheTrsf)
{
#ifdef DEB
cout<<"passage in G = Compute(P,Trsf)"<<endl;
#endif
Handle(Prs3d_Presentation) g = new Prs3d_Presentation(Handle(PrsMgr_PresentationManager3d)::DownCast(PresentationManager())->StructureManager());
if(TheTrsf->Form()== gp_Translation){
#ifdef DEB
cout<<"\tla Trsf est une translation"<<endl;
#endif
myPresentableObject->Compute(Projector(aProjector),g);
g->Transform(TheTrsf);
}
else{
// waiting that something is done in gp_Trsf...rob
Standard_Boolean good (Standard_True);
for (Standard_Integer i=1;i<=3 && good ;i++){
for (Standard_Integer j=1;j<=3 && good ;j++){
if(i!=j){
if(Abs(TheTrsf->Value(i,j)) > Precision::Confusion())
good = Standard_False;
}
}
}
if(good){
#ifdef DEB
cout<<"\t it is checked if Trsf is a Translation"<<endl;
#endif
myPresentableObject->Compute(Projector(aProjector),g);
g->Transform(TheTrsf);
}
else{
#ifdef DEB
cout<<"\t Trsf is not only translation..."<<endl;
#endif
myPresentableObject->Compute(Projector(aProjector),TheTrsf,g);
}
}
return g;
}
//=======================================================================
//function : Compute
//purpose :
//=======================================================================
void PrsMgr_Presentation3d::Compute(const Handle(Graphic3d_DataStructureManager)& aProjector,
const Handle(Geom_Transformation)& TheTrsf,
const Handle(Graphic3d_Structure)& TheStructToFill)
{
#ifdef DEB
cout<<"passage in Compute(P,Trsf,Str)"<<endl;
#endif
Handle(Prs3d_Presentation) P = *((Handle(Prs3d_Presentation)*)&TheStructToFill);
#ifdef IMP040200
TheStructToFill->Clear();
myPresentableObject->Compute(Projector(aProjector),TheTrsf,P);
#else //Does not work properly, HLR seems deactivated for view rotation
if(TheTrsf->Form()== gp_Translation){
#ifdef DEB
cout<<"\t Trsf is a translation"<<endl;
#endif
// myPresentableObject->Compute(Projector(aProjector),P);
P->Transform(TheTrsf);
}
else{
// waiting that something is done in gp_Trsf...rob
Standard_Boolean good (Standard_True);
for (Standard_Integer i=1;i<=3 && good ;i++){
for (Standard_Integer j=1;j<=3 && good ;j++){
if(i!=j){
if(Abs(TheTrsf->Value(i,j)) > Precision::Confusion())
good = Standard_False;
}
}
}
if(good && !TheStructToFill->IsEmpty()){
#ifdef DEB
cout<<"\t it is checked if Trsf is a Translation"<<endl;
#endif
P->Transform(TheTrsf);
}
else{
TheStructToFill->Clear();
#ifdef DEB
cout<<"\t Trsf is not only translation..."<<endl;
#endif
myPresentableObject->Compute(Projector(aProjector),TheTrsf,P);
}
}
#endif
}
//=======================================================================
//function : Projector
//purpose :
//=======================================================================
Handle(Prs3d_Projector) PrsMgr_Presentation3d::Projector(const Handle(Graphic3d_DataStructureManager)& aProjector) {
Visual3d_ViewOrientation VO = Handle(Visual3d_View)::DownCast(aProjector)->ViewOrientation();
Standard_Real DX, DY, DZ,XAt, YAt , ZAt,XUp, YUp, ZUp;
VO.ViewReferencePlane().Coord(DX, DY, DZ);
VO.ViewReferencePoint().Coord(XAt,YAt,ZAt);
VO.ViewReferenceUp().Coord(XUp, YUp, ZUp);
Visual3d_ViewMapping VM = Handle(Visual3d_View)::DownCast(aProjector)->ViewMapping();
Standard_Boolean pers = (VM.Projection() == Visual3d_TOP_PERSPECTIVE);
Standard_Real focale = 0.0 ;
if (pers) {
Standard_Real Xrp,Yrp,Zrp,ViewPlane,FrontPlane ;
Graphic3d_Vertex Prp = VM.ProjectionReferencePoint() ;
Prp.Coord(Xrp,Yrp,Zrp);
FrontPlane = VM.FrontPlaneDistance() ;
ViewPlane = VM.ViewPlaneDistance() ;
focale = FrontPlane + Zrp - ViewPlane ;
}
Handle(Prs3d_Projector) Proj = new Prs3d_Projector(pers,focale,DX, DY, DZ,XAt, YAt , ZAt,XUp, YUp, ZUp);
return Proj;
}
void PrsMgr_Presentation3d::Destroy () {
if (!myStructure.IsNull())
myStructure->Clear();
myStructure.Nullify();
}
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