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occt/src/V3d/V3d_View.cxx
duv b5ac8292b0 0024001: Stereographic rendering support 
Deleted TODOs which were used when branch was built without OpenCL.
Modified test case bugs/vis/bug23747_2 (changed textured shape)
2014-01-23 14:46:06 +04:00

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// 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 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.
/***********************************************************************
FONCTION :
----------
Classe V3d_View :
HISTORIQUE DES MODIFICATIONS :
--------------------------------
00-09-92 : GG ; Creation.
02-10-96 : FMN ; Suppression appel Redraw sans MustBeResized()
05-06-97 : FMN ; Correction FitAll()
30-06-97 : GG ; Correction + Optimisation de Panning(...)
On fait la translation + le zoom en une seule
operation au lieu de 2 precedemment qui etait buggee.
09-07-97 : FMN ; Correction FitAll() sur le Ratio
16-07-97 : FMN ; Correction FitAll() sur le calcul de la Box
22-07-97 : FMN ; Ajout mode RetainMode pour le Transient
15-12-97 : FMN ; Ajout texture mapping
17-12-97 : FMN ; CTS19129 Correction FitAll() multiple
18-12-97 : FMN ; Ajout mode Ajout
24-12-97 : FMN ; Remplacement de math par MathGra
24-12-97 : CQO ; BUC50037 Xw_Window -> Aspect_Window
31-12-97 : CAL ; Remplacement de MathGra par Array2OfReal
07-01-98 : CAL ; Ajout de la methode DoMapping.
07-01-98 : CAL ; Retrait de tous les "this->" inutiles
21-01-98 : CAL ; Remplacement des Window->Position () par Window->Size ()
27-01-98 : FMN ; PERF: OPTIMISATION LOADER (LOPTIM)
12-02-98 : GG ; Reactivation du Redraw dans MustBeResized()
23-02-98 : FMN ; Remplacement PI par Standard_PI
25-02-98 : FMN ; PERF.27: Optimisation of view creation from existing view
11-03-98 : STT ; S3558
19-03-98 : FMN ; Probleme dans FitAll car la methode WNT_Window::Size(Real,Real)
ne marche pas.
08-04-98 : STT ; suppr. S3558
10-04-98 : CAL ; Ajout des methodes RefToPix et PixToRef
13-06-98 : FMN ; Probleme dans FitAll car la methode WNT_Window::Size(Real,Real)
ne marche pas. Contournement en appelant WNT_Window::Size(Int,Int).
16-08-98 : CAL ; S3892. Ajout grilles 3d.
09-09-98 : CAL ; S3892. Generalisation de TrsPoint.
24-09-98 : CAL ; Ajout d'un parametre a V3d_View::SetPlotter.
06-10-98 : CAL ; Ajout d'un TIMER si CSF_GraphicTimer est definie.
16-10-98 : CAL ; Retrait d'un TIMER si CSF_GraphicTimer est definie.
06-11-98 : CAL ; PRO ?????. Probleme dans ZFitAll si un point dans la vue.
13-06-98 : FMN ; PRO14896: Correction sur la gestion de la perspective (cf Programming Guinde)
29-OCT-98 : DCB : Adding ScreenCopy () method.
10-11-99 : GG ; PRO19603 Add Redraw( area ) method
IMP130100 : GG
-> Don't increase too much the ZSize.
-> Initialize correctly the Z clipping and D cueing
planes.
IMP100701 : SZV ; Add ToPixMap() method
REMARQUES :
-----------
About FitAll() multiple. This probleme is caused by missing
precision of transformation matrices. If it is supposed that
projection is made in the plane (U,V), there is a difference
after several Zoom - compared to the exact value (cf ZoomX).
Don't forget that the matrices work in float and not in double.
To solve the problem (for lack of a better solution) I make 2 passes.
************************************************************************/
//GER61351 //GG_15/12/99 Add SetBackgroundColor() and BackgroundColor() methods
#define IMP020300 //GG Don't use ZFitAll in during Rotation
// for perf improvment
#define IMP210600 //GG Avoid to have infinite loop when call Rotation() method
// without call before StartRotation().
// This problem occurs when CTRL MB3 is maintain press betwwen 2 views.
#define IMP250900 //GG Enable rotation around screen Z axis when
// rotation begin far the center of the screen.
// Thanks to Patrick REGINSTER (SAMTECH)
// GG 21/12/00 Due to a regression on the previous specifications
// this new functionnality is right now deactivated
// by default (see StartRotation(...,zRotationThreshold)
// method.
#define BUC60952 //GG Enable to rotate around the view axis
// and the required view point
#define RIC120302 //GG Add a NEW SetWindow method which enable
// to connect a graphic widget and context to OGL.
#define IMP260302 //GG To avoid conflicting in Window destructor
// nullify this handle in Remove method
#define OCC280 //SAV fix for FitAll problem in the perspective view.
#define OCC1188 //SAV Added methods to set background image
/*----------------------------------------------------------------------*/
/*
* Includes
*/
#include <Standard_TypeMismatch.hxx>
#include <Visual3d_ViewManager.hxx>
#include <Visual3d_Light.hxx>
#include <Image_AlienPixMap.hxx>
#include <V3d.hxx>
#include <V3d_View.ixx>
#include <V3d_BadValue.hxx>
#include <V3d_StereoDumpOptions.hxx>
#include <Standard_ShortReal.hxx>
#include <gp_Dir.hxx>
#include <gp_Pln.hxx>
#include <TColStd_Array2OfReal.hxx>
#include <Visual3d_TransientManager.hxx>
#include <Precision.hxx>
#include <Graphic3d_Structure.hxx>
#include <Graphic3d_MapIteratorOfMapOfStructure.hxx>
#include <Graphic3d_MapOfStructure.hxx>
#include <Graphic3d_TextureEnv.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_GraphicDriver.hxx>
// S3603
#include <Aspect_GenericColorMap.hxx>
#include <Aspect_TypeMap.hxx>
#include <Aspect_WidthMap.hxx>
#include <Aspect_MarkMap.hxx>
#include <Aspect_FontMap.hxx>
#include <TColStd_HSequenceOfInteger.hxx>
#define V3d_FLAG_COMPUTATION 0x00000004
// Perspective
#include <OSD_Environment.hxx>
/*----------------------------------------------------------------------*/
/*
* Constant
*/
#define DEUXPI (2. * M_PI)
/*----------------------------------------------------------------------*/
//-Constructors
V3d_View::V3d_View(const Handle(V3d_Viewer)& VM, const V3d_TypeOfView Type ) :
MyProjModel(V3d_TPM_SCREEN),
MyViewer(VM.operator->()),
MyActiveLights(),
MyViewContext (),
myActiveLightsIterator(),
SwitchSetFront(Standard_False),
MyTrsf (1, 4, 1, 4),
myAutoZFitMode (Standard_True)
{
myImmediateUpdate = Standard_False;
MyView = new Visual3d_View(MyViewer->Viewer());
// { Begin to retrieve the definition from ViewContext.
// Step MyViewContext = MyView->Context() ;
// to permit MyView->SetContext to compare
// the old and the new context.
// No problem for MyViewMapping, MyViewOrientation
// as MyView->SetViewMapping and MyView->SetViewOrientation
// don't try to optimize the modifications introduced to
// viewmapping and vieworientation.
// Aliasing
if ((MyView->Context ()).AliasingIsOn ())
MyViewContext.SetAliasingOn ();
else
MyViewContext.SetAliasingOff ();
// DepthCueing
MyViewContext.SetDepthCueingBackPlane
((MyView->Context ()).DepthCueingBackPlane ());
MyViewContext.SetDepthCueingFrontPlane
((MyView->Context ()).DepthCueingFrontPlane ());
if ((MyView->Context ()).DepthCueingIsOn ())
MyViewContext.SetDepthCueingOn ();
else
MyViewContext.SetDepthCueingOff ();
// ZClipping
MyViewContext.SetZClippingBackPlane
((MyView->Context ()).ZClippingBackPlane ());
MyViewContext.SetZClippingFrontPlane
((MyView->Context ()).ZClippingFrontPlane ());
if ((MyView->Context ()).FrontZClippingIsOn ())
MyViewContext.SetFrontZClippingOn ();
else
MyViewContext.SetFrontZClippingOff ();
if ((MyView->Context ()).BackZClippingIsOn ())
MyViewContext.SetBackZClippingOn ();
else
MyViewContext.SetBackZClippingOff ();
// Visualization and Shading Model
MyViewContext.SetModel ((MyView->Context ()).Model ());
MyViewContext.SetVisualization ((MyView->Context ()).Visualization ());
// Texture Mapping
MyViewContext.SetSurfaceDetail (MyView->Context ().SurfaceDetail ());
MyViewContext.SetTextureEnv (MyView->Context ().TextureEnv ());
// } End of retrieval of the definition of ViewContext.
MyBackground = VM->GetBackgroundColor() ;
MyGradientBackground = VM->GetGradientBackground() ;
// camera init
Handle(Graphic3d_Camera) aCamera = new Graphic3d_Camera();
aCamera->SetFOVy (45.0);
aCamera->SetIOD (Graphic3d_Camera::IODType_Relative, 0.05);
aCamera->SetZFocus (Graphic3d_Camera::FocusType_Relative, 1.0);
SetCamera (aCamera);
SetAxis (0.,0.,0.,1.,1.,1.);
SetVisualization (VM->DefaultVisualization());
SetShadingModel (VM->DefaultShadingModel());
SetSurfaceDetail (VM->DefaultSurfaceDetail());
SetTwist (0.);
SetAt (0.,0.,0.);
SetProj (VM->DefaultViewProj());
SetSize (VM->DefaultViewSize());
Standard_Real zsize = VM->DefaultViewSize();
SetZSize (2.*zsize);
SetZClippingDepth (0.);
SetZClippingWidth (zsize);
SetZCueingDepth (0.);
SetZCueingWidth (zsize);
SetDepth (VM->DefaultViewSize()/2.0);
SetCenter (0.,0.);
SetViewMappingDefault();
VM->AddView (this);
Init();
myImmediateUpdate = Standard_True;
aCamera->SetProjectionType ((Type == V3d_ORTHOGRAPHIC)
? Graphic3d_Camera::Projection_Orthographic
: Graphic3d_Camera::Projection_Perspective);
MyTransparencyFlag = Standard_False;
}
/*----------------------------------------------------------------------*/
V3d_View::V3d_View(const Handle(V3d_Viewer)& theVM,const Handle(V3d_View)& theView) :
MyProjModel(V3d_TPM_SCREEN),
MyViewer(theVM.operator->()),
MyActiveLights(),
MyViewContext (),
myActiveLightsIterator(),
SwitchSetFront(Standard_False),
MyTrsf (1, 4, 1, 4),
myAutoZFitMode (Standard_True)
{
Handle(Visual3d_View) aFromView = theView->View();
myImmediateUpdate = Standard_False;
MyView = new Visual3d_View (MyViewer->Viewer());
for (theView->InitActiveLights(); theView->MoreActiveLights(); theView->NextActiveLights())
{
MyActiveLights.Append (theView->ActiveLight());
}
MyViewContext = aFromView->Context() ;
SetCamera (new Graphic3d_Camera (theView->Camera()));
MyBackground = aFromView->Background() ;
MyGradientBackground = aFromView->GradientBackground();
MyView->SetContext (MyViewContext) ;
SetAxis (0.0, 0.0, 0.0, 1.0, 1.0, 1.0);
theVM->AddView (this);
Init();
myImmediateUpdate = Standard_True;
}
/*----------------------------------------------------------------------*/
//-Methods, in order
void V3d_View::SetMagnify(const Handle(Aspect_Window)& TheWindow,
const Handle(V3d_View)& aPreviousView,
const Standard_Integer x1,
const Standard_Integer y1,
const Standard_Integer x2,
const Standard_Integer y2)
{
if( !MyView->IsDefined() ) {
Standard_Real a,b,c,d;
aPreviousView->Convert(x1,y1,a,b);
aPreviousView->Convert(x2,y2,c,d);
MyView->SetWindow(TheWindow) ;
FitAll(TheWindow,a,b,c,d);
MyView->SetContext(MyViewContext) ;
MyView->SetBackground(MyBackground) ;
MyViewer->SetViewOn(this) ;
MyWindow = TheWindow;
MyView->Redraw() ;
SetViewMappingDefault();
}
}
/*----------------------------------------------------------------------*/
void V3d_View::SetWindow(const Handle(Aspect_Window)& TheWindow)
{
Standard_MultiplyDefined_Raise_if( MyView->IsDefined(),
"V3d_View::SetWindow, window of view already defined");
MyView->SetWindow(TheWindow) ;
// AGV: Method V3d_View::SetWindow() should assign the field MyWindow before
// calling Redraw(). Otherwise it is impossible to call certain methods of
// V3d_View like Convert() inside the context of Redraw(),
// particularly in class NIS_View.
MyWindow = TheWindow;
// SetWindow carries out SetRatio and modifies
MyView->SetContext(MyViewContext) ;
MyView->SetBackground(MyBackground) ;
MyViewer->SetViewOn(this) ;
MyView->Redraw() ;
}
// RIC120302
/*----------------------------------------------------------------------*/
void V3d_View::SetWindow(const Handle(Aspect_Window)& aWindow,
const Aspect_RenderingContext aContext,
const Aspect_GraphicCallbackProc& aDisplayCB,
const Standard_Address aClientData)
{
Standard_MultiplyDefined_Raise_if( MyView->IsDefined(),
"V3d_View::SetWindow, "
"window of view already defined");
// AGV: Method V3d_View::SetWindow() should assign the field MyWindow before
// calling Redraw(). Otherwise it is impossible to call certain methods of
// V3d_View like Convert() inside the context of Redraw(),
// particularly in class NIS_View.
MyWindow = aWindow;
MyView->SetWindow(aWindow, aContext, aDisplayCB, aClientData) ;
MyView->SetContext(MyViewContext) ;
MyView->SetBackground(MyBackground) ;
MyViewer->SetViewOn(this) ;
MyView->Redraw() ;
}
// RIC120302
/*----------------------------------------------------------------------*/
void V3d_View::Remove() const
{
MyViewer->DelView (this);
MyView->Remove();
Handle(Aspect_Window)& aWin = const_cast<Handle(Aspect_Window)&> (MyWindow);
aWin.Nullify();
}
/*----------------------------------------------------------------------*/
void V3d_View::Update() const
{
if( MyView->IsDefined() ) MyView->Update() ;
}
/*----------------------------------------------------------------------*/
void V3d_View::Redraw() const
{
if( MyView->IsDefined() ) MyView->Redraw() ;
}
/*----------------------------------------------------------------------*/
void V3d_View::Redraw(const Standard_Integer xc,const Standard_Integer yc,
const Standard_Integer width,const Standard_Integer height) const
{
if( MyView->IsDefined() ) MyView->Redraw(xc,yc,width,height) ;
}
/*----------------------------------------------------------------------*/
Standard_Boolean V3d_View::IsEmpty() const
{
Standard_Boolean TheStatus = Standard_True ;
if( MyView->IsDefined() ) {
Standard_Integer Nstruct = MyView->NumberOfDisplayedStructures() ;
if( Nstruct > 0 ) TheStatus = Standard_False ;
}
return (TheStatus) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::UpdateLights() const
{
MyView->SetContext(MyViewContext);
Update();
}
/*----------------------------------------------------------------------*/
void V3d_View::DoMapping()
{
if( MyView->IsDefined() ) {
(MyView->Window())->DoMapping() ;
}
}
/*----------------------------------------------------------------------*/
void V3d_View::MustBeResized()
{
if ( !MyLayerMgr.IsNull() )
MyLayerMgr->Resized();
if( MyView->IsDefined() ) {
MyView->Resized() ;
MyView->Redraw();
}
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBackgroundColor(const Quantity_TypeOfColor Type, const Standard_Real v1, const Standard_Real v2, const Standard_Real v3)
{
Standard_Real V1 = Max( Min( v1, 1.0 ), 0.0 );
Standard_Real V2 = Max( Min( v2, 1.0 ), 0.0 );
Standard_Real V3 = Max( Min( v3, 1.0 ), 0.0 );
Quantity_Color C( V1, V2, V3, Type );
SetBackgroundColor( C );
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBackgroundColor(const Quantity_Color &Color)
{
MyBackground.SetColor( Color );
if ( MyView->IsDefined() )
MyView->SetBackground( MyBackground );
//szv: Why?
if ( !MyLayerMgr.IsNull() )
MyLayerMgr->Resized();
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBackgroundColor(const Quantity_NameOfColor Name)
{
Quantity_Color C( Name );
SetBackgroundColor( C );
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBgGradientColors( const Quantity_Color& Color1,
const Quantity_Color& Color2,
const Aspect_GradientFillMethod FillStyle,
const Standard_Boolean status)
{
MyGradientBackground.SetColors(Color1, Color2, FillStyle);
if ( MyView->IsDefined() )
MyView->SetGradientBackground( MyGradientBackground, status );
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBgGradientColors( const Quantity_NameOfColor Color1,
const Quantity_NameOfColor Color2,
const Aspect_GradientFillMethod FillStyle,
const Standard_Boolean status )
{
Quantity_Color C1( Color1 );
Quantity_Color C2( Color2 );
MyGradientBackground.SetColors( C1, C2, FillStyle );
if ( MyView->IsDefined() )
MyView->SetGradientBackground( MyGradientBackground, status );
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBgGradientStyle( const Aspect_GradientFillMethod FillStyle,
const Standard_Boolean update)
{
Quantity_Color Color1, Color2;
MyGradientBackground.Colors( Color1, Color2 );
MyGradientBackground.SetColors( Color1, Color2, FillStyle );
if( MyView->IsDefined() )
MyView->SetBgGradientStyle( FillStyle, update ) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBackgroundImage( const Standard_CString FileName,
const Aspect_FillMethod FillStyle,
const Standard_Boolean update )
{
#ifdef OCC1188
if( MyView->IsDefined() )
MyView->SetBackgroundImage( FileName, FillStyle, update ) ;
#endif
}
/*----------------------------------------------------------------------*/
void V3d_View::SetBgImageStyle( const Aspect_FillMethod FillStyle,
const Standard_Boolean update )
{
#ifdef OCC1188
if( MyView->IsDefined() )
MyView->SetBgImageStyle( FillStyle, update ) ;
#endif
}
/*----------------------------------------------------------------------*/
void V3d_View::SetAxis(const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz)
{
Standard_Real D,Nx = Vx,Ny = Vy,Nz = Vz ;
D = Sqrt( Vx*Vx + Vy*Vy + Vz*Vz ) ;
V3d_BadValue_Raise_if ( D <= 0. , "V3d_View::SetAxis, bad axis");
Nx /= D ; Ny /= D ; Nz /= D ;
MyDefaultViewPoint.SetCoord(X,Y,Z) ;
MyDefaultViewAxis.SetCoord(Nx,Ny,Nz) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetShadingModel(const V3d_TypeOfShadingModel Model)
{
MyViewContext.SetModel((Visual3d_TypeOfModel) Model) ;
MyView->SetContext(MyViewContext) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetSurfaceDetail(const V3d_TypeOfSurfaceDetail Model)
{
MyViewContext.SetSurfaceDetail((Visual3d_TypeOfSurfaceDetail) Model) ;
MyView->SetContext(MyViewContext) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetTextureEnv(const Handle(Graphic3d_TextureEnv)& ATexture)
{
MyViewContext.SetTextureEnv(ATexture) ;
MyView->SetContext(MyViewContext) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetVisualization(const V3d_TypeOfVisualization Mode)
{
MyViewContext.SetVisualization((Visual3d_TypeOfVisualization) Mode);
MyView->SetContext(MyViewContext) ;
}
/*----------------------------------------------------------------------*/
void V3d_View::SetFront()
{
gp_Ax3 a = MyViewer->PrivilegedPlane();
Standard_Real xo, yo, zo, vx, vy, vz, xu, yu, zu;
a.Direction().Coord(vx,vy,vz);
a.YDirection().Coord(xu,yu,zu);
a.Location().Coord(xo,yo,zo);
myCamera->BeginUpdate();
myCamera->SetCenter (gp_Pnt (xo, yo, zo));
if(SwitchSetFront)
myCamera->SetDirection (gp_Dir (vx, vy, vz));
else
myCamera->SetDirection (gp_Dir (vx, vy, vz).Reversed());
myCamera->SetUp (gp_Dir (xu, yu, zu));
AutoZFit();
myCamera->EndUpdate();
SwitchSetFront = !SwitchSetFront;
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Rotate (const Standard_Real ax,
const Standard_Real ay,
const Standard_Real az,
const Standard_Boolean Start)
{
Standard_Real Ax = ax;
Standard_Real Ay = ay;
Standard_Real Az = az;
if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI;
else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI;
if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI;
else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI;
if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI;
else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI;
if (Start)
{
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
// rotate camera around 3 initial axes
gp_Dir aBackDir (gp_Vec (myCamStartOpCenter, myCamStartOpEye));
gp_Dir aXAxis (myCamStartOpUp.Crossed (aBackDir));
gp_Dir aYAxis (aBackDir.Crossed (aXAxis));
gp_Dir aZAxis (aXAxis.Crossed (aYAxis));
gp_Trsf aRot[3], aTrsf;
aRot[0].SetRotation (gp_Ax1 (myCamStartOpCenter, aYAxis), -Ax);
aRot[1].SetRotation (gp_Ax1 (myCamStartOpCenter, aXAxis), Ay);
aRot[2].SetRotation (gp_Ax1 (myCamStartOpCenter, aZAxis), Az);
aTrsf.Multiply (aRot[0]);
aTrsf.Multiply (aRot[1]);
aTrsf.Multiply (aRot[2]);
myCamera->Transform (aTrsf);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Rotate(const Standard_Real ax, const Standard_Real ay, const Standard_Real az,
const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Boolean Start)
{
Standard_Real Ax = ax ;
Standard_Real Ay = ay ;
Standard_Real Az = az ;
if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI ;
else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI ;
if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI ;
else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI ;
if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI ;
else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI ;
if (Start)
{
myGravityReferencePoint.SetCoord (X, Y, Z);
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
const Graphic3d_Vertex& aVref = myGravityReferencePoint;
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
// rotate camera around 3 initial axes
gp_Pnt aRCenter (aVref.X(), aVref.Y(), aVref.Z());
gp_Dir aZAxis (myCamera->Direction().Reversed());
gp_Dir aYAxis (myCamera->Up());
gp_Dir aXAxis (aYAxis.Crossed (aZAxis));
gp_Trsf aRot[3], aTrsf;
aRot[0].SetRotation (gp_Ax1 (aRCenter, aYAxis), -Ax);
aRot[1].SetRotation (gp_Ax1 (aRCenter, aXAxis), Ay);
aRot[2].SetRotation (gp_Ax1 (aRCenter, aZAxis), Az);
aTrsf.Multiply (aRot[0]);
aTrsf.Multiply (aRot[1]);
aTrsf.Multiply (aRot[2]);
myCamera->Transform (aTrsf);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Rotate(const V3d_TypeOfAxe Axe, const Standard_Real angle, const Standard_Boolean Start)
{
switch (Axe) {
case V3d_X :
Rotate(angle,0.,0.,Start);
break ;
case V3d_Y :
Rotate(0.,angle,0.,Start);
break ;
case V3d_Z :
Rotate(0.,0.,angle,Start);
break ;
}
}
/*----------------------------------------------------------------------*/
void V3d_View::Rotate(const V3d_TypeOfAxe Axe, const Standard_Real angle,
const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Boolean Start)
{
Standard_Real Angle = angle ;
if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
if (Start)
{
myGravityReferencePoint.SetCoord (X, Y, Z);
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
switch (Axe) {
case V3d_X :
myViewAxis.SetCoord(1.,0.,0.) ;
break ;
case V3d_Y :
myViewAxis.SetCoord(0.,1.,0.) ;
break ;
case V3d_Z :
myViewAxis.SetCoord(0.,0.,1.) ;
break ;
}
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
const Graphic3d_Vertex& aVref = myGravityReferencePoint;
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
// rotate camera around passed axis
gp_Trsf aRotation;
gp_Pnt aRCenter (aVref.X(), aVref.Y(), aVref.Z());
gp_Dir aRAxis ((Axe == V3d_X) ? 1.0 : 0.0,
(Axe == V3d_Y) ? 1.0 : 0.0,
(Axe == V3d_Z) ? 1.0 : 0.0);
aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
myCamera->Transform (aRotation);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Rotate(const Standard_Real angle, const Standard_Boolean Start)
{
Standard_Real Angle = angle;
if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
if( Start ) {
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
const Graphic3d_Vertex& aPnt = MyDefaultViewPoint;
const Graphic3d_Vector& anAxis = MyDefaultViewAxis;
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
gp_Trsf aRotation;
gp_Pnt aRCenter (aPnt.X(), aPnt.Y(), aPnt.Z());
gp_Dir aRAxis (anAxis.X(), anAxis.Y(), anAxis.Z());
aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
myCamera->Transform (aRotation);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Turn(const Standard_Real ax, const Standard_Real ay, const Standard_Real az, const Standard_Boolean Start)
{
Standard_Real Ax = ax;
Standard_Real Ay = ay;
Standard_Real Az = az;
if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI ;
else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI ;
if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI ;
else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI ;
if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI ;
else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI ;
if( Start ) {
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
// rotate camera around 3 initial axes
gp_Pnt aRCenter = myCamera->Eye();
gp_Dir aZAxis (myCamera->Direction().Reversed());
gp_Dir aYAxis (myCamera->Up());
gp_Dir aXAxis (aYAxis.Crossed (aZAxis));
gp_Trsf aRot[3], aTrsf;
aRot[0].SetRotation (gp_Ax1 (aRCenter, aYAxis), -Ax);
aRot[1].SetRotation (gp_Ax1 (aRCenter, aXAxis), Ay);
aRot[2].SetRotation (gp_Ax1 (aRCenter, aZAxis), Az);
aTrsf.Multiply (aRot[0]);
aTrsf.Multiply (aRot[1]);
aTrsf.Multiply (aRot[2]);
myCamera->Transform (aTrsf);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
/*----------------------------------------------------------------------*/
void V3d_View::Turn(const V3d_TypeOfAxe Axe, const Standard_Real angle, const Standard_Boolean Start)
{
switch (Axe) {
case V3d_X :
Turn(angle,0.,0.,Start);
break ;
case V3d_Y :
Turn(0.,angle,0.,Start);
break ;
case V3d_Z :
Turn(0.,0.,angle,Start);
break ;
}
}
void V3d_View::Turn(const Standard_Real angle, const Standard_Boolean Start)
{
Standard_Real Angle = angle ;
if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
if( Start ) {
myCamStartOpUp = myCamera->Up();
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
myCamera->BeginUpdate();
myCamera->SetUp (myCamStartOpUp);
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
const Graphic3d_Vector& anAxis = MyDefaultViewAxis;
gp_Trsf aRotation;
gp_Pnt aRCenter = myCamera->Eye();
gp_Dir aRAxis (anAxis.X(), anAxis.Y(), anAxis.Z());
aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
myCamera->Transform (aRotation);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
void V3d_View::SetTwist(const Standard_Real angle)
{
Standard_Real Angle = angle ;
Standard_Boolean TheStatus;
if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
gp_Dir aReferencePlane (myCamera->Direction().Reversed());
gp_Dir anUp;
anUp = gp_Dir (0.0, 0.0, 1.0);
TheStatus = ScreenAxis(aReferencePlane, anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
if( !TheStatus ) {
anUp = gp_Dir (0.0, 1.0, 0.0);
TheStatus = ScreenAxis(aReferencePlane, anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (1.0, 0.0, 0.0);
TheStatus = ScreenAxis(aReferencePlane, anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
V3d_BadValue_Raise_if( !TheStatus,"V3d_ViewSetTwist, alignment of Eye,At,Up,");
gp_Pnt aRCenter = myCamera->Center();
gp_Dir aZAxis (myCamera->Direction().Reversed());
gp_Trsf aTrsf;
aTrsf.SetRotation (gp_Ax1 (aRCenter, aZAxis), Angle);
Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
myCamera->BeginUpdate();
myCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
myCamera->Transform (aTrsf);
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
void V3d_View::SetAutoZFitMode (Standard_Boolean theMode)
{
myAutoZFitMode = theMode;
}
Standard_Boolean V3d_View::AutoZFitMode () const
{
return myAutoZFitMode;
}
void V3d_View::SetEye(const Standard_Real X,const Standard_Real Y,const Standard_Real Z)
{
Standard_Real Angle;
Angle = Twist();
myCamera->SetEye (gp_Pnt (X, Y, Z));
Standard_Boolean update = myImmediateUpdate;
myImmediateUpdate = Standard_False;
SetTwist(Angle);
AutoZFit();
myImmediateUpdate = update;
ImmediateUpdate();
}
void V3d_View::SetDepth(const Standard_Real Depth)
{
V3d_BadValue_Raise_if (Depth == 0. ,"V3d_View::SetDepth, bad depth");
if( Depth > 0. )
{
// Move eye using center (target) as anchor.
myCamera->SetDistance (Depth);
}
else
{
// Move the view ref point instead of the eye.
gp_Vec aDir (myCamera->Direction());
gp_Pnt aCameraEye = myCamera->Eye();
gp_Pnt aCameraCenter = aCameraEye.Translated (aDir.Multiplied (Abs (Depth)));
myCamera->SetCenter (aCameraCenter);
}
AutoZFit();
ImmediateUpdate();
}
void V3d_View::SetProj( const Standard_Real Vx,const Standard_Real Vy, const Standard_Real Vz )
{
Standard_Real Angle ;
V3d_BadValue_Raise_if( Sqrt(Vx*Vx + Vy*Vy + Vz*Vz) <= 0.,
"V3d_View::SetProj, null projection vector");
Angle = Twist();
myCamera->SetDirection (gp_Dir (Vx, Vy, Vz).Reversed());
Standard_Boolean update = myImmediateUpdate;
myImmediateUpdate = Standard_False;
if( MyProjModel == V3d_TPM_SCREEN ) SetTwist(Angle) ;
AutoZFit();
myImmediateUpdate = update;
ImmediateUpdate();
}
void V3d_View::SetProj( const V3d_TypeOfOrientation Orientation )
{
Standard_Real Xpn=0;
Standard_Real Ypn=0;
Standard_Real Zpn=0;
switch (Orientation) {
case V3d_Zpos :
Ypn = 1.;
break;
case V3d_Zneg :
Ypn = -1.;
break;
default:
Zpn = 1.;
}
const Graphic3d_Vector& aBck = V3d::GetProjAxis (Orientation);
myCamera->BeginUpdate();
myCamera->SetCenter (gp_Pnt (0, 0, 0));
myCamera->SetDirection (gp_Dir (aBck.X(), aBck.Y(), aBck.Z()).Reversed());
myCamera->SetUp (gp_Dir (Xpn, Ypn, Zpn));
myCamera->EndUpdate();
AutoZFit();
ImmediateUpdate();
}
void V3d_View::SetAt(const Standard_Real X,const Standard_Real Y,const Standard_Real Z)
{
Standard_Real Angle;
Angle = Twist();
myCamera->SetCenter (gp_Pnt (X, Y, Z));
Standard_Boolean update = myImmediateUpdate;
myImmediateUpdate = Standard_False;
SetTwist(Angle) ;
AutoZFit();
myImmediateUpdate = update;
ImmediateUpdate();
}
void V3d_View::SetUp(const Standard_Real Vx,const Standard_Real Vy,const Standard_Real Vz)
{
Standard_Boolean TheStatus ;
V3d_BadValue_Raise_if( Sqrt(Vx*Vx + Vy*Vy + Vz*Vz) <= 0. ,
"V3d_View::SetUp, nullUp vector");
gp_Dir aReferencePlane (myCamera->Direction().Reversed());
gp_Dir anUp (Vx, Vy, Vz);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
if( !TheStatus ) {
anUp = gp_Dir (0.0, 0.0, 1.0);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (0.0, 1.0, 0.0);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (1.0, 0.0, 0.0);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
V3d_BadValue_Raise_if( !TheStatus,"V3d_View::Setup, alignment of Eye,At,Up");
Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
myCamera->BeginUpdate();
myCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetUp( const V3d_TypeOfOrientation Orientation )
{
Standard_Boolean TheStatus ;
gp_Dir aReferencePlane (myCamera->Direction().Reversed());
gp_Dir anUp;
const Graphic3d_Vector& aViewReferenceUp = V3d::GetProjAxis(Orientation) ;
anUp = gp_Dir (aViewReferenceUp.X(), aViewReferenceUp.Y(), aViewReferenceUp.Z());
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
if( !TheStatus ) {
anUp = gp_Dir (0.,0.,1.);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (0.,1.,0.);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (1.,0.,0.);
TheStatus = ScreenAxis(aReferencePlane,anUp,
myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
}
V3d_BadValue_Raise_if( !TheStatus, "V3d_View::SetUp, alignment of Eye,At,Up");
Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
myCamera->BeginUpdate();
myCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetViewOrientationDefault()
{
MyView->SetViewOrientationDefault() ;
ImmediateUpdate();
}
void V3d_View::ResetViewOrientation()
{
MyView->ViewOrientationReset() ;
ImmediateUpdate();
}
void V3d_View::Reset( const Standard_Boolean update )
{
Handle(Graphic3d_Camera) aDefaultCamera = MyView->DefaultCamera();
if (!aDefaultCamera.IsNull())
{
myCamera->BeginUpdate();
myCamera->CopyMappingData (aDefaultCamera);
myCamera->CopyOrientationData (aDefaultCamera);
myCamera->EndUpdate();
}
AutoZFit();
SwitchSetFront = Standard_False;
if( !myImmediateUpdate && update ) Update();
}
void V3d_View::Panning(const Standard_Real Dx, const Standard_Real Dy, const Quantity_Factor aZoomFactor, const Standard_Boolean Start)
{
V3d_BadValue_Raise_if( aZoomFactor <= 0.,"V3d_View::Panning, bad zoom factor");
if( Start ) {
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
myCamProjectionShift = myCamera->ProjectionShift();
}
myCamera->BeginUpdate();
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
myCamera->SetProjectionShift (myCamProjectionShift);
PanCamera (-Dx, -Dy);
gp_Pnt aViewDims = myCamera->ViewDimensions();
ZoomCamera (aViewDims.X() / aZoomFactor, aViewDims.Y() / aZoomFactor);
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetCenter(const Standard_Integer X, const Standard_Integer Y)
{
Standard_Real x,y;
Convert(X,Y,x,y);
SetCenter(x,y);
}
void V3d_View::SetCenter(const Standard_Real Xc, const Standard_Real Yc)
{
myCamera->SetProjectionShift (gp_Pnt (-Xc, -Yc, 0.0));
ImmediateUpdate();
}
void V3d_View::SetSize(const Standard_Real Size)
{
V3d_BadValue_Raise_if( Size <= 0.,
"V3d_View::SetSize, Window Size is NULL");
myCamera->BeginUpdate();
myCamera->SetScale (Size);
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetZSize(const Standard_Real Size)
{
Standard_Real Zmax = Size/2.;
Standard_Real aDistance = myCamera->Distance();
if( Size <= 0. ) {
Zmax = aDistance;
}
Standard_Real Front = MyViewContext.ZClippingFrontPlane();
Standard_Real Back = MyViewContext.ZClippingBackPlane();
myCamera->SetZFar (Zmax + aDistance * 2.0);
myCamera->SetZNear (-Zmax + aDistance);
if (MyViewContext.FrontZClippingIsOn() ||
MyViewContext.BackZClippingIsOn())
{
MyViewContext.SetZClippingFrontPlane (Front);
MyViewContext.SetZClippingBackPlane (Back);
MyView->SetContext (MyViewContext);
}
}
void V3d_View::SetZoom(const Standard_Real Coef,const Standard_Boolean Start)
{
V3d_BadValue_Raise_if( Coef <= 0.,"V3d_View::SetZoom, bad coefficient");
if (Start)
{
myCamStartOpEye = myCamera->Eye();
myCamStartOpCenter = myCamera->Center();
}
Standard_Real aViewWidth = myCamera->ViewDimensions().X();
Standard_Real aViewHeight = myCamera->ViewDimensions().Y();
// ensure that zoom will not be too small or too big
Standard_Real coef = Coef;
if (aViewWidth < coef * Precision::Confusion())
{
coef = aViewWidth / Precision::Confusion();
}
else if (aViewWidth > coef * 1e12)
{
coef = aViewWidth / 1e12;
}
if (aViewHeight < coef * Precision::Confusion())
{
coef = aViewHeight / Precision::Confusion();
}
else if (aViewHeight > coef * 1e12)
{
coef = aViewHeight / 1e12;
}
myCamera->BeginUpdate();
myCamera->SetEye (myCamStartOpEye);
myCamera->SetCenter (myCamStartOpCenter);
myCamera->SetScale (myCamera->Scale() / Coef);
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetScale( const Standard_Real Coef )
{
V3d_BadValue_Raise_if( Coef <= 0. ,"V3d_View::SetScale, bad coefficient");
Handle(Graphic3d_Camera) aDefaultCamera = MyView->DefaultCamera();
myCamera->BeginUpdate();
// Strange behavior for the sake of compatibility.
if (!aDefaultCamera.IsNull())
{
myCamera->SetAspect (aDefaultCamera->Aspect());
Standard_Real aDefaultScale = aDefaultCamera->Scale();
myCamera->SetScale (aDefaultScale / Coef);
}
else
{
myCamera->SetScale (myCamera->Scale() / Coef);
}
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
void V3d_View::SetAxialScale( const Standard_Real Sx, const Standard_Real Sy, const Standard_Real Sz )
{
V3d_BadValue_Raise_if( Sx <= 0. || Sy <= 0. || Sz <= 0.,"V3d_View::SetAxialScale, bad coefficient");
myCamera->BeginUpdate();
myCamera->SetAxialScale (gp_Pnt (Sx, Sy, Sz));
AutoZFit();
myCamera->EndUpdate();
}
void V3d_View::FitAll(const Standard_Real Coef, const Standard_Boolean update)
{
Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
// retrieve min / max values for current displayed objects
MyView->MinMaxValues (Xmin, Ymin, Zmin,
Xmax, Ymax, Zmax);
Standard_Real LIM = ShortRealLast() - 1.0;
if (Abs(Xmin) > LIM || Abs(Ymin) > LIM || Abs(Zmin) > LIM
|| Abs(Xmax) > LIM || Abs(Ymax) > LIM || Abs(Zmax) > LIM)
{
ImmediateUpdate();
return;
}
myCamera->BeginUpdate();
FitCamera (Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
myCamera->SetScale (myCamera->Scale() * (1.0 + Coef));
AutoZFit();
myCamera->EndUpdate();
if (myImmediateUpdate || update)
{
Update();
}
}
//===============================================================================================
//function : AutoZFit
//purpose :
//===============================================================================================
void V3d_View::AutoZFit()
{
if (myAutoZFitMode)
{
ZFitAll();
}
}
void V3d_View::ZFitAll (const Standard_Real theCoeff)
{
V3d_BadValue_Raise_if (theCoeff <= 0.0, "V3d_View::ZFitAll, bad margin coefficient");
Standard_Real aMinMax[6];
MyView->MinMaxValues (aMinMax[0], aMinMax[1], aMinMax[2], aMinMax[3], aMinMax[4], aMinMax[5]);
gp_Pnt aBMin = gp_Pnt (aMinMax[0], aMinMax[1], aMinMax[2]);
gp_Pnt aBMax = gp_Pnt (aMinMax[3], aMinMax[4], aMinMax[5]);
// check bounding box for validness
Standard_Real aLim = (ShortRealLast() - 1.0);
if (Abs (aBMin.X()) > aLim || Abs (aBMin.Y()) > aLim || Abs (aBMin.Z()) > aLim ||
Abs (aBMax.X()) > aLim || Abs (aBMax.Y()) > aLim || Abs (aBMax.Z()) > aLim)
{
SetZSize (0.0);
ImmediateUpdate();
return;
}
// adapt bound points
gp_Pnt aPnts[8] =
{ gp_Pnt (aBMin.X(), aBMin.Y(), aBMin.Z()),
gp_Pnt (aBMin.X(), aBMin.Y(), aBMax.Z()),
gp_Pnt (aBMin.X(), aBMax.Y(), aBMin.Z()),
gp_Pnt (aBMin.X(), aBMax.Y(), aBMax.Z()),
gp_Pnt (aBMax.X(), aBMin.Y(), aBMin.Z()),
gp_Pnt (aBMax.X(), aBMin.Y(), aBMax.Z()),
gp_Pnt (aBMax.X(), aBMax.Y(), aBMin.Z()),
gp_Pnt (aBMax.X(), aBMax.Y(), aBMax.Z()) };
// camera Eye plane
gp_Dir aDir = myCamera->Direction();
gp_Pnt anEye = myCamera->Eye();
gp_Pln aCamPln (anEye, aDir);
Standard_Real aMinDist = RealLast() - 1;
Standard_Real aMaxDist = RealFirst() + 1;
gp_Pnt anAxialScale = myCamera->AxialScale();
// get minimum and maximum distances to the eye plane
for (Standard_Integer aPntIt = 0; aPntIt < 8; ++aPntIt)
{
gp_Pnt aPnt = aPnts[aPntIt];
aPnt = gp_Pnt (aPnt.X() * anAxialScale.X(),
aPnt.Y() * anAxialScale.Y(),
aPnt.Z() * anAxialScale.Z());
Standard_Real aDistance = aCamPln.Distance (aPnt);
// check if the camera is intruded into the scene
if (aDir.IsOpposite (gp_Vec (anEye, aPnt), M_PI * 0.5))
{
aDistance *= -1;
}
aMinDist = Min (aDistance, aMinDist);
aMaxDist = Max (aDistance, aMaxDist);
}
// compute depth of bounding box center
Standard_Real aMidDepth = (aMinDist + aMaxDist) * 0.5;
Standard_Real aHalfDepth = (aMaxDist - aMinDist) * 0.5;
// compute enlarged or shrank near and far z ranges.
Standard_Real aZNear = aMidDepth - aHalfDepth * theCoeff;
Standard_Real aZFar = aMidDepth + aHalfDepth * theCoeff;
myCamera->BeginUpdate();
if (myCamera->IsOrthographic())
{
myCamera->SetZFar (myCamera->Distance() * 3.0);
myCamera->SetZNear (0.0);
if (aZNear < 0.0)
{
myCamera->SetDistance (myCamera->Distance() - (aZNear + myCamera->ZNear()) + 10.0);
}
}
else
{
myCamera->SetZFar (aZFar);
myCamera->SetZNear (aZNear);
}
myCamera->EndUpdate();
ImmediateUpdate();
}
// Better to use ZFitAll instead.
void V3d_View::DepthFitAll(const Quantity_Coefficient Aspect,
const Quantity_Coefficient Margin)
{
Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax,U,V,W,U1,V1,W1 ;
Standard_Real Umin,Vmin,Wmin,Umax,Vmax,Wmax ;
Standard_Real Dx,Dy,Dz,Size;
Standard_Integer Nstruct = MyView->NumberOfDisplayedStructures() ;
if((Nstruct <= 0) || (Aspect < 0.) || (Margin < 0.) || (Margin > 1.)) {
ImmediateUpdate();
return ;
}
MyView->MinMaxValues(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax) ;
Standard_Real LIM = ShortRealLast() -1.;
if (Abs(Xmin) > LIM || Abs(Ymin) > LIM || Abs(Zmin) > LIM
|| Abs(Xmax) > LIM || Abs(Ymax) > LIM || Abs(Zmax) > LIM ) {
ImmediateUpdate();
return ;
}
if (Xmin == Xmax && Ymin == Ymax && Zmin == Zmax) {
ImmediateUpdate();
return ;
}
MyView->Projects(Xmin,Ymin,Zmin,U,V,W) ;
MyView->Projects(Xmax,Ymax,Zmax,U1,V1,W1) ;
Umin = Min(U,U1) ; Umax = Max(U,U1) ;
Vmin = Min(V,V1) ; Vmax = Max(V,V1) ;
Wmin = Min(W,W1) ; Wmax = Max(W,W1) ;
MyView->Projects(Xmin,Ymin,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymin,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymin,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymax,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmin,Ymax,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmin,Ymax,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
// Adjust Z size
Wmax = Max(Abs(Wmin),Abs(Wmax)) ;
Dz = 2.*Wmax + Margin * Wmax;
// Compute depth value
Dx = Abs(Umax - Umin) ; Dy = Abs(Vmax - Vmin) ; // Dz = Abs(Wmax - Wmin);
Dx += Margin * Dx; Dy += Margin * Dy;
Size = Sqrt(Dx*Dx + Dy*Dy + Dz*Dz);
if( Size > 0. ) {
SetZSize(Size) ;
SetDepth( Aspect * Size / 2.);
}
ImmediateUpdate();
}
void V3d_View::FitAll(const Standard_Real Xmin, const Standard_Real Ymin, const Standard_Real Xmax, const Standard_Real Ymax)
{
FitAll(MyWindow,Xmin,Ymin,Xmax,Ymax);
ImmediateUpdate();
}
void V3d_View::WindowFitAll(const Standard_Integer Xmin, const Standard_Integer Ymin, const Standard_Integer Xmax, const Standard_Integer Ymax)
{
WindowFit(Xmin,Ymin,Xmax,Ymax);
}
void V3d_View::WindowFit(const Standard_Integer Xmin, const Standard_Integer Ymin, const Standard_Integer Xmax, const Standard_Integer Ymax)
{
if (!myCamera->IsOrthographic())
{
// normalize view coordiantes
Standard_Integer aWinWidth, aWinHeight;
MyWindow->Size (aWinWidth, aWinHeight);
// z coordinate of camera center
Standard_Real aDepth = myCamera->Project (myCamera->Center()).Z();
// camera projection coordinate are in NDC which are normalized [-1, 1]
Standard_Real aUMin = (2.0 / aWinWidth) * Xmin - 1.0;
Standard_Real aUMax = (2.0 / aWinWidth) * Xmax - 1.0;
Standard_Real aVMin = (2.0 / aWinHeight) * Ymin - 1.0;
Standard_Real aVMax = (2.0 / aWinHeight) * Ymax - 1.0;
// compute camera panning
gp_Pnt aScreenCenter (0.0, 0.0, aDepth);
gp_Pnt aFitCenter ((aUMin + aUMax) * 0.5, (aVMin + aVMax) * 0.5, aDepth);
gp_Pnt aPanTo = myCamera->ConvertProj2View (aFitCenter);
gp_Pnt aPanFrom = myCamera->ConvertProj2View (aScreenCenter);
gp_Vec aPanVec (aPanFrom, aPanTo);
gp_Pnt a1 (aUMin, aVMin, 0.0);
gp_Pnt a2 (aUMax, aVMax, 0.0);
gp_Pnt ap1 = myCamera->ConvertProj2View (a1);
gp_Pnt ap2 = myCamera->ConvertProj2View (a2);
// compute section size
gp_Pnt aFitTopRight (aUMax, aVMax, aDepth);
gp_Pnt aFitBotLeft (aUMin, aVMin, aDepth);
gp_Pnt aViewBotLeft = myCamera->ConvertProj2View (aFitBotLeft);
gp_Pnt aViewTopRight = myCamera->ConvertProj2View (aFitTopRight);
Standard_Real aUSize = aViewTopRight.X() - aViewBotLeft.X();
Standard_Real aVSize = aViewTopRight.Y() - aViewBotLeft.Y();
myCamera->BeginUpdate();
PanCamera (aPanVec.X(), -aPanVec.Y());
ZoomCamera (aUSize, aVSize);
AutoZFit();
myCamera->EndUpdate();
}
else
{
Standard_Real x1,y1,x2,y2;
Convert(Xmin,Ymin,x1,y1);
Convert(Xmax,Ymax,x2,y2);
FitAll(x1,y1,x2,y2);
}
}
void V3d_View::SetViewMappingDefault()
{
MyView->SetViewMappingDefault();
ImmediateUpdate();
}
void V3d_View::ResetViewMapping()
{
MyView->ViewMappingReset();
Update();
}
void V3d_View::ConvertToGrid(const Standard_Integer Xp, const Standard_Integer Yp, Standard_Real& Xg, Standard_Real& Yg, Standard_Real& Zg) const
{
Graphic3d_Vertex aVrp;
Standard_Real anX, anY, aZ;
Convert (Xp, Yp, anX, anY, aZ);
aVrp.SetCoord (anX, anY, aZ);
if( MyViewer->Grid()->IsActive() ) {
Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
aNewVrp.Coord (Xg,Yg,Zg) ;
} else
aVrp.Coord (Xg,Yg,Zg) ;
}
void V3d_View::ConvertToGrid(const Standard_Real X, const Standard_Real Y, const Standard_Real Z, Standard_Real& Xg, Standard_Real& Yg, Standard_Real& Zg) const
{
if( MyViewer->Grid()->IsActive() ) {
Graphic3d_Vertex aVrp (X,Y,Z) ;
Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
aNewVrp.Coord(Xg,Yg,Zg) ;
} else {
Xg = X; Yg = Y; Zg = Z;
}
}
Standard_Real V3d_View::Convert(const Standard_Integer Vp) const
{
Standard_Integer aDxw, aDyw ;
V3d_UnMapped_Raise_if (!MyView->IsDefined(), "view has no window");
MyWindow->Size (aDxw, aDyw);
Standard_Real aValue;
gp_Pnt aViewDims = myCamera->ViewDimensions();
aValue = aViewDims.X() * (Standard_Real)Vp / (Standard_Real)aDxw;
return aValue;
}
void V3d_View::Convert(const Standard_Integer Xp, const Standard_Integer Yp, Standard_Real& Xv, Standard_Real& Yv) const
{
Standard_Integer aDxw, aDyw;
V3d_UnMapped_Raise_if (!MyView->IsDefined(), "view has no window");
MyWindow->Size (aDxw, aDyw);
gp_Pnt aPoint (Xp * 2.0 / aDxw - 1.0, (aDyw - Yp) * 2.0 / aDyw - 1.0, 0.0);
aPoint = myCamera->ConvertProj2View (aPoint);
Xv = aPoint.X();
Yv = aPoint.Y();
}
Standard_Integer V3d_View::Convert(const Standard_Real Vv) const
{
V3d_UnMapped_Raise_if (!MyView->IsDefined(), "view has no window");
Standard_Integer aDxw, aDyw;
MyWindow->Size (aDxw, aDyw);
gp_Pnt aViewDims = myCamera->ViewDimensions();
Standard_Integer aValue = RealToInt (aDxw * Vv / (aViewDims.X()));
return aValue;
}
void V3d_View::Convert(const Standard_Real Xv, const Standard_Real Yv, Standard_Integer& Xp, Standard_Integer& Yp) const
{
V3d_UnMapped_Raise_if (!MyView->IsDefined(), "view has no window");
Standard_Integer aDxw, aDyw;
MyWindow->Size (aDxw, aDyw);
gp_Pnt aPoint (Xv, Yv, 0.0);
aPoint = myCamera->ConvertView2Proj (aPoint);
aPoint = gp_Pnt ((aPoint.X() + 1.0) * aDxw / 2.0, aDyw - (aPoint.Y() + 1.0) * aDyw / 2.0, 0.0);
Xp = RealToInt (aPoint.X());
Yp = RealToInt (aPoint.Y());
}
void V3d_View::Convert(const Standard_Integer Xp, const Standard_Integer Yp, Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
{
V3d_UnMapped_Raise_if (!MyView->IsDefined(), "view has no window");
Standard_Integer aHeight, aWidth;
MyWindow->Size (aWidth, aHeight);
Standard_Real anX = 2.0 * Xp / aWidth - 1.0;
Standard_Real anY = 2.0 * (aHeight - 1 - Yp) / aHeight - 1.0;
Standard_Real aZ = 2.0 * 0.0 - 1.0;
gp_Pnt aResult = myCamera->UnProject (gp_Pnt (anX, anY, aZ));
X = aResult.X();
Y = aResult.Y();
Z = aResult.Z();
Graphic3d_Vertex aVrp;
aVrp.SetCoord (X, Y, Z);
if( MyViewer->Grid()->IsActive() ) {
Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
aNewVrp.Coord (X, Y, Z) ;
}
}
void V3d_View::ConvertWithProj(const Standard_Integer Xp, const Standard_Integer Yp, Standard_Real& X, Standard_Real& Y, Standard_Real& Z, Standard_Real& Dx, Standard_Real& Dy, Standard_Real& Dz) const
{
V3d_UnMapped_Raise_if( !MyView->IsDefined(), "view has no window");
Standard_Integer aHeight, aWidth;
MyWindow->Size (aWidth, aHeight);
Standard_Real anX = 2.0 * Xp / aWidth - 1.0;
Standard_Real anY = 2.0 * (aHeight - 1 - Yp) / aHeight - 1.0;
Standard_Real aZ = 2.0 * 0.0 - 1.0;
gp_Pnt aResult = myCamera->UnProject (gp_Pnt (anX, anY, aZ));
X = aResult.X();
Y = aResult.Y();
Z = aResult.Z();
Graphic3d_Vertex aVrp;
aVrp.SetCoord (X, Y, Z);
aResult = myCamera->UnProject (gp_Pnt (anX, anY, aZ - 10.0));
Dx = X - aResult.X();
Dy = Y - aResult.Y();
Dz = Z - aResult.Z();
if( MyViewer->Grid()->IsActive() ) {
Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
aNewVrp.Coord (X, Y, Z) ;
}
}
void V3d_View::Convert(const Standard_Real X, const Standard_Real Y, const Standard_Real Z, Standard_Integer& Xp, Standard_Integer& Yp) const
{
V3d_UnMapped_Raise_if( !MyView->IsDefined(), "view has no window");
Standard_Integer aHeight, aWidth;
MyWindow->Size (aWidth, aHeight);
gp_Pnt aPoint = myCamera->Project (gp_Pnt (X, Y, Z));
Xp = RealToInt ((aPoint.X() + 1) * 0.5 * aWidth);
Yp = RealToInt ((aPoint.Y() + 1) * 0.5 * aHeight);
}
void V3d_View::Project(const Standard_Real X, const Standard_Real Y, const Standard_Real Z, Standard_Real &Xp, Standard_Real &Yp) const
{
Standard_Real Zp;
MyView->Projects (X, Y, Z, Xp, Yp, Zp);
}
void V3d_View::BackgroundColor(const Quantity_TypeOfColor Type,Standard_Real& V1, Standard_Real& V2, Standard_Real& V3) const
{
Quantity_Color C = BackgroundColor() ;
C.Values(V1,V2,V3,Type) ;
}
Quantity_Color V3d_View::BackgroundColor() const
{
return MyBackground.Color() ;
}
void V3d_View::GradientBackgroundColors(Quantity_Color& Color1,Quantity_Color& Color2) const
{
MyGradientBackground.Colors(Color1, Color2);
}
Aspect_GradientBackground V3d_View::GradientBackground() const
{
return MyGradientBackground;
}
Standard_Real V3d_View::Scale() const
{
Handle(Graphic3d_Camera) aDefaultCamera = MyView->DefaultCamera();
Standard_Real aCameraScale;
// Strange behavior for the sake of compatibility.
if (!aDefaultCamera.IsNull())
{
Standard_Real aDefaultScale = aDefaultCamera->Scale();
aCameraScale = aDefaultScale / myCamera->Scale();
}
else
{
aCameraScale = myCamera->Scale();
}
return aCameraScale;
}
void V3d_View::AxialScale(Standard_Real& Sx, Standard_Real& Sy, Standard_Real& Sz) const
{
gp_Pnt anAxialScale = myCamera->AxialScale();
Sx = anAxialScale.X();
Sy = anAxialScale.Y();
Sz = anAxialScale.Z();
}
void V3d_View::Center(Standard_Real& Xc, Standard_Real& Yc) const
{
gp_Pnt aCamProjShift = myCamera->ProjectionShift();
Xc = -aCamProjShift.X();
Yc = -aCamProjShift.Y();
}
void V3d_View::Size(Standard_Real& Width, Standard_Real& Height) const
{
gp_Pnt aViewDims = myCamera->ViewDimensions();
Width = aViewDims.X();
Height = aViewDims.Y();
}
Standard_Real V3d_View::ZSize() const
{
gp_Pnt aViewDims = myCamera->ViewDimensions();
return aViewDims.Z();
}
Standard_Integer V3d_View::MinMax(Standard_Real& Umin, Standard_Real& Vmin, Standard_Real& Umax, Standard_Real& Vmax) const
{
Standard_Real Wmin,Wmax,U,V,W ;
Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax ;
// CAL 6/11/98
Standard_Integer Nstruct = MyView->NumberOfDisplayedStructures() ;
if( Nstruct ) {
MyView->MinMaxValues(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax) ;
MyView->Projects(Xmin,Ymin,Zmin,Umin,Vmin,Wmin) ;
MyView->Projects(Xmax,Ymax,Zmax,Umax,Vmax,Wmax) ;
MyView->Projects(Xmin,Ymin,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymin,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymin,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmax,Ymax,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmin,Ymax,Zmax,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
MyView->Projects(Xmin,Ymax,Zmin,U,V,W) ;
Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
}
return Nstruct ;
}
Standard_Integer V3d_View::MinMax(Standard_Real& Xmin, Standard_Real& Ymin, Standard_Real& Zmin, Standard_Real& Xmax, Standard_Real& Ymax, Standard_Real& Zmax) const
{
// CAL 6/11/98
// Standard_Integer Nstruct = (MyView->DisplayedStructures())->Extent() ;
Standard_Integer Nstruct = MyView->NumberOfDisplayedStructures() ;
if( Nstruct ) {
MyView->MinMaxValues(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax) ;
}
return Nstruct ;
}
Standard_Integer V3d_View::Gravity(Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
{
Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax;
Standard_Integer Nstruct,Npoint ;
Graphic3d_MapOfStructure MySetOfStructures;
MyView->DisplayedStructures (MySetOfStructures);
Nstruct = MySetOfStructures.Extent() ;
Graphic3d_MapIteratorOfMapOfStructure MyIterator(MySetOfStructures) ;
Npoint = 0 ; X = Y = Z = 0. ;
for (; MyIterator.More(); MyIterator.Next())
{
const Handle(Graphic3d_Structure)& aStruct = MyIterator.Key();
if (!aStruct->IsEmpty())
{
aStruct->MinMaxValues (Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
// use camera projection to find gravity point
gp_Pnt aPnts[8] = {
gp_Pnt (Xmin, Ymin, Zmin), gp_Pnt (Xmin, Ymin, Zmax),
gp_Pnt (Xmin, Ymax, Zmin), gp_Pnt (Xmin, Ymax, Zmax),
gp_Pnt (Xmax, Ymin, Zmin), gp_Pnt (Xmax, Ymin, Zmax),
gp_Pnt (Xmax, Ymax, Zmin), gp_Pnt (Xmax, Ymax, Zmax) };
for (Standard_Integer aPntIt = 0; aPntIt < 8; ++aPntIt)
{
const gp_Pnt& aBndPnt = aPnts[aPntIt];
gp_Pnt aProjected = myCamera->Project (aBndPnt);
const Standard_Real& U = aProjected.X();
const Standard_Real& V = aProjected.Y();
if (Abs(U) <= 1.0 && Abs(V) <= 1.0)
{
Npoint++;
X += aBndPnt.X();
Y += aBndPnt.Y();
Z += aBndPnt.Z();
}
}
}
}
if( Npoint > 0 ) {
X /= Npoint ; Y /= Npoint ; Z /= Npoint ;
}
return Nstruct ;
}
void V3d_View::Eye(Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
{
gp_Pnt aCameraEye = myCamera->Eye();
X = aCameraEye.X();
Y = aCameraEye.Y();
Z = aCameraEye.Z();
}
void V3d_View::FocalReferencePoint(Standard_Real& X, Standard_Real& Y,Standard_Real& Z) const
{
Eye (X,Y,Z);
}
void V3d_View::ProjReferenceAxe(const Standard_Integer Xpix, const Standard_Integer Ypix, Standard_Real& XP, Standard_Real& YP, Standard_Real& ZP, Standard_Real& VX, Standard_Real& VY, Standard_Real& VZ) const
{
Standard_Real Xo,Yo,Zo;
Convert (Xpix, Ypix, XP, YP, ZP);
if ( Type() == V3d_PERSPECTIVE )
{
FocalReferencePoint (Xo,Yo,Zo);
VX = Xo - XP;
VY = Yo - YP;
VZ = Zo - ZP;
}
else
{
Proj (VX,VY,VZ);
}
}
Standard_Real V3d_View::Depth() const
{
return myCamera->Distance();
}
void V3d_View::Proj(Standard_Real& Dx, Standard_Real& Dy, Standard_Real& Dz) const
{
gp_Dir aCameraDir = myCamera->Direction().Reversed();
Dx = aCameraDir.X();
Dy = aCameraDir.Y();
Dz = aCameraDir.Z();
}
void V3d_View::At(Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
{
gp_Pnt aCameraCenter = myCamera->Center();
X = aCameraCenter.X();
Y = aCameraCenter.Y();
Z = aCameraCenter.Z();
}
void V3d_View::Up(Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz) const
{
gp_Dir aCameraUp = myCamera->Up();
Vx = aCameraUp.X();
Vy = aCameraUp.Y();
Vz = aCameraUp.Z();
}
Standard_Real V3d_View::Twist() const
{
Standard_Real Xup,Yup,Zup,Xpn,Ypn,Zpn,X0,Y0,Z0 ;
Standard_Real pvx,pvy,pvz,pvn,sca,angle ;
Graphic3d_Vector Xaxis,Yaxis,Zaxis ;
Standard_Boolean TheStatus ;
gp_Dir aReferencePlane (myCamera->Direction().Reversed());
gp_Dir anUp;
Proj(Xpn,Ypn,Zpn);
anUp = gp_Dir (0.,0.,1.) ;
TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
if( !TheStatus ) {
anUp = gp_Dir (0.,1.,0.) ;
TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
}
if( !TheStatus ) {
anUp = gp_Dir (1.,0.,0.) ;
TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
}
Yaxis.Coord(X0,Y0,Z0) ;
Up(Xup,Yup,Zup) ;
/* Compute Cross Vector From Up & Origin */
pvx = Y0*Zup - Z0*Yup ;
pvy = Z0*Xup - X0*Zup ;
pvz = X0*Yup - Y0*Xup ;
pvn = pvx*pvx + pvy*pvy + pvz*pvz ;
sca = X0*Xup + Y0*Yup + Z0*Zup ;
/* Compute Angle */
angle = Sqrt(pvn) ;
if( angle > 1. ) angle = 1. ;
else if( angle < -1. ) angle = -1. ;
angle = asin(angle) ;
if( sca < 0. ) angle = M_PI - angle ;
if( angle > 0. && angle < M_PI ) {
sca = pvx*Xpn + pvy*Ypn + pvz*Zpn ;
if( sca < 0. ) angle = DEUXPI - angle ;
}
return angle ;
}
V3d_TypeOfShadingModel V3d_View::ShadingModel() const
{
V3d_TypeOfShadingModel SM = (V3d_TypeOfShadingModel)MyViewContext.Model() ;
return SM ;
}
V3d_TypeOfSurfaceDetail V3d_View::SurfaceDetail() const
{
V3d_TypeOfSurfaceDetail SM = (V3d_TypeOfSurfaceDetail)MyViewContext.SurfaceDetail() ;
return SM ;
}
Handle_Graphic3d_TextureEnv V3d_View::TextureEnv() const
{
Handle(Graphic3d_TextureEnv) SM = MyViewContext.TextureEnv() ;
return SM ;
}
V3d_TypeOfVisualization V3d_View::Visualization() const
{
V3d_TypeOfVisualization V =
(V3d_TypeOfVisualization)MyViewContext.Visualization() ;
return V ;
}
Standard_Boolean V3d_View::Antialiasing() const
{
Standard_Boolean A = MyViewContext.AliasingIsOn() ;
return A ;
}
Handle(V3d_Viewer) V3d_View::Viewer() const
{
return MyViewer ;
}
Standard_Boolean V3d_View::IfWindow() const
{
Standard_Boolean TheStatus = MyView->IsDefined() ;
return TheStatus ;
}
Handle(Aspect_Window) V3d_View::Window() const
{
return MyWindow;
}
V3d_TypeOfView V3d_View::Type() const
{
return myCamera->IsOrthographic() ? V3d_ORTHOGRAPHIC : V3d_PERSPECTIVE;
}
void V3d_View::SetFocale( const Standard_Real focale )
{
if (myCamera->IsOrthographic())
{
return;
}
Standard_Real aFOVyRad = ATan (focale / (myCamera->Distance() * 2.0));
myCamera->SetFOVy (aFOVyRad * (360 / M_PI));
ImmediateUpdate();
}
Standard_Real V3d_View::Focale() const
{
if (myCamera->IsOrthographic())
{
return 0.0;
}
return myCamera->Distance() * 2.0 * Tan(myCamera->FOVy() * M_PI / 360.0);
}
void V3d_View::SetViewingVolume(const Standard_Real Left, const Standard_Real Right,
const Standard_Real Bottom, const Standard_Real Top,
const Standard_Real ZNear, const Standard_Real ZFar)
{
V3d_BadValue_Raise_if (ZNear >= ZFar, "V3d_View::SetVolume, bad distances");
myCamera->BeginUpdate();
myCamera->SetZFar (ZFar);
myCamera->SetZNear (ZNear);
myCamera->SetScale (Top - Bottom);
myCamera->SetAspect ((Right - Left) / (Top - Bottom));
gp_Pnt aCameraProjShift (-(Left + Right) / 2.0, -(Bottom + Top) / 2.0, 0.0);
myCamera->SetProjectionShift (aCameraProjShift);
if (myCamera->IsOrthographic())
{
myCamera->SetDistance (Abs (ZNear));
}
AutoZFit();
myCamera->EndUpdate();
ImmediateUpdate();
}
Handle(Visual3d_View) V3d_View::View() const
{
return MyView ;
}
Standard_Boolean V3d_View::ScreenAxis( const gp_Dir &Vpn, const gp_Dir &Vup, Graphic3d_Vector &Xaxe, Graphic3d_Vector &Yaxe, Graphic3d_Vector &Zaxe)
{
Standard_Real Xpn, Ypn, Zpn, Xup, Yup, Zup;
Standard_Real dx1, dy1, dz1, xx, yy, zz;
Xpn = Vpn.X(); Ypn = Vpn.Y(); Zpn = Vpn.Z();
Xup = Vup.X(); Yup = Vup.Y(); Zup = Vup.Z();
xx = Yup*Zpn - Zup*Ypn;
yy = Zup*Xpn - Xup*Zpn;
zz = Xup*Ypn - Yup*Xpn;
Xaxe.SetCoord (xx, yy, zz);
if (Xaxe.LengthZero()) return Standard_False;
Xaxe.Normalize();
Xaxe.Coord(dx1, dy1, dz1);
xx = Ypn*dz1 - Zpn*dy1;
yy = Zpn*dx1 - Xpn*dz1;
zz = Xpn*dy1 - Ypn*dx1;
Yaxe.SetCoord (xx, yy, zz) ;
if (Yaxe.LengthZero()) return Standard_False;
Yaxe.Normalize();
Zaxe.SetCoord (Xpn, Ypn, Zpn);
Zaxe.Normalize();
return Standard_True;
}
Graphic3d_Vertex V3d_View::TrsPoint( const Graphic3d_Vertex &P, const TColStd_Array2OfReal &Matrix )
{
Graphic3d_Vertex PP ;
Standard_Real X,Y,Z,XX,YY,ZZ ;
// CAL. S3892
Standard_Integer lr, ur, lc, uc;
lr = Matrix.LowerRow ();
ur = Matrix.UpperRow ();
lc = Matrix.LowerCol ();
uc = Matrix.UpperCol ();
if ((ur - lr + 1 != 4) || (uc - lc + 1 != 4) ) {
P.Coord(X,Y,Z) ;
PP.SetCoord(X,Y,Z) ;
return PP ;
}
P.Coord(X,Y,Z) ;
XX = (Matrix(lr,lc+3) + X*Matrix(lr,lc) + Y*Matrix(lr,lc+1)+
Z*Matrix(lr,lc+2))/Matrix(lr+3,lc+3) ;
YY = (Matrix(lr+1,lc+3) + X*Matrix(lr+1,lc) + Y*Matrix(lr+1,lc+1) +
Z*Matrix(lr+1,lc+2))/Matrix(lr+3,lc+3) ;
ZZ = (Matrix(lr+2,lc+3) + X*Matrix(lr+2,lc) + Y*Matrix(lr+2,lc+1) +
Z*Matrix(lr+2,lc+2))/Matrix(lr+3,lc+3) ;
PP.SetCoord(XX,YY,ZZ) ;
return PP ;
}
void V3d_View::Pan(const Standard_Integer Dx, const Standard_Integer Dy,const Quantity_Factor aZoomFactor)
{
Panning (Convert(Dx), Convert(Dy), aZoomFactor, Standard_True);
}
void V3d_View::Zoom (const Standard_Integer X1,
const Standard_Integer Y1,
const Standard_Integer X2,
const Standard_Integer Y2)
{
Standard_Real dx = Standard_Real (X2-X1);
Standard_Real dy = Standard_Real (Y2-Y1);
if ( dx != 0. || dy != 0. ) {
Standard_Real dzoom = Sqrt(dx*dx + dy*dy) / 100. + 1;
dzoom = (dx > 0) ? dzoom : 1./dzoom;
SetZoom(dzoom, Standard_True);
}
}
void V3d_View::Zoom (const Standard_Integer X1,
const Standard_Integer Y1)
{
Standard_Real x,y;
Center(x,y);
Standard_Integer ix,iy;
Convert(x,y,ix,iy);
Zoom(ix,iy,X1,Y1);
}
// Defines the point (pixel) of zooming (for the method ZoomAtPoint()).
void V3d_View::StartZoomAtPoint(const Standard_Integer xpix, const Standard_Integer ypix)
{
MyZoomAtPointX = xpix;
MyZoomAtPointY = ypix;
}
// Zooms the model at a pixel defined by the method StartZoomAtPoint().
void V3d_View::ZoomAtPoint(const Standard_Integer mouseStartX,
const Standard_Integer mouseStartY,
const Standard_Integer mouseEndX,
const Standard_Integer mouseEndY)
{
Standard_Boolean update;
V3d_Coordinate X0, Y0, XS, YS;
// Forbid any update.
update = SetImmediateUpdate(Standard_False);
// Get center point
Center(X0, Y0);
// Pan the point to the center of window.
Convert(MyZoomAtPointX, MyZoomAtPointY, XS, YS);
Panning(X0-XS, Y0-YS);
// Zoom
Standard_Real d = Standard_Real ((mouseEndX + mouseEndY) - (mouseStartX + mouseStartY));
Standard_Real dzoom = fabs(d) / 100.0 + 1.0;
dzoom = (d > 0) ? dzoom : 1.0 / dzoom;
V3d_BadValue_Raise_if( dzoom <= 0.,"V3d_View::ZoomAtPoint, bad coefficient");
Standard_Real aViewWidth = myCamera->ViewDimensions().X();
Standard_Real aViewHeight = myCamera->ViewDimensions().Y();
// Ensure that zoom will not be too small or too big.
Standard_Real coef = dzoom;
if (aViewWidth < coef * Precision::Confusion())
{
coef = aViewWidth / Precision::Confusion();
}
else if (aViewWidth > coef * 1e12)
{
coef = aViewWidth / 1e12;
}
if (aViewHeight < coef * Precision::Confusion())
{
coef = aViewHeight / Precision::Confusion();
}
else if (aViewHeight > coef * 1e12)
{
coef = aViewHeight / 1e12;
}
V3d_Coordinate Dxv = (XS - X0) / coef;
V3d_Coordinate Dyv = (YS - Y0) / coef;
myCamera->SetScale (myCamera->Scale() / coef);
PanCamera (-Dxv, -Dyv);
AutoZFit();
// Update the view.
SetImmediateUpdate(update);
ImmediateUpdate();
}
void V3d_View::AxialScale (const Standard_Integer Dx,
const Standard_Integer Dy,
const V3d_TypeOfAxe Axis)
{
if( Dx != 0. || Dy != 0. ) {
Standard_Real Sx, Sy, Sz;
AxialScale( Sx, Sy, Sz );
Standard_Real dscale = Sqrt(Dx*Dx + Dy*Dy) / 100. + 1;
dscale = (Dx > 0) ? dscale : 1./dscale;
if( Axis == V3d_X ) Sx = dscale;
if( Axis == V3d_Y ) Sy = dscale;
if( Axis == V3d_Z ) Sz = dscale;
SetAxialScale( Sx, Sy, Sz );
}
}
void V3d_View::FitAll(const Handle(Aspect_Window)& aWindow,
const Standard_Real Xmin,
const Standard_Real Ymin,
const Standard_Real Xmax,
const Standard_Real Ymax)
{
// normalize view coordinates
Standard_Integer aWinWidth, aWinHeight;
aWindow->Size (aWinWidth, aWinHeight);
// compute camera panning
gp_Vec aPanVec ((Xmin + Xmax) * 0.5, (Ymin + Ymax) * 0.5, 0.0);
// compute section size
gp_Pnt aViewBotLeft (Xmin, Ymin, 0.0);
gp_Pnt aViewTopRight (Xmax, Ymax, 0.0);
Standard_Real aUSize = Abs (Xmax - Xmin);
Standard_Real aVSize = Abs (Ymax - Ymin);
myCamera->BeginUpdate();
myCamera->SetProjectionShift (gp_Pnt (0.0, 0.0, 0.0));
PanCamera (aPanVec.X(), aPanVec.Y());
ZoomCamera (aUSize, aVSize);
myCamera->EndUpdate();
AutoZFit();
Update();
}
#ifdef IMP250900
static Standard_Boolean zRotation = Standard_False;
#endif
void V3d_View::StartRotation(const Standard_Integer X,
const Standard_Integer Y,
const Quantity_Ratio zRotationThreshold)
{
sx = X; sy = Y;
Standard_Real x,y;
Size(x,y);
rx = Standard_Real(Convert(x));
ry = Standard_Real(Convert(y));
Gravity(gx,gy,gz);
Rotate(0.,0.,0.,gx,gy,gz,Standard_True);
#ifdef IMP250900
zRotation = Standard_False;
if( zRotationThreshold > 0. ) {
Standard_Real dx = Abs(sx - rx/2.);
Standard_Real dy = Abs(sy - ry/2.);
// if( dx > rx/3. || dy > ry/3. ) zRotation = Standard_True;
Standard_Real dd = zRotationThreshold * (rx + ry)/2.;
if( dx > dd || dy > dd ) zRotation = Standard_True;
}
#endif
}
void V3d_View::Rotation(const Standard_Integer X,
const Standard_Integer Y)
{
#ifdef IMP210600
if( rx == 0. || ry == 0. ) {
StartRotation(X,Y);
return;
}
#endif
#ifdef IMP250900
Standard_Real dx=0.,dy=0.,dz=0.;
if( zRotation ) {
dz = atan2(Standard_Real(X)-rx/2., ry/2.-Standard_Real(Y)) -
atan2(sx-rx/2.,ry/2.-sy);
} else {
dx = (Standard_Real(X) - sx) * M_PI / rx;
dy = (sy - Standard_Real(Y)) * M_PI / ry;
}
Rotate(dx, dy, dz, gx, gy, gz, Standard_False);
#else
Standard_Real dx = (Standard_Real(X - sx)) * M_PI;
Standard_Real dy = (Standard_Real(sy - Y)) * M_PI;
Rotate(dx/rx, dy/ry, 0., gx, gy, gz, Standard_False);
#endif
#ifdef IMP020300
if( !myImmediateUpdate ) Update();
#else
myImmediateUpdate = Standard_False;
Rotate(dx/rx, dy/ry, 0., gx, gy, gz, Standard_False);
ZFitAll (Zmargin); //Don't do that, perf improvment
myImmediateUpdate = Standard_True;
ImmediateUpdate();
#endif
}
void V3d_View :: SetComputedMode ( const Standard_Boolean aMode )
{
if( aMode ) {
if( myComputedMode ) {
MyView -> SetComputedMode ( Standard_True );
Update ();
}
} else {
MyView -> SetComputedMode ( Standard_False );
Update ();
}
}
Standard_Boolean V3d_View :: ComputedMode () const
{
return MyView -> ComputedMode ();
}
void V3d_View :: SetBackFacingModel (const V3d_TypeOfBackfacingModel aModel)
{
MyView -> SetBackFacingModel ( Visual3d_TypeOfBackfacingModel(aModel) );
Redraw();
}
V3d_TypeOfBackfacingModel V3d_View :: BackFacingModel () const
{
return V3d_TypeOfBackfacingModel(MyView -> BackFacingModel ());
}
Standard_Boolean V3d_View::TransientManagerBeginDraw(const Standard_Boolean DoubleBuffer,const Standard_Boolean RetainMode) const
{
return Visual3d_TransientManager::BeginDraw(MyView,DoubleBuffer,RetainMode);
}
void V3d_View::TransientManagerClearDraw() const
{
Visual3d_TransientManager::ClearDraw(MyView);
}
Standard_Boolean V3d_View::TransientManagerBeginAddDraw() const
{
return Visual3d_TransientManager::BeginAddDraw(MyView);
}
void V3d_View::Init()
{
myComputedMode = MyViewer->ComputedMode();
if( !myComputedMode || !MyViewer->DefaultComputedMode() ) {
SetComputedMode(Standard_False);
}
}
void V3d_View::SetPlotter(const Handle(Graphic3d_Plotter)& aPlotter)
{
MyPlotter = aPlotter;
}
void V3d_View::Plot()
{
V3d_BadValue_Raise_if( !MyPlotter.IsNull(), "view has no plotter");
MyView->Plot(MyPlotter);
}
#include <Aspect.hxx>
#include <Visual3d_Layer.hxx>
////////////////////////////////////////////////////////////////
Standard_Boolean V3d_View::Dump (const Standard_CString theFile,
const Graphic3d_BufferType& theBufferType)
{
Standard_Integer aWinWidth, aWinHeight;
MyWindow->Size (aWinWidth, aWinHeight);
Image_AlienPixMap anImage;
return ToPixMap (anImage, aWinWidth, aWinHeight, theBufferType) && anImage.Save (theFile);
}
////////////////////////////////////////////////////////////////
Standard_Boolean V3d_View::ToPixMap (Image_PixMap& theImage,
const Standard_Integer theWidth,
const Standard_Integer theHeight,
const Graphic3d_BufferType& theBufferType,
const Standard_Boolean theIsForceCentred,
const V3d_StereoDumpOptions theStereoOptions)
{
Graphic3d_CView* cView = (Graphic3d_CView* )MyView->CView();
// always prefer hardware accelerated offscreen buffer
Graphic3d_PtrFrameBuffer aFBOPtr = NULL;
Graphic3d_PtrFrameBuffer aPrevFBOPtr = (Graphic3d_PtrFrameBuffer )cView->ptrFBO;
Standard_Integer aFBOVPSizeX (theWidth), aFBOVPSizeY (theHeight), aFBOSizeXMax (0), aFBOSizeYMax (0);
Standard_Integer aPrevFBOVPSizeX (0), aPrevFBOVPSizeY (0), aPrevFBOSizeXMax (0), aPrevFBOSizeYMax (0);
if (aPrevFBOPtr != NULL)
{
MyView->FBOGetDimensions (aPrevFBOPtr,
aPrevFBOVPSizeX, aPrevFBOVPSizeY,
aPrevFBOSizeXMax, aPrevFBOSizeYMax);
if (aFBOVPSizeX <= aPrevFBOSizeXMax && aFBOVPSizeY <= aPrevFBOSizeYMax)
{
MyView->FBOChangeViewport (aPrevFBOPtr, aFBOVPSizeX, aFBOVPSizeY);
aFBOPtr = aPrevFBOPtr;
}
}
if (aFBOPtr == NULL)
{
// Try to create hardware accelerated buffer
aFBOPtr = MyView->FBOCreate (aFBOVPSizeX, aFBOVPSizeY);
if (aFBOPtr != NULL)
{
MyView->FBOGetDimensions (aFBOPtr,
aFBOVPSizeX, aFBOVPSizeY,
aFBOSizeXMax, aFBOSizeYMax);
// reduce viewport in case of hardware limits
if (aFBOVPSizeX > aFBOSizeXMax) aFBOVPSizeX = aFBOSizeXMax;
if (aFBOVPSizeY > aFBOSizeYMax) aFBOVPSizeY = aFBOSizeYMax;
MyView->FBOChangeViewport (aFBOPtr, aFBOVPSizeX, aFBOVPSizeY);
}
}
cView->ptrFBO = aFBOPtr;
// If hardware accelerated buffer - try to use onscreen buffer
// Results may be bad!
if (aFBOPtr == NULL)
{
// retrieve window sizes
Standard_Integer aWinWidth, aWinHeight;
MyWindow->Size (aWinWidth, aWinHeight);
// technically we can reduce existing viewport...
// but currently allow only dumping the window itself
if (aFBOVPSizeX != aWinWidth || aFBOVPSizeY != aWinHeight)
{
return Standard_False;
}
}
Handle(Graphic3d_Camera) aStoreMapping = new Graphic3d_Camera();
aStoreMapping->Copy (myCamera);
Standard_Real Umin, Vmin, Umax, Vmax;
if (myCamera->IsStereo())
{
switch (theStereoOptions)
{
case V3d_SDO_MONO :
myCamera->SetProjectionType (Graphic3d_Camera::Projection_Perspective);
break;
case V3d_SDO_LEFT_EYE :
myCamera->SetProjectionType (Graphic3d_Camera::Projection_MonoLeftEye);
break;
case V3d_SDO_RIGHT_EYE :
myCamera->SetProjectionType (Graphic3d_Camera::Projection_MonoRightEye);
break;
}
}
if (theIsForceCentred)
{
Standard_Real PUmin, PVmin, PUmax, PVmax;
myCamera->WindowLimit (PUmin, PVmin, PUmax, PVmax);
// calculate expansion
Umin = PUmin; Vmin = PVmin; Umax = PUmax; Vmax = PVmax;
Standard_Real oldWidth = (PUmax - PUmin), oldHeight = (PVmax - PVmin);
Standard_Real newWidth = (oldHeight * aFBOVPSizeX) / aFBOVPSizeY;
if (newWidth < oldWidth)
{
Standard_Real newHeight = (oldWidth * aFBOVPSizeY) / aFBOVPSizeX;
// Expand height
Standard_Real delta = 0.5 * (newHeight - oldHeight);
Vmin = PVmin - delta;
Vmax = PVmax + delta;
}
else
{
// Expand width
Standard_Real delta = 0.5 * (newWidth - oldWidth);
Umin = PUmin - delta;
Umax = PUmax + delta;
}
FitAll (Umin, Vmin, Umax, Vmax);
}
//workaround for rendering list of Over and Under Layers
if (!MyLayerMgr.IsNull())
{
MyLayerMgr->Compute();
}
// render immediate structures into back buffer rather than front
Handle(Graphic3d_GraphicDriver) aDriver = Handle(Graphic3d_GraphicDriver)::DownCast (MyView->GraphicDriver());
const Standard_Boolean aPrevImmediateMode = aDriver.IsNull() ? Standard_True : aDriver->SetImmediateModeDrawToFront (*cView, Standard_False);
Redraw();
if (!aDriver.IsNull())
{
aDriver->SetImmediateModeDrawToFront (*cView, aPrevImmediateMode);
}
myCamera->Copy (aStoreMapping);
Standard_Boolean isSuccess = Standard_True;
// allocate image buffer for dumping
if (theImage.IsEmpty()
|| (Standard_Size )aFBOVPSizeX != theImage.SizeX()
|| (Standard_Size )aFBOVPSizeY != theImage.SizeY())
{
bool isBigEndian = Image_PixMap::IsBigEndianHost();
Image_PixMap::ImgFormat aFormat = Image_PixMap::ImgUNKNOWN;
switch (theBufferType)
{
case Graphic3d_BT_RGB: aFormat = isBigEndian ? Image_PixMap::ImgRGB : Image_PixMap::ImgBGR; break;
case Graphic3d_BT_RGBA: aFormat = isBigEndian ? Image_PixMap::ImgRGBA : Image_PixMap::ImgBGRA; break;
case Graphic3d_BT_Depth: aFormat = Image_PixMap::ImgGrayF; break;
}
isSuccess = isSuccess && theImage.InitZero (aFormat, aFBOVPSizeX, aFBOVPSizeY);
}
isSuccess = isSuccess && MyView->BufferDump (theImage, theBufferType);
// FBO now useless, free resources
if (aFBOPtr != aPrevFBOPtr)
{
MyView->FBORelease (aFBOPtr);
}
else if (aPrevFBOPtr != NULL)
{
MyView->FBOChangeViewport (aPrevFBOPtr, aPrevFBOVPSizeX, aPrevFBOVPSizeY);
}
cView->ptrFBO = aPrevFBOPtr;
return isSuccess;
}
void V3d_View::ImmediateUpdate() const
{
if (myImmediateUpdate) Update();
}
Standard_Boolean V3d_View::SetImmediateUpdate (const Standard_Boolean theImmediateUpdate)
{
Standard_Boolean aPreviousMode = myImmediateUpdate;
myImmediateUpdate = theImmediateUpdate;
return aPreviousMode;
}
// =======================================================================
// function : SetCamera
// purpose :
// =======================================================================
void V3d_View::SetCamera (const Handle(Graphic3d_Camera)& theCamera)
{
myCamera = theCamera;
MyView->SetCamera (theCamera);
}
// =======================================================================
// function : GetCamera
// purpose :
// =======================================================================
Handle(Graphic3d_Camera) V3d_View::Camera() const
{
return myCamera;
}
// =======================================================================
// function : FitCamera
// purpose :
// =======================================================================
void V3d_View::FitCamera (const Standard_Real theXmin,
const Standard_Real theYmin,
const Standard_Real theZmin,
const Standard_Real theXmax,
const Standard_Real theYmax,
const Standard_Real theZmax)
{
if (myCamera.IsNull())
return;
// check bounding box for validness
Standard_Real aLim = (ShortRealLast() - 1.0);
if (Abs (theXmin) > aLim || Abs (theYmin) > aLim || Abs (theZmin) > aLim ||
Abs (theXmax) > aLim || Abs (theYmax) > aLim || Abs (theZmax) > aLim)
return;
// place camera center at the geometrical center
// of the passed bounding box
gp_Pnt aCenter ((theXmin + theXmax) * 0.5,
(theYmin + theYmax) * 0.5,
(theZmin + theZmax) * 0.5);
// adapt bound points
gp_Pnt aPnts[8] =
{ gp_Pnt (theXmin, theYmin, theZmin),
gp_Pnt (theXmin, theYmin, theZmax),
gp_Pnt (theXmin, theYmax, theZmin),
gp_Pnt (theXmin, theYmax, theZmax),
gp_Pnt (theXmax, theYmin, theZmin),
gp_Pnt (theXmax, theYmin, theZmax),
gp_Pnt (theXmax, theYmax, theZmin),
gp_Pnt (theXmax, theYmax, theZmax) };
Standard_Real aViewMinX = (RealLast() - 1);
Standard_Real aViewMinY = (RealLast() - 1);
Standard_Real aViewMinZ = (RealLast() - 1);
Standard_Real aViewMaxX = (RealFirst() + 1);
Standard_Real aViewMaxY = (RealFirst() + 1);
Standard_Real aViewMaxZ = (RealFirst() + 1);
// find out minimum and maximum values of bounding box
// converted to view space. the limits point out a rectangular
// section parallel to the screen that camera should zoom in.
for (Standard_Integer aPntIt = 0; aPntIt < 8; ++aPntIt)
{
gp_Pnt aView = myCamera->ConvertWorld2View (aPnts[aPntIt]);
aViewMinX = Min (aViewMinX, aView.X());
aViewMinY = Min (aViewMinY, aView.Y());
aViewMaxX = Max (aViewMaxX, aView.X());
aViewMaxY = Max (aViewMaxY, aView.Y());
aViewMinZ = Min (aViewMinZ, aView.Z());
aViewMaxZ = Max (aViewMaxZ, aView.Z());
}
// evaluate section size for x1 zoom.
Standard_Real aSectU = (aViewMaxX - aViewMinX);
Standard_Real aSectV = (aViewMaxY - aViewMinY);
// zoom camera to front plane of bounding box. the camera
// is set up at the center of bbox, so the depth is half
// space of it in view coordinate space.
Standard_Real aSectDepth = (aViewMaxZ - aViewMinZ) * 0.5;
// re-compute Eye position
gp_Vec aBck = gp_Vec (myCamera->Center(), myCamera->Eye());
gp_Pnt aEye = aCenter.Translated (aBck);
// start camera updates
myCamera->BeginUpdate();
if (myCamera->IsOrthographic())
{
Standard_Real anX = (aViewMaxX + aViewMinX) * 0.5;
Standard_Real anY = (aViewMaxY + aViewMinY) * 0.5;
myCamera->SetProjectionShift (gp_Pnt (-anX, -anY, 0.0));
}
else
{
myCamera->SetProjectionShift (gp_Pnt (0.0, 0.0, 0.0));
myCamera->SetCenter (aCenter);
myCamera->SetEye (aEye);
}
// zoom camera to fit in the bounding box.
ZoomCamera (aSectU, aSectV, aSectDepth);
// re-evaluate camera
myCamera->EndUpdate();
}
// =======================================================================
// function : ZoomCamera
// purpose :
// =======================================================================
void V3d_View::ZoomCamera (const Standard_Real theUSize,
const Standard_Real theVSize,
const Standard_Real theZDepth)
{
if (myCamera.IsNull())
return;
// compute maximum section size along both directions.
Standard_Real anAspect = myCamera->Aspect();
Standard_Real aSize = Max (theUSize / anAspect, theVSize);
myCamera->BeginUpdate();
myCamera->SetScale (aSize);
if (!myCamera->IsOrthographic())
{
myCamera->SetDistance (myCamera->Distance() + theZDepth);
}
AutoZFit();
myCamera->EndUpdate();
}
// =======================================================================
// function : PanCamera
// purpose : panning is fun
// =======================================================================
void V3d_View::PanCamera (const Standard_Real theU,
const Standard_Real theV)
{
if (myCamera.IsNull())
return;
if (myCamera->IsOrthographic())
{
// Projection based panning for compatibility.
myCamera->SetProjectionShift (myCamera->ProjectionShift().
Translated (gp_Vec (-theU, -theV, 0.0)));
}
else
{
gp_Vec anUp = myCamera->Up();
gp_Vec aSide = myCamera->Direction().Crossed (anUp);
gp_Vec aPanU = aSide.Scaled (theU);
gp_Vec aPanV = anUp.Scaled (theV);
gp_Pnt aPannedEye (myCamera->Eye());
gp_Pnt aPannedCenter (myCamera->Center());
aPannedEye.Translate (aPanU);
aPannedEye.Translate (aPanV);
aPannedCenter.Translate (aPanU);
aPannedCenter.Translate (aPanV);
myCamera->BeginUpdate();
myCamera->SetEye (aPannedEye);
myCamera->SetCenter (aPannedCenter);
myCamera->EndUpdate();
}
AutoZFit();
}
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