G4VisCommandSceneAddLogo Class Reference

#include <G4VisCommandsSceneAdd.hh>

Inheritance diagram for G4VisCommandSceneAddLogo:

Public Member Functions
	G4VisCommandSceneAddLogo ()
virtual	~G4VisCommandSceneAddLogo ()
G4String	GetCurrentValue (G4UIcommand *command)
void	SetNewValue (G4UIcommand *command, G4String newValue)
Public Member Functions inherited from G4VVisCommandScene
	G4VVisCommandScene ()
virtual	~G4VVisCommandScene ()
Public Member Functions inherited from G4VVisCommand
	G4VVisCommand ()
virtual	~G4VVisCommand ()
Public Member Functions inherited from G4UImessenger
	G4UImessenger ()
	G4UImessenger (const G4String &path, const G4String &dsc, G4bool commandsToBeBroadcasted=true)
virtual	~G4UImessenger ()
G4bool	operator== (const G4UImessenger &messenger) const

Additional Inherited Members
Static Public Member Functions inherited from G4VVisCommand
static void	SetVisManager (G4VisManager *)
Protected Member Functions inherited from G4VVisCommandScene
G4String	CurrentSceneName ()
Protected Member Functions inherited from G4VVisCommand
void	UpdateVisManagerScene (const G4String &sceneName="")
Protected Member Functions inherited from G4UImessenger
G4String	ItoS (G4int i)
G4String	DtoS (G4double a)
G4String	BtoS (G4bool b)
G4int	StoI (G4String s)
G4double	StoD (G4String s)
G4bool	StoB (G4String s)
void	AddUIcommand (G4UIcommand *newCommand)
void	CreateDirectory (const G4String &path, const G4String &dsc, G4bool commandsToBeBroadcasted=true)
template<typename T >
T *	CreateCommand (const G4String &cname, const G4String &dsc)
Static Protected Member Functions inherited from G4VVisCommand
static G4String	ConvertToString (G4double x, G4double y, const char *unitName)
static void	ConvertToDoublePair (const G4String &paramString, G4double &xval, G4double &yval)
Protected Attributes inherited from G4UImessenger
G4UIdirectory *	baseDir
G4String	baseDirName
Static Protected Attributes inherited from G4VVisCommand
static G4VisManager *	fpVisManager = 0
static G4Colour	fCurrentColour = G4Colour::White()
static G4Colour	fCurrentTextColour = G4Colour::Blue()
static G4Text::Layout	fCurrentTextLayout = G4Text::left
static G4double	fCurrentLineWidth = 1.
static G4ModelingParameters::PVNameCopyNoPath	fCurrentTouchablePath

Detailed Description

Definition at line 254 of file G4VisCommandsSceneAdd.hh.

Constructor & Destructor Documentation

G4VisCommandSceneAddLogo::G4VisCommandSceneAddLogo

(

)

Definition at line 1072 of file G4VisCommandsSceneAdd.cc.

References G4UIparameter::SetDefaultValue(), G4UIparameter::SetGuidance(), and G4UIcommand::SetParameter().

                                                    {
  G4bool omitable;
  fpCommand = new G4UIcommand ("/vis/scene/add/logo", this);
  fpCommand -> SetGuidance ("Adds a G4 logo to the current scene.");
  fpCommand -> SetGuidance
  ("If \"unit\" is \"auto\", height is roughly one tenth of scene extent.");
  fpCommand -> SetGuidance
  ("\"direction\" is that of outward-facing normal to front face of logo."
   "\nIf \"direction\" is \"auto\", logo faces the user in the current viewer.");
  fpCommand -> SetGuidance
  ("\nIf \"placement\" is \"auto\", logo is placed at bottom right of screen"
   "\n  when viewed from logo direction.");
  G4UIparameter* parameter;
  parameter = new G4UIparameter ("height", 'd', omitable = true);
  parameter->SetDefaultValue (1.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("unit", 's', omitable = true);
  parameter->SetDefaultValue ("auto");
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("direction", 's', omitable = true);
  parameter->SetGuidance ("auto|[-]x|[-]y|[-]z");
  parameter->SetDefaultValue ("auto");
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("red", 'd', omitable = true);
  parameter->SetDefaultValue (0.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("green", 'd', omitable = true);
  parameter->SetDefaultValue (1.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("blue", 'd', omitable = true);
  parameter->SetDefaultValue (0.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("placement", 's', omitable = true);
  parameter -> SetParameterCandidates("auto manual");
  parameter->SetDefaultValue  ("auto");
  fpCommand->SetParameter     (parameter);
  parameter =  new G4UIparameter ("xmid", 'd', omitable = true);
  parameter->SetDefaultValue (0.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("ymid", 'd', omitable = true);
  parameter->SetDefaultValue (0.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("zmid", 'd', omitable = true);
  parameter->SetDefaultValue (0.);
  fpCommand->SetParameter (parameter);
  parameter =  new G4UIparameter ("unit", 's', omitable = true);
  parameter->SetDefaultValue ("m");
  fpCommand->SetParameter (parameter);
}

G4VisCommandSceneAddLogo::~G4VisCommandSceneAddLogo ( )

virtual

Definition at line 1122 of file G4VisCommandsSceneAdd.cc.

                                                     {
  delete fpCommand;
}

Member Function Documentation

G4String G4VisCommandSceneAddLogo::GetCurrentValue ( G4UIcommand *  command )

virtual

Reimplemented from G4UImessenger.

Definition at line 1126 of file G4VisCommandsSceneAdd.cc.

                                                                {
  return "";
}

void G4VisCommandSceneAddLogo::SetNewValue ( G4UIcommand *  command, G4String  newValue  )

virtual

Reimplemented from G4UImessenger.

Definition at line 1130 of file G4VisCommandsSceneAdd.cc.

References blue, G4VisManager::confirmations, G4VisManager::errors, G4VVisCommand::fpVisManager, G4cout, G4endl, G4VisManager::GetCurrentScene(), G4VisManager::GetCurrentViewer(), G4Scene::GetExtent(), G4VisExtent::GetExtentRadius(), HepGeom::Transform3D::getRotation(), HepGeom::Transform3D::getTranslation(), G4VisManager::GetVerbosity(), G4VViewer::GetViewParameters(), G4ViewParameters::GetViewpointDirection(), G4VisExtent::GetXmax(), G4VisExtent::GetXmin(), G4VisExtent::GetYmax(), G4VisExtent::GetYmin(), G4VisExtent::GetZmax(), G4VisExtent::GetZmin(), python.hepunit::halfpi, G4VisManager::parameters, python.hepunit::pi, red, G4VModel::SetExtent(), G4VisAttributes::SetForceSolid(), G4VModel::SetGlobalDescription(), G4VModel::SetGlobalTag(), G4VModel::SetTransformation(), G4VModel::SetType(), G4VVisCommand::UpdateVisManagerScene(), G4UIcommand::ValueOf(), G4VisManager::warnings, HepGeom::BasicVector3D< T >::x(), HepGeom::BasicVector3D< T >::y(), and HepGeom::BasicVector3D< T >::z().

                                                                           {

  G4VisManager::Verbosity verbosity = fpVisManager->GetVerbosity();
  G4bool warn = verbosity >= G4VisManager::warnings;

  G4Scene* pScene = fpVisManager->GetCurrentScene();
  if (!pScene) {
    if (verbosity >= G4VisManager::errors) {
      G4cout << "ERROR: No current scene.  Please create one." << G4endl;
    }
    return;
  }

  G4VViewer* pViewer = fpVisManager->GetCurrentViewer();
  if (!pViewer) {
    if (verbosity >= G4VisManager::errors) {
      G4cout << 
    "ERROR: G4VisCommandSceneAddLogo::SetNewValue: no viewer."
    "\n  Auto direction needs a viewer."
         << G4endl;
    }
    return;
  }

  G4double userHeight, red, green, blue, xmid, ymid, zmid;
  G4String userHeightUnit, direction, auto_manual, positionUnit;
  std::istringstream is (newValue);
  is >> userHeight >> userHeightUnit >> direction
     >> red >> green >> blue
     >> auto_manual
     >> xmid >> ymid >> zmid >> positionUnit;

  G4double height = userHeight;
  const G4VisExtent& sceneExtent = pScene->GetExtent();  // Existing extent.
  if (userHeightUnit == "auto") {
    height *= 0.2 * sceneExtent.GetExtentRadius();
  } else {
    height *= G4UIcommand::ValueOf(userHeightUnit);
  }

  G4double unit = G4UIcommand::ValueOf(positionUnit);
  xmid *= unit; ymid *= unit; zmid *= unit;

  Direction logoDirection = X;  // Initialise to keep some compilers happy.
  if (direction == "auto") {
    // Take cue from viewer
    const G4Vector3D& vp =
      pViewer->GetViewParameters().GetViewpointDirection();
    if (vp.x() > vp.y() && vp.x() > vp.z()) logoDirection = X;
    else if (vp.x() < vp.y() && vp.x() < vp.z()) logoDirection = minusX;
    else if (vp.y() > vp.x() && vp.y() > vp.z()) logoDirection = Y;
    else if (vp.y() < vp.x() && vp.y() < vp.z()) logoDirection = minusY;
    else if (vp.z() > vp.x() && vp.z() > vp.y()) logoDirection = Z;
    else if (vp.z() < vp.x() && vp.z() < vp.y()) logoDirection = minusZ;
  }
  else if (direction(0) == 'x') logoDirection = X;
  else if (direction(0) == 'y') logoDirection = Y;
  else if (direction(0) == 'z') logoDirection = Z;
  else if (direction(0) == '-') {
    if (direction(1) == 'x') logoDirection = minusX;
    else if (direction(1) == 'y') logoDirection = minusY;
    else if (direction(1) == 'z') logoDirection = minusZ;
  } else {
    if (verbosity >= G4VisManager::errors) {
      G4cout << "ERROR: Unrecogniseed direction: \""
         << direction << "\"." << G4endl;
      return;
    }
  }

  G4bool autoPlacing = false; if (auto_manual == "auto") autoPlacing = true;
  // Parameters read and interpreted.

  // Current scene extent
  const G4double xmin = sceneExtent.GetXmin();
  const G4double xmax = sceneExtent.GetXmax();
  const G4double ymin = sceneExtent.GetYmin();
  const G4double ymax = sceneExtent.GetYmax();
  const G4double zmin = sceneExtent.GetZmin();
  const G4double zmax = sceneExtent.GetZmax();

  // Test existing extent and issue warnings...
  G4bool worried = false;
  if (sceneExtent.GetExtentRadius() == 0) {
    worried = true;
    if (verbosity >= G4VisManager::warnings) {
      G4cout <<
    "WARNING: Existing scene does not yet have any extent."
    "\n  Maybe you have not yet added any geometrical object."
         << G4endl;
    }
  }

  // Useful constants, etc...
  const G4double halfHeight(height / 2.);
  const G4double comfort(0.01);  // 0.15 seems too big.  0.05 might be better.
  const G4double freeHeightFraction (1. + 2. * comfort);

  // Test existing scene for room...
  G4bool room = true;
  switch (logoDirection) {
  case X:
  case minusX:
    if (freeHeightFraction * (xmax - xmin) < height) room = false; break;
  case Y:
  case minusY:
    if (freeHeightFraction * (ymax - ymin) < height) room = false; break;
  case Z:
  case minusZ:
    if (freeHeightFraction * (zmax - zmin) < height) room = false; break;
  }
  if (!room) {
    worried = true;
    if (verbosity >= G4VisManager::warnings) {
      G4cout <<
    "WARNING: Not enough room in existing scene.  Maybe logo is too large."
         << G4endl;
    }
  }
  if (worried) {
    if (verbosity >= G4VisManager::warnings) {
      G4cout <<
    "WARNING: The logo you have asked for is bigger than the existing"
    "\n  scene.  Maybe you have added it too soon.  It is recommended that"
    "\n  you add the logo last so that it can be correctly auto-positioned"
    "\n  so as not to be obscured by any existing object and so that the"
    "\n  view parameters can be correctly recalculated."
         << G4endl;
    }
  }

  G4double sxmid(xmid), symid(ymid), szmid(zmid);
  if (autoPlacing) {
    // Aim to place at bottom right of screen when viewed from logoDirection.
    // Give some comfort zone.
    const G4double xComfort = comfort * (xmax - xmin);
    const G4double yComfort = comfort * (ymax - ymin);
    const G4double zComfort = comfort * (zmax - zmin);
    switch (logoDirection) {
    case X:  // y-axis up, z-axis to left?
      sxmid = xmax + halfHeight + xComfort;
      symid = ymin - yComfort;
      szmid = zmin - zComfort;
      break;
    case minusX:  // y-axis up, z-axis to right?
      sxmid = xmin - halfHeight - xComfort;
      symid = ymin - yComfort;
      szmid = zmax + zComfort;
      break;
    case Y:  // z-axis up, x-axis to left?
      sxmid = xmin - xComfort;
      symid = ymax + halfHeight + yComfort;
      szmid = zmin - zComfort;
      break;
    case minusY:  // z-axis up, x-axis to right?
      sxmid = xmax + xComfort;
      symid = ymin - halfHeight - yComfort;
      szmid = zmin - zComfort;
      break;
    case Z:  // y-axis up, x-axis to right?
      sxmid = xmax + xComfort;
      symid = ymin - yComfort;
      szmid = zmax + halfHeight + zComfort;
      break;
    case minusZ:  // y-axis up, x-axis to left?
      sxmid = xmin - xComfort;
      symid = ymin - yComfort;
      szmid = zmin - halfHeight - zComfort;
      break;
    }
  }

  G4Transform3D transform;
  switch (logoDirection) {
  case X:  // y-axis up, z-axis to left?
    transform = G4RotateY3D(halfpi);
    break;
  case minusX:  // y-axis up, z-axis to right?
    transform = G4RotateY3D(-halfpi);
    break;
  case Y:  // z-axis up, x-axis to left?
    transform = G4RotateX3D(-halfpi) * G4RotateZ3D(pi);
    break;
  case minusY:  // z-axis up, x-axis to right?
    transform = G4RotateX3D(halfpi);
    break;
  case Z:  // y-axis up, x-axis to right?
    // No transformation required.
    break;
  case minusZ:  // y-axis up, x-axis to left?
    transform = G4RotateY3D(pi);
    break;
  }
  transform = G4Translate3D(sxmid,symid,szmid) * transform;

  G4VisAttributes visAtts(G4Colour(red, green, blue));
  visAtts.SetForceSolid(true);         // Always solid.

  G4Logo* logo = new G4Logo(height,visAtts);
  G4VModel* model =
    new G4CallbackModel<G4VisCommandSceneAddLogo::G4Logo>(logo);
  model->SetType("G4Logo");
  model->SetGlobalTag("G4Logo");
  model->SetGlobalDescription("G4Logo: " + newValue);
  model->SetTransformation(transform);
  // Note: it is the responsibility of the model to act upon this, but
  // the extent is in local coordinates...
  G4double& h = height;
  G4double h2 = h/2.;
  G4VisExtent extent(-h,h,-h2,h2,-h2,h2);
  model->SetExtent(extent);
  // This extent gets "added" to existing scene extent in
  // AddRunDurationModel below.
  const G4String& currentSceneName = pScene -> GetName ();
  G4bool successful = pScene -> AddRunDurationModel (model, warn);
  if (successful) {
    if (verbosity >= G4VisManager::confirmations) {
      G4cout << "G4 Logo of height " << userHeight << ' ' << userHeightUnit
         << ", " << direction << "-direction, added to scene \""
         << currentSceneName << "\"";
      if (verbosity >= G4VisManager::parameters) {
    G4cout << "\n  with extent " << extent
           << "\n  at " << transform.getRotation()
           << transform.getTranslation();
      }
      G4cout << G4endl;
    }
  }
  else G4VisCommandsSceneAddUnsuccessful(verbosity);
  UpdateVisManagerScene (currentSceneName);
}

---

The documentation for this class was generated from the following files:

• G4VisCommandsSceneAdd.hh
• G4VisCommandsSceneAdd.cc