Edb3DView Class Reference

Event Display. More...

#include <EdbDisplayBase.h>

Inheritance diagram for Edb3DView:

Collaboration diagram for Edb3DView:

Public Member Functions
	Edb3DView ()
virtual void	ExecuteRotateView (Int_t event, Int_t px, Int_t py)
virtual const char *	GetName () const
virtual char *	GetObjectInfo (int px, int py) const
virtual const char *	GetTitle () const
virtual void	SetRotateMode (bool Mode=true)
	~Edb3DView ()

Protected Attributes
bool	fRotateMode

Detailed Description

Event Display.

Constructor & Destructor Documentation

Edb3DView()

Edb3DView::Edb3DView ( )

inline

: TView3D() { fRotateMode = false; }

~Edb3DView()

Edb3DView::~Edb3DView ( )

inline

{};

Member Function Documentation

ExecuteRotateView()

void Edb3DView::ExecuteRotateView ( Int_t  event, Int_t  px, Int_t  py  )

virtual

-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*-*-*-*-*-*-* -* ========================================= * -* This member function is called when a object is clicked with the locator * -* * -* If Left button clicked in the object area, while the button is kept down * -* the cube representing the surrounding frame for the corresponding * -* new latitude and longitude position is drawn. * -* * -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

{
   static Int_t system, framewasdrawn;
   static Double_t xrange, yrange, xmin, ymin, longitude1, latitude1, longitude2, latitude2;
   static Double_t newlatitude, newlongitude, oldlatitude, oldlongitude;
   Double_t dlatitude, dlongitude, x, y;
   Int_t irep = 0;
   Double_t psideg;
 
   // all coordinate transformation are from absolute to relative
 
   if (!fRotateMode)
   {
    gPad->SetCursor(kPointer);
    return;
   }
   if (!gPad->IsEditable()) return;
   gPad->AbsCoordinates(kTRUE);
 
   switch (event) {
 
   case kKeyPress :
       fChanged = kTRUE;
       MoveViewCommand(Char_t(px), py);
       break;
   case kMouseMotion:
      gPad->SetCursor(kRotate);
      break;
 
   case kButton1Down:
 
      // remember position of the cube
      xmin   = gPad->GetX1();
      ymin   = gPad->GetY1();
      xrange = gPad->GetX2() - xmin;
      yrange = gPad->GetY2() - ymin;
      x      = gPad->PixeltoX(px);
      y      = gPad->PixeltoY(py);
      system = GetSystem();
      framewasdrawn = 0;
      if (system == kCARTESIAN || system == kPOLAR || IsPerspective()) {
         longitude1 = 180*(x-xmin)/xrange;
         latitude1  =  90*(y-ymin)/yrange;
      } else {
         latitude1  =  90*(x-xmin)/xrange;
         longitude1 = 180*(y-ymin)/yrange;
      }
      newlongitude = oldlongitude = -90 - gPad->GetPhi();
      newlatitude  = oldlatitude  =  90 - gPad->GetTheta();
      psideg       = GetPsi();
 
      // if outline isn't set, make it look like a cube
      if(!fOutline)
          SetOutlineToCube();
      break;
 
   case kButton1Motion:
   {
      // draw the surrounding frame for the current mouse position
      // first: Erase old frame
      fChanged = kTRUE;
      if (framewasdrawn) fOutline->Paint();
      framewasdrawn = 1;
      x = gPad->PixeltoX(px);
      y = gPad->PixeltoY(py);
      if (system == kCARTESIAN || system == kPOLAR || IsPerspective()) {
         longitude2 = 180*(x-xmin)/xrange;
         latitude2  =  90*(y-ymin)/yrange;
      } else {
         latitude2  =  90*(x-xmin)/xrange;
         longitude2 = 180*(y-ymin)/yrange;
      }
      dlongitude   = longitude2   - longitude1;
      dlatitude    = latitude2    - latitude1;
      newlatitude  = oldlatitude  + dlatitude;
      newlongitude = oldlongitude - dlongitude;
      psideg       = GetPsi();
      ResetView(newlongitude, newlatitude, psideg, irep);
      fOutline->Paint();
 
      break;
   }
   case kButton1Up:
 
      // Temporary fix for 2D drawing problems on pad. fOutline contains
      // a TPolyLine3D object for the rotation box. This will be painted
      // through a newly created TViewer3DPad instance, which is left
      // behind on pad. This remaining creates 2D drawing problems.
      //
      // This is a TEMPORARY fix - will be removed when proper multiple viewers
      // on pad problems are resolved.
//Doesn't work in old versions of ROOT 
//      if (gPad) {
//         TVirtualViewer3D *viewer = gPad->GetViewer3D();
//         if (viewer && !strcmp(viewer->IsA()->GetName(),"TViewer3DPad")) {
//            gPad->ReleaseViewer3D();
//            delete viewer;
//         }
//      }
      // End fix
 
      // Recompute new view matrix and redraw
      psideg = GetPsi();
      SetView(newlongitude, newlatitude, psideg, irep);
      gPad->SetPhi(-90-newlongitude);
      gPad->SetTheta(90-newlatitude);
      gPad->Modified(kTRUE);
 
      // Set line color, style and width
      gVirtualX->SetLineColor(-1);
      gVirtualX->SetLineStyle(-1);
      gVirtualX->SetLineWidth(-1);
      break;
   }
 
   // set back to default transformation mode
   gPad->AbsCoordinates(kFALSE);
}

GetName()

const char * Edb3DView::GetName ( ) const

virtual

{
    static char name[] = "3-D View";
    return name;
}

GetObjectInfo()

char * Edb3DView::GetObjectInfo ( int  px, int  py  ) const

virtual

{
    static char rcoordinates[]="Rotated coordinates";
    static char coordinates[80];
    if (!gPad) return rcoordinates;
    float nxyz[3] = {gPad->AbsPixeltoX(px), gPad->AbsPixeltoY(py), 0.}, wxyz[3] = {0., 0., 0.};
    ((TView *)this)->NDCtoWC(nxyz, wxyz);
    if (((TView *)this)->GetLatitude() == 90.)
    {
    if (((TView *)this)->GetLongitude() == 180.)
        sprintf(coordinates, "Y = %.1f, Z = %.1f", wxyz[1], wxyz[2]);
    else if (((TView *)this)->GetLongitude() == 90.)
        sprintf(coordinates, "X = %.1f, Z = %.1f", wxyz[0], wxyz[2]);
    else
        return rcoordinates;
    }
    else if (((TView *)this)->GetLatitude() == 0.)
    sprintf(coordinates, "X = %.1f, Y = %.1f", wxyz[0], wxyz[1]);
    else
    return rcoordinates;
    return coordinates;
}

GetTitle()

const char * Edb3DView::GetTitle ( ) const

virtual

{
    static char title[80];
    sprintf(title, "%s", "FEDRA Event Display");
    return title;
}

SetRotateMode()

void Edb3DView::SetRotateMode ( bool  Mode = true )

virtual

Set or unset 3-D View Rotate Mode

{
   fRotateMode = mode;
}

Member Data Documentation

fRotateMode

bool Edb3DView::fRotateMode

protected

---

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

• /home/antonio/fedra_doxygen/src/libEdd/EdbDisplayBase.h
• /home/antonio/fedra_doxygen/src/libEdd/EdbDisplayBase.cxx