Import Geant4 0.1.0 source tree
This commit is contained in:
Gabriele Cosmo
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// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4FukuiRendererViewer.cc,v 1.2 1999/01/11 00:47:24 allison Exp $
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// GEANT4 tag $Name: geant4-00-01 $
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//
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//
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// Satoshi TANAKA, Fri Jun 28 12:09:11 JST 1996
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// FukuiRenderer view - opens window, hard copy, etc.
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//=================//
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#ifdef G4VIS_BUILD_DAWN_DRIVER
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//=================//
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#define __G_ANSI_C__
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#define G4FukuiRenderer_STRUCTURE_PRIORITY 1.
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// #define DEBUG_FR_VIEW
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#include "G4ios.hh"
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "G4Scene.hh"
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#include "G4Vector3D.hh"
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#include "G4VisExtent.hh"
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#include "G4LogicalVolume.hh"
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#include "G4VSolid.hh"
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#include "G4FRConst.hh"
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#include "G4FukuiRenderer.hh"
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#include "G4FukuiRendererSceneHandler.hh"
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#include "G4FukuiRendererViewer.hh"
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//----- constants
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const char FR_ENV_MULTI_WINDOW[] = "G4DAWN_MULTI_WINDOW" ;
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//----- G4FukuiRendererViewer, constructor
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G4FukuiRendererViewer::G4FukuiRendererViewer (G4FukuiRendererSceneHandler& scene,
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const G4String& name):
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G4VViewer (scene, scene.IncrementViewCount (), name), fSceneHandler (scene)
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{}
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//----- G4FukuiRendererViewer, destructor
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G4FukuiRendererViewer::~G4FukuiRendererViewer ()
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{}
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//----- G4FukuiRendererViewer::SetView ()
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void G4FukuiRendererViewer::SetView ()
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::SetView()\n";
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#endif
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// Do nothing, since DAWN is running as a different process.
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// SendViewParameters () will do this job instead.
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}
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//----- G4FukuiRendererViewer::ClearView()
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void
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G4FukuiRendererViewer::ClearView( void )
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::ClearView () " << endl;
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#endif
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//----- Begin saving data to g4.prim
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fSceneHandler.BeginSavingG4Prim();
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//----- Clear old data
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fSceneHandler.SendStr( FR_CLEAR_DATA );
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}
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//----- G4FukuiRendererViewer::DrawView ()
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void G4FukuiRendererViewer::DrawView ()
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::DrawView () " << endl;
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#endif
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//----- Error recovery
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if( fSceneHandler.IsInModeling() ) {
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G4cerr << "WARNING from FukuiRenderer (DAWN) driver:" << endl;
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G4cerr << " You've invoked a drawing command before " << endl;
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G4cerr << " completing your previous visualization." << endl;
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// G4cerr << " You should have invoked command, /vis~/show/view," << endl;
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// G4cerr << " to complete it." << endl;
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FlushView();
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}
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//----- Begin Saving g4.prim file
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fSceneHandler.BeginSavingG4Prim();
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//----- drawing device
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if( ( getenv( FR_ENV_MULTI_WINDOW ) != NULL ) && \
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( strcmp( getenv( FR_ENV_MULTI_WINDOW ),"0" ) ) )
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{
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SendDevice( FRDEV_XWIN ) ;
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} else {
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SendDevice( FRDEV_PS ) ;
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}
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//----- drawing style
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SendDrawingStyle() ;
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//----- set view if necessary
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SendViewParameters();
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// Camera data should be sent at every time, even if
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// the setting is unchanged at GEANT 4 side.
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//----- Always visit G4 kernel
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NeedKernelVisit ();
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//----- Draw
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ProcessView () ;
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} // G4FukuiRendererViewer::DrawView ()
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//----- G4FukuiRendererViewer::ShowView()
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void G4FukuiRendererViewer::ShowView( void )
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::ShowView () " << endl;
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#endif
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if( fSceneHandler.IsInModeling() ) // if( fSceneHandler.flag_in_modeling )
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{
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//----- End of Data
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fSceneHandler.FREndModeling();
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//----- Draw all
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fSceneHandler.SendStr( FR_DRAW_ALL );
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//----- Close device
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fSceneHandler.SendStr( FR_CLOSE_DEVICE );
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//----- End saving data to g4.prim
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fSceneHandler.EndSavingG4Prim() ;
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//----- Wait user clicks drawing Area
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this->Wait();
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}
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} // G4FukuiRendererViewer::ShowView()
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//----- G4FukuiRendererViewer::FlushView()
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void G4FukuiRendererViewer::FlushView( void )
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::Flush () " << endl;
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#endif
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if( fSceneHandler.IsInModeling() ) // if( fSceneHandler.flag_in_modeling )
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{
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//----- End of Data
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fSceneHandler.FREndModeling();
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//----- Draw all
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fSceneHandler.SendStr( FR_DRAW_ALL );
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//----- Close device
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fSceneHandler.SendStr( FR_CLOSE_DEVICE );
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//----- End saving data to g4.prim
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fSceneHandler.EndSavingG4Prim() ;
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}
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} // G4FukuiRendererViewer::FlushView()
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//----- G4FukuiRendererViewer::Wait()
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void
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G4FukuiRendererViewer::Wait()
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::Wait () " << endl;
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#endif
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fSceneHandler.SendStr ( FR_WAIT );
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fSceneHandler.GetPrimDest().WaitSendBack( FR_WAIT );
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::Wait () : end" << endl;
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#endif
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}
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//----- G4FukuiRendererViewer::SendDevice()
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void
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G4FukuiRendererViewer::SendDevice( FRDEV dev )
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::SendDevice() " << endl;
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#endif
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// enum {PS=1, XWIN=2, PS2=3, XWIN2=4, OPEN_GL=5, DEVICE_END=6};
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if( dev >= FRDEV_PS || dev < FRDEV_DEVICE_END ) {
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fSceneHandler.SendStrInt ( FR_DEVICE, dev );
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}
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}
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//----- G4FukuiRendererViewer::SendDrawingStyle()
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void G4FukuiRendererViewer::SendDrawingStyle()
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{
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::SendDrawingStyle() " << endl;
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#endif
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G4int style = fVP.GetDrawingStyle();
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switch( style )
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{
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case G4ViewParameters::wireframe:
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fSceneHandler.SendStr( FR_WIREFRAME );
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break;
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case G4ViewParameters::hlr:
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fSceneHandler.SendStr( FR_LINES );
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break;
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case G4ViewParameters::hsr:
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case G4ViewParameters::hlhsr:
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fSceneHandler.SendStr( FR_SURFACE );
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break;
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default:
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fSceneHandler.SendStr( FR_WIREFRAME );
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break;
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}
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} // G4FukuiRendererViewer::SendDrawingStyle()
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//----- G4FukuiRendererViewer::SendViewParameters ()
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void G4FukuiRendererViewer::SendViewParameters ()
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{
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// Calculates view representation based on extent of object being
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// viewed and (initial) direction of camera. (Note: it can change
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// later due to user interaction via visualization system's GUI.)
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#if defined DEBUG_FR_VIEW
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G4cerr << "***** G4FukuiRendererViewer::SendViewParameters()\n";
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#endif
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//----- Magic number to decide camera distance automatically
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const G4double HOW_FAR = 1000.0 ; // to define "infinity"
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const G4double MIN_HALF_ANGLE = 0.01 ;
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const G4double MAX_HALF_ANGLE = 0.499 * M_PI ;
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//----- Send Bounding Box
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fSceneHandler.SendBoundingBox();
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//----- (2A) CALC camera distance
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//..... Note: Camera cannot enter inside object
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G4double camera_distance ;
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G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
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G4double half_view_angle = fabs ( fVP.GetFieldHalfAngle () ) ;
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if( half_view_angle > MAX_HALF_ANGLE ) {
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half_view_angle = MAX_HALF_ANGLE ;
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}
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if( half_view_angle < MIN_HALF_ANGLE ) {
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//----- infinity (or ortho projection)
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camera_distance = radius * HOW_FAR ;
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} else {
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//----- Calc camera distance from half view angle
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camera_distance = radius / sin ( half_view_angle );
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camera_distance -= fVP.GetDolly();
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}
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if ( camera_distance < radius ) {
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G4cerr << "WARNING from FukuiRenderer (DAWN) driver:" << endl;
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G4cerr << " Camera cannot enter inside objects" << endl;
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camera_distance = radius ;
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}
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//----- (3A) CALC camera direction
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const G4Vector3D& camera_direction \
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= fVP.GetViewpointDirection().unit();
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const G4double v_angle = (180.0 / M_PI) * camera_direction.theta() ;
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const G4double h_angle = (180.0 / M_PI) * camera_direction.phi () ;
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//----- (2B), (3B) SEND camera position
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fSceneHandler.SendStrDouble3( FR_CAMERA_POSITION,
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camera_distance,
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v_angle,
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h_angle );
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//----- (4A) CALC target point
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const G4Point3D& target_point = fVP.GetCurrentTargetPoint();
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//----- (4B) SEND target point
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fSceneHandler.SendStrDouble3( FR_TARGET_POINT,
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target_point.x(),
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target_point.y(),
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target_point.z() );
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//----- (5A) CALC zoom factor
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const G4double zoom_factor = fVP.GetZoomFactor();
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//----- (5B) SEND zoom factor or focal length
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if( half_view_angle < MIN_HALF_ANGLE ) {
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const G4Point3D& std_target_point \
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= fSceneHandler.GetScene()->GetStandardTargetPoint();
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fSceneHandler.SendStrDouble4( FR_ZOOM_FACTOR,
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zoom_factor ,
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std_target_point.x(),
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std_target_point.y(),
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std_target_point.z());
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// Note that target point, camera position,
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// and bounding box have already been sent above.
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// The std_target_point is necessary to
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// Calc focal distance from the zoom factor.
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} else {
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const G4double FR_HALF_SCREEN_SIZE = 0.5 ;
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G4double focal_distance \
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= FR_HALF_SCREEN_SIZE / tan( half_view_angle );
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focal_distance *= zoom_factor ;
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fSceneHandler.SendStrDouble ( FR_FOCAL_DISTANCE, focal_distance );
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}
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//----- INVOKE GUI: not executed in the default setting
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if( fSceneHandler.GetSystem().IsGUIMode() ) {
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//----- send GUI command
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fSceneHandler.SendStr( FR_GUI );
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//----- wait the same command is sent back:
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//..... This avoids to send many data before
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//..... GUI session is over.
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fSceneHandler.GetPrimDest().WaitSendBack( FR_GUI );
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}
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//----- SET CAMERA
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fSceneHandler.SendStr( FR_SET_CAMERA );
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} // G4FukuiRendererViewer::SendViewParameters ()
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#endif // G4VIS_BUILD_DAWN_DRIVER
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