source: trunk/source/geometry/solids/test/fred/src/FredHit.cc@ 1330

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//
//
// FredHit.cc
//
// Implementation of FredHit: intersection of track with a test volume
//
// For more comments, you should really take a look at FredHit.hh
//

#include "FredHit.hh"
#include "G4Track.hh"
#include "G4VVisManager.hh"
#include "G4Circle.hh"
#include "G4Color.hh"
#include "G4VisAttributes.hh"

//
// Implement FredHit's allocator, via template
G4Allocator<FredHit> FredHitAllocator;


//
// Constructor (position and enters specified)
//
FredHit::FredHit( const G4ThreeVector aPos, G4bool aEnters, const G4Track *aTrack )
{
        pos = aPos;
        enters = aEnters;
        track = aTrack;
}


//
// Copy (initialization)
//
FredHit::FredHit( const FredHit &right )
  : G4VHit(right)
{
        // Assign position
        pos = right.pos;
        enters = right.enters;
        track = right.track;
}

//
// Copy (assignment operator)
//
const FredHit& FredHit::operator=( const FredHit &right )
{
        pos = right.pos;
        enters = right.enters;
        track = right.track;
        return *this;
}

//
// Draw
// Our standard drawing
//
void FredHit::Draw()
{
        DrawPrim(0);
}

//
// DrawShadowHit
//
// Special draw mode for drawing tracks that miss the test volume
//
void FredHit::DrawShadowHit()
{
        DrawPrim(1);
}

//
// DrawShadowHit
//
// Special draw mode for drawing tracks that hit the test volume
//
void FredHit::DrawMaskHit()
{
        DrawPrim(3);
}

//
// DrawErrorHit
//
// Special draw mode for drawing tracks with tracking errors (bugs)
//
void FredHit::DrawErrorHit()
{
        DrawPrim(2);
}

//
// DrawPrim
// With all this wonderful c++ technology, why is drawing still
// such a pain?? 
//

void FredHit::DrawPrim(G4int imode)
{
        //
        // Make sure there is something to draw first
        //
        G4VVisManager *visManager = G4VVisManager::GetConcreteInstance();
        
        if (visManager) {
                //
                // Heh. Sometimes something bad happens, and we get
                // a point at infinity. Don't draw such a beasty, as it
                // messes up VRML viewing.
                //
                if (pos.mag() > 200.0*m) return;
        
        
                // How about a little circle?
                //
                // I took this from example N04. Note the temporary
                // nature of the "G4VisAttribute". We can do this
                // because circle.SetVisAttributes copies it.
                
                G4Circle circle( pos );
                if (imode==0) {
                        //circle.SetScreenSize( 3.0 );
                        circle.SetWorldSize( 5*cm );
                        G4Color color( enters ? 0:1, enters ? 0:1, 1 );
                        G4VisAttributes attribs( color );
                        circle.SetVisAttributes( attribs );
                }
                else if (imode==1) {
                        circle.SetScreenSize( 2.0 );
                        G4Color color( 0.25, 0.25, 1.0 );
                        G4VisAttributes attribs( color );
                        circle.SetVisAttributes( attribs );
                }
                else if (imode==2) {
                        circle.SetScreenSize( 3.0 );
                        G4Color color( 1.0, 1.0, 1.0 );
                        G4VisAttributes attribs( color );
                        circle.SetVisAttributes( attribs );
                }
                else if (imode==3) {
                        circle.SetScreenSize( 3.0 );
                        G4Color color( 1.0, 0.25, 0.25 );
                        G4VisAttributes attribs( color );
                        circle.SetVisAttributes( attribs );
                }
                
                circle.SetFillStyle( G4Circle::filled );
                visManager->Draw( circle );
        }
}

//
// Print
//
void FredHit::Print()
{

        // Print the position
        ;
}