BLCMDprobefield Class Reference

Inheritance diagram for BLCMDprobefield:

List of all members.

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Detailed Description

class BLCMDprobefield is a command to print fields at specified points

Public Member Functions
	BLCMDprobefield ()
	~BLCMDprobefield ()
G4String	commandName ()
int	command (BLArgumentVector &argv, BLArgumentMap &namedArgs)
void	defineNamedArgs ()
void	callback (int type)
	callback() from BLCallback.
Private Attributes
G4String	file
FILE *	in
G4int	exit

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Constructor & Destructor Documentation

BLCMDprobefield::BLCMDprobefield

(

)

References BLCMDTYPE_DATA, exit, file, in, BLCommand::registerCommand(), BLCommand::setDescription(), and BLCommand::setSynopsis().

Referenced by command().

{
        registerCommand(BLCMDTYPE_DATA);
        setSynopsis("Prints B and E fields at specified points.");
        setDescription("Intended primarily for debugging. Prints Bx,By,Bz "
                "in Tesla, and Ex,Ey,Ez in MegaVolts/meter. "
                "Each input line is x,y,z,t separated by spaces or commas; "
                "omitted values are set to 0.0. "
                "Runs after the reference particle is tracked. "
                "Only global coordinates are used.");
        file = "-";
        in = 0;
        exit = 0;
}

BLCMDprobefield::~BLCMDprobefield

(

)

[inline]

{ }

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Member Function Documentation

G4String BLCMDprobefield::commandName

(

)

[inline, virtual]

Implements BLCommand.

{ return "probefield"; }

int BLCMDprobefield::command	(	BLArgumentVector &	argv,
		BLArgumentMap &	namedArgs
	)			[virtual]

Implements BLCommand.

References BLCMDprobefield(), file, BLManager::getObject(), BLCommand::handleNamedArgs(), in, BLCommand::printError(), and BLManager::registerCallback().

{
        if(argv.size() > 0) {
                printError("probefield: Invalid argument\n");
                return -1;
        }

        BLCMDprobefield *p = new BLCMDprobefield(defaultProbeField);
        int retval = p->handleNamedArgs(namedArgs);

        if(p->file == "-") {
                p->in = stdin;
        } else {
                p->in = fopen(p->file.c_str(),"r");
                if(!p->in)
                        printError("probefield cannot open '%s'",
                                                        p->file.c_str());
                ++retval;
        }

        // register the object to be called back to do its print.
        // 1 => after reference particle is tracked.
        BLManager::getObject()->registerCallback(p,1);

        return retval;
}

void BLCMDprobefield::defineNamedArgs

(

)

[virtual]

Reimplemented from BLCommand.

References BLCommand::argInt(), BLCommand::argString(), exit, and file.

{
        argString(file,"file","Filename for reading list of points (- = stdin)");
        argInt(exit,"exit","Set nonzero to exit after printing field");
}

void BLCMDprobefield::callback

(

int

type

)

[virtual]

callback() from BLCallback.

Reimplemented from BLCallback.

References exit, g4bl_exit(), BLGlobalField::GetFieldValue(), BLGlobalField::getObject(), and in.

{
        BLGlobalField *gf = BLGlobalField::getObject();

        printf("probefield is printing field values:\n");
        printf("#x y z t Bx By Bz Ex Ey Ez\n");
        for(;;) {
                if(in == stdin) fprintf(stderr,"point: ");
                char line[1024];
                if(!fgets(line,sizeof(line),in)) break;
                for(;;) {
                        char *p = strchr(line,',');
                        if(!p) break;
                        *p = ' ';
                }
                G4double pos[4];
                pos[0] = pos[1] = pos[2] = pos[3] = 0.0;
                sscanf(line,"%lf %lf %lf %lf",&pos[0],&pos[1],&pos[2],&pos[3]); 
                pos[0] *= mm; pos[1] *= mm; pos[2] *= mm; pos[3] *= ns;
                G4double field[6];
                gf->GetFieldValue(pos,field);
                printf("%.3f %.3f %.3f %.3f  %.6f %.6f %.6f  %.6f %.6f %.6f\n",
                        pos[0]/mm,pos[1]/mm,pos[2]/mm,pos[3]/ns,
                        field[0]/tesla,field[1]/tesla,field[2]/tesla,
                        field[3]/(megavolt/meter),field[4]/(megavolt/meter),
                        field[5]/(megavolt/meter));
                fflush(stdout);
        }

        if(exit) {
                printf("probefield: exit\n");
                fflush(stdout);
                g4bl_exit(0);
        }
}

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Member Data Documentation

G4String BLCMDprobefield::file [private]

Referenced by BLCMDprobefield(), command(), and defineNamedArgs().

FILE* BLCMDprobefield::in [private]

Reimplemented from BLCommand.

Referenced by BLCMDprobefield(), callback(), and command().

G4int BLCMDprobefield::exit [private]

Referenced by BLCMDprobefield(), callback(), and defineNamedArgs().

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

• BLCMDprobefield.cc