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Keywords: magnetic field lines BLineTracer
Forum: Fields: Magnetic and Otherwise
Date: 25 May, 2004
From: Valentin Kozlov <Valentin.Kozlov@fys.kuleuven.ac.be>

Dear All,

Recently I installed G4 6.1 where there is an utility BLineTracer to visualize the magnetic field lines. To implement it I simply copied the header files and source files in the directory of my program and included following strings:

#include "G4BlineTracer.hh"
  G4BlineTracer* theBlineTool = new G4BlineTracer();
(last one in the constructor of my B-field class)

but during compilation I get the following error message:

Compiling G4BlineTracer.cc ... src/G4BlineTracer.cc: In method `G4BlineTracer::~G4BlineTracer()':

src/G4BlineTracer.cc:74: invalid use of undefined type `class G4ChordFinder'

include/G4BlineTracer.hh:54: forward declaration of `class G4ChordFinder'

src/G4BlineTracer.cc: In method `void G4BlineTracer::ComputeBlines(int)':

src/G4BlineTracer.cc:143: invalid use of undefined type `class G4ChordFinder'

include/G4BlineTracer.hh:54: forward declaration of `class G4ChordFinder'

src/G4BlineTracer.cc: In method `void G4BlineTracer::ResetChordFinders()':

src/G4BlineTracer.cc:269: invalid use of undefined type `class G4ChordFinder'

include/G4BlineTracer.hh:54: forward declaration of `class G4ChordFinder'

src/G4BlineTracer.cc:292: `G4MagInt_Driver' undeclared (first use this function)

src/G4BlineTracer.cc:292: (Each undeclared identifier is reported only once

src/G4BlineTracer.cc:292: for each function it appears in.)

src/G4BlineTracer.cc:292: `pIntgrDriver' undeclared (first use this function)

src/G4BlineTracer.cc:293: parse error before `('

src/G4BlineTracer.cc:294: invalid use of undefined type `class G4ChordFinder'

include/G4BlineTracer.hh:54: forward declaration of `class G4ChordFinder'

src/G4BlineTracer.cc:291: warning: unused variable `class G4CashKarpRKF45 * pStepper'

src/G4BlineTracer.cc:318: parse error before `('

src/G4BlineTracer.cc:319: invalid use of undefined type `class G4ChordFinder'

include/G4BlineTracer.hh:54: forward declaration of `class G4ChordFinder'

src/G4BlineTracer.cc:316: warning: unused variable `class G4CashKarpRKF45 * pStepper'

gmake: *** [/home/valentin/tmp/Linux-g++/exampleN03/G4BlineTracer.o] Error 1

*** failed ***

What can be wrong and did somebody succefully use this nice utility already? Thank you!

Valentin

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1 None: Re: BlineTracer use   (Valentin Kozlov - 26 May, 2004)
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