g4system_example.cc

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// gemc
#include "gworld.h"
 
// g4system
#include "g4world.h"
#include "g4system_options.h"
 
int main(int argc, char* argv[]) {
    // Create global option set with g4system options registered.
    auto gopts = std::make_shared<GOptions>(argc, argv, g4system::defineOptions());
 
    // Logger used by this example. Verbosity is controlled by the option set.
    auto log = std::make_shared<GLogger>(gopts, SFUNCTION_NAME, G4SYSTEM_LOGGER);
 
    // Build the GEMC world definition from the configured options/sources.
    auto gworld = std::make_shared<GWorld>(gopts);
 
    // Convert the GEMC world into Geant4 volumes using the g4system module.
    auto g4world = std::make_shared<G4World>(gworld.get(), gopts);
 
    // Print the number of volumes in the GEMC world definition.
    log->info(2, "Number of volumes in the gworld: ", gworld->get_number_of_volumes());
 
    // Print the list of sensitive detectors declared by the world definition.
    auto sensitiveDetectors = gworld->getSensitiveDetectorsList();
    for (const auto& sd : sensitiveDetectors) {
        log->info(2, "Sensitive detector: ", sd);
    }
 
    return EXIT_SUCCESS;
}