125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
#include "Geant/Solid.h"
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#include "HEP/Geant/GeantEvent.h"
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#include "HEP/Geant/Scene.h"
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#include "HEP/Geant/EmitterPrimary.hh"
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#include "Math/ContainerBox.h"
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#include "Math/Dense.h"
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#include "Math/Units.h"
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#include "Vtk/uLibVtkViewer.h"
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#include "Vtk/HEP/Geant/vtkGeantEvent.h"
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#include "Vtk/HEP/Geant/vtkEmitterPrimary.h"
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#include "Vtk/vtkContainerBox.h"
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#include <vtkSmartPointer.h>
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#include <vtkCallbackCommand.h>
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#include <vtkRenderWindowInteractor.h>
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#include <vtkProperty.h>
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#include <vtkRenderer.h>
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#include <vtkRenderWindow.h>
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#include <Geant4/Randomize.hh>
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#include <Geant4/G4ParticleGun.hh>
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#include <Geant4/G4SystemOfUnits.hh>
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#include <iostream>
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using namespace uLib;
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struct AppState {
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Geant::Scene* scene;
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Vtk::Viewer* viewer;
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Vector<Geant::GeantEvent> results;
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};
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void KeyPressCallbackFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData) {
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auto* interactor = static_cast<vtkRenderWindowInteractor*>(caller);
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auto* state = static_cast<AppState*>(clientData);
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std::string key = interactor->GetKeySym();
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if (key == "Return") {
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std::cout << "--> Firing muon from current emitter position..." << std::endl;
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// Run one event
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state->scene->RunSimulation(1, state->results);
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if (!state->results.empty()) {
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// Get the last event
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Geant::GeantEvent* lastEvent = &state->results.back();
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std::cout << " Collected event " << lastEvent->GetEventID()
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<< " with " << lastEvent->Path().size() << " steps." << std::endl;
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// Wrap it for VTK
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Vtk::vtkGeantEvent* vtkEvent = new Vtk::vtkGeantEvent(lastEvent);
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state->viewer->AddPuppet(*vtkEvent);
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// Re-render
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state->viewer->GetRenderer()->Render();
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state->viewer->GetRenderWindow()->Render();
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}
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else {
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std::cout << " No event collected." << std::endl;
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}
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}
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}
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int main(int argc, char** argv) {
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// 1. Setup Geant4 Scene
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Geant::Scene scene;
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scene.ConstructWorldBox(Vector3f(30_m, 30_m, 30_m), "G4_AIR");
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ContainerBox iron_box;
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iron_box.Scale(Vector3f(10_m, 10_m, 10_m));
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iron_box.SetPosition(Vector3f(0, 0, 0));
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Geant::BoxSolid* iron_cube = new Geant::BoxSolid("IronCube", &iron_box);
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iron_cube->SetNistMaterial("G4_Fe");
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iron_cube->Update();
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scene.AddSolid(iron_cube);
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Geant::EmitterPrimary* emitter = new Geant::EmitterPrimary();
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emitter->SetPosition(Vector3f(0, 0, 14_m));
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scene.SetEmitter(emitter);
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scene.Initialize();
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// 2. Setup VTK Viewer
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Vtk::Viewer viewer;
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viewer.GetRenderer()->SetBackground(0.05, 0.05, 0.1);
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// Visualize world box
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Vtk::vtkContainerBox* vtkWorld = new Vtk::vtkContainerBox(scene.GetWorldBox());
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vtkWorld->ShowScaleMeasures(true);
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vtkWorld->SetRepresentation(Vtk::Puppet::Wireframe);
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vtkWorld->SetSelectable(false);
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viewer.AddPuppet(*vtkWorld);
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// Visualize iron cube
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Vtk::vtkContainerBox* vtkIron = new Vtk::vtkContainerBox(&iron_box);
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vtkIron->SetOpacity(0.2);
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vtkIron->SetRepresentation(Vtk::Puppet::Surface);
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viewer.AddPuppet(*vtkIron);
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// Visualize Emitter
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Vtk::vtkEmitterPrimary* vtkEmitter = new Vtk::vtkEmitterPrimary(*emitter);
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viewer.AddPuppet(*vtkEmitter);
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// 3. Event Handling
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AppState state = { &scene, &viewer, {} };
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vtkSmartPointer<vtkCallbackCommand> keyCallback = vtkSmartPointer<vtkCallbackCommand>::New();
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keyCallback->SetCallback(KeyPressCallbackFunction);
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keyCallback->SetClientData(&state);
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viewer.GetInteractor()->AddObserver(vtkCommand::KeyPressEvent, keyCallback);
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std::cout << "=================================================" << std::endl;
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std::cout << " Geant Muon Interactive Emitter Test" << std::endl;
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std::cout << " Use the Widget to move/rotate the Arrow (Emitter)" << std::endl;
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std::cout << " Press [ENTER] to fire a muon" << std::endl;
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std::cout << " Press [q] to exit" << std::endl;
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std::cout << "=================================================" << std::endl;
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viewer.ZoomAuto();
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viewer.Start();
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return 0;
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}
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