Gabriele Cosmo
314 lines
10 KiB
C++
314 lines
10 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// John Allison 5th April 2001
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// A template for a simplest possible graphics driver.
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//?? Lines or sections marked like this require specialisation for your driver.
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#ifndef G4VTKVIEWER_HH
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#define G4VTKVIEWER_HH
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#include "G4VViewer.hh"
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#include "G4VtkInteractorStyle.hh"
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#include "G4VtkStore.hh"
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#include "G4VtkUtility.hh"
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#ifndef WIN32
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wextra-semi"
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#endif
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#include <vtkAutoInit.h>
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#include <vtkCamera.h>
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#include <vtkCameraOrientationWidget.h>
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#include <vtkImplicitPlaneRepresentation.h>
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#include <vtkImplicitPlaneWidget2.h>
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#include <vtkInteractorStyleTerrain.h>
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#include <vtkInteractorStyleTrackballCamera.h>
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#include <vtkLight.h>
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#include <vtkNew.h>
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#include <vtkObject.h>
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#include <vtkPlane.h>
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#include <vtkRenderWindow.h>
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#include <vtkRenderWindowInteractor.h>
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#include <vtkRenderer.h>
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#include <vtkTextActor.h>
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#ifndef WIN32
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#pragma GCC diagnostic pop
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#endif
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VTK_MODULE_INIT(vtkRenderingOpenGL2)
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VTK_MODULE_INIT(vtkInteractionStyle);
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VTK_MODULE_INIT(vtkRenderingFreeType)
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class vtkGeant4Callback : public vtkCommand
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{
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public:
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static vtkGeant4Callback* New() { return new vtkGeant4Callback; }
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vtkGeant4Callback() { fVP = nullptr; }
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void SetGeant4ViewParameters(G4ViewParameters* VP) { fVP = VP; }
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void SetVtkInitialValues(G4double parallelScaleIn, G4double cameraDistanceIn)
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{
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parallelScale = parallelScaleIn;
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cameraDistance = cameraDistanceIn;
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}
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void Execute(vtkObject* caller, unsigned long, void*) override
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{
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auto ren = static_cast<vtkRenderer*>(caller);
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vtkCamera* cam = ren->GetActiveCamera();
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auto cp = cam->GetPosition();
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auto fp = cam->GetFocalPoint();
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auto ud = cam->GetViewUp();
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auto ps = cam->GetParallelScale();
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auto cd = std::sqrt(std::pow(cp[0] - fp[0], 2) + std::pow(cp[1] - fp[1], 2)
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+ std::pow(cp[2] - fp[2], 2));
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fVP->SetCurrentTargetPoint(G4Point3D(fp[0], fp[1], fp[2]));
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fVP->SetViewpointDirection((G4Point3D(cp[0], cp[1], cp[2]) - G4Point3D(fp[0], fp[1], fp[2])).unit());
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fVP->SetUpVector(G4Vector3D(ud[0], ud[1], ud[2]));
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if (cam->GetParallelProjection() != 0) {
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fVP->SetZoomFactor(parallelScale / ps);
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}
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else {
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fVP->SetZoomFactor(cameraDistance / cd);
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}
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}
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protected:
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G4ViewParameters* fVP;
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G4double parallelScale;
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G4double cameraDistance;
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};
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class vtkInfoCallback : public vtkCommand
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{
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public:
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static vtkInfoCallback* New() { return new vtkInfoCallback; }
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vtkInfoCallback()
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{
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t1 = std::chrono::steady_clock::now();
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t2 = std::chrono::steady_clock::now();
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}
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void SetTextActor(vtkTextActor* txt) { this->TextActor = txt; }
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void Execute(vtkObject* caller, unsigned long, void*) override
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{
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auto ren = static_cast<vtkRenderer*>(caller);
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int nActors = ren->GetActors()->GetNumberOfItems();
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vtkCamera* cam = ren->GetActiveCamera();
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if (cam == nullptr) return;
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double* pos = cam->GetPosition();
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double* foc = cam->GetFocalPoint();
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double viewAngle = cam->GetViewAngle();
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double distance = cam->GetDistance();
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double near;
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double far;
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cam->GetClippingRange(near,far);
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double parallelScale = cam->GetParallelScale();
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if (pos == nullptr) return;
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// Get current time
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t2 = std::chrono::steady_clock::now();
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// Frame rate calculation
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std::chrono::duration<double> tdiff = t2 - t1;
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t1 = t2;
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float fps = 1.0 / tdiff.count();
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// String for display
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snprintf(this->TextBuff, sizeof this->TextBuff,
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"camera position : %.1f %.1f %.1f \n"
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"camera focal point : %.1f %.1f %.1f \n"
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"view angle : %.1f\n"
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"distance : %.1f\n"
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"clip near/far : %.1f %.1f\n"
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"parallel scale : %.1f\n"
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"number actors : %i\n"
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"fps : %.1f",
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pos[0], pos[1], pos[2], foc[0], foc[1], foc[2], viewAngle, distance, near, far, parallelScale,
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nActors, fps);
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if (this->TextActor != nullptr) {
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this->TextActor->SetInput(this->TextBuff);
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}
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}
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protected:
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vtkTextActor* TextActor;
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char TextBuff[256];
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std::chrono::time_point<std::chrono::steady_clock> t1;
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std::chrono::time_point<std::chrono::steady_clock> t2;
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};
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class vtkIPWCallback : public vtkCommand
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{
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public:
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static vtkIPWCallback* New() { return new vtkIPWCallback; }
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vtkIPWCallback() = default;
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void SetStore(G4VtkStore* storeIn) { store = storeIn; }
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void SetUpdatePipelineName(G4String nameIn, G4String typeIn)
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{
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pipelineToUpdateName = nameIn;
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pipelineToUpdateType = typeIn;
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}
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void Execute(vtkObject* caller, unsigned long, void*) override
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{
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if (this->plane == nullptr) {
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this->plane = vtkPlane::New();
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}
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if (pipelineToUpdateName.empty() || pipelineToUpdateType.empty()) {
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return;
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}
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auto planeWidget = reinterpret_cast<vtkImplicitPlaneWidget2*>(caller);
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auto rep =
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reinterpret_cast<vtkImplicitPlaneRepresentation*>(planeWidget->GetRepresentation());
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rep->GetPlane(this->plane);
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G4Plane3D g4p = VtkPlaneToG4Plane3D(this->plane);
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store->UpdatePlanePipelines(pipelineToUpdateName, pipelineToUpdateType, g4p);
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}
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vtkPlane* plane{nullptr};
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G4VtkStore* store{nullptr};
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G4String pipelineToUpdateName;
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G4String pipelineToUpdateType;
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};
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class G4VtkViewer : public G4VViewer
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{
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public:
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G4VtkViewer(G4VSceneHandler&, const G4String& name);
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void Initialise() override;
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~G4VtkViewer() override;
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void SetView() override;
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void ClearView() override;
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void DrawView() override;
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void ShowView() override;
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void FinishView() override;
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void ExportScreenShot(G4String, G4String);
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void ExportOBJScene(G4String);
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void ExportVRMLScene(G4String);
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void ExportVTPScene(G4String);
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void ExportGLTFScene(G4String);
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void ExportX3DScene(G4String);
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void ExportJSONRenderWindowScene(G4String);
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void ExportVTPCutter(G4String fileName);
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void ExportFormatStore(G4String fileName, G4String store);
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void DrawShadows();
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void EnableShadows();
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void DisableShadows();
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void AddViewHUD();
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void EnableHUD();
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void DisableHUD();
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virtual void AddClipperPlaneWidget(const G4Plane3D& plane);
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void EnableClipper(const G4Plane3D& plane, G4bool widget);
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void DisableClipper();
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virtual void EnableClipperWidget();
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virtual void DisableClipperWidget();
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virtual void AddCutterPlaneWidget(const G4Plane3D& plane);
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void EnableCutter(const G4Plane3D& plane, G4bool bWidget);
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void DisableCutter(G4String name);
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virtual void EnableCutterWidget();
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virtual void DisableCutterWidget();
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virtual void AddCameraOrientationWidget();
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virtual void EnableCameraOrientationWidget();
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virtual void DisableCameraOrientationWidget();
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void AddImageOverlay(const G4String& fileName, const G4double alpha,
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const G4double imageBottomLeft[2], const G4double worldBottomLeft[2],
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const G4double imageTopRight[2], const G4double worldTopRight[2],
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const G4double rot[3], const G4double trans[3]);
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void AddGeometryOverlay(const G4String& fileName, const G4double colour[3], const G4double alpha,
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const G4String& representation,
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const G4double scale[3], const G4double rotation[3],
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const G4double translation[3]);
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void Render() {_renderWindow->Render();}
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void StartInteractor() {
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G4cout << "StartInteractor" << G4endl;
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_renderWindow->GetInteractor()->Start();}
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void Print();
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void SetPolyhedronPipeline(const G4String& t);
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virtual void SetWidgetInteractor(vtkAbstractWidget* widget);
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void ExportView(){};
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void SetGeant4View(){};
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vtkNew<vtkTextActor> infoTextActor;
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vtkNew<vtkInfoCallback> infoCallback;
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vtkNew<vtkGeant4Callback> geant4Callback;
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vtkSmartPointer<vtkLight> light;
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vtkNew<vtkCamera> camera;
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vtkNew<vtkRenderer> renderer;
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vtkRenderWindow* _renderWindow;
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vtkRenderWindowInteractor* renderWindowInteractor;
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protected:
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G4bool firstSetView = true;
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G4bool firstFinishView = true;
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G4double cameraDistance;
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vtkNew<vtkImplicitPlaneRepresentation> cutterPlaneRepresentation;
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vtkNew<vtkImplicitPlaneWidget2> cutterPlaneWidget;
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vtkNew<vtkImplicitPlaneRepresentation> clipperPlaneRepresentation;
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vtkNew<vtkImplicitPlaneWidget2> clipperPlaneWidget;
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vtkNew<vtkCameraOrientationWidget> camOrientWidget;
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bool bCutter = false;
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bool bClipper = false;
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bool bHud = false;
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bool bOrientation = false;
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};
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#endif
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