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File indexing completed on 2021-02-14 13:27:14

0001 // -*- C++ -*-
0002 //
0003 // Package:     Core
0004 // Class  :     FWGlimpseView
0005 //
0006 // Implementation:
0007 //     <Notes on implementation>
0008 //
0009 // Original Author:  Chris Jones
0010 //         Created:  Thu Feb 21 11:22:41 EST 2008
0011 //
0012 
0013 #include <functional>
0014 
0015 #include "TGLPerspectiveCamera.h"
0016 #include "TGLViewer.h"
0017 #include "TGLScenePad.h"
0018 #include "TEveScene.h"
0019 #include "TEveViewer.h"
0020 
0021 #include "TEveManager.h"
0022 #include "TEveElement.h"
0023 
0024 #include "TEveText.h"
0025 #include "TGLFontManager.h"
0026 
0027 #include "TEveTrans.h"
0028 #include "TGeoTube.h"
0029 #include "TEveGeoNode.h"
0030 #include "TEveGeoShape.h"
0031 #include "TEveStraightLineSet.h"
0032 
0033 // user include files
0034 #include "Fireworks/Core/interface/FWGlimpseView.h"
0035 #include "Fireworks/Core/interface/BuilderUtils.h"
0036 
0037 //
0038 // constants, enums and typedefs
0039 //
0040 
0041 //
0042 // static data member definitions
0043 //
0044 //double FWGlimpseView::m_scale = 1;
0045 
0046 //
0047 // constructors and destructorquery
0048 //
0049 FWGlimpseView::FWGlimpseView(TEveWindowSlot* iParent, FWViewType::EType typeId)
0050     : FWEveView(iParent, typeId),
0051       m_cylinder(nullptr),
0052       m_showAxes(this, "Show Axes", true),
0053       m_showCylinder(this, "Show Cylinder", true) {
0054   createAxis();
0055 
0056   // made new wireframe scene
0057   TEveScene* wns = gEve->SpawnNewScene(Form("Wireframe Scene %s", typeName().c_str()));
0058   viewer()->AddScene(wns);
0059   TGLScene* gls = wns->GetGLScene();
0060   gls->SetStyle(TGLRnrCtx::kWireFrame);
0061   gls->SetLOD(TGLRnrCtx::kLODMed);
0062   gls->SetSelectable(kFALSE);
0063 
0064   TEveGeoManagerHolder gmgr(TEveGeoShape::GetGeoMangeur());
0065   TGeoTube* tube = new TGeoTube(129, 130, 310);
0066   m_cylinder = fireworks::getShape("Detector outline", tube, kWhite);
0067   m_cylinder->SetPickable(kFALSE);
0068   m_cylinder->SetMainColor(kGray + 3);
0069   wns->AddElement(m_cylinder);
0070 
0071   TGLViewer* ev = viewerGL();
0072   ev->SetCurrentCamera(TGLViewer::kCameraPerspXOZ);
0073   m_showAxes.changed_.connect(std::bind(&FWGlimpseView::showAxes, this));
0074   m_showCylinder.changed_.connect(std::bind(&FWGlimpseView::showCylinder, this));
0075 }
0076 
0077 FWGlimpseView::~FWGlimpseView() {}
0078 
0079 //
0080 // member functions
0081 //
0082 
0083 void FWGlimpseView::createAxis() {
0084   // create 3D axes
0085   TEveElementList* axisHolder = new TEveElementList("GlimpseAxisHolder");
0086 
0087   TGLFont::EMode fontMode = TGLFont::kPixmap;
0088   Int_t fs = 14;
0089   Color_t fcol = kGray + 1;
0090 
0091   // X axis
0092   TEveStraightLineSet* xAxis = new TEveStraightLineSet("GlimpseXAxis");
0093   xAxis->SetPickable(kTRUE);
0094   xAxis->SetTitle("Energy Scale, 100 GeV, X-axis (LHC center)");
0095   xAxis->SetLineStyle(3);
0096   xAxis->SetLineColor(fcol);
0097   xAxis->AddLine(-100, 0, 0, 100, 0, 0);
0098   axisHolder->AddElement(xAxis);
0099 
0100   TEveText* xTxt = new TEveText("X+");
0101   xTxt->PtrMainTrans()->SetPos(100 - fs, -fs, 0);
0102   xTxt->SetFontMode(fontMode);
0103   xTxt->SetMainColor(fcol);
0104   axisHolder->AddElement(xTxt);
0105 
0106   // Y axis
0107   TEveStraightLineSet* yAxis = new TEveStraightLineSet("GlimpseYAxis");
0108   yAxis->SetPickable(kTRUE);
0109   yAxis->SetTitle("Energy Scale, 100 GeV, Y-axis (upward)");
0110   yAxis->SetLineColor(fcol);
0111   yAxis->SetLineStyle(3);
0112   yAxis->AddLine(0, -100, 0, 0, 100, 0);
0113   axisHolder->AddElement(yAxis);
0114 
0115   TEveText* yTxt = new TEveText("Y+");
0116   yTxt->PtrMainTrans()->SetPos(0, 100 - fs, 0);
0117   yTxt->SetFontMode(fontMode);
0118   yTxt->SetMainColor(fcol);
0119   axisHolder->AddElement(yTxt);
0120 
0121   // Z axis
0122   TEveStraightLineSet* zAxis = new TEveStraightLineSet("GlimpseZAxis");
0123   zAxis->SetPickable(kTRUE);
0124   zAxis->SetTitle("Energy Scale, 100 GeV, Z-axis (west, along beam)");
0125   zAxis->SetLineColor(fcol);
0126   zAxis->AddLine(0, 0, -100, 0, 0, 100);
0127   axisHolder->AddElement(zAxis);
0128 
0129   TEveText* zTxt = new TEveText("Z+");
0130   zTxt->PtrMainTrans()->SetPos(0, -fs, 100 - zTxt->GetExtrude() * 2);
0131   zTxt->SetFontMode(fontMode);
0132   zTxt->SetMainColor(fcol);
0133   axisHolder->AddElement(zTxt);
0134 
0135   geoScene()->AddElement(axisHolder);
0136 }
0137 
0138 void FWGlimpseView::showAxes() {
0139   if (m_showAxes.value())
0140     viewerGL()->SetGuideState(TGLUtil::kAxesOrigin, kTRUE, kFALSE, nullptr);
0141   else
0142     viewerGL()->SetGuideState(TGLUtil::kAxesNone, kTRUE, kFALSE, nullptr);
0143 }
0144 
0145 void FWGlimpseView::showCylinder() {
0146   if (m_showCylinder.value())
0147     m_cylinder->SetRnrState(kTRUE);
0148   else
0149     m_cylinder->SetRnrState(kFALSE);
0150 
0151   gEve->Redraw3D();
0152 }
0153 
0154 void FWGlimpseView::addTo(FWConfiguration& iTo) const {
0155   FWEveView::addTo(iTo);
0156   TGLPerspectiveCamera* camera = dynamic_cast<TGLPerspectiveCamera*>(&(viewerGL()->CurrentCamera()));
0157   if (camera)
0158     addToPerspectiveCamera(camera, typeName(), iTo);
0159 }
0160 
0161 void FWGlimpseView::setFrom(const FWConfiguration& iFrom) {
0162   FWEveView::setFrom(iFrom);
0163   TGLPerspectiveCamera* camera = dynamic_cast<TGLPerspectiveCamera*>(&(viewerGL()->CurrentCamera()));
0164   if (camera)
0165     setFromPerspectiveCamera(camera, typeName(), iFrom);
0166 }