/usr/include/root/TGLTF3Painter.h is in libroot-graf3d-gl-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Timur Pocheptsov 31/08/2006
/*************************************************************************
* Copyright (C) 1995-2006, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TGLTF3Painter
#define ROOT_TGLTF3Painter
#include <vector>
#include <list>
#ifndef ROOT_TGLPlotPainter
#include "TGLPlotPainter.h"
#endif
#ifndef ROOT_TGLIsoMesh
#include "TGLIsoMesh.h"
#endif
#ifndef ROOT_TGLUtil
#include "TGLUtil.h"
#endif
class TGLPlotCamera;
class TF3;
/*
Draw TF3 using marching cubes.
*/
class TGLTF3Painter : public TGLPlotPainter {
private:
enum ETF3Style {
kDefault,
kMaple0,
kMaple1,
kMaple2
};
ETF3Style fStyle;
Rgl::Mc::TIsoMesh<Double_t> fMesh;
TF3 *fF3;
TGLTH3Slice fXOZSlice;
TGLTH3Slice fYOZSlice;
TGLTH3Slice fXOYSlice;
public:
TGLTF3Painter(TF3 *fun, TH1 *hist, TGLPlotCamera *camera, TGLPlotCoordinates *coord);
char *GetPlotInfo(Int_t px, Int_t py);
Bool_t InitGeometry();
void StartPan(Int_t px, Int_t py);
void Pan(Int_t px, Int_t py);
void AddOption(const TString &stringOption);
void ProcessEvent(Int_t event, Int_t px, Int_t py);
private:
void InitGL()const;
void DeInitGL()const;
void DrawPlot()const;
//
void DrawToSelectionBuffer()const;
void DrawDefaultPlot()const;
void DrawMaplePlot()const;
//
void SetSurfaceColor()const;
Bool_t HasSections()const;
void DrawSectionXOZ()const;
void DrawSectionYOZ()const;
void DrawSectionXOY()const;
ClassDef(TGLTF3Painter, 0) // GL TF3 painter.
};
/*
Iso painter draws iso surfaces - "gliso" option for TH3XXX::Draw.
Can be one-level iso (as standard non-gl "iso" option),
or multi-level iso: equidistant contours (if you only specify
number of contours, or at user defined levels).
*/
class TGLIsoPainter : public TGLPlotPainter {
private:
typedef Rgl::Mc::TIsoMesh<Float_t> Mesh_t;
typedef std::list<Mesh_t> MeshList_t;
typedef std::list<Mesh_t>::iterator MeshIter_t;
typedef std::list<Mesh_t>::const_iterator ConstMeshIter_t;
TGLTH3Slice fXOZSlice;
TGLTH3Slice fYOZSlice;
TGLTH3Slice fXOYSlice;
Mesh_t fDummyMesh;
//List of meshes.
MeshList_t fIsos;
//Cached meshes (will be used if geometry must be rebuilt
//after TPad::PaintModified)
MeshList_t fCache;
//Min and max bin contents.
Rgl::Range_t fMinMax;
//Palette. One color per iso-surface.
TGLLevelPalette fPalette;
//Iso levels. Equidistant or user-defined.
std::vector<Double_t> fColorLevels;
//Now meshes are initialized only once.
//To be changed in future.
Bool_t fInit;
public:
TGLIsoPainter(TH1 *hist, TGLPlotCamera *camera, TGLPlotCoordinates *coord);
//TGLPlotPainter final-overriders.
char *GetPlotInfo(Int_t px, Int_t py);
Bool_t InitGeometry();
void StartPan(Int_t px, Int_t py);
void Pan(Int_t px, Int_t py);
void AddOption(const TString &option);
void ProcessEvent(Int_t event, Int_t px, Int_t py);
private:
//TGLPlotPainter final-overriders.
void InitGL()const;
void DeInitGL()const;
void DrawPlot()const;
void DrawSectionXOZ()const;
void DrawSectionYOZ()const;
void DrawSectionXOY()const;
//Auxiliary methods.
Bool_t HasSections()const;
void SetSurfaceColor(Int_t ind)const;
void SetMesh(Mesh_t &mesh, Double_t isoValue);
void DrawMesh(const Mesh_t &mesh, Int_t level)const;
void FindMinMax();
TGLIsoPainter(const TGLIsoPainter &);
TGLIsoPainter &operator = (const TGLIsoPainter &);
ClassDef(TGLIsoPainter, 0) // Iso option for TH3.
};
#endif
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