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TGLParametric.h
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1 // @(#)root/gl:$Id$
2 // Author: Timur Pocheptsov 26/01/2007
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #ifndef ROOT_TGLParametric
13 #define ROOT_TGLParametric
14 
15 #include "TGLHistPainter.h"
16 #include "TGLUtil.h"
17 #include "TAxis.h"
18 #include "TF2.h"
19 
20 #include <memory>
21 
22 class TString;
23 
24 //////////////////////////////////////////////////////////////////////////
25 // //
26 // TGLParametricEquation //
27 // //
28 // Parametric equations drawing with GL. //
29 // //
30 //////////////////////////////////////////////////////////////////////////
31 
32 
34 
35 class TGLParametricEquation : public TNamed {
36 private:
37  typedef std::unique_ptr<TF2> Ptr_t;
38 
39  Ptr_t fXEquation;
40  Ptr_t fYEquation;
41  Ptr_t fZEquation;
42 
44 
47 
50 
51  typedef std::unique_ptr<TGLHistPainter> Painter_t;
52  //C++ compiler do not need TGLhistPainter definition here, but I'm not sure about CINT,
53  //so I've included TGLHistPainter definition.
54  Painter_t fPainter;
55 
56 public:
57  TGLParametricEquation(const TString &name, const TString &xEquation,
58  const TString &yEquation, const TString &zEquation,
59  Double_t uMin, Double_t uMax,
60  Double_t vMin, Double_t vMax);
62  Double_t uMin, Double_t uMax, Double_t vMin, Double_t vMax);
63 
64  Rgl::Range_t GetURange()const;
65  Rgl::Range_t GetVRange()const;
66 
67  Bool_t IsConstrained()const;
68  void SetConstrained(Bool_t c);
69 
70  Bool_t IsModified()const;
71  void SetModified(Bool_t m);
72 
73  void EvalVertex(TGLVertex3 &newVertex, Double_t u, Double_t v)const;
74 
76  void ExecuteEvent(Int_t event, Int_t px, Int_t py);
77  char *GetObjectInfo(Int_t px, Int_t py) const;
78  void Paint(Option_t *option);
79 
80 private:
81 
84 
85  ClassDef(TGLParametricEquation, 0)//Equation of parametric surface.
86 };
87 
89 private:
90  struct Vertex_t {
93  Float_t fRGBA[4];
94  };
95 
96  enum EMeshSize {kLow = 30, kHigh = 150};
97 
100 
103 
105 
109 
111 
112 public:
114 
115  Bool_t InitGeometry();
116  void StartPan(Int_t px, Int_t py);
117  void Pan(Int_t px, Int_t py);
118  char *GetPlotInfo(Int_t px, Int_t py);
119  void AddOption(const TString &option);
120  void ProcessEvent(Int_t event, Int_t px, Int_t py);
121 
122 private:
123  void InitGL()const;
124  void DeInitGL()const;
125 
126  void DrawPlot()const;
127 
128  void InitColors();
129 
130  void DrawSectionXOZ()const;
131  void DrawSectionYOZ()const;
132  void DrawSectionXOY()const;
133 
134  void SetSurfaceColor()const;
135 
138 
139  ClassDef(TGLParametricPlot, 0)//Parametric plot's painter.
140 };
141 
142 #endif
ParametricEquation_t fEquation
Definition: TGLParametric.h:43
Camera for TGLPlotPainter and sub-classes.
Definition: TGLPlotCamera.h:21
TGLParametricEquation & operator=(const TGLParametricEquation &)
TGLPlotCoordinates fCartesianCoord
float Float_t
Definition: RtypesCore.h:53
const char Option_t
Definition: RtypesCore.h:62
std::pair< Double_t, Double_t > Range_t
Definition: TGLUtil.h:1193
Bool_t IsConstrained() const
Check is constrained.
Rgl::Range_t GetURange() const
[uMin, uMax]
void SetConstrained(Bool_t c)
Set constrained.
Basic string class.
Definition: TString.h:129
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
void EvalVertex(TGLVertex3 &newVertex, Double_t u, Double_t v) const
Calculate vertex.
Int_t DistancetoPrimitive(Int_t px, Int_t py)
Check, if parametric surface is under cursor.
Rgl::Range_t fURange
Definition: TGLParametric.h:45
#define ClassDef(name, id)
Definition: Rtypes.h:297
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
3 component (x/y/z) vertex class.
Definition: TGLUtil.h:82
TGL2DArray< Vertex_t > fMesh
Definition: TGLParametric.h:99
std::unique_ptr< TGLHistPainter > Painter_t
Definition: TGLParametric.h:51
3 component (x/y/z) vector class.
Definition: TGLUtil.h:246
TGLParametricEquation(const TString &name, const TString &xEquation, const TString &yEquation, const TString &zEquation, Double_t uMin, Double_t uMax, Double_t vMin, Double_t vMax)
Surface is defined by three strings.
static const Float_t kHigh
Definition: PDEFoam.cxx:96
Rgl::Range_t GetVRange() const
[vMin, vMax]
Bool_t IsModified() const
Something was changed in parametric equation (or constrained option was changed). ...
TGLParametricEquation * fEquation
Class to manage histogram axis.
Definition: TAxis.h:30
SVector< double, 2 > v
Definition: Dict.h:5
void(* ParametricEquation_t)(TGLVertex3 &, Double_t u, Double_t v)
Definition: TGLParametric.h:33
Helper class for plot-painters holding information about axis ranges, numbers of bins and flags if ce...
TMarker * m
Definition: textangle.C:8
std::unique_ptr< TF2 > Ptr_t
Definition: TGLParametric.h:37
A parametric surface is a surface defined by a parametric equation, involving two parameters (u...
Definition: TGLParametric.h:35
Base class for plot-painters that provide GL rendering of various 2D and 3D histograms, functions and parametric surfaces.
void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Pass event to painter.
Rgl::Range_t fVRange
Definition: TGLParametric.h:46
double Double_t
Definition: RtypesCore.h:55
typedef void((*Func_t)())
void Paint(Option_t *option)
Delegate paint.
void SetModified(Bool_t m)
Set modified.
char * GetObjectInfo(Int_t px, Int_t py) const
No object info yet.