include/root/TEveArrow.h

0001 // @(#)root/eve:$Id$
0002 // Author: Matevz Tadel 2007
0003
0004 /*************************************************************************
0005  * Copyright (C) 1995-2007, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011
0012 #ifndef ROOT_TEveArrow
0013 #define ROOT_TEveArrow
0014
0015 #include "TEveElement.h"
0016 #include "TEveVector.h"
0017 #include "TNamed.h"
0018 #include "TAtt3D.h"
0019 #include "TAttBBox.h"
0020
0021 class TEveArrow : public TEveElement,
0022                   public TNamed,
0023                   public TAtt3D,
0024                   public TAttBBox
0025 {
0026    friend class TEveArrowGL;
0027    friend class TEveArrowEditor;
0028
0029 private:
0030    TEveArrow(const TEveArrow&);            // Not implemented
0031    TEveArrow& operator=(const TEveArrow&); // Not implemented
0032
0033 protected:
0034    Color_t     fColor;
0035
0036    Float_t     fTubeR;
0037    Float_t     fConeR;
0038    Float_t     fConeL;
0039
0040    TEveVector  fOrigin;
0041    TEveVector  fVector;
0042
0043    Int_t       fDrawQuality; // Number of segments of circles.
0044
0045 public:
0046    TEveArrow(Float_t xVec=0, Float_t yVec=0, Float_t zVec=1,
0047              Float_t xOrg=0, Float_t yOrg=0, Float_t zOrg=0);
0048    ~TEveArrow() override {}
0049
0050    TObject* GetObject(const TEveException& ) const override
0051    { const TObject* obj = this; return const_cast<TObject*>(obj); }
0052
0053    void    StampGeom() { ResetBBox(); AddStamp(kCBTransBBox | kCBObjProps); }
0054
0055    Float_t GetTubeR() const { return fTubeR; }
0056    Float_t GetConeR() const { return fConeR; }
0057    Float_t GetConeL() const { return fConeL; }
0058
0059    void SetTubeR(Float_t x) { fTubeR = x; StampGeom(); }
0060    void SetConeR(Float_t x) { fConeR = x; StampGeom(); }
0061    void SetConeL(Float_t x) { fConeL = x; StampGeom(); }
0062
0063    TEveVector  GetOrigin() { return fOrigin; }
0064    TEveVector& RefOrigin() { return fOrigin; }
0065    TEveVector  GetVector() { return fVector; }
0066    TEveVector& RefVector() { return fVector; }
0067
0068    void SetOrigin(const TEveVector& o)             { fOrigin = o;          StampGeom(); }
0069    void SetOrigin(Float_t x, Float_t y, Float_t z) { fOrigin.Set(x, y, z); StampGeom(); }
0070    void SetVector(const TEveVector& v)             { fVector = v;          StampGeom(); }
0071    void SetVector(Float_t x, Float_t y, Float_t z) { fVector.Set(x, y, z); StampGeom(); }
0072
0073    Int_t GetDrawQuality() const  { return fDrawQuality; }
0074    void  SetDrawQuality(Int_t q) { fDrawQuality = q;    }
0075
0076    void ComputeBBox() override;
0077    void Paint(Option_t* option="") override;
0078
0079    ClassDefOverride(TEveArrow, 0); // Class for gl visualisation of arrow.
0080 };
0081
0082 #endif