root/ROOT/REveLine.hxx

0001 // @(#)root/eve7:$Id$
0002 // Authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007, 2018
0003
0004 /*************************************************************************
0005  * Copyright (C) 1995-2019, 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 ROOT7_REveLine
0013 #define ROOT7_REveLine
0014
0015 #include <ROOT/REvePointSet.hxx>
0016 #include <ROOT/REveVector.hxx>
0017
0018 #include "TAttLine.h"
0019
0020 namespace ROOT {
0021 namespace Experimental {
0022
0023 ////////////////////////////////////////////////////////////////////////////////
0024 /// REveLine
0025 /// An arbitrary polyline with fixed line and marker attributes.
0026 ////////////////////////////////////////////////////////////////////////////////
0027
0028 class REveLine : public REvePointSet,
0029                  public TAttLine
0030 {
0031 private:
0032    REveLine &operator=(const REveLine &) = delete;
0033
0034 protected:
0035    Bool_t fRnrLine;
0036    Bool_t fRnrPoints;
0037    Bool_t fSmooth;
0038
0039    static Bool_t fgDefaultSmooth;
0040
0041 public:
0042    REveLine(const std::string &name = "", const std::string &title = "", Int_t n_points = 0);
0043    REveLine(const REveLine &l);
0044    ~REveLine() override {}
0045
0046    void SetMarkerColor(Color_t col) override;
0047
0048    void SetLineColor(Color_t col) override { SetMainColor(col); }
0049    void SetLineStyle(Style_t lstyle) override;
0050    void SetLineWidth(Width_t lwidth) override;
0051
0052    Bool_t GetRnrLine() const { return fRnrLine; }
0053    Bool_t GetRnrPoints() const { return fRnrPoints; }
0054    Bool_t GetSmooth() const { return fSmooth; }
0055    void   SetRnrLine(Bool_t r);
0056    void   SetRnrPoints(Bool_t r);
0057    void   SetSmooth(Bool_t r);
0058
0059    void    ReduceSegmentLengths(Float_t max);
0060    Float_t CalculateLineLength() const;
0061
0062    REveVector GetLineStart() const;
0063    REveVector GetLineEnd() const;
0064
0065    void CopyVizParams(const REveElement *el) override;
0066    void WriteVizParams(std::ostream &out, const TString &var) override;
0067
0068    TClass *ProjectedClass(const REveProjection *p) const override;
0069
0070    Int_t WriteCoreJson(nlohmann::json &cj, Int_t rnr_offset) override;
0071    void BuildRenderData() override;
0072
0073    static Bool_t GetDefaultSmooth();
0074    static void SetDefaultSmooth(Bool_t r);
0075 };
0076
0077 //------------------------------------------------------------------------------
0078 // REveLineProjected
0079 //------------------------------------------------------------------------------
0080
0081 class REveLineProjected : public REveLine, public REveProjected {
0082 private:
0083    REveLineProjected(const REveLineProjected &) = delete;
0084    REveLineProjected &operator=(const REveLineProjected &) = delete;
0085
0086 protected:
0087    void SetDepthLocal(Float_t d) override;
0088
0089 public:
0090    REveLineProjected();
0091    ~REveLineProjected() override {}
0092
0093    void SetProjection(REveProjectionManager *mng, REveProjectable *model) override;
0094    void UpdateProjection() override;
0095    REveElement *GetProjectedAsElement() override { return this; }
0096 };
0097
0098 } // namespace Experimental
0099 } // namespace ROOT
0100
0101 #endif