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0b936dc0 | 1 | #ifndef ALIMUONSEGMENT_H |
2 | #define ALIMUONSEGMENT_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice */ | |
6 | ||
7 | // $Id$ | |
8 | ||
9 | /// \ingroup geometry | |
10 | /// \class AliMUONSegment | |
11 | /// \brief A basic line segment, used for contour making algorithm(s) | |
12 | /// | |
13 | // author Laurent Aphecetche | |
14 | ||
15 | #ifndef ROOT_TObject | |
16 | # include "TObject.h" | |
17 | #endif | |
18 | ||
19 | class AliMUONSegment : public TObject | |
20 | { | |
21 | public: | |
22 | AliMUONSegment(); | |
23 | AliMUONSegment(Double_t xstart, Double_t ystart, Double_t xend, Double_t yend); | |
24 | virtual ~AliMUONSegment() {} | |
25 | ||
26 | virtual Int_t Compare(const TObject* obj) const; | |
27 | ||
28 | /// We are sortable | |
29 | virtual Bool_t IsSortable() const { return kTRUE; } | |
30 | ||
31 | /// Return the x-coordinate of our starting point | |
32 | Double_t StartX() const { return fStartX; } | |
33 | /// Return the y-coordinate of our starting point | |
34 | Double_t StartY() const { return fStartY; } | |
35 | /// Return the x-coordinate of our ending point | |
36 | Double_t EndX() const { return fEndX; } | |
37 | /// Return the y-coordinate of our ending point | |
38 | Double_t EndY() const { return fEndY; } | |
39 | ||
40 | /// Return our smallest y (of starting or ending point) | |
41 | double SmallerY() const { return fSmallerY; } | |
42 | ||
43 | /// Whether we are a horizontal segment | |
44 | Bool_t IsHorizontal() const { return fIsHorizontal; } | |
45 | ||
46 | /// Whethere we are a vertical segment | |
47 | Bool_t IsVertical() const { return fIsVertical; } | |
48 | ||
49 | /// Whether we are a left edge | |
50 | Bool_t IsLeftEdge() const { return fIsLeftEdge; } | |
51 | ||
52 | /// Whether we are a right edge | |
53 | Bool_t IsRightEdge() const { return fIsRightEdge; } | |
54 | ||
55 | /// Return our bottom y | |
56 | double Bottom() const { return SmallerY(); } | |
57 | ||
58 | double Top() const; | |
59 | ||
60 | double Distance() const; | |
61 | ||
62 | /// Whether we're just a point | |
63 | Bool_t IsAPoint() const { return fIsAPoint; } | |
64 | ||
65 | const char* AsString() const; | |
66 | ||
67 | static Bool_t AreEqual(double a, double b); | |
68 | ||
69 | void Print(Option_t* opt="") const; | |
70 | ||
71 | void Set(Double_t xstart, Double_t ystart, Double_t xend, Double_t yend); | |
72 | ||
73 | private: | |
74 | Double_t fStartX; /// x of start point | |
75 | Double_t fStartY; /// y of start point | |
76 | Double_t fEndX; /// x of end point | |
77 | Double_t fEndY; /// y of end point | |
78 | Double_t fSmallerY; /// Either StartY or EndY | |
79 | Bool_t fIsHorizontal; /// Whether the segment is horizontal | |
80 | Bool_t fIsVertical; /// Whether the segment is vertical | |
81 | Bool_t fIsLeftEdge; /// Whether the segment is a left edge | |
82 | Bool_t fIsRightEdge; /// Whether the segment is a right edge | |
83 | Bool_t fIsAPoint; /// Whether start==end | |
84 | ||
85 | static const Double_t fgkPrecision; /// Floating point precision used in comparisons | |
86 | ||
87 | ClassDef(AliMUONSegment,1) // A basic line segment | |
88 | }; | |
89 | ||
90 | ||
91 | #endif |