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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // $Id$ | |
17 | // $MpId: AliMpSectorAreaHPadIterator.cxx,v 1.7 2006/05/24 13:58:46 ivana Exp $ | |
18 | // Category: sector | |
19 | ||
20 | //----------------------------------------------------------------------------- | |
21 | // Class AliMpSectorAreaHPadIterator | |
22 | // --------------------------------- | |
23 | // Class, which defines an iterator over the pads | |
24 | // inside a given area in a sector in horizontal direction. | |
25 | // Included in AliRoot: 2003/05/02 | |
26 | // Authors: David Guez, Ivana Hrivnacova; IPN Orsay | |
27 | //----------------------------------------------------------------------------- | |
28 | ||
29 | #include "AliMpSectorAreaHPadIterator.h" | |
30 | #include "AliMpSectorSegmentation.h" | |
31 | #include "AliMpConstants.h" | |
32 | ||
33 | #include <Riostream.h> | |
34 | ||
35 | /// \cond CLASSIMP | |
36 | ClassImp(AliMpSectorAreaHPadIterator) | |
37 | /// \endcond | |
38 | ||
39 | //______________________________________________________________________________ | |
40 | AliMpSectorAreaHPadIterator::AliMpSectorAreaHPadIterator( | |
41 | const AliMpSectorSegmentation* segmentation, | |
42 | const AliMpArea& area) | |
43 | : AliMpVPadIterator(), | |
44 | fkSegmentation(segmentation), | |
45 | fkArea(area), | |
46 | fCurrentPad(AliMpPad::Invalid()), | |
47 | fCurrentRowPosition(0.) | |
48 | { | |
49 | /// Standard constructor, start in invalid position | |
50 | } | |
51 | ||
52 | //______________________________________________________________________________ | |
53 | AliMpSectorAreaHPadIterator::AliMpSectorAreaHPadIterator( | |
54 | const AliMpSectorAreaHPadIterator& right) | |
55 | : AliMpVPadIterator(right), | |
56 | fkSegmentation(0), | |
57 | fkArea(AliMpArea()), | |
58 | fCurrentPad(AliMpPad::Invalid()), | |
59 | fCurrentRowPosition(0.) | |
60 | { | |
61 | /// Copy constructor | |
62 | ||
63 | *this = right; | |
64 | } | |
65 | ||
66 | //______________________________________________________________________________ | |
67 | AliMpSectorAreaHPadIterator::AliMpSectorAreaHPadIterator() | |
68 | : AliMpVPadIterator(), | |
69 | fkSegmentation(0), | |
70 | fkArea(AliMpArea()), | |
71 | fCurrentPad(AliMpPad::Invalid()), | |
72 | fCurrentRowPosition(0.) | |
73 | { | |
74 | /// Default constructor. | |
75 | } | |
76 | ||
77 | //______________________________________________________________________________ | |
78 | AliMpSectorAreaHPadIterator::~AliMpSectorAreaHPadIterator() | |
79 | { | |
80 | /// Destructor | |
81 | } | |
82 | ||
83 | // | |
84 | // operators | |
85 | // | |
86 | ||
87 | //______________________________________________________________________________ | |
88 | AliMpSectorAreaHPadIterator& | |
89 | AliMpSectorAreaHPadIterator::operator = (const AliMpSectorAreaHPadIterator& right) | |
90 | { | |
91 | /// Assignment operator | |
92 | ||
93 | // check assignment to self | |
94 | if (this == &right) return *this; | |
95 | ||
96 | // base class assignment | |
97 | AliMpVPadIterator::operator=(right); | |
98 | ||
99 | fkSegmentation = right.fkSegmentation; | |
100 | fkArea = right.fkArea; | |
101 | fCurrentPad = right.fCurrentPad; | |
102 | fCurrentRowPosition = right.fCurrentRowPosition; | |
103 | ||
104 | return *this; | |
105 | } | |
106 | ||
107 | // | |
108 | // private methods | |
109 | // | |
110 | ||
111 | //______________________________________________________________________________ | |
112 | Bool_t AliMpSectorAreaHPadIterator::IsValid() const | |
113 | { | |
114 | /// Is the iterator in a valid position? | |
115 | ||
116 | return fCurrentPad.IsValid() ; | |
117 | } | |
118 | ||
119 | //______________________________________________________________________________ | |
120 | void AliMpSectorAreaHPadIterator::MoveUp() | |
121 | { | |
122 | /// Increase the current row position and searches the first valid pad. | |
123 | ||
124 | Double_t dy = fkSegmentation->GetMinPadDimensions().Y(); | |
125 | ||
126 | while ( !fCurrentPad.IsValid() && | |
127 | fCurrentRowPosition + dy < fkArea.UpBorder()) | |
128 | { | |
129 | fCurrentRowPosition += 2.*dy; | |
130 | TVector2 position = TVector2(fkArea.LeftBorder(), fCurrentRowPosition); | |
131 | ||
132 | fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.RightBorder()); | |
133 | } | |
134 | } | |
135 | ||
136 | // | |
137 | // public methods | |
138 | // | |
139 | ||
140 | //______________________________________________________________________________ | |
141 | void AliMpSectorAreaHPadIterator::First() | |
142 | { | |
143 | /// Reset the iterator, so that it points to the first available | |
144 | /// pad in the area | |
145 | ||
146 | if (!fkSegmentation) { | |
147 | Fatal("First", "Segmentation is not defined"); | |
148 | return; | |
149 | } | |
150 | ||
151 | // Start position = left down corner of the area | |
152 | // | |
153 | fCurrentRowPosition = fkArea.DownBorder(); | |
154 | TVector2 position(fkArea.LeftDownCorner()); | |
155 | ||
156 | fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.RightBorder()); | |
157 | ||
158 | MoveUp(); | |
159 | ||
160 | // Set the row position to the center of pad | |
161 | // | |
162 | if (fCurrentPad.IsValid()) fCurrentRowPosition = fCurrentPad.Position().Y(); | |
163 | } | |
164 | ||
165 | //______________________________________________________________________________ | |
166 | void AliMpSectorAreaHPadIterator::Next() | |
167 | { | |
168 | /// Move the iterator to the next valid pad. | |
169 | ||
170 | if (!IsValid()) return; | |
171 | ||
172 | // Start position = right board of current pad + little step | |
173 | // | |
174 | TVector2 position | |
175 | = fCurrentPad.Position() | |
176 | + TVector2(fCurrentPad.Dimensions().X() + AliMpConstants::LengthStep(), 0.); | |
177 | ||
178 | fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.RightBorder()); | |
179 | ||
180 | if (fCurrentPad.IsValid()) return; | |
181 | ||
182 | MoveUp(); | |
183 | } | |
184 | ||
185 | //______________________________________________________________________________ | |
186 | Bool_t AliMpSectorAreaHPadIterator::IsDone() const | |
187 | { | |
188 | /// Is the iterator in the end ? | |
189 | ||
190 | return !IsValid(); | |
191 | } | |
192 | ||
193 | //______________________________________________________________________________ | |
194 | AliMpPad AliMpSectorAreaHPadIterator::CurrentItem () const | |
195 | { | |
196 | /// Return current pad. | |
197 | ||
198 | return fCurrentPad; | |
199 | } | |
200 | //______________________________________________________________________________ | |
201 | void AliMpSectorAreaHPadIterator::Invalidate() | |
202 | { | |
203 | /// Let the iterator point to the invalid position | |
204 | ||
205 | fCurrentPad = AliMpPad::Invalid(); | |
206 | fCurrentRowPosition = 0; | |
207 | } | |
208 | ||
209 | ||
210 |