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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: AliMpArea.cxx,v 1.8 2006/05/24 13:58:29 ivana Exp $ | |
18 | // Category: basic | |
19 | ||
20 | //----------------------------------------------------------------------------- | |
21 | // Class AliMpArea | |
22 | // ---------------- | |
23 | // Class that defines a rectangle area positioned in plane.. | |
24 | // Included in AliRoot: 2003/05/02 | |
25 | // Authors: David Guez, Ivana Hrivnacova; IPN Orsay | |
26 | //----------------------------------------------------------------------------- | |
27 | ||
28 | #include "AliMpArea.h" | |
29 | ||
30 | #include "AliLog.h" | |
31 | #include "AliMpConstants.h" | |
32 | ||
33 | #include <Riostream.h> | |
34 | ||
35 | using std::cout; | |
36 | using std::endl; | |
37 | /// \cond CLASSIMP | |
38 | ClassImp(AliMpArea) | |
39 | /// \endcond | |
40 | ||
41 | //_____________________________________________________________________________ | |
42 | AliMpArea::AliMpArea(Double_t x, Double_t y, | |
43 | Double_t dx, Double_t dy) | |
44 | : TObject(), | |
45 | fPositionX(x), | |
46 | fPositionY(y), | |
47 | fDimensionX(dx), | |
48 | fDimensionY(dy), | |
49 | fValidity(true) | |
50 | { | |
51 | /// Standard constructor | |
52 | ||
53 | // Check dimensions | |
54 | if ( fDimensionX < - AliMpConstants::LengthTolerance() || | |
55 | fDimensionY < - AliMpConstants::LengthTolerance() || | |
56 | ( fDimensionX < AliMpConstants::LengthTolerance() && | |
57 | fDimensionY < AliMpConstants::LengthTolerance() ) ) | |
58 | { | |
59 | fDimensionX = 0.; | |
60 | fDimensionY = 0.; | |
61 | fValidity = false; | |
62 | } | |
63 | } | |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | AliMpArea::AliMpArea() | |
67 | : TObject(), | |
68 | fPositionX(0.), | |
69 | fPositionY(0.), | |
70 | fDimensionX(0.), | |
71 | fDimensionY(0.), | |
72 | fValidity(false) | |
73 | { | |
74 | /// Default constructor | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | AliMpArea::AliMpArea(const AliMpArea& rhs): | |
79 | TObject(rhs), | |
80 | fPositionX(rhs.fPositionX), | |
81 | fPositionY(rhs.fPositionY), | |
82 | fDimensionX(rhs.fDimensionX), | |
83 | fDimensionY(rhs.fDimensionY), | |
84 | fValidity(rhs.fValidity) | |
85 | { | |
86 | /// Copy constructor | |
87 | } | |
88 | ||
89 | //_____________________________________________________________________________ | |
90 | AliMpArea::~AliMpArea() | |
91 | { | |
92 | /// Destructor | |
93 | } | |
94 | ||
95 | // | |
96 | // operators | |
97 | // | |
98 | ||
99 | //______________________________________________________________________________ | |
100 | AliMpArea& AliMpArea::operator = (const AliMpArea& right) | |
101 | { | |
102 | /// Assignment operator | |
103 | ||
104 | // check assignment to self | |
105 | if (this == &right) return *this; | |
106 | ||
107 | // base class assignment | |
108 | TObject::operator=(right); | |
109 | ||
110 | fPositionX = right.fPositionX; | |
111 | fPositionY = right.fPositionY; | |
112 | fDimensionX = right.fDimensionX; | |
113 | fDimensionY = right.fDimensionY; | |
114 | fValidity = right.fValidity; | |
115 | ||
116 | return *this; | |
117 | } | |
118 | ||
119 | // | |
120 | // public methods | |
121 | // | |
122 | ||
123 | //_____________________________________________________________________________ | |
124 | Double_t AliMpArea::LeftBorder() const | |
125 | { | |
126 | /// Return the position of the left edge. | |
127 | ||
128 | return fPositionX - fDimensionX; | |
129 | } | |
130 | ||
131 | //_____________________________________________________________________________ | |
132 | Double_t AliMpArea::RightBorder() const | |
133 | { | |
134 | /// Return the position of right edge. | |
135 | ||
136 | return fPositionX + fDimensionX; | |
137 | } | |
138 | ||
139 | //_____________________________________________________________________________ | |
140 | Double_t AliMpArea::UpBorder() const | |
141 | { | |
142 | /// Return the position of the up edge. | |
143 | ||
144 | return fPositionY + fDimensionY; | |
145 | } | |
146 | ||
147 | //_____________________________________________________________________________ | |
148 | Double_t AliMpArea::DownBorder() const | |
149 | { | |
150 | /// Return the position of the down edge. | |
151 | ||
152 | return fPositionY - fDimensionY; | |
153 | } | |
154 | ||
155 | //_____________________________________________________________________________ | |
156 | void AliMpArea::LeftDownCorner(Double_t& x, Double_t& y) const | |
157 | { | |
158 | /// Return position of the left down corner. | |
159 | ||
160 | x = LeftBorder(); | |
161 | y = DownBorder(); | |
162 | } | |
163 | ||
164 | //_____________________________________________________________________________ | |
165 | void AliMpArea::LeftUpCorner(Double_t& x, Double_t& y) const | |
166 | { | |
167 | /// Return position of the left up corner. | |
168 | ||
169 | x = LeftBorder(); | |
170 | y = UpBorder(); | |
171 | } | |
172 | ||
173 | //_____________________________________________________________________________ | |
174 | void AliMpArea::RightDownCorner(Double_t& x, Double_t& y) const | |
175 | { | |
176 | /// Return position of the right down corner. | |
177 | ||
178 | x = RightBorder(); | |
179 | y = DownBorder(); | |
180 | } | |
181 | ||
182 | ||
183 | //_____________________________________________________________________________ | |
184 | void AliMpArea::RightUpCorner(Double_t& x, Double_t& y) const | |
185 | { | |
186 | /// Return position of the right up corner. | |
187 | ||
188 | x = RightBorder(); | |
189 | y = UpBorder(); | |
190 | } | |
191 | ||
192 | //_____________________________________________________________________________ | |
193 | Bool_t AliMpArea::Contains(const AliMpArea& area) const | |
194 | { | |
195 | /// Whether area is contained within this | |
196 | ||
197 | // return | |
198 | // ( area.LeftBorder() > LeftBorder() - AliMpConstants::LengthTolerance() && | |
199 | // area.RightBorder() < RightBorder() + AliMpConstants::LengthTolerance() && | |
200 | // area.DownBorder() > DownBorder() - AliMpConstants::LengthTolerance() && | |
201 | // area.UpBorder() < UpBorder() + AliMpConstants::LengthTolerance() ); | |
202 | ||
203 | if ( area.LeftBorder() < LeftBorder() || | |
204 | area.RightBorder() > RightBorder() || | |
205 | area.DownBorder() < DownBorder() || | |
206 | area.UpBorder() > UpBorder() ) | |
207 | { | |
208 | return kFALSE; | |
209 | } | |
210 | else | |
211 | { | |
212 | return kTRUE; | |
213 | } | |
214 | } | |
215 | ||
216 | //_____________________________________________________________________________ | |
217 | AliMpArea AliMpArea::Intersect(const AliMpArea& area) const | |
218 | { | |
219 | /// Return the common part of area and this | |
220 | ||
221 | Double_t xmin = TMath::Max(area.LeftBorder(),LeftBorder()); | |
222 | Double_t xmax = TMath::Min(area.RightBorder(),RightBorder()); | |
223 | Double_t ymin = TMath::Max(area.DownBorder(),DownBorder()); | |
224 | Double_t ymax = TMath::Min(area.UpBorder(),UpBorder()); | |
225 | ||
226 | return AliMpArea( (xmin+xmax)/2.0, (ymin+ymax)/2.0 , | |
227 | (xmax-xmin)/2.0, (ymax-ymin)/2.0 ); | |
228 | } | |
229 | ||
230 | //_____________________________________________________________________________ | |
231 | Bool_t AliMpArea::Overlap(const AliMpArea& area) const | |
232 | { | |
233 | /// Return true if this overlaps with given area | |
234 | ||
235 | if ( LeftBorder() > area.RightBorder() - AliMpConstants::LengthTolerance() || | |
236 | RightBorder() < area.LeftBorder() + AliMpConstants::LengthTolerance() ) | |
237 | { | |
238 | return kFALSE; | |
239 | } | |
240 | ||
241 | if ( DownBorder() > area.UpBorder() - AliMpConstants::LengthTolerance() || | |
242 | UpBorder() < area.DownBorder() + AliMpConstants::LengthTolerance() ) | |
243 | { | |
244 | return kFALSE; | |
245 | } | |
246 | return kTRUE; | |
247 | ||
248 | } | |
249 | ||
250 | //_____________________________________________________________________________ | |
251 | void | |
252 | AliMpArea::Print(Option_t* opt) const | |
253 | { | |
254 | /// Printing | |
255 | /// When option is set to B (borders), the area boreders will be printed | |
256 | /// instead of default parameters | |
257 | ||
258 | ||
259 | if ( opt[0] == 'B' ) { | |
260 | cout << "Area x-borders: (" | |
261 | << LeftBorder() << ", " << RightBorder() << ") " | |
262 | << " y-borders: (" | |
263 | << DownBorder() << ", " << UpBorder() << ") " | |
264 | << endl; | |
265 | return; | |
266 | ||
267 | } | |
268 | ||
269 | cout << (*this) << endl; | |
270 | } | |
271 | ||
272 | //_____________________________________________________________________________ | |
273 | void | |
274 | AliMpArea::GetParameters(Double_t& x, Double_t& y, | |
275 | Double_t& dx, Double_t& dy) const | |
276 | { | |
277 | /// Fill the parameters: x, y position and dimensions | |
278 | ||
279 | x = fPositionX; | |
280 | y = fPositionY; | |
281 | dx = fDimensionX; | |
282 | dy = fDimensionY; | |
283 | } | |
284 | ||
285 | //_____________________________________________________________________________ | |
286 | ostream& operator<< (ostream &stream,const AliMpArea& area) | |
287 | { | |
288 | /// Output streaming | |
289 | ||
290 | stream << "Area: position: (" | |
291 | << area.GetPositionX() << ", " << area.GetPositionY() << ") " | |
292 | << " dimensions: (" | |
293 | << area.GetDimensionX() << ", " << area.GetDimensionY() << ") " | |
294 | << " valid: " << (area.IsValid()==true ? "YES":"NO") | |
295 | << endl; | |
296 | return stream; | |
297 | } | |
298 |