4 // Class AliMpSectorAreaVPadIterator
5 // ---------------------------------
6 // Class, which defines an iterator over the pads
7 // inside a given area in a sector in vertical direction.
9 // Authors: David Guez, Ivana Hrivnacova; IPN Orsay
11 #include <Riostream.h>
13 #include "AliMpSectorAreaVPadIterator.h"
14 #include "AliMpSectorSegmentation.h"
15 #include "AliMpConstants.h"
17 ClassImp(AliMpSectorAreaVPadIterator)
19 //______________________________________________________________________________
20 AliMpSectorAreaVPadIterator::AliMpSectorAreaVPadIterator(
21 const AliMpSectorSegmentation* segmentation,
22 const AliMpArea& area)
23 : AliMpVPadIterator(),
24 fkSegmentation(segmentation),
26 fCurrentPad(AliMpPad::Invalid()),
27 fCurrentColumnPosition(0.)
29 // normal constructor, start in invalid position
32 //______________________________________________________________________________
33 AliMpSectorAreaVPadIterator::AliMpSectorAreaVPadIterator(
34 const AliMpSectorAreaVPadIterator& right)
35 : AliMpVPadIterator(right)
39 Fatal("Copy constructor", "Not implemented");
42 //______________________________________________________________________________
43 AliMpSectorAreaVPadIterator::AliMpSectorAreaVPadIterator()
44 : AliMpVPadIterator(),
47 fCurrentPad(AliMpPad::Invalid()),
48 fCurrentColumnPosition(0.)
50 // Dummy default constructor.
53 //______________________________________________________________________________
54 AliMpSectorAreaVPadIterator::~AliMpSectorAreaVPadIterator()
63 //______________________________________________________________________________
64 AliMpSectorAreaVPadIterator&
65 AliMpSectorAreaVPadIterator::operator = (const AliMpSectorAreaVPadIterator& right)
67 // Assignement operator
69 // check assignement to self
70 if (this == &right) return *this;
72 // base class assignement
73 AliMpVPadIterator::operator=(right);
75 fkSegmentation = right.fkSegmentation;
76 fkArea = right.fkArea;
77 fCurrentPad = right.fCurrentPad;
78 fCurrentColumnPosition = right.fCurrentColumnPosition;
87 //______________________________________________________________________________
88 Bool_t AliMpSectorAreaVPadIterator::IsValid() const
90 // Is the iterator in a valid position?
93 return fCurrentPad.IsValid() ;
96 //______________________________________________________________________________
97 void AliMpSectorAreaVPadIterator::MoveRight()
99 // Increase the current row position and searches the first valid pad.
102 Double_t step = 2.* fkSegmentation->GetMinPadDimensions().X();
104 while ( !fCurrentPad.IsValid() &&
105 fCurrentColumnPosition + step < fkArea.RightBorder())
107 //cout << "######### Move right ##########" << endl;
109 fCurrentColumnPosition += step;
110 TVector2 position = TVector2(fCurrentColumnPosition, fkArea.DownBorder());
112 fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.UpBorder());
120 //______________________________________________________________________________
121 void AliMpSectorAreaVPadIterator::First()
123 // Reset the iterator, so that it points to the first available
127 if (!fkSegmentation) {
128 Fatal("First", "Segmentation is not defined");
132 // Start position = left down corner of the area
134 fCurrentColumnPosition = fkArea.DownBorder();
135 TVector2 position(fkArea.LeftDownCorner());
137 fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.UpBorder());
141 // Set the column position to the center of pad
143 if (fCurrentPad.IsValid()) fCurrentColumnPosition = fCurrentPad.Position().X();
146 //______________________________________________________________________________
147 void AliMpSectorAreaVPadIterator::Next()
149 // Move the iterator to the next valid pad.
152 if (!IsValid()) return;
154 // Start position = up board of current pad + little step
157 = fCurrentPad.Position()
158 + TVector2(0., fCurrentPad.Dimensions().Y() + AliMpConstants::LengthStep());
160 fCurrentPad = fkSegmentation->PadByDirection(position, fkArea.UpBorder());
162 if (fCurrentPad.IsValid()) return;
167 //______________________________________________________________________________
168 Bool_t AliMpSectorAreaVPadIterator::IsDone() const
174 //______________________________________________________________________________
175 AliMpPad AliMpSectorAreaVPadIterator::CurrentItem () const
177 // Returns current pad.
182 //______________________________________________________________________________
183 void AliMpSectorAreaVPadIterator::Invalidate()
186 fCurrentPad = AliMpPad::Invalid();
187 fCurrentColumnPosition = 0;