Fixes for coverity.
[u/mrichter/AliRoot.git] / STEER / STEER / AliAlignObjParams.cxx
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befe2c08 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//-----------------------------------------------------------------
17// Implementation of the alignment object class through
18// the concrete representation of alignment object class
90dbf5fb 19// AliAlignObjParams derived from the base class AliAlignObj
befe2c08 20//-----------------------------------------------------------------
21
22#include "AliAlignObj.h"
90dbf5fb 23#include "AliAlignObjParams.h"
befe2c08 24
90dbf5fb 25ClassImp(AliAlignObjParams)
befe2c08 26
27//_____________________________________________________________________________
90dbf5fb 28AliAlignObjParams::AliAlignObjParams() : AliAlignObj()
befe2c08 29{
30 // default constructor
31 //
32 fTranslation[0]=fTranslation[1]=fTranslation[2]=0.;
33 fRotation[0]=fRotation[1]=fRotation[2]=0.;
34}
35
36//_____________________________________________________________________________
90dbf5fb 37AliAlignObjParams::AliAlignObjParams(const char* symname, UShort_t volUId, Double_t x, Double_t y, Double_t z, Double_t psi, Double_t theta, Double_t phi, Bool_t global) throw (const Char_t *) : AliAlignObj(symname,volUId)
befe2c08 38{
39 // standard constructor with 3 translation + 3 rotation parameters
48c8e89a 40 // If the user explicitly sets the global variable to kFALSE then the
41 // parameters are interpreted as giving the local transformation.
42 // This requires to have a gGeoMenager active instance, otherwise the
43 // constructor will fail (no object created)
44 //
48c8e89a 45 if(global){
b760c02e 46 SetPars(x, y, z, psi, theta, phi);
48c8e89a 47 }else{
48 if(!SetLocalPars(x,y,z,psi,theta,phi)) throw "Alignment object creation failed (TGeo instance needed)!\n";
49 }
befe2c08 50}
51
52//_____________________________________________________________________________
90dbf5fb 53AliAlignObjParams::AliAlignObjParams(const char* symname, UShort_t volUId, TGeoMatrix& m, Bool_t global) throw (const Char_t *) : AliAlignObj(symname,volUId)
befe2c08 54{
55 // standard constructor with TGeoMatrix
b760c02e 56 // If the user explicitly sets the global variable to kFALSE then the
57 // parameters are interpreted as giving the local transformation.
58 // This requires to have a gGeoMenager active instance, otherwise the
59 // constructor will fail (no object created)
befe2c08 60 //
befe2c08 61
b760c02e 62 if (!SetMatrix(m)) throw "Alignment object creation failed (can't extract roll-pitch-yall angles from the matrix)!\n";
63
64 if (!global) {
65 if (!SetLocalPars(fTranslation[0],fTranslation[1],fTranslation[2],fRotation[0],fRotation[1],fRotation[2])) throw "Alignment object creation failed (TGeo instance needed)!\n";
66 }
d9cc42ed 67}
68
69//_____________________________________________________________________________
90dbf5fb 70AliAlignObjParams::AliAlignObjParams(const AliAlignObj& theAlignObj) :
befe2c08 71 AliAlignObj(theAlignObj)
72{
73 // copy constructor
74 //
75 Double_t tr[3];
76 theAlignObj.GetTranslation(tr);
77 SetTranslation(tr[0],tr[1],tr[2]);
78 Double_t rot[3];
b760c02e 79 if (theAlignObj.GetAngles(rot))
80 SetRotation(rot[0],rot[1],rot[2]);
ec42f420 81 else
82 fRotation[0]=fRotation[1]=fRotation[2]=0.;
befe2c08 83}
84
85//_____________________________________________________________________________
90dbf5fb 86AliAlignObjParams &AliAlignObjParams::operator =(const AliAlignObj& theAlignObj)
befe2c08 87{
88 // assignment operator
89 //
90 if(this==&theAlignObj) return *this;
91 ((AliAlignObj *)this)->operator=(theAlignObj);
92
93 Double_t tr[3];
94 theAlignObj.GetTranslation(tr);
95 SetTranslation(tr[0],tr[1],tr[2]);
96 Double_t rot[3];
b760c02e 97 if (theAlignObj.GetAngles(rot))
98 SetRotation(rot[0],rot[1],rot[2]);
99
befe2c08 100 return *this;
101}
102
103//_____________________________________________________________________________
90dbf5fb 104AliAlignObjParams::~AliAlignObjParams()
befe2c08 105{
106 // default destructor
107 //
108}
109
110//_____________________________________________________________________________
90dbf5fb 111void AliAlignObjParams::SetTranslation(const TGeoMatrix& m)
befe2c08 112{
ff2dbca1 113 // set the translation parameters extracting them from the matrix
114 // passed as argument
115 //
befe2c08 116 if(m.IsTranslation()){
117 const Double_t* tr = m.GetTranslation();
118 fTranslation[0]=tr[0]; fTranslation[1]=tr[1]; fTranslation[2]=tr[2];
119 }else{
befe2c08 120 fTranslation[0] = fTranslation[1] = fTranslation[2] = 0.;
121 }
122}
123
124//_____________________________________________________________________________
90dbf5fb 125Bool_t AliAlignObjParams::SetRotation(const TGeoMatrix& m)
befe2c08 126{
ff2dbca1 127 // set the rotation parameters extracting them from the matrix
128 // passed as argument
129 //
befe2c08 130 if(m.IsRotation()){
131 const Double_t* rot = m.GetRotationMatrix();
132 return MatrixToAngles(rot,fRotation);
133 }else{
befe2c08 134 fRotation[0] = fRotation[1] = fRotation[2] = 0.;
135 return kTRUE;
136 }
137}
138
139//_____________________________________________________________________________
90dbf5fb 140void AliAlignObjParams::GetMatrix(TGeoHMatrix& m) const
befe2c08 141{
ff2dbca1 142 // get the transformation matrix from the data memebers parameters
befe2c08 143 m.SetTranslation(&fTranslation[0]);
144 Double_t rot[9];
145 AnglesToMatrix(fRotation,rot);
146 m.SetRotation(rot);
147}
148
03b18860 149//_____________________________________________________________________________
90dbf5fb 150AliAlignObj& AliAlignObjParams::Inverse() const
03b18860 151{
ff2dbca1 152 // Return a temporary "inverse" of the alignment object, that is return
153 // an object with inverted transformation matrix.
154 //
90dbf5fb 155 static AliAlignObjParams a;
03b18860 156 a = *this;
157
158 TGeoHMatrix m;
159 GetMatrix(m);
160 a.SetMatrix(m.Inverse());
161
162 return a;
163}