[u/mrichter/AliRoot.git] / ITS / AliITSGeant3Geometry.cxx

/* *************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/*
$Log:

*/

/* 
 *  Version: 0
 *  Written by Bjorn S. Nilsen with code stolen from Andreas Morsch's
 *  AliGeant3GeometryGUI class.
 */

#include <ctype.h>
#include "AliITSGeant3Geometry.h"

ClassImp(AliITSGeant3Geometry)

AliITSGeant3Geometry::AliITSGeant3Geometry(){
// Constructor

//  Store local copy of zebra bank entries
    TGeant3 *geant3 = (TGeant3*) gMC;
    if(geant3){
	fZlq    = geant3->Lq();
	fZq     = geant3->Q();
	fZiq    = geant3->Iq();
	fGclink = geant3->Gclink();
	fGcnum  = geant3->Gcnum();
	fGcvolu = geant3->Gcvolu();
    } // end if
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::NChildren(Int_t idvol){
//
// Return number of children for volume idvol
    Int_t jvo = fZlq[fGclink->jvolum-idvol];
    Int_t nin = Int_t(fZq[jvo+3]);
    return nin;
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::GetShape(Int_t idvol,Int_t &npar,Int_t &natt,
				     Float_t *par,Float_t *att){
// Returns the Geant shape number for a given volume
    Int_t ishape,i;

    Int_t jvo = fZlq[fGclink->jvolum-idvol];
//    Int_t nin = Int_t(fZq[jvo+3]);
    ishape = Int_t(fZq[jvo+2]);
    npar   = Int_t(fZq[jvo+5]);
    natt   = Int_t(fZq[jvo+6]);
    for(i=0;i<npar;i++) par[i] = fZq[jvo+7+i];
    for(i=0;i<natt;i++) att[i] = fZq[jvo+7+npar+i];
//    if(nin<0){ // devided volumes
//	printf("Divisions nin=%d\n",nin);
//    }else{
//	printf("SubVolumes nin=%d\n",nin);
//    } // end if
    return ishape;
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::Child(Int_t idvol, Int_t idc){
//
// Return GEANT id of child number idc of volume idvol
    Int_t jvo = fZlq[fGclink->jvolum-idvol];
    Int_t nin=idc;
    Int_t jin = fZlq[jvo-nin];
    Int_t numb =  Int_t(fZq[jin +3]);
    if (numb > 1) {
	return -Int_t(fZq[jin+2]);
    } else {
	return Int_t(fZq[jin+2]);
    }
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::Medium(Int_t idvol){
//
// Return medium number for volume idvol.
// If idvol is negative the volume results from a division.
    Int_t imed;
    if (idvol > 0) {
	Int_t jvo = fZlq[fGclink->jvolum-idvol];
	imed = Int_t(fZq[jvo+4]);
    } else {
	idvol=-idvol;
	Int_t jdiv = fZlq[fGclink->jvolum-idvol];
	Int_t ivin = Int_t ( fZq[jdiv+2]);
	Int_t jvin = fZlq[fGclink->jvolum-ivin];
	imed = Int_t (fZq[jvin+4]);
    }
    return imed;
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::Material(Int_t idvol){
// Return material number for volume idvol.
// If idvol is negative the volume results from a division.

    Int_t imed=Medium(idvol);
    Int_t jtm  = fZlq[fGclink->jtmed-imed];
    return Int_t (fZq[jtm+6]);
}
//----------------------------------------------------------------------
void AliITSGeant3Geometry::GetGeometry(Int_t nlevels,Int_t *lnam,Int_t *lnum,
				       Double_t *xt,Double_t *r,Int_t &idshape,
				       Int_t &npar,Int_t &natt,Float_t *par,
				       Float_t *att,Int_t &imat,Int_t &imed){
//     Returns the MtoD/DtoM transformation for a given volume in the
//     volume tree LNAM for the given copy of those volumes in LNUM.
//     Input:
//           nlevels     the size of the arrays LNAM and LNUM used
//           lnam        the array of volume names through the tree of volumes
//           lnum        the copy number for the volumes above.
//     Output:
//           xt          Double precition array(3) for the coordiante
//                       translation for the DtoM/MtoD translation.
//           r           Double precition array(10) for the 3x3 rotation
//                       matrix for the DtoM/MtoD transformation. Element
//                       10 is a flag indicating if this matrix is the unit
//                       matrix
//           idshape     Geant3.21 volume shape index number
//           npar        Geant3.21 the number of shape parameters
//           natt        Geant3.21 the number of attributes
//           par         Geant3.21 an array of shape parameters
//           att         Geant3.21 an array of attributes
//           imat        Geant3.21 matrial index number for this volume
//           imed        Geant3.21 medium index number for this volume
//
//
    Int_t  ier,idvol,nlevel,i;
    TGeant3 *geant3 = (TGeant3*) gMC;
//
    fGcvolu->nlevel = 0;
    ier    = geant3->Glvolu(nlevels,lnam,lnum);
    nlevel = fGcvolu->nlevel;
    idvol  = fGcvolu->lvolum[nlevel-1];
    imed   = Medium(idvol);
    imat   = Material(idvol);
    idshape= GetShape(idvol,npar,natt,par,att);
    for(i=0;i<3;i++) xt[i] = fGcvolu->gtran[nlevel-1][i];
    for(i=0;i<10;i++) r[i] = fGcvolu->grmat[nlevel-1][i];
}
//----------------------------------------------------------------------
Int_t AliITSGeant3Geometry::StringToInt(char *name){
// converts up to a four letter char string to an equivelant int
    Int_t i,len = strlen(name);
    UInt_t iname=0;

    for(i=0;i<4;i++){
	if(i<len) iname += ( toupper(name[i]) << (8*(i)) );
	else iname += ( toupper(' ') << (8*(i)) );
    } // end for
    return (Int_t) iname;
}
Commit	Line	Data
27f4aa1e	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	$Log:
	18
	19	*/
	20
	21	/*
	22	* Version: 0
	23	* Written by Bjorn S. Nilsen with code stolen from Andreas Morsch's
	24	* AliGeant3GeometryGUI class.
	25	*/
	26
	27	#include <ctype.h>
	28	#include "AliITSGeant3Geometry.h"
	29
	30	ClassImp(AliITSGeant3Geometry)
	31
	32	AliITSGeant3Geometry::AliITSGeant3Geometry(){
	33	// Constructor
	34
	35	// Store local copy of zebra bank entries
	36	TGeant3 geant3 = (TGeant3) gMC;
	37	if(geant3){
	38	fZlq = geant3->Lq();
	39	fZq = geant3->Q();
	40	fZiq = geant3->Iq();
	41	fGclink = geant3->Gclink();
	42	fGcnum = geant3->Gcnum();
	43	fGcvolu = geant3->Gcvolu();
	44	} // end if
	45	}
	46	//----------------------------------------------------------------------
	47	Int_t AliITSGeant3Geometry::NChildren(Int_t idvol){
	48	//
	49	// Return number of children for volume idvol
	50	Int_t jvo = fZlq[fGclink->jvolum-idvol];
	51	Int_t nin = Int_t(fZq[jvo+3]);
	52	return nin;
	53	}
	54	//----------------------------------------------------------------------
	55	Int_t AliITSGeant3Geometry::GetShape(Int_t idvol,Int_t &npar,Int_t &natt,
	56	Float_t par,Float_t att){
	57	// Returns the Geant shape number for a given volume
	58	Int_t ishape,i;
	59
	60	Int_t jvo = fZlq[fGclink->jvolum-idvol];
	61	// Int_t nin = Int_t(fZq[jvo+3]);
	62	ishape = Int_t(fZq[jvo+2]);
	63	npar = Int_t(fZq[jvo+5]);
	64	natt = Int_t(fZq[jvo+6]);
65	for(i=0;i<npar;i++) par[i] = fZq[jvo+7+i];
66	for(i=0;i<natt;i++) att[i] = fZq[jvo+7+npar+i];
67	// if(nin<0){ // devided volumes
68	// printf("Divisions nin=%d\n",nin);
69	// }else{
70	// printf("SubVolumes nin=%d\n",nin);
71	// } // end if
72	return ishape;
73	}
74	//----------------------------------------------------------------------
75	Int_t AliITSGeant3Geometry::Child(Int_t idvol, Int_t idc){
76	//
77	// Return GEANT id of child number idc of volume idvol
78	Int_t jvo = fZlq[fGclink->jvolum-idvol];
79	Int_t nin=idc;
80	Int_t jin = fZlq[jvo-nin];
81	Int_t numb = Int_t(fZq[jin +3]);
82	if (numb > 1) {
83	return -Int_t(fZq[jin+2]);
84	} else {
85	return Int_t(fZq[jin+2]);
86	}
87	}
88	//----------------------------------------------------------------------
89	Int_t AliITSGeant3Geometry::Medium(Int_t idvol){
90	//
91	// Return medium number for volume idvol.
92	// If idvol is negative the volume results from a division.
93	Int_t imed;
94	if (idvol > 0) {
95	Int_t jvo = fZlq[fGclink->jvolum-idvol];
96	imed = Int_t(fZq[jvo+4]);
97	} else {
98	idvol=-idvol;
99	Int_t jdiv = fZlq[fGclink->jvolum-idvol];
100	Int_t ivin = Int_t ( fZq[jdiv+2]);
101	Int_t jvin = fZlq[fGclink->jvolum-ivin];
102	imed = Int_t (fZq[jvin+4]);
103	}
104	return imed;
105	}
106	//----------------------------------------------------------------------
107	Int_t AliITSGeant3Geometry::Material(Int_t idvol){
108	// Return material number for volume idvol.
109	// If idvol is negative the volume results from a division.
110
111	Int_t imed=Medium(idvol);
112	Int_t jtm = fZlq[fGclink->jtmed-imed];
113	return Int_t (fZq[jtm+6]);
114	}
115	//----------------------------------------------------------------------
116	void AliITSGeant3Geometry::GetGeometry(Int_t nlevels,Int_t lnam,Int_t lnum,
117	Double_t xt,Double_t r,Int_t &idshape,
118	Int_t &npar,Int_t &natt,Float_t *par,
119	Float_t *att,Int_t &imat,Int_t &imed){
120	// Returns the MtoD/DtoM transformation for a given volume in the
121	// volume tree LNAM for the given copy of those volumes in LNUM.
122	// Input:
123	// nlevels the size of the arrays LNAM and LNUM used
124	// lnam the array of volume names through the tree of volumes
125	// lnum the copy number for the volumes above.
126	// Output:
127	// xt Double precition array(3) for the coordiante
128	// translation for the DtoM/MtoD translation.
129	// r Double precition array(10) for the 3x3 rotation
130	// matrix for the DtoM/MtoD transformation. Element
131	// 10 is a flag indicating if this matrix is the unit
132	// matrix
133	// idshape Geant3.21 volume shape index number
134	// npar Geant3.21 the number of shape parameters
135	// natt Geant3.21 the number of attributes
136	// par Geant3.21 an array of shape parameters
137	// att Geant3.21 an array of attributes
138	// imat Geant3.21 matrial index number for this volume
139	// imed Geant3.21 medium index number for this volume
140	//
141	//
142	Int_t ier,idvol,nlevel,i;
143	TGeant3 geant3 = (TGeant3) gMC;
144	//
145	fGcvolu->nlevel = 0;
146	ier = geant3->Glvolu(nlevels,lnam,lnum);
147	nlevel = fGcvolu->nlevel;
148	idvol = fGcvolu->lvolum[nlevel-1];
149	imed = Medium(idvol);
150	imat = Material(idvol);
151	idshape= GetShape(idvol,npar,natt,par,att);
152	for(i=0;i<3;i++) xt[i] = fGcvolu->gtran[nlevel-1][i];
153	for(i=0;i<10;i++) r[i] = fGcvolu->grmat[nlevel-1][i];
154	}
155	//----------------------------------------------------------------------
156	Int_t AliITSGeant3Geometry::StringToInt(char *name){
157	// converts up to a four letter char string to an equivelant int
158	Int_t i,len = strlen(name);
159	UInt_t iname=0;
160
161	for(i=0;i<4;i++){
162	if(i<len) iname += ( toupper(name[i]) << (8*(i)) );
163	else iname += ( toupper(' ') << (8*(i)) );
164	} // end for
165	return (Int_t) iname;
166	}