[u/mrichter/AliRoot.git] / FMD / AliFMD3.cxx

/**************************************************************************
 * Copyright(c) 2004, 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.                  *
 **************************************************************************/

/* $Id$ */

//____________________________________________________________________
//                                                                          
// Concrete implementation of AliFMDSubDetector 
//
// This implements the geometry for FMD3
//
#include "TVirtualMC.h"		// ROOT_TVirtualMC
#include "TCONS.h"		// ROOT_TCONS
#include "TNode.h"		// ROOT_TNode
#include "TList.h"		// ROOT_TList
#include "AliFMD3.h"		// ALIFMD3_H 
#include "AliLog.h"		// ALILOG_H
#include "AliFMDRing.h"		// ALIFMDRING_H 
#include <Riostream.h>		// ROOT_Riostream

//____________________________________________________________________
ClassImp(AliFMD3);

//____________________________________________________________________
AliFMD3::AliFMD3() 
  : AliFMDSubDetector(3), 
    fVolumeId(0),
    fDz(0)
{
  // Default constructor for the FMD3 sub-detector 
}


//____________________________________________________________________
AliFMD3::~AliFMD3() 
{
  // Destructor - does nothing 
}


//____________________________________________________________________
void 
AliFMD3::SetupGeometry(Int_t airId, Int_t kaptionId) 
{
  // Setup the FMD3 sub-detector geometry 
  // 
  // Parameters:
  // 
  //     airId         Id # of the Air medium 
  //     kaptionId     Id # of the Aluminium medium 
  // 
  fInnerHoneyLowR  = fInner->GetLowR() + 1;
  fInnerHoneyHighR = fInner->GetHighR() + 1;
  fOuterHoneyLowR  = fOuter->GetLowR() + 1;
  fOuterHoneyHighR = fOuter->GetHighR() + 1;

  CalculateDz();
  Double_t par[3];
  par[0] = fInner->GetLowR();
  par[1] = fOuterHoneyHighR;
  par[2] = fDz;
  fVolumeId = gMC->Gsvolu("FMD3", "TUBE", airId, par, 3);

  gMC->Matrix(fRotationId, 90, 0, 90, 90, 0, 0); 
  //0, 180, 90, 90, 180, 0);

  AliFMDSubDetector::SetupGeometry(airId, kaptionId);
}

//____________________________________________________________________
void 
AliFMD3::Geometry(const char* mother, Int_t pbRotId, 
		  Int_t idRotId, Double_t z) 
{
  // Position the FMD3 sub-detector volume 
  // 
  // Parameters 
  //
  //     mother     name of the mother volume 
  //     pbRotId    Printboard roation matrix ID 
  //     idRotId    Identity rotation matrix ID 
  //     z          Z position (not really used here, but passed down)
  //
  z = fInnerZ - fDz;
  gMC->Gspos("FMD3", 1, mother, 0, 0, z, fRotationId);
  
  AliFMDSubDetector::Geometry("FMD3", pbRotId, idRotId, z);
}

  
//____________________________________________________________________
void 
AliFMD3::SimpleGeometry(TList* nodes, 
			TNode* mother, 
			Int_t colour, 
			Double_t zMother) 
{
  // We need to get the equation for the line that connects the 
  // outer circumfrences of the two rings, as  well as for the line
  // that connects the inner curcumfrences, so that we can project to
  // where the honey-comb actually ends. 
  // 
  // we have 
  //   
  //   y = a * x + b 
  //   b = y - a * x;
  // 
  // For the outer line, we have the two equations 
  // 
  //    fOuterHoneyHighR = a * x1 + b;
  //    fInnerHoneyHighR = a * x2 + b; 
  // 
  // where 
  // 
  //    x1 = (fOuterZ + fOuter->fSiThickness + fOuter->fPrintboardThickness 
  //          + fOuter->fLegLength + fModuleSpacing) 
  //       = fInner - fDz + fHoneycombThickness
  //    x2 = (fInnerZ + fInner->fSiThickness + fInner->fPrintboardThickness 
  //          + fInner->fLegLength + fModuleSpacing)
  // 
  // and 
  //
  //    a  = (fOuterHoneyHighR - fInnerHoneyHighR) / (x1 - x2)
  //    
  // 
  CalculateDz();
#if 1
  Double_t x1  = (fOuterZ - (fOuter->GetSiThickness() 
			     + fOuter->GetPrintboardThickness() 
			     + fOuter->GetLegLength() 
			     + fOuter->GetModuleSpacing()));
  Double_t x2  = (fInnerZ - (fInner->GetSiThickness() 
			     + fInner->GetPrintboardThickness() 
			     + fInner->GetLegLength() 
			     + fInner->GetModuleSpacing()));
  Double_t ao   = 0;
  Double_t ao1  = (fOuterHoneyHighR - fInnerHoneyHighR) / (x1 - x2);
  Double_t ao2  = ((fOuter->GetHighR() - fInner->GetHighR()) 
		   / (fOuterZ - fInnerZ));
  Double_t bo   = 0;
  if (ao2 > ao1) {
    // std::cout << "Wafer determinds the size" << std::endl;
    ao  = ao2;
    bo  = fInner->GetHighR() - ao * fInnerZ;
  }
  else {
    ao = ao1;
    bo = fOuterHoneyHighR - ao * x1;
  }
  
  Double_t y1o = ao * (fInnerZ - 2 * fDz) + bo;
  Double_t y2o = ao * fInnerZ + bo;
#endif
  // We probably need to make a PCON here. 
  TShape* shape = new TCONS("FMD3", "FMD3", "", fDz, 
			    fOuter->GetLowR(),  y1o, /* fOuterHoneyHighR, */
			    fInner->GetLowR(),  y2o, /* fInnerHoneyHighR, */
			    0, 360);
  mother->cd();
  zMother = fInnerZ - fDz;  
  TNode* node = new TNode("FMD3", "FMD3", shape, 0, 0, zMother, 0);
  node->SetVisibility(0);
  nodes->Add(node);
  AliFMDSubDetector::SimpleGeometry(nodes, node, colour, zMother);
}

//____________________________________________________________________
void 
AliFMD3::CalculateDz() 
{
  if (fDz > 0) return;
  fDz = (TMath::Abs(fInnerZ - fOuterZ) 
	 + fOuter->GetSiThickness() 
	 + fOuter->GetPrintboardThickness() 
	 + fOuter->GetLegLength() 
	 + fOuter->GetModuleSpacing() 
	 + fHoneycombThickness) / 2;
}

//____________________________________________________________________
//
// EOF
//
Commit	Line	Data
4347b38f	1	/**************************************************************************
	2	* Copyright(c) 2004, 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
ba224443	18	//____________________________________________________________________
4347b38f	19	//
	20	// Concrete implementation of AliFMDSubDetector
	21	//
	22	// This implements the geometry for FMD3
	23	//
e802be3e	24	#include "TVirtualMC.h" // ROOT_TVirtualMC
	25	#include "TCONS.h" // ROOT_TCONS
	26	#include "TNode.h" // ROOT_TNode
	27	#include "TList.h" // ROOT_TList
	28	#include "AliFMD3.h" // ALIFMD3_H
	29	#include "AliLog.h" // ALILOG_H
	30	#include "AliFMDRing.h" // ALIFMDRING_H
	31	#include <Riostream.h> // ROOT_Riostream
4347b38f	32
	33	//____________________________________________________________________
	34	ClassImp(AliFMD3);
	35
	36	//____________________________________________________________________
	37	AliFMD3::AliFMD3()
ba224443	38	: AliFMDSubDetector(3),
	39	fVolumeId(0),
	40	fDz(0)
	41	{
	42	// Default constructor for the FMD3 sub-detector
	43	}
	44
4347b38f	45
	46	//____________________________________________________________________
	47	AliFMD3::~AliFMD3()
ba224443	48	{
	49	// Destructor - does nothing
	50	}
	51
4347b38f	52
	53	//____________________________________________________________________
	54	void
	55	AliFMD3::SetupGeometry(Int_t airId, Int_t kaptionId)
	56	{
ba224443	57	// Setup the FMD3 sub-detector geometry
	58	//
	59	// Parameters:
	60	//
	61	// airId Id # of the Air medium
	62	// kaptionId Id # of the Aluminium medium
	63	//
4347b38f	64	fInnerHoneyLowR = fInner->GetLowR() + 1;
	65	fInnerHoneyHighR = fInner->GetHighR() + 1;
	66	fOuterHoneyLowR = fOuter->GetLowR() + 1;
	67	fOuterHoneyHighR = fOuter->GetHighR() + 1;
	68
ba224443	69	CalculateDz();
4347b38f	70	Double_t par[3];
	71	par[0] = fInner->GetLowR();
	72	par[1] = fOuterHoneyHighR;
ba224443	73	par[2] = fDz;
4347b38f	74	fVolumeId = gMC->Gsvolu("FMD3", "TUBE", airId, par, 3);
	75
	76	gMC->Matrix(fRotationId, 90, 0, 90, 90, 0, 0);
	77	//0, 180, 90, 90, 180, 0);
	78
	79	AliFMDSubDetector::SetupGeometry(airId, kaptionId);
	80	}
	81
	82	//____________________________________________________________________
	83	void
	84	AliFMD3::Geometry(const char* mother, Int_t pbRotId,
	85	Int_t idRotId, Double_t z)
	86	{
ba224443	87	// Position the FMD3 sub-detector volume
	88	//
	89	// Parameters
	90	//
	91	// mother name of the mother volume
	92	// pbRotId Printboard roation matrix ID
	93	// idRotId Identity rotation matrix ID
	94	// z Z position (not really used here, but passed down)
	95	//
4347b38f	96	z = fInnerZ - fDz;
	97	gMC->Gspos("FMD3", 1, mother, 0, 0, z, fRotationId);
	98
	99	AliFMDSubDetector::Geometry("FMD3", pbRotId, idRotId, z);
	100	}
	101
	102
ba224443	103	//____________________________________________________________________
	104	void
	105	AliFMD3::SimpleGeometry(TList* nodes,
	106	TNode* mother,
	107	Int_t colour,
	108	Double_t zMother)
	109	{
	110	// We need to get the equation for the line that connects the
	111	// outer circumfrences of the two rings, as well as for the line
	112	// that connects the inner curcumfrences, so that we can project to
	113	// where the honey-comb actually ends.
	114	//
	115	// we have
	116	//
	117	// y = a * x + b
	118	// b = y - a * x;
	119	//
	120	// For the outer line, we have the two equations
	121	//
	122	// fOuterHoneyHighR = a * x1 + b;
	123	// fInnerHoneyHighR = a * x2 + b;
	124	//
	125	// where
	126	//
	127	// x1 = (fOuterZ + fOuter->fSiThickness + fOuter->fPrintboardThickness
	128	// + fOuter->fLegLength + fModuleSpacing)
	129	// = fInner - fDz + fHoneycombThickness
	130	// x2 = (fInnerZ + fInner->fSiThickness + fInner->fPrintboardThickness
	131	// + fInner->fLegLength + fModuleSpacing)
	132	//
	133	// and
	134	//
	135	// a = (fOuterHoneyHighR - fInnerHoneyHighR) / (x1 - x2)
	136	//
	137	//
	138	CalculateDz();
	139	#if 1
	140	Double_t x1 = (fOuterZ - (fOuter->GetSiThickness()
	141	+ fOuter->GetPrintboardThickness()
	142	+ fOuter->GetLegLength()
	143	+ fOuter->GetModuleSpacing()));
	144	Double_t x2 = (fInnerZ - (fInner->GetSiThickness()
	145	+ fInner->GetPrintboardThickness()
	146	+ fInner->GetLegLength()
	147	+ fInner->GetModuleSpacing()));
	148	Double_t ao = 0;
	149	Double_t ao1 = (fOuterHoneyHighR - fInnerHoneyHighR) / (x1 - x2);
	150	Double_t ao2 = ((fOuter->GetHighR() - fInner->GetHighR())
	151	/ (fOuterZ - fInnerZ));
	152	Double_t bo = 0;
	153	if (ao2 > ao1) {
e802be3e	154	// std::cout << "Wafer determinds the size" << std::endl;
ba224443	155	ao = ao2;
	156	bo = fInner->GetHighR() - ao * fInnerZ;
	157	}
	158	else {
	159	ao = ao1;
	160	bo = fOuterHoneyHighR - ao * x1;
	161	}
	162
	163	Double_t y1o = ao * (fInnerZ - 2 * fDz) + bo;
	164	Double_t y2o = ao * fInnerZ + bo;
	165	#endif
	166	// We probably need to make a PCON here.
	167	TShape* shape = new TCONS("FMD3", "FMD3", "", fDz,
	168	fOuter->GetLowR(), y1o, /* fOuterHoneyHighR, */
	169	fInner->GetLowR(), y2o, /* fInnerHoneyHighR, */
	170	0, 360);
	171	mother->cd();
	172	zMother = fInnerZ - fDz;
	173	TNode* node = new TNode("FMD3", "FMD3", shape, 0, 0, zMother, 0);
	174	node->SetVisibility(0);
	175	nodes->Add(node);
	176	AliFMDSubDetector::SimpleGeometry(nodes, node, colour, zMother);
	177	}
	178
	179	//____________________________________________________________________
	180	void
	181	AliFMD3::CalculateDz()
	182	{
	183	if (fDz > 0) return;
	184	fDz = (TMath::Abs(fInnerZ - fOuterZ)
	185	+ fOuter->GetSiThickness()
	186	+ fOuter->GetPrintboardThickness()
	187	+ fOuter->GetLegLength()
	188	+ fOuter->GetModuleSpacing()
	189	+ fHoneycombThickness) / 2;
	190	}
4347b38f	191
	192	//____________________________________________________________________
	193	//
	194	// EOF
	195	//