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//====================================================================
// lcgeo - LC detector models in DD4hep
//--------------------------------------------------------------------
// F.Gaede, DESY
// $Id$
//====================================================================
#include "DD4hep/DetFactoryHelper.h"
#include "DD4hep/DD4hepUnits.h"
#include "DD4hep/DetType.h"
#include "DDRec/Surface.h"
#include "DDRec/DetectorData.h"
#include "XML/Utilities.h"
#include "XMLHandlerDB.h"
#include <cmath>
using namespace std;
using dd4hep::Box;
using dd4hep::DetElement;
using dd4hep::Position;
using dd4hep::RotationY;
using dd4hep::RotationZYX;
using dd4hep::Transform3D;
using dd4hep::Volume;
using dd4hep::_toString;
using dd4hep::rec::volSurfaceList;
using dd4hep::rec::ZPlanarData;
/** helper struct */
struct SIT_Layer {
int n_ladders;
int n_sensors_per_ladder;
double sensor_length;
double half_z;
double sensitive_inner_radius ;
double support_inner_radius ;
double ladder_width ;
double ladder_dphi ;
};
//std::vector<SIT_Layer> _SIT_Layers;
// /** helper struct */
// struct extended_reconstruction_parameters {
// double sensor_length_mm;
// double strip_width_mm;
// double strip_length_mm;
// double strip_pitch_mm;
// double strip_angle_deg;
// };
//extended_reconstruction_parameters _e_r_p;
/** Construction of the SIT detector, ported from Mokka driver SIT_Simple_Pixel.cc
*
* Mokka History:
* Feb 7th 2011, Steve Aplin - original version
*
* @author: F.Gaede, DESY, Jan 2014
*/
static dd4hep::Ref_t create_element(dd4hep::Detector& theDetector, xml_h e, dd4hep::SensitiveDetector sens) {
//------------------------------------------
// See comments starting with '//**' for
// hints on porting issues
//------------------------------------------
xml_det_t x_det = e;
string name = x_det.nameStr();
dd4hep::DetElement sit( name, x_det.id() ) ;
// --- create an envelope volume and position it into the world ---------------------
dd4hep::Volume envelope = dd4hep::xml::createPlacedEnvelope( theDetector, e , sit ) ;
dd4hep::xml::setDetectorTypeFlag( e, sit ) ;
if( theDetector.buildType() == dd4hep::BUILD_ENVELOPE ) return sit ;
//-----------------------------------------------------------------------------------
dd4hep::PlacedVolume pv;
sens.setType("tracker");
dd4hep::rec::ZPlanarData* zPlanarData = new dd4hep::rec::ZPlanarData ;
//######################################################################################################################################################################
// code ported from SIT_Simple_Pixel::construct() :
//##################################
// extended_reconstruction_parameters _e_r_p;
// *********************
// Read and Store the Extended Reconstruction Parameters which are passed directly through to gear. Note others may be added below
// db->exec("select * from extended_reconstruction_parameters;");
// db->getTuple();
XMLHandlerDB db = XMLHandlerDB( x_det.child( _Unicode( reconstruction ) ) ) ;
zPlanarData->widthStrip = db->fetchDouble("strip_width") ;
zPlanarData->lengthStrip = db->fetchDouble("strip_length") ;
zPlanarData->pitchStrip = db->fetchDouble("strip_pitch") ;
zPlanarData->angleStrip = db->fetchDouble("strip_angle") ;
double strip_angle = zPlanarData->angleStrip ;
// *********************
//... db common_parameters
// // db->exec("select * from global;");
// // db->getTuple();
db = XMLHandlerDB( x_det.child( _Unicode( global ) ) ) ;
// Sensitive Thickness
double sensitive_thickness = db->fetchDouble("sensitive_thickness") ;
// Support Thickness
double support_thickness = db->fetchDouble("support_thickness") ;
// Sensor Length
double sensor_length = db->fetchDouble("sensor_length") ;
dd4hep::Material air = theDetector.air() ;
dd4hep::Material sensitiveMat = theDetector.material(db->fetchString("sensitive_mat"));
dd4hep::Material supportMat = theDetector.material(db->fetchString("support_mat"));
db = XMLHandlerDB( x_det.child( _Unicode( display ) ) ) ;
std::string ladderVis = db->fetchString("ladder");
std::string supportVis = db->fetchString("support");
std::string sensEnvVis = db->fetchString("sens_env");
std::string sensVis = db->fetchString("sens");
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// // // setup the encoder
// // UTIL::BitField64 encoder( LCTrackerCellID::encoding_string() ) ;
// // encoder.reset() ; // reset to 0
// // encoder[LCTrackerCellID::subdet()] = ILDDetID::NOTUSED ;
// // encoder[LCTrackerCellID::side()] = 0 ;
// // encoder[LCTrackerCellID::layer()] = 0 ;
// // encoder[LCTrackerCellID::module()] = 0 ;
// // encoder[LCTrackerCellID::sensor()] = 0 ;
// // int cellID0 = encoder.lowWord() ;
//... The SIT Sensitive detector
//unused: double sensitive_threshold_KeV = db->fetchDouble("sensitive_threshold_KeV") ;
//FIXME: the SD ...
// // _theSITSD =
// // new TRKSD02("SIT",
// // _sensitive_thickness * mm
// // * sensitive_threshold_KeV ,
// // 10.0 * MeV);
// // RegisterSensitiveDetector(_theSITSD);
for(xml_coll_t c( x_det ,_U(layer)); c; ++c) {
xml_comp_t x_layer( c );
db = XMLHandlerDB( x_layer ) ;
int layer_id = db->fetchInt("layer_id");
double half_z(0);
double sensitive_radius(0);
double sensitive_inner_radius(0);
double support_radius(0);
int n_sensors_per_ladder(0) ;
int n_ladders(0) ;
double ladder_width(0) ;
double ladder_clearance(0) ;
int faces_IP(0) ;
int is_SIT1(0) ;
int is_SIT2(0) ;
sensitive_radius = db->fetchDouble("sensitive_radius") ;
n_sensors_per_ladder = db->fetchInt("n_sensors_per_ladder") ;
half_z = (n_sensors_per_ladder *sensor_length) / 2.0 ;
n_ladders = db->fetchInt("n_ladders") ;
faces_IP = db->fetchInt("faces_IP") ;
is_SIT1 = db->fetchInt("is_SIT1") ;
is_SIT2 = db->fetchInt("is_SIT2") ;
ladder_clearance = db->fetchDouble("ladder_clearance") ;
// create assembly and DetElement for the layer
std::string layerName = dd4hep::_toString( layer_id , "layer_%d" );
dd4hep::Assembly layer_assembly( layerName ) ;
pv = envelope.placeVolume( layer_assembly ) ;
dd4hep::DetElement layerDE( sit , layerName , x_det.id() );
layerDE.setPlacement( pv ) ;
const double ladder_dphi = ( dd4hep::twopi / n_ladders ) ;
sensitive_inner_radius = sensitive_radius - 0.5 *sensitive_thickness;
ladder_width = 2*(tan(ladder_dphi*0.5)*sensitive_inner_radius - ladder_clearance) ;
// double inner_most_radius = 0.0;
if( faces_IP == 1 ){ // support is on the outside
support_radius = sensitive_radius + (0.5 *sensitive_thickness) ;
ladder_width = 2*(tan(ladder_dphi*0.5)*sensitive_inner_radius - ladder_clearance) ;
// inner_most_radius = sensitive_inner_radius;
}
else{ // support is on the inside
support_radius = sensitive_radius - (0.5 *sensitive_thickness) -support_thickness;
ladder_width = 2*(tan(ladder_dphi*0.5)*support_radius - ladder_clearance) ;
// inner_most_radius = support_radius;
}
//FIXME: GEAR....
// std::ostringstream ossradius;
// std::ostringstream osshalfz;
// ossradius << inner_most_radius / mm;
// osshalfz << half_z / mm;
// if(is_SIT1 == 1){
// (*Control::globalModelParameters)["SIT1_Radius"] = ossradius.str();
// (*Control::globalModelParameters)["SIT1_Half_Length_Z"] = osshalfz.str();
// }
// if(is_SIT2 == 1){
// (*Control::globalModelParameters)["SIT2_Radius"] = ossradius.str();
// (*Control::globalModelParameters)["SIT2_Half_Length_Z"] = osshalfz.str();
// }
dd4hep::rec::ZPlanarData::LayerLayout thisLayer ;
thisLayer.sensorsPerLadder = n_sensors_per_ladder ;
thisLayer.lengthSensor = sensor_length ;
thisLayer.distanceSupport = support_radius;
thisLayer.offsetSupport = 0. ;
thisLayer.thicknessSupport = support_thickness ;
thisLayer.zHalfSupport = half_z ;
thisLayer.widthSupport = ladder_width ;
thisLayer.distanceSensitive = sensitive_radius - 0.5 *sensitive_thickness;
thisLayer.offsetSensitive = 0. ;
thisLayer.thicknessSensitive = sensitive_thickness ;
thisLayer.zHalfSensitive = half_z ;
thisLayer.widthSensitive = ladder_width ;
thisLayer.ladderNumber = n_ladders;
thisLayer.phi0 = 0. ;
zPlanarData->layers.push_back( thisLayer ) ;
SIT_Layer layer_geom ;
layer_geom.n_ladders = n_ladders;
layer_geom.sensor_length =sensor_length;
layer_geom.n_sensors_per_ladder = n_sensors_per_ladder;
layer_geom.half_z = half_z ;
layer_geom.sensitive_inner_radius = sensitive_radius - 0.5 *sensitive_thickness;
layer_geom.support_inner_radius = support_radius;
layer_geom.ladder_width = ladder_width ;
layer_geom.ladder_dphi = ladder_dphi;
std::vector<SIT_Layer>SIT_Layers;
SIT_Layers.push_back(layer_geom) ;
std::cout << "SIT_Simple_Pixel: Layer:" << layer_id
<< "\t half length = " << layer_geom.half_z
<< "\t sensor length = " << layer_geom.sensor_length
<< "\t n sensors per ladder = " << layer_geom.n_sensors_per_ladder
<< "\t min r sensitive = " << layer_geom.sensitive_inner_radius
<< "\t min r support = " << layer_geom.support_inner_radius
<< "\t n ladders = " << layer_geom.n_ladders
<< "\t ladder width = " << layer_geom.ladder_width
<< "\t ladder clearance = " << ladder_clearance
<< "\t ladder dphi = " << ladder_dphi
<< "\t sensitive mat = " <<sensitiveMat->GetName()
<< "\t support mat = " <<supportMat->GetName()
<< "\t faces_IP = " << faces_IP
<< "\t is_SIT1 = " << is_SIT1
<< "\t is_SIT2 = " << is_SIT2
<< std::endl;
// std::stringstream name_base;
// name_base << "SIT";
// std::stringstream name_enum;
// name_enum << layer_id;
// create an enclosing ladder volume that will be placed in the world volume for every ladder
dd4hep::Box sitLadderSolid( (sensitive_thickness +support_thickness ) / 2.0 ,
layer_geom.ladder_width / 2.0,
layer_geom.half_z);
dd4hep::Volume sitLadderLogical( name + dd4hep::_toString( layer_id,"_LadderLogical_%02d"), sitLadderSolid, air ) ;
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// now create an envelope volume to represent the sensitive area, which will be divided up into individual sensors
dd4hep::Box sitSenEnvelopeSolid( (sensitive_thickness ) / 2.0 ,
layer_geom.ladder_width / 2.0,
layer_geom.half_z);
//fixme: material ??? Volume sitSenEnvelopeLogical( _toString( layer_id,"SIT_SenEnvelopeLogical_%02d"), sitSenEnvelopeSolid, sensitiveMat ) ;
dd4hep::Volume sitSenEnvelopeLogical( name + dd4hep::_toString( layer_id,"_SenEnvelopeLogical_%02d"),
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sitSenEnvelopeSolid, air ) ;
// create the sensor volumes and place them in the senstive envelope volume
dd4hep::Box sitSenSolid( (sensitive_thickness ) / 2.0 ,
layer_geom.ladder_width / 2.0,
(layer_geom.sensor_length / 2.0 ) - 1.e-06 * dd4hep::mm ); // added tolerance to avoid false overlap detection
dd4hep::Volume sitSenLogical( name + dd4hep::_toString( layer_id,"_SenLogical_%02d"), sitSenSolid,sensitiveMat ) ;
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sitSenLogical.setSensitiveDetector(sens);
//====== create the meassurement surface ===================
dd4hep::rec::Vector3D u,v,n ;
if( faces_IP == 0 ){
n.fill( -1. , 0. , 0. ) ;
// implement stereo angle
u.fill( 0. , -cos( strip_angle ) , -sin( strip_angle ) ) ;
v.fill( 0. , -sin( strip_angle ) , cos( strip_angle ) ) ;
} else {
n.fill( 1. , 0. , 0. ) ;
// implement stereo angle
u.fill( 0. , cos( strip_angle ) , sin( strip_angle ) ) ;
v.fill( 0. , -sin( strip_angle ) , cos( strip_angle ) ) ;
}
double inner_thick = sensitive_thickness / 2.0 ;
double outer_thick = sensitive_thickness / 2.0 ;
if( faces_IP ){
outer_thick += support_thickness ;
} else {
inner_thick += support_thickness ;
}
dd4hep::rec::VolPlane surf( sitSenLogical ,
dd4hep::rec::SurfaceType(dd4hep::rec::SurfaceType::Sensitive),
inner_thick, outer_thick , u,v,n ) ; //,o ) ;
// vector of sensor placements - needed for DetElements in ladder loop below
std::vector<dd4hep::PlacedVolume> pvV( layer_geom.n_sensors_per_ladder ) ;
//============================================================
for (int isensor=0; isensor < layer_geom.n_sensors_per_ladder ; ++isensor) {
// encoder.reset() ; // reset to 0
// encoder[LCTrackerCellID::subdet()] = ILDDetID::NOTUSED ;
// encoder[LCTrackerCellID::sensor()] = isensor+1;
// cellID0 = encoder.lowWord() ;
double xpos = 0.0;
double ypos = 0.0;
double zpos = -layer_geom.half_z + (0.5*layer_geom.sensor_length) + (isensor*layer_geom.sensor_length) ;
pv = sitSenEnvelopeLogical.placeVolume( sitSenLogical,
Transform3D( RotationY(0.) ,
Position( xpos, ypos, zpos) ) );
pv.addPhysVolID("sensor", isensor ) ;
//fixme: what is the correct numbering convention ?
// pv.addPhysVolID("sensor", isensor + 1 ) ;
pvV[isensor] = pv ;
}
sit.setVisAttributes(theDetector, ladderVis, sitLadderLogical ) ;
sit.setVisAttributes(theDetector, sensEnvVis, sitSenEnvelopeLogical ) ;
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sit.setVisAttributes(theDetector, sensVis, sitSenLogical ) ;
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// encoder.reset() ; // reset to 0
// encoder[LCTrackerCellID::subdet()] = ILDDetID::NOTUSED ;
// encoder[LCTrackerCellID::layer()] = layer_id ;
// cellID0 = encoder.lowWord() ;
pv = sitLadderLogical.placeVolume( sitSenEnvelopeLogical , Transform3D( RotationY( 0.),
Position( (-(sensitive_thickness +support_thickness ) / 2.0 + ( sensitive_thickness / 2.0) ), 0.,0.) ) );
// pv = sitSenEnvelopeLogical.placeVolume( sitLadderLogical, Transform3D( RotationY( 0.),
// Position( (-(sensitive_thickness +support_thickness ) / 2.0 + ( sensitive_thickness / 2.0) ), 0.,0.) ) );
//fixme: needed ?? pv.addPhysVolID("layer", layer_id ) ;
// create support volume which will be placed in the enclosing ladder volume together with the senstive envelope volume
Box sitSupSolid( (support_thickness ) / 2.0 ,
layer_geom.ladder_width / 2.0,
layer_geom.half_z);
Volume sitSupLogical( name + _toString( layer_id,"_SupLogical_%02d"), sitSupSolid, supportMat ) ;
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sit.setVisAttributes(theDetector, supportVis, sitSupLogical ) ;
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pv = sitLadderLogical.placeVolume( sitSupLogical, Transform3D( RotationY( 0.),
Position( (-(sensitive_thickness +support_thickness ) / 2.0 +sensitive_thickness + ( support_thickness / 2.0) ), 0.,0.) ) );
for( int i = 0 ; i < n_ladders ; ++i ){
std::stringstream ladder_enum; ladder_enum << "sit_ladder_" << layer_id << "_" << i;
DetElement ladderDE( layerDE , ladder_enum.str() , x_det.id() );
for (int isensor=0; isensor < layer_geom.n_sensors_per_ladder ; ++isensor) {
std::stringstream sensor_ss ; sensor_ss << ladder_enum.str() << "_" << isensor ;
DetElement sensorDE( ladderDE, sensor_ss.str() , x_det.id() );
sensorDE.setPlacement( pvV[isensor] ) ;
volSurfaceList( sensorDE )->push_back( surf ) ;
}
// RotationMatrix *rot = new RotationMatrix();
// rot->rotateZ( i * -ladder_dphi );
// // rotate by 180 degrees around z if facing away from the IP
// if( faces_IP == 0 ) rot->rotateZ( 180 * deg );
// encoder[LCTrackerCellID::subdet()] = ILDDetID::SIT ;
// encoder[LCTrackerCellID::layer()] = layer_id ;
// encoder[LCTrackerCellID::module()] = i + 1 ;
// cellID0 = encoder.lowWord() ;
float dr = ( (sensitive_thickness +support_thickness ) / 2.0 ) - (sensitive_thickness / 2.0 ) ;
// double phi_rot = i * -ladder_dphi ;
double phi_rot = i * ladder_dphi ;
if( faces_IP == 0 ) {
dr = -dr;
phi_rot += M_PI ;
}
pv = layer_assembly.placeVolume( sitLadderLogical, Transform3D( RotationZYX( phi_rot, 0. , 0. ),
Position( (sensitive_radius+dr) * cos(i * ladder_dphi),
(sensitive_radius+dr) * sin(i * ladder_dphi),
0. ) ) ) ;
pv.addPhysVolID("layer", layer_id ).addPhysVolID("module", i ) ;
//fixme: what is the correct numbering convention ?
//pv.addPhysVolID("layer", layer_id ).addPhysVolID("module", i+1 ) ;
ladderDE.setPlacement( pv ) ;
}
}
cout << "SIT_Simple_Pixel done.\n" << endl;
//######################################################################################################################################################################
sit.addExtension< ZPlanarData >( zPlanarData ) ;
//--------------------------------------
sit.setVisAttributes( theDetector, x_det.visStr(), envelope );
if ( x_det.hasAttr(_U(combineHits)) ) {
sit.setCombineHits(x_det.attr<bool>(_U(combineHits)),sens);
}
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return sit;
}
DECLARE_DETELEMENT(SIT_Simple_Pixel,create_element)