/** Construction of VTX detector, ported from Mokka driver TubeX01.cc
*
* Mokka History:
* - first implementation as Tube00: Paulo Mora de Freitas, Sep 2002
* - modified from Tube00 to Tube01DT: Ties Behnke, 2003-02-11
* - modified for a crossing angle as TubeX00: Adrian Vogel, 2005-05-18
* - modified for fancier geometries as TubeX01: Adrian Vogel, 2006-04-20
*
* @author: F.Gaede, DESY, Jan 2014
*
*/
static Ref_t create_element(Detector& theDetector,
xml_h element,
SensitiveDetector /*sens*/) {
//------------------------------------------
// See comments starting with '//**' for
// hints on porting issues
//------------------------------------------
std::cout << "This is the Beampipe:" << std::endl;
//Access to the XML File
xml_det_t xmlBeampipe = element;
const std::string name = xmlBeampipe.nameStr();
DetElement tube( name, xmlBeampipe.id() ) ;
// --- create an envelope volume and position it into the world ---------------------
Volume envelope = dd4hep::xml::createPlacedEnvelope( theDetector, element , tube ) ;
dd4hep::xml::setDetectorTypeFlag( element, tube ) ;
if( theDetector.buildType() == BUILD_ENVELOPE ) return tube ;
//-----------------------------------------------------------------------------------
ConicalSupportData* beampipeData = new ConicalSupportData ;
//######################################################################################################################################################################
// code ported from TubeX01::construct() :
//##################################
//** DD4hep/TGeo seems to need rad (as opposed to the manual)
const double phi1 = 0 ;
const double phi2 = 360.0*dd4hep::degree;
//Parameters we have to know about
dd4hep::xml::Component xmlParameter = xmlBeampipe.child(_Unicode(parameter));
const double crossingAngle = xmlParameter.attr< double >(_Unicode(crossingangle))*0.5; // only half the angle
double min_radius = 1.e99 ;
for(xml_coll_t c( xmlBeampipe ,Unicode("section")); c; ++c) {
xml_comp_t xmlSection( c );
ODH::ECrossType crossType = ODH::getCrossType(xmlSection.attr< std::string >(_Unicode(type)));
const double zStart = xmlSection.attr< double > (_Unicode(start));
const double zEnd = xmlSection.attr< double > (_Unicode(end));
const double rInnerStart = xmlSection.attr< double > (_Unicode(rMin1));
const double rInnerEnd = xmlSection.attr< double > (_Unicode(rMin2));
const double rOuterStart = xmlSection.attr< double > (_Unicode(rMax1));
const double rOuterEnd = xmlSection.attr< double > (_Unicode(rMax2));
const double thickness = rOuterStart - rInnerStart;
Material sectionMat = theDetector.material(xmlSection.materialStr());
const std::string volName = "tube_" + xmlSection.nameStr();
std::cout << std::setw(8) << zStart /dd4hep::mm
<< std::setw(8) << zEnd /dd4hep::mm
<< std::setw(8) << rInnerStart /dd4hep::mm
<< std::setw(8) << rInnerEnd /dd4hep::mm
<< std::setw(8) << rOuterStart /dd4hep::mm
<< std::setw(8) << rOuterEnd /dd4hep::mm
<< std::setw(8) << thickness /dd4hep::mm
<< std::setw(8) << crossType
<< std::setw(35) << volName
<< std::setw(15) << sectionMat.name() << std::endl;
if( crossType == ODH::kCenter ) { // store only the central sections !
ConicalSupportData::Section section ;
section.rInner = rInnerStart ;
section.rOuter = rOuterStart ;
section.zPos = zStart ;
beampipeData->sections.push_back( section ) ;
}
// things which can be calculated immediately
const double zHalf = fabs(zEnd - zStart) * 0.5; // half z length of the cone
const double zPosition = fabs(zEnd + zStart) * 0.5; // middle z position
Material coreMaterial = theDetector.material("beam"); // always the same
Material wallMaterial = sectionMat;
// this could mess up your geometry, so better check it
if (not checkForSensibleGeometry(crossingAngle, crossType)){
throw std::runtime_error( " Beampipe_o1_v01_geo.cpp : checkForSensibleGeometry() failed " ) ;
// return false;
}
const double rotateAngle = getCurrentAngle(crossingAngle, crossType); // for the placement at +z (better make it const now)
const double mirrorAngle = M_PI - rotateAngle; // for the "mirrored" placement at -z
// the "mirroring" in fact is done by a rotation of (almost) 180 degrees around the y-axis
switch (crossType) {
case ODH::kCenter:
case ODH::kUpstream:
case ODH::kDnstream: {
// a volume on the z-axis, on the upstream branch, or on the downstream branch
// absolute transformations for the placement in the world
Transform3D transformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition), rotateAngle) );
Transform3D transmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition), mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment tubeSolid( zHalf, 0, rOuterStart, 0, rOuterEnd , phi1, phi2);
// tube consists of vacuum
// place tube twice explicitely so we can attach surfaces to each one
Volume tubeLog( volName, tubeSolid, coreMaterial ) ;
Volume tubeLog2( volName, tubeSolid, coreMaterial ) ;
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog, transformer );
envelope.placeVolume( tubeLog2, transmirror );
// if inner and outer radii are equal, then omit the tube wall
if (rInnerStart != rOuterStart || rInnerEnd != rOuterEnd) {
// the wall solid: a tubular cone
ConeSegment wallSolid( zHalf, rInnerStart, rOuterStart, rInnerEnd, rOuterEnd, phi1, phi2);
// the wall consists of the material given in the XML
Volume wallLog ( volName + "_wall", wallSolid, wallMaterial);
Volume wallLog2( volName + "_wall2", wallSolid, wallMaterial);
if( crossType == ODH::kCenter ) {
// add surface for tracking ....
const bool isCylinder = ( rInnerStart == rInnerEnd );
if (isCylinder) { // cylinder
Vector3D ocyl( rInnerStart + thickness/2. , 0. , 0. ) ;
VolCylinder cylSurf1( wallLog , SurfaceType( SurfaceType::Helper ) , 0.5*thickness , 0.5*thickness , ocyl );
VolCylinder cylSurf2( wallLog2, SurfaceType( SurfaceType::Helper ) , 0.5*thickness , 0.5*thickness , ocyl );
volSurfaceList( tube )->push_back( cylSurf1 );
volSurfaceList( tube )->push_back( cylSurf2 );
}else{ // cone
const double dr = rInnerEnd - rInnerStart ;
const double theta = atan2( dr , 2.* zHalf ) ;
Vector3D ocon( rInnerStart + 0.5 * ( dr + thickness ), 0. , 0. );
Vector3D v( 1. , 0. , theta, Vector3D::spherical ) ;
VolCone conSurf1( wallLog , SurfaceType( SurfaceType::Helper ) , 0.5*thickness , 0.5*thickness , v, ocon );
VolCone conSurf2( wallLog2, SurfaceType( SurfaceType::Helper ) , 0.5*thickness , 0.5*thickness , v, ocon );
volSurfaceList( tube )->push_back( conSurf1 );
volSurfaceList( tube )->push_back( conSurf2 );
}
if( rInnerStart < min_radius ) min_radius = rInnerStart ;
if( rOuterStart < min_radius ) min_radius = rOuterStart ;
}
wallLog.setVisAttributes(theDetector, "TubeVis");
wallLog2.setVisAttributes(theDetector, "TubeVis");
tubeLog.setVisAttributes(theDetector, "VacVis");
tubeLog2.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volume of the tube, will appear in both placements of the tube
tubeLog.placeVolume( wallLog, Transform3D() );
tubeLog2.placeVolume( wallLog2, Transform3D() );
}
}
break;
case ODH::kPunchedCenter: {
// a volume on the z-axis with one or two inner holes
// (implemented as a cone from which tubes are punched out)
const double rUpstreamPunch = rInnerStart; // just alias names denoting what is meant here
const double rDnstreamPunch = rInnerEnd; // (the database entries are "abused" in this case)
// relative transformations for the composition of the SubtractionVolumes
Transform3D upstreamTransformer(RotationY(-crossingAngle), Position(zPosition * tan(-crossingAngle), 0, 0));
Transform3D dnstreamTransformer(RotationY(+crossingAngle), Position(zPosition * tan(+crossingAngle), 0, 0));
// absolute transformations for the final placement in the world (angles always equal zero and 180 deg)
Transform3D placementTransformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition) , rotateAngle) );
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition) , mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment tubeSolid( zHalf, 0, rOuterStart, 0, rOuterEnd, phi1, phi2);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0( volName + "_0", tubeSolid, coreMaterial );
Volume tubeLog1( volName + "_1", tubeSolid, coreMaterial );
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog0, placementTransformer );
envelope.placeVolume( tubeLog1, placementTransmirror );
// the wall solid and placeholders for possible SubtractionSolids
ConeSegment wholeSolid( zHalf, 0, rOuterStart, 0, rOuterEnd, phi1, phi2);
Solid tmpSolid0, tmpSolid1, wallSolid0, wallSolid1;
// the punched subtraction solids can be asymmetric and therefore have to be created twice:
// one time in the "right" way, another time in the "reverse" way, because the "mirroring"
// rotation around the y-axis will not only exchange +z and -z, but also +x and -x
if ( rUpstreamPunch > 1e-6 ) { // do we need a hole on the upstream branch?
Tube upstreamPunch( 0, rUpstreamPunch, 5 * zHalf, phi1, phi2); // a bit longer
tmpSolid0 = SubtractionSolid( wholeSolid, upstreamPunch, upstreamTransformer);
tmpSolid1 = SubtractionSolid( wholeSolid, upstreamPunch, dnstreamTransformer); // [sic]
} else { // dont't do anything, just pass on the unmodified shape
tmpSolid0 = wholeSolid;
tmpSolid1 = wholeSolid;
}
if (rDnstreamPunch > 1e-6 ) { // do we need a hole on the downstream branch?
Tube dnstreamPunch( 0, rDnstreamPunch, 5 * zHalf, phi1, phi2); // a bit longer
wallSolid0 = SubtractionSolid( tmpSolid0, dnstreamPunch, dnstreamTransformer);
wallSolid1 = SubtractionSolid( tmpSolid1, dnstreamPunch, upstreamTransformer); // [sic]
} else { // dont't do anything, just pass on the unmodified shape
wallSolid0 = tmpSolid0;
wallSolid1 = tmpSolid1;
}
// the wall consists of the material given in the XML
Volume wallLog0( volName + "_wall_0", wallSolid0, wallMaterial );
Volume wallLog1( volName + "_wall_1", wallSolid1, wallMaterial );
wallLog0.setVisAttributes(theDetector, "TubeVis");
wallLog1.setVisAttributes(theDetector, "TubeVis");
tubeLog0.setVisAttributes(theDetector, "VacVis");
tubeLog1.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volumes of the tube
tubeLog0.placeVolume( wallLog0, Position() );
tubeLog1.placeVolume( wallLog1, Position() );
break;
}
case ODH::kPunchedUpstream:
case ODH::kPunchedDnstream: {
// a volume on the upstream or downstream branch with two inner holes
// (implemented as a cone from which another tube is punched out)
const double rCenterPunch = (crossType == ODH::kPunchedUpstream) ? (rInnerStart) : (rInnerEnd); // just alias names denoting what is meant here
const double rOffsetPunch = (crossType == ODH::kPunchedDnstream) ? (rInnerStart) : (rInnerEnd); // (the database entries are "abused" in this case)
// relative transformations for the composition of the SubtractionVolumes
Transform3D punchTransformer(RotationY(-2 * rotateAngle), Position(zPosition * tan(-2 * rotateAngle), 0, 0));
Transform3D punchTransmirror(RotationY(+2 * rotateAngle), Position(zPosition * tan(+2 * rotateAngle), 0, 0));
// absolute transformations for the final placement in the world
Transform3D placementTransformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition) , rotateAngle) );
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition) , mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment tubeSolid( zHalf, 0, rOuterStart, 0, rOuterEnd, phi1, phi2);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0( volName + "_0", tubeSolid, coreMaterial );
Volume tubeLog1( volName + "_1", tubeSolid, coreMaterial );
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog0, placementTransformer );
envelope.placeVolume( tubeLog1, placementTransmirror );
// the wall solid and the piece (only a tube, for the moment) which will be punched out
ConeSegment wholeSolid( zHalf, rCenterPunch , rOuterStart, rCenterPunch, rOuterEnd, phi1, phi2);
Tube punchSolid( 0, rOffsetPunch, 5 * zHalf, phi1, phi2); // a bit longer
// the punched subtraction solids can be asymmetric and therefore have to be created twice:
// one time in the "right" way, another time in the "reverse" way, because the "mirroring"
// rotation around the y-axis will not only exchange +z and -z, but also +x and -x
SubtractionSolid wallSolid0( wholeSolid, punchSolid, punchTransformer);
SubtractionSolid wallSolid1( wholeSolid, punchSolid, punchTransmirror);
// the wall consists of the material given in the database
Volume wallLog0( volName + "_wall_0", wallSolid0, wallMaterial );
Volume wallLog1( volName + "_wall_1", wallSolid1, wallMaterial );
wallLog0.setVisAttributes(theDetector, "TubeVis");
wallLog1.setVisAttributes(theDetector, "TubeVis");
tubeLog0.setVisAttributes(theDetector, "VacVis");
tubeLog1.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volumes of the tube
tubeLog0.placeVolume( wallLog0 , Position() );
tubeLog1.placeVolume( wallLog1 , Position() );
break;
}
case ODH::kUpstreamClippedFront:
case ODH::kDnstreamClippedFront:
case ODH::kUpstreamSlicedFront:
case ODH::kDnstreamSlicedFront: {
// a volume on the upstream or donwstream branch, but with the front face parallel to the xy-plane
// or to a piece tilted in the other direction ("sliced" like a salami with 2 * rotateAngle)
// (implemented as a slightly longer cone from which the end is clipped off)
// the volume which will be used for clipping: a solid tube
const double clipSize = rOuterStart; // the right order of magnitude for the clipping volume (alias name)
Tube clipSolid( 0, 2 * clipSize, clipSize, phi1, phi2); // should be large enough
// relative transformations for the composition of the SubtractionVolumes
const double clipAngle = (crossType == ODH::kUpstreamClippedFront || crossType == ODH::kDnstreamClippedFront) ? (rotateAngle) : (2 * rotateAngle);
const double clipShift = (zStart - clipSize) / cos(clipAngle) - (zPosition - clipSize / 2); // question: why is this correct?
Transform3D clipTransformer(RotationY(-clipAngle), Position(0, 0, clipShift));
Transform3D clipTransmirror(RotationY(+clipAngle), Position(0, 0, clipShift));
// absolute transformations for the final placement in the world
Transform3D placementTransformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition - clipSize / 2) , rotateAngle) );
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition - clipSize / 2) , mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment wholeSolid( zHalf + clipSize / 2, 0, rOuterStart, 0, rOuterEnd, phi1, phi2); // a bit longer
// clip away the protruding end
SubtractionSolid tubeSolid0( wholeSolid, clipSolid, clipTransformer);
SubtractionSolid tubeSolid1( wholeSolid, clipSolid, clipTransmirror);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0( volName + "_0", tubeSolid0, coreMaterial );
Volume tubeLog1( volName + "_1", tubeSolid1, coreMaterial );
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog0, placementTransformer );
envelope.placeVolume( tubeLog1, placementTransmirror );
if (rInnerStart != rOuterStart || rInnerEnd != rOuterEnd) {
// the wall solid: a tubular cone
ConeSegment wallWholeSolid( zHalf + clipSize / 2, rInnerStart, rOuterStart, rInnerEnd, rOuterEnd, phi1, phi2); // a bit longer
// clip away the protruding end
SubtractionSolid wallSolid0( wallWholeSolid, clipSolid, clipTransformer);
SubtractionSolid wallSolid1( wallWholeSolid, clipSolid, clipTransmirror);
// the wall consists of the material given in the database
Volume wallLog0( volName + "_wall_0", wallSolid0, wallMaterial );
Volume wallLog1( volName + "_wall_1", wallSolid1, wallMaterial );
wallLog0.setVisAttributes(theDetector, "TubeVis");
wallLog1.setVisAttributes(theDetector, "TubeVis");
tubeLog0.setVisAttributes(theDetector, "VacVis");
tubeLog1.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volumes of the tube
tubeLog0.placeVolume( wallLog0, Position() );
tubeLog1.placeVolume( wallLog1, Position() );
}
}
break;
case ODH::kUpstreamClippedRear:
case ODH::kDnstreamClippedRear:
case ODH::kUpstreamSlicedRear:
case ODH::kDnstreamSlicedRear: {
// a volume on the upstream or donwstream branch, but with the rear face parallel to the xy-plane
// or to a piece tilted in the other direction ("sliced" like a salami with 2 * rotateAngle)
// (implemented as a slightly longer cone from which the end is clipped off)
// the volume which will be used for clipping: a solid tube
const double clipSize = rOuterEnd; // the right order of magnitude for the clipping volume (alias name)
Tube clipSolid( 0, 2 * clipSize, clipSize, phi1, phi2); // should be large enough
// relative transformations for the composition of the SubtractionVolumes
const double clipAngle = (crossType == ODH::kUpstreamClippedRear || crossType == ODH::kDnstreamClippedRear) ? (rotateAngle) : (2 * rotateAngle);
const double clipShift = (zEnd + clipSize) / cos(clipAngle) - (zPosition + clipSize / 2); // question: why is this correct?
Transform3D clipTransformer(RotationY(-clipAngle), Position(0, 0, clipShift));
Transform3D clipTransmirror(RotationY(+clipAngle), Position(0, 0, clipShift));
// absolute transformations for the final placement in the world
Transform3D placementTransformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition + clipSize / 2) , rotateAngle) );
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition + clipSize / 2) , mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment wholeSolid( 0, rOuterStart, 0, rOuterEnd, zHalf + clipSize / 2, phi1, phi2); // a bit longer
// clip away the protruding end
SubtractionSolid tubeSolid0( wholeSolid, clipSolid, clipTransformer);
SubtractionSolid tubeSolid1( wholeSolid, clipSolid, clipTransmirror);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0( volName + "_0", tubeSolid0, coreMaterial );
Volume tubeLog1( volName + "_1", tubeSolid1, coreMaterial );
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog0, placementTransformer );
envelope.placeVolume( tubeLog1, placementTransmirror );
if (rInnerStart != rOuterStart || rInnerEnd != rOuterEnd) {
// the wall solid: a tubular cone
ConeSegment wallWholeSolid( rInnerStart, rOuterStart, rInnerEnd, rOuterEnd, zHalf + clipSize / 2, phi1, phi2); // a bit longer
// clip away the protruding end
SubtractionSolid wallSolid0( wallWholeSolid, clipSolid, clipTransformer);
SubtractionSolid wallSolid1( wallWholeSolid, clipSolid, clipTransmirror);
// the wall consists of the material given in the database
Volume wallLog0( volName + "_wall_0", wallSolid0, wallMaterial );
Volume wallLog1( volName + "_wall_1", wallSolid1, wallMaterial );
wallLog0.setVisAttributes(theDetector, "TubeVis");
wallLog1.setVisAttributes(theDetector, "TubeVis");
tubeLog0.setVisAttributes(theDetector, "VacVis");
tubeLog1.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volumes of the tube
tubeLog0.placeVolume( wallLog0, Transform3D() );
tubeLog1.placeVolume( wallLog1, Transform3D() );
}
break;
}
case ODH::kUpstreamClippedBoth:
case ODH::kDnstreamClippedBoth:
case ODH::kUpstreamSlicedBoth:
case ODH::kDnstreamSlicedBoth: {
// a volume on the upstream or donwstream branch, but with both faces parallel to the xy-plane
// or to a piece tilted in the other direction ("sliced" like a salami with 2 * rotateAngle)
// (implemented as a slightly longer cone from which the end is clipped off)
// the volume which will be used for clipping: a solid tube
const double clipSize = rOuterEnd; // the right order of magnitude for the clipping volume (alias name)
Tube clipSolid( 0, 2 * clipSize, clipSize, phi1, phi2); // should be large enough
// relative transformations for the composition of the SubtractionVolumes
const double clipAngle = (crossType == ODH::kUpstreamClippedBoth || crossType == ODH::kDnstreamClippedBoth) ? (rotateAngle) : (2 * rotateAngle);
const double clipShiftFrnt = (zStart - clipSize) / cos(clipAngle) - zPosition;
const double clipShiftRear = (zEnd + clipSize) / cos(clipAngle) - zPosition;
Transform3D clipTransformerFrnt(RotationY(-clipAngle), Position(0, 0, clipShiftFrnt));
Transform3D clipTransformerRear(RotationY(-clipAngle), Position(0, 0, clipShiftRear));
Transform3D clipTransmirrorFrnt(RotationY(+clipAngle), Position(0, 0, clipShiftFrnt));
Transform3D clipTransmirrorRear(RotationY(+clipAngle), Position(0, 0, clipShiftRear));
// absolute transformations for the final placement in the world
Transform3D placementTransformer(RotationY(rotateAngle), RotateY( Position(0, 0, zPosition) , rotateAngle) );
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY( Position(0, 0, zPosition) , mirrorAngle) );
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment wholeSolid( 0, rOuterStart, 0, rOuterEnd, zHalf + clipSize, phi1, phi2); // a bit longer
// clip away the protruding ends
SubtractionSolid tmpSolid0 ( wholeSolid, clipSolid, clipTransformerFrnt);
SubtractionSolid tmpSolid1 ( wholeSolid, clipSolid, clipTransmirrorFrnt);
SubtractionSolid tubeSolid0( tmpSolid0, clipSolid, clipTransformerRear);
SubtractionSolid tubeSolid1( tmpSolid1, clipSolid, clipTransmirrorRear);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0( volName + "_0", tubeSolid0, coreMaterial );
Volume tubeLog1( volName + "_1", tubeSolid1, coreMaterial );
// placement of the tube in the world, both at +z and -z
envelope.placeVolume( tubeLog0, placementTransformer );
envelope.placeVolume( tubeLog1, placementTransmirror );
if (rInnerStart != rOuterStart || rInnerEnd != rOuterEnd) {
// the wall solid: a tubular cone
ConeSegment wallWholeSolid( rInnerStart, rOuterStart, rInnerEnd, rOuterEnd, zHalf + clipSize, phi1, phi2); // a bit longer
// clip away the protruding ends
SubtractionSolid wallTmpSolid0( wallWholeSolid, clipSolid, clipTransformerFrnt);
SubtractionSolid wallTmpSolid1( wallWholeSolid, clipSolid, clipTransmirrorFrnt);
SubtractionSolid wallSolid0 ( wallTmpSolid0, clipSolid, clipTransformerRear);
SubtractionSolid wallSolid1 ( wallTmpSolid1, clipSolid, clipTransmirrorRear);
// the wall consists of the material given in the database
Volume wallLog0(volName + "_wall_0", wallSolid0, wallMaterial );
Volume wallLog1(volName + "_wall_1", wallSolid1, wallMaterial );
wallLog0.setVisAttributes(theDetector, "TubeVis");
wallLog1.setVisAttributes(theDetector, "TubeVis");
tubeLog0.setVisAttributes(theDetector, "VacVis");
tubeLog1.setVisAttributes(theDetector, "VacVis");
// placement as a daughter volumes of the tube
tubeLog0.placeVolume( wallLog0, Transform3D() );
tubeLog1.placeVolume( wallLog1, Transform3D() );
}
break;
}
default: {
throw std::runtime_error( " Beampipe_o1_v01_geo.cpp : fatal failure !! ?? " ) ;
// return false; // fatal failure
}
}//end switch
}//for all xmlSections
//######################################################################################################################################################################
// add a surface just inside the beampipe for tracking:
Vector3D oIPCyl( (min_radius-1.e-3) , 0. , 0. ) ;
SimpleCylinder ipCylSurf( envelope , SurfaceType( SurfaceType::Helper ) , 1.e-5 , 1e-5 , oIPCyl ) ;
// the length does not really matter here as long as it is long enough for all tracks ...
ipCylSurf->setHalfLength( 100*dd4hep::cm ) ;
volSurfaceList( tube )->push_back( ipCylSurf ) ;
tube.addExtension< ConicalSupportData >( beampipeData ) ;
//--------------------------------------
tube.setVisAttributes( theDetector, xmlBeampipe.visStr(), envelope );
// // tube.setPlacement(pv);
return tube;
}
static Ref_t create_detector(Detector& theDetector, xml_h e, SensitiveDetector sens) {
xml_det_t x_det = e;
int det_id = x_det.id();
string det_name = x_det.nameStr();
DetElement sdet (det_name,det_id);
// --- create an envelope volume and position it into the world ---------------------
Volume envelope = dd4hep::xml::createPlacedEnvelope( theDetector, e , sdet ) ;
dd4hep::xml::setDetectorTypeFlag( e, sdet ) ;
if( theDetector.buildType() == BUILD_ENVELOPE ) return sdet ;
//-----------------------------------------------------------------------------------
xml_dim_t dim = x_det.dimensions();
Material air = theDetector.air();
int nsides_inner = dim.nsides_inner();
int nsides_outer = dim.nsides_outer();
double rmin = dim.rmin();
double rmax = dim.rmax(); /// FIXME: IS THIS RIGHT?
double zmin = dim.zmin();
double rcutout = dim.hasAttr(_U(rmin2)) ? dim.rmin2() : 0.;
double zcutout = dim.hasAttr(_U(z2)) ? dim.z2() : 0.;
Layering layering(x_det);
double totalThickness = layering.totalThickness();
Readout readout = sens.readout();
Segmentation seg = readout.segmentation();
std::vector<double> cellSizeVector = seg.segmentation()->cellDimensions(0); //Assume uniform cell sizes, provide dummy cellID
double cell_sizeX = cellSizeVector[0];
double cell_sizeY = cellSizeVector[1];
PolyhedraRegular polyVolume(nsides_outer,rmin,rmax,totalThickness);
Volume endcapVol("endcap",polyVolume,air);
if(zcutout >0. || rcutout > 0.){
PolyhedraRegular cutoutPolyVolume(nsides_inner,0,rmin+rcutout,zcutout);
Position cutoutPos(0,0,(zcutout-totalThickness)/2.0);
std::cout<<"Cutout z width will be "<<zcutout<<std::endl;
endcapVol=Volume("endcap",SubtractionSolid(polyVolume,cutoutPolyVolume,cutoutPos),air);
}
DetElement endcapA(sdet,"endcap",det_id);
Ref_t(endcapA)->SetName((det_name+"_A").c_str());
int layer_num = 0;
int layerType = 0;
double layerZ = -totalThickness/2;
//Create caloData object to extend driver with data required for reconstruction
LayeredCalorimeterData* caloData = new LayeredCalorimeterData ;
caloData->layoutType = LayeredCalorimeterData::EndcapLayout ;
caloData->inner_symmetry = nsides_inner;
caloData->outer_symmetry = nsides_outer;
/** NOTE: phi0=0 means lower face flat parallel to experimental floor
* This is achieved by rotating the modules with respect to the envelope
* which is assumed to be a Polyhedron and has its axes rotated with respect
* to the world by 180/nsides. In any other case (e.g. if you want to have
* a tip of the calorimeter touching the ground) this value needs to be computed
*/
caloData->inner_phi0 = 0.;
caloData->outer_phi0 = 0.;
caloData->gap0 = 0.; //FIXME
caloData->gap1 = 0.; //FIXME
caloData->gap2 = 0.; //FIXME
/// extent of the calorimeter in the r-z-plane [ rmin, rmax, zmin, zmax ] in mm.
caloData->extent[0] = rmin ;
caloData->extent[1] = rmax ; ///FIXME: CHECK WHAT IS NEEDED (EXSCRIBED?)
caloData->extent[2] = zmin ;
caloData->extent[3] = zmin + totalThickness;
endcapVol.setAttributes(theDetector,x_det.regionStr(),x_det.limitsStr(),x_det.visStr());
for(xml_coll_t c(x_det,_U(layer)); c; ++c) {
xml_comp_t x_layer = c;
double layer_thick = layering.layer(layer_num)->thickness();
string layer_type_name = _toString(layerType,"layerType%d");
int layer_repeat = x_layer.repeat();
double layer_rcutout = x_layer.hasAttr(_U(gap)) ? x_layer.gap() : 0;
std::cout<<"Number of layers in group "<<layerType<<" : "<<layer_repeat<<std::endl;
Volume layer_vol(layer_type_name,PolyhedraRegular(nsides_outer,rmin+layer_rcutout,rmax,layer_thick),air);
int slice_num = 0;
double sliceZ = -layer_thick/2;
//Create a caloLayer struct for thiss layer type to store copies of in the parent struct
LayeredCalorimeterData::Layer caloLayer ;
caloLayer.cellSize0 = cell_sizeX;
caloLayer.cellSize1 = cell_sizeY;
double nRadiationLengths=0.;
double nInteractionLengths=0.;
double thickness_sum=0;
for(xml_coll_t s(x_layer,_U(slice)); s; ++s) {
xml_comp_t x_slice = s;
string slice_name = _toString(slice_num,"slice%d");
double slice_thickness = x_slice.thickness();
Material slice_material = theDetector.material(x_slice.materialStr());
Volume slice_vol(slice_name,PolyhedraRegular(nsides_outer,rmin+layer_rcutout,rmax,slice_thickness),slice_material);
slice_vol.setVisAttributes(theDetector.visAttributes(x_slice.visStr()));
sliceZ += slice_thickness/2;
layer_vol.placeVolume(slice_vol,Position(0,0,sliceZ));
nRadiationLengths += slice_thickness/(2.*slice_material.radLength());
nInteractionLengths += slice_thickness/(2.*slice_material.intLength());
thickness_sum += slice_thickness/2;
if ( x_slice.isSensitive() ) {
sens.setType("calorimeter");
slice_vol.setSensitiveDetector(sens);
#if DD4HEP_VERSION_GE( 0, 15 )
//Store "inner" quantities
caloLayer.inner_nRadiationLengths = nRadiationLengths;
caloLayer.inner_nInteractionLengths = nInteractionLengths;
caloLayer.inner_thickness = thickness_sum;
//Store scintillator thickness
caloLayer.sensitive_thickness = slice_thickness;
#endif
//Reset counters to measure "outside" quantitites
nRadiationLengths=0.;
nInteractionLengths=0.;
thickness_sum = 0.;
}
nRadiationLengths += slice_thickness/(2.*slice_material.radLength());
nInteractionLengths += slice_thickness/(2.*slice_material.intLength());
thickness_sum += slice_thickness/2;
sliceZ += slice_thickness/2;
slice_num++;
}
#if DD4HEP_VERSION_GE( 0, 15 )
//Store "outer" quantities
caloLayer.outer_nRadiationLengths = nRadiationLengths;
caloLayer.outer_nInteractionLengths = nInteractionLengths;
caloLayer.outer_thickness = thickness_sum;
#endif
layer_vol.setVisAttributes(theDetector.visAttributes(x_layer.visStr()));
if ( layer_repeat <= 0 ) throw std::runtime_error(x_det.nameStr()+"> Invalid repeat value");
for(int j=0; j<layer_repeat; ++j) {
string phys_lay = _toString(layer_num,"layer%d");
//The rest of the data is constant; only the distance needs to be updated
//Store the position up to the inner face of the layer
caloLayer.distance = zmin + totalThickness/2 + layerZ;
//Push back a copy to the caloData structure
caloData->layers.push_back( caloLayer );
layerZ += layer_thick/2;
DetElement layer_elt(endcapA, phys_lay, layer_num);
PlacedVolume pv = endcapVol.placeVolume(layer_vol,Position(0,0,layerZ));
pv.addPhysVolID("layer", layer_num);
layer_elt.setPlacement(pv);
layerZ += layer_thick/2;
++layer_num;
}
++layerType;
}
double z_pos = zmin+totalThickness/2;
PlacedVolume pv;
// Reflect it.
DetElement endcapB = endcapA.clone(det_name+"_B",x_det.id());
//Removed rotations to align with envelope
//NOTE: If the envelope is not a polyhedron (eg. if you use a tube)
//you may need to rotate so the axes match
pv = envelope.placeVolume(endcapVol,Transform3D(RotationZYX(0,0,0),
Position(0,0,z_pos)));
pv.addPhysVolID("side", 1);
endcapA.setPlacement(pv);
//Removed rotations
pv = envelope.placeVolume(endcapVol,Transform3D(RotationZYX(0,M_PI,0),
Position(0,0,-z_pos)));
pv.addPhysVolID("side", 2);
endcapB.setPlacement(pv);
sdet.add(endcapB);
sdet.addExtension< LayeredCalorimeterData >( caloData ) ;
return sdet;
}
static Ref_t create_element(Detector& theDetector, xml_h xmlHandle, SensitiveDetector /*sens*/) {
//------------------------------------------
// See comments starting with '//**' for
// hints on porting issues
//------------------------------------------
std::cout << "This is the Mask:" << std::endl;
// Access to the XML File
xml_det_t xmlMask = xmlHandle;
const std::string name = xmlMask.nameStr();
//--------------------------------
Assembly envelope(name + "_assembly");
//--------------------------------
DetElement tube(name, xmlMask.id());
// const double phi1 = 0 ;
// const double phi2 = 360.0*dd4hep::degree;
// Parameters we have to know about
dd4hep::xml::Component xmlParameter = xmlMask.child(_Unicode(parameter));
const double crossingAngle = xmlParameter.attr<double>(_Unicode(crossingangle)) * 0.5; // only half the angle
for (xml_coll_t c(xmlMask, Unicode("section")); c; ++c) {
xml_comp_t xmlSection(c);
ODH::ECrossType crossType = ODH::getCrossType(xmlSection.attr<std::string>(_Unicode(type)));
const double zStart = xmlSection.attr<double>(_Unicode(start));
const double zEnd = xmlSection.attr<double>(_Unicode(end));
const double rInnerStart = xmlSection.attr<double>(_Unicode(rMin1));
const double rInnerEnd = xmlSection.attr<double>(_Unicode(rMin2));
const double rOuterStart = xmlSection.attr<double>(_Unicode(rMax1));
const double rOuterEnd = xmlSection.attr<double>(_Unicode(rMax2));
const double phi1 = xmlSection.attr<double>(_Unicode(Phi1));
const double phi2 = xmlSection.attr<double>(_Unicode(Phi2));
const double thickness = rOuterStart - rInnerStart;
Material sectionMat = theDetector.material(xmlSection.materialStr());
const std::string volName = "tube_" + xmlSection.nameStr();
std::cout << std::setw(8) << zStart << std::setw(8) << zEnd << std::setw(8) << rInnerStart << std::setw(8)
<< rInnerEnd << std::setw(8) << rOuterStart << std::setw(8) << rOuterEnd << std::setw(8) << thickness
<< std::setw(8) << crossType << std::setw(8) << phi1 << std::setw(8) << phi2 << std::setw(15) << volName
<< std::setw(15) << sectionMat.name() << std::endl;
// things which can be calculated immediately
const double zHalf = fabs(zEnd - zStart) * 0.5; // half z length of the cone
const double zPosition = fabs(zEnd + zStart) * 0.5; // middle z position
Material material = sectionMat;
// this could mess up your geometry, so better check it
if (not ODH::checkForSensibleGeometry(crossingAngle, crossType)) {
throw std::runtime_error(" Mask_o1_v01_noRot_geo.cpp : checkForSensibleGeometry() failed ");
}
const double rotateAngle =
getCurrentAngle(crossingAngle, crossType); // for the placement at +z (better make it const now)
const double mirrorAngle = M_PI - rotateAngle; // for the "mirrored" placement at -z
// the "mirroring" in fact is done by a rotation of (almost) 180 degrees around the y-axis
switch (crossType) {
case ODH::kCenter:
case ODH::kUpstream:
case ODH::kDnstream: {
// a volume on the z-axis, on the upstream branch, or on the downstream branch
// absolute transformations for the placement in the world, rotate over X
Transform3D transformer(RotationX(rotateAngle), RotateX(Position(0, 0, zPosition), rotateAngle));
Transform3D transmirror(RotationX(mirrorAngle), RotateX(Position(0, 0, zPosition), mirrorAngle));
// solid for the tube (including vacuum and wall): a solid cone
ConeSegment tubeSolid(zHalf, rInnerStart, rOuterStart, rInnerEnd, rOuterEnd, phi1, phi2);
// tube consists of vacuum
Volume tubeLog(volName, tubeSolid, material);
tubeLog.setVisAttributes(theDetector, xmlMask.visStr());
// placement of the tube in the world, both at +z and -z
envelope.placeVolume(tubeLog, transformer);
envelope.placeVolume(tubeLog, transmirror);
} break;
case ODH::kPunchedCenter: {
// a cone with one or two inner holes (two tubes are punched out)
const double rUpstreamPunch = rInnerStart; // just alias names denoting what is meant here
const double rDnstreamPunch = rInnerEnd; // (the database entries are "abused" in this case)
// relative transformations for the composition of the SubtractionVolumes
Transform3D upstreamTransformer(RotationY(-crossingAngle), Position(zPosition * tan(-crossingAngle), 0, 0));
Transform3D dnstreamTransformer(RotationY(+crossingAngle), Position(zPosition * tan(+crossingAngle), 0, 0));
// absolute transformations for the final placement in the world (angles always equal zero and 180 deg)
Transform3D placementTransformer(RotationY(rotateAngle), RotateY(Position(0, 0, zPosition), rotateAngle));
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY(Position(0, 0, zPosition), mirrorAngle));
// the main solid and the two pieces (only tubes, for the moment) which will be punched out
ConeSegment wholeSolid(zHalf, 0, rOuterStart, 0, rOuterEnd, phi1, phi2);
Solid tmpSolid0, tmpSolid1, finalSolid0, finalSolid1;
// the punched subtraction solids can be asymmetric and therefore have to be created twice:
// one time in the "right" way, another time in the "reverse" way, because the "mirroring"
// rotation around the y-axis will not only exchange +z and -z, but also +x and -x
if (rUpstreamPunch > 1e-6) { // do we need a hole on the upstream branch?
Tube upstreamPunch(0, rUpstreamPunch, 5 * zHalf, phi1, phi2); // a bit longer
tmpSolid0 = SubtractionSolid(wholeSolid, upstreamPunch, upstreamTransformer);
tmpSolid1 = SubtractionSolid(wholeSolid, upstreamPunch, dnstreamTransformer); // [sic]
} else { // dont't do anything, just pass on the unmodified shape
tmpSolid0 = wholeSolid;
tmpSolid1 = wholeSolid;
}
if (rDnstreamPunch > 1e-6) { // do we need a hole on the downstream branch?
Tube dnstreamPunch(0, rDnstreamPunch, 5 * zHalf, phi1, phi2); // a bit longer
finalSolid0 = SubtractionSolid(tmpSolid0, dnstreamPunch, dnstreamTransformer);
finalSolid1 = SubtractionSolid(tmpSolid1, dnstreamPunch, upstreamTransformer); // [sic]
} else { // dont't do anything, just pass on the unmodified shape
finalSolid0 = tmpSolid0;
finalSolid1 = tmpSolid1;
}
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0(volName + "_0", finalSolid0, material);
Volume tubeLog1(volName + "_1", finalSolid1, material);
tubeLog0.setVisAttributes(theDetector, xmlMask.visStr());
tubeLog1.setVisAttributes(theDetector, xmlMask.visStr());
// placement of the tube in the world, both at +z and -z
envelope.placeVolume(tubeLog0, placementTransformer);
envelope.placeVolume(tubeLog1, placementTransmirror);
break;
}
case ODH::kPunchedUpstream:
case ODH::kPunchedDnstream: {
// a volume on the upstream or downstream branch with two inner holes
// (implemented as a cone from which another tube is punched out)
const double rCenterPunch = (crossType == ODH::kPunchedUpstream)
? (rInnerStart)
: (rInnerEnd); // just alias names denoting what is meant here
const double rOffsetPunch = (crossType == ODH::kPunchedDnstream)
? (rInnerStart)
: (rInnerEnd); // (the database entries are "abused" in this case)
// relative transformations for the composition of the SubtractionVolumes
Transform3D punchTransformer(RotationY(-2 * rotateAngle), Position(zPosition * tan(-2 * rotateAngle), 0, 0));
Transform3D punchTransmirror(RotationY(+2 * rotateAngle), Position(zPosition * tan(+2 * rotateAngle), 0, 0));
// absolute transformations for the final placement in the world
Transform3D placementTransformer(RotationY(rotateAngle), RotateY(Position(0, 0, zPosition), rotateAngle));
Transform3D placementTransmirror(RotationY(mirrorAngle), RotateY(Position(0, 0, zPosition), mirrorAngle));
// the main solid and the piece (only a tube, for the moment) which will be punched out
ConeSegment wholeSolid(zHalf, rCenterPunch, rOuterStart, rCenterPunch, rOuterEnd, phi1, phi2);
Tube punchSolid(0, rOffsetPunch, 5 * zHalf, phi1, phi2); // a bit longer
// the punched subtraction solids can be asymmetric and therefore have to be created twice:
// one time in the "right" way, another time in the "reverse" way, because the "mirroring"
// rotation around the y-axis will not only exchange +z and -z, but also +x and -x
SubtractionSolid finalSolid0(wholeSolid, punchSolid, punchTransformer);
SubtractionSolid finalSolid1(wholeSolid, punchSolid, punchTransmirror);
// tube consists of vacuum (will later have two different daughters)
Volume tubeLog0(volName + "_0", finalSolid0, material);
Volume tubeLog1(volName + "_1", finalSolid1, material);
tubeLog0.setVisAttributes(theDetector, xmlMask.visStr());
tubeLog1.setVisAttributes(theDetector, xmlMask.visStr());
// placement of the tube in the world, both at +z and -z
envelope.placeVolume(tubeLog0, placementTransformer);
envelope.placeVolume(tubeLog1, placementTransmirror);
break;
}
default: { throw std::runtime_error(" Mask_o1_v01_geo.cpp : fatal failure !! ?? "); }
} // end switch
} // for all xmlSections
//--------------------------------------
Volume mother = theDetector.pickMotherVolume(tube);
PlacedVolume pv(mother.placeVolume(envelope));
pv.addPhysVolID("system", xmlMask.id()); //.addPhysVolID("side", 0 ) ;
tube.setVisAttributes(theDetector, xmlMask.visStr(), envelope);
tube.setPlacement(pv);
return tube;
}
