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//====================================================================
// CepC BeamPipe models in DD4hep
//--------------------------------------------------------------------
#include "OtherDetectorHelpers.h"
#include "DD4hep/DetFactoryHelper.h"
#include "DD4hep/DD4hepUnits.h"
#include "DD4hep/DetType.h"
#include "DDRec/DetectorData.h"
#include "DDRec/Surface.h"
#include "XML/Utilities.h"
#include <cmath>
#include <map>
#include <string>
using dd4hep::Assembly;
using dd4hep::BUILD_ENVELOPE;
using dd4hep::DetElement;
using dd4hep::Detector;
using dd4hep::PlacedVolume;
using dd4hep::Ref_t;
using dd4hep::SensitiveDetector;
using dd4hep::Volume;
using dd4hep::rec::ConicalSupportData;
using dd4hep::rec::SurfaceType;
using dd4hep::rec::Vector3D;
using dd4hep::rec::VolCylinder;
using dd4hep::rec::volSurfaceList;
//BeamPipe
static Ref_t create_detector(Detector& theDetector,
xml_h element,
SensitiveDetector /*sens*/) {
std::cout << "This is the Beampipe:" << std::endl;
//Access to the XML File
xml_det_t x_beampipe = element;
const std::string name = x_beampipe.nameStr();
DetElement tube( name, x_beampipe.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 ;
const double phi0 = 0 ;
const double dPhi = 360.0*dd4hep::degree;
//Parameters we have to know about
dd4hep::xml::Component xmlParameter = x_beampipe.child(_Unicode(parameter));
const double crossingAngle = xmlParameter.attr< double >(_Unicode(crossingangle));
std::cout << "Crossing angle = " << crossingAngle << std::endl;
std::cout << "Section: Zstart Zend RiStart RiEnd size shift type" << std::endl;
for(xml_coll_t si( x_beampipe ,Unicode("section")); si; ++si) {
xml_comp_t x_section(si);
CEPC::ECrossType type = CEPC::getCrossType(x_section.attr< std::string >(_Unicode(type)));
const double zstart = x_section.attr< double > (_Unicode(zStart));
const double zend = x_section.attr< double > (_Unicode(zEnd));
const double rInnerStart = x_section.attr< double > (_Unicode(rStart));
double rInnerEnd=0, size=0, shift=0;
try{
rInnerEnd = x_section.attr< double > (_Unicode(rEnd));
}
catch(std::runtime_error& e){
rInnerEnd = rInnerStart;
}
if(type==CEPC::kWaist || type==CEPC::kFatWaist || type==CEPC::kCrotch || type==CEPC::kCrotchAsymUp || type==CEPC::kCrotchAsymDn || type==CEPC::kRunway){
try{
size = x_section.attr< double > (_Unicode(size));
}
catch(std::runtime_error& e){
std::cout << "The maximum distance of runway is not set, will be calculated automatically by crossing angle" <<std::endl;
}
try{
shift = x_section.attr< double > (_Unicode(shift));
}
catch(std::runtime_error& e){
shift = 0;
}
}
const std::string volName = "BeamPipe_" + x_section.nameStr();
std::cout << std::setiosflags(std::ios::left)
<< std::setw(35) << volName
<< 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) << size /dd4hep::mm
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<< std::setw(8) << type
<< std::endl;
const double angle = crossingAngle;
const double zHalf = fabs(zend - zstart) * 0.5;
const double zCenter = fabs(zend + zstart) * 0.5;
dd4hep::Material beamMaterial = theDetector.material("beam");
double clipSize = 100*dd4hep::mm;
if(type==CEPC::kFlareLegUp || type==CEPC::kFlareLegDn){
double total = rInnerStart, totalEnd = rInnerEnd;
for(xml_coll_t li(x_section,_U(layer)); li; ++li) {
xml_comp_t x_layer(li);
const double thickness = x_layer.thickness();
total += thickness;
double thicknessEnd = 0;
try{
thicknessEnd = x_layer.attr< double > (_Unicode(thicknessEnd));
}
catch(std::runtime_error& e){
thicknessEnd = thickness;
}
totalEnd += thicknessEnd;
}
clipSize = std::max(total, totalEnd)*tan(0.5*angle);
}
int ilayer = 0;
double radius = rInnerStart;
double radiusEnd = rInnerEnd;
double pipeRadius = 0;
double pipeThickness = 0;
double pipeThicknessRel = 0;
double pipeRadiusEnd = 0;
double pipeThicknessEnd = 0;
double pipeThicknessRelEnd = 0;
for(xml_coll_t li(x_section,_U(layer)); li; ++li, ++ilayer) {
xml_comp_t x_layer(li);
double thickness = x_layer.thickness();
dd4hep::Material material = theDetector.material( x_layer.materialStr() );
double thicknessEnd = 0;
try{
thicknessEnd = x_layer.attr< double > (_Unicode(thicknessEnd));
}
catch(std::runtime_error& e){
thicknessEnd = thickness;
}
std::cout << "->layer: " << std::setw(6) << thickness/dd4hep::mm << std::setw(6) << thicknessEnd/dd4hep::mm << std::setw(15) << material.name() << std::endl;
char suffix[20];
sprintf(suffix,"_%d",ilayer);
std::string layerName = volName + suffix;
if(type==CEPC::kCenter || type==CEPC::kCenterSide){
dd4hep::ConeSegment subLayer(zHalf, radius, radius+thickness, radiusEnd, radiusEnd+thicknessEnd, phi0, dPhi);
dd4hep::Volume subLayerLog(volName, subLayer, material);
subLayerLog.setVisAttributes(theDetector, x_layer.visStr());
dd4hep::Transform3D transformer(dd4hep::RotationY(0), dd4hep::Position(0, 0, zCenter));
dd4hep::Transform3D transmirror(dd4hep::RotationY(180*dd4hep::degree), dd4hep::RotateY(dd4hep::Position(0, 0, zCenter), 180*dd4hep::degree));
envelope.placeVolume(subLayerLog, transformer);
envelope.placeVolume(subLayerLog, transmirror);
if(material.radLength()<10000*dd4hep::mm){
double tEff = thickness/material.radLength()*theDetector.material("G4_Be").radLength();
double tEffEnd = thicknessEnd/material.radLength()*theDetector.material("G4_Be").radLength();
if(pipeRadius==0) pipeRadius = radius;
if(pipeRadiusEnd==0) pipeRadiusEnd = radiusEnd;
pipeThickness += tEff;
pipeThicknessEnd += tEffEnd;
pipeThicknessRel += thickness;
pipeThicknessRelEnd += thicknessEnd;
// only the center pipe and the link are added to surface list for tracking
/* have been added through envelope
if(radius==radiusEnd&&thickness==thicknessEnd){
Vector3D ocyl(radius+0.5*thickness, 0., 0.);
VolCylinder surf(subLayerLog, SurfaceType(SurfaceType::Helper), 0.5*thickness, 0.5*thickness, ocyl ) ;
volSurfaceList(tube)->push_back(surf);
}
else{
Vector3D ocon(radius+0.5*thickness, 0., 0.);
Vector3D con_angle(1., 0., atan((radiusEnd+0.5*thicknessEnd-radius-0.5*thickness)/(2.*zHalf)), Vector3D::spherical);
VolCone surf(subLayerLog, SurfaceType(SurfaceType::Helper), 0.5*(thickness+thicknessEnd)/2, 0.5*(thickness+thicknessEnd)/2, con_angle, ocon);
volSurfaceList(tube)->push_back(surf);
}
*/
else if(type==CEPC::kLegs){ // doubly pipe, same for up and down
double clipAngle = 0.5*angle;
double lowNorml[3] = { sin(clipAngle), 0, -cos(clipAngle)};
double highNorml[3] = {-sin(clipAngle), 0, cos(clipAngle)};
dd4hep::CutTube subLayer(radius, radius+thickness, zHalf/cos(clipAngle), phi0, dPhi, lowNorml[0], lowNorml[1], lowNorml[2], highNorml[0], highNorml[1], highNorml[2]);
dd4hep::Volume subLayerLog(volName, subLayer, material);
subLayerLog.setVisAttributes(theDetector, x_layer.visStr());
dd4hep::Transform3D plusUpTransformer(dd4hep::RotationY(clipAngle), dd4hep::RotateY(dd4hep::Position(0,0,zCenter/cos(clipAngle)), clipAngle));
dd4hep::Transform3D plusDownTransformer(dd4hep::RotationZYX(180*dd4hep::degree, -clipAngle, 0), dd4hep::RotateY(dd4hep::Position(0,0,zCenter/cos(clipAngle)), -clipAngle));
dd4hep::Transform3D minusUpTransformer(dd4hep::RotationY(clipAngle), dd4hep::RotateY(dd4hep::Position(0,0,-zCenter/cos(clipAngle)), clipAngle));
dd4hep::Transform3D minusDownTransformer(dd4hep::RotationZYX(180*dd4hep::degree, -clipAngle, 0), dd4hep::RotateY(dd4hep::Position(0,0,-zCenter/cos(clipAngle)), -clipAngle));
envelope.placeVolume(subLayerLog, plusUpTransformer);
envelope.placeVolume(subLayerLog, plusDownTransformer);
envelope.placeVolume(subLayerLog, minusUpTransformer);
envelope.placeVolume(subLayerLog, minusDownTransformer);
}
else if(type==CEPC::kFlareLegUp || type==CEPC::kFlareLegDn){ // doubly pipe, different for up and down
double clipAngle = (type==CEPC::kFlareLegUp)?0.5*angle:-0.5*angle;
double rOuter = radius+thickness;
double rOuterEnd = radiusEnd+thicknessEnd;
dd4hep::Tube clipSolid(0, zHalf*tan(0.5*angle)+clipSize/sin(0.5*angle), zHalf, phi0, dPhi);
dd4hep::Transform3D clipTransformer(dd4hep::RotationY(-clipAngle), dd4hep::Position(0, 0, 0));
dd4hep::Transform3D placementTransformer(dd4hep::RotationY(clipAngle), dd4hep::RotateY(dd4hep::Position(0, 0, zCenter/cos(clipAngle)), clipAngle));
dd4hep::Transform3D placementTransmirror(dd4hep::RotationZYX(0, clipAngle, 180*dd4hep::degree), dd4hep::RotateY(dd4hep::Position(0, 0, -zCenter/cos(clipAngle)), -clipAngle));
dd4hep::ConeSegment wholeSolid(zHalf + clipSize, radius, rOuter, radiusEnd, rOuterEnd, phi0, dPhi);
dd4hep::IntersectionSolid layerSolid(wholeSolid, clipSolid, clipTransformer);
dd4hep::Volume subLayerLog(volName, layerSolid, material);
subLayerLog.setVisAttributes(theDetector, x_layer.visStr());
envelope.placeVolume(subLayerLog, placementTransformer);
envelope.placeVolume(subLayerLog, placementTransmirror);
}
else if(type==CEPC::kCrotch){ // runway to doubly, center has obstruct between two pipes
double beamAngle = 0.5*angle;
if(size==0) size = (zstart*tan(beamAngle)+radius)*2;
double x1 = 0.5*size - radius;
double x2 = zend*tan(beamAngle);
double y1 = radius + thickness;
double y2 = y1;
double axisAngle = atan((x2-x1)/zHalf/2);
if(fabs(beamAngle-axisAngle)>1e-12){
std::cout << "Warning! axis angle not equal to beam angle. beam=" << beamAngle << " VS axis=" << axisAngle << ", user defined design and workable" << std::endl;
}
double zSide = 2*zHalf/cos(axisAngle)+y1*tan(axisAngle)+y2*tan(axisAngle);
double xshift = 0.5*(x1+x2);
dd4hep::Trd2 body1(x1, x2, y1, y2, zHalf);
dd4hep::Trd2 cut1(x1+y1/cos(axisAngle), x2+y2/cos(axisAngle), y1, y2, zHalf);
dd4hep::EllipticalTube side1(y1*cos(axisAngle), y1, 0.5*zSide);
dd4hep::Transform3D unionTransformer1(dd4hep::RotationY(axisAngle), dd4hep::Position(xshift, 0, 0));
dd4hep::Transform3D unionTransformer2(dd4hep::RotationY(-axisAngle), dd4hep::Position(-xshift, 0, 0));
dd4hep::Transform3D sameTransformer(dd4hep::RotationY(0), dd4hep::Position(0, 0, 0));
dd4hep::UnionSolid tmp1Solid(body1, side1, unionTransformer1);
dd4hep::UnionSolid tmp2Solid(tmp1Solid, side1, unionTransformer2);
dd4hep::IntersectionSolid shell(tmp2Solid, cut1, sameTransformer);
dd4hep::Volume shellLog(volName+"Shell", shell, material);
shellLog.setVisAttributes(theDetector, x_layer.visStr());
envelope.placeVolume(shellLog, dd4hep::Position(0, 0, zCenter));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationY(180*dd4hep::degree), dd4hep::Position(0, 0, -zCenter)));
double yHole = y1-thickness;
dd4hep::Trd2 body2(x1, x2, yHole, yHole, zHalf);
dd4hep::Trd2 cut2(0, x2, yHole, yHole, zHalf);
dd4hep::SubtractionSolid tmp3Solid(body2, cut2, sameTransformer);
dd4hep::EllipticalTube side2(yHole*cos(axisAngle), yHole, zSide);
dd4hep::UnionSolid tmp4Solid(tmp3Solid, side2, unionTransformer1);
dd4hep::UnionSolid tmp5Solid(tmp4Solid, side2, unionTransformer2);
double x1shift = radius-shift;
double crotchAngle = atan(0.5*(x2-x1shift)/zHalf);
dd4hep::EllipticalTube side3(yHole*cos(crotchAngle), yHole, zSide);
dd4hep::Transform3D unionTransformer3(dd4hep::RotationY(crotchAngle), dd4hep::Position(0.5*(x2+x1shift), 0, 0));
dd4hep::Transform3D unionTransformer4(dd4hep::RotationY(-crotchAngle), dd4hep::Position(-0.5*(x2+x1shift), 0, 0));
dd4hep::UnionSolid tmp6Solid(tmp5Solid, side3, unionTransformer3);
dd4hep::UnionSolid tmp7Solid(tmp6Solid, side3, unionTransformer4);
dd4hep::IntersectionSolid vacuumPipe(tmp7Solid, cut1, sameTransformer);
dd4hep::Volume pipeLog(volName+"Vacuum", vacuumPipe, beamMaterial);
pipeLog.setVisAttributes(theDetector, x_beampipe.visStr());
shellLog.placeVolume(pipeLog, dd4hep::Position(0, 0, 0));
}
else if(type==CEPC::kCrotchAsymUp || type==CEPC::kCrotchAsymDn){ // runway to doubly, center has obstruct between two pipes, and different between up and down
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double beamAngle = 0.5*angle;
double xC2 = (shift==0)?zend*tan(beamAngle):shift;
if(radiusEnd==0) radiusEnd = radius;
if(thicknessEnd==0) thicknessEnd = thickness;
if(size==0) size = 2*radius;
double rOuter = radius+thickness;
double rOuterEnd = radiusEnd+thicknessEnd;
double xMaxEnd = xC2+rOuterEnd;
double yMax = 0.5*size+thickness;
dd4hep::Trd2 body(0, xC2, yMax, rOuterEnd, zHalf);
double expandAngle = atan(xC2/(2*zHalf));
double edge1ToZAngle = atan((xMaxEnd-rOuter)/(2*zHalf));
double edge2ToZAngle = atan((xC2-rOuterEnd+rOuter)/(2*zHalf));
double edge2ToXAngle = 90*dd4hep::degree - edge2ToZAngle;
double bottomAngle = 0.5*(180*dd4hep::degree-(edge2ToZAngle-edge1ToZAngle));
double rotateAngle = 0.5*(edge1ToZAngle+edge2ToZAngle);
double edge1ToCAngle = asin(sin(90*dd4hep::degree+edge1ToZAngle)/(xC2/sin(expandAngle))*(rOuter-rOuterEnd));
double CToEConeAxisAngle = edge1ToCAngle-0.5*(edge2ToZAngle-edge1ToZAngle);
if(fabs(rotateAngle-(expandAngle-CToEConeAxisAngle))>1e-12){
std::cout << "Warning! rotate angle was not calculated rightly. Please check input parameters whether satisfy the Waist case." << std::endl;
}
double a1 = rOuter/sin(bottomAngle)*sin(90*dd4hep::degree-edge1ToZAngle);
double a2 = rOuterEnd/sin(180*dd4hep::degree-bottomAngle)*sin(90*dd4hep::degree-edge2ToZAngle);
double zC1 = rOuter/sin(edge1ToCAngle)*sin(90*dd4hep::degree+edge1ToZAngle)*cos(CToEConeAxisAngle);
double zC2 = rOuterEnd/rOuter*zC1;
double zBottom = a1*tan(bottomAngle);
double aC1 = a1/zBottom*zC1;
double aC2 = a1/zBottom*zC2;
double xC1InECone = zC1*tan(CToEConeAxisAngle);
double xC2InECone = zC2*tan(CToEConeAxisAngle);
double bC1 = sqrt(rOuter*rOuter/(1-xC1InECone*xC1InECone/aC1/aC1));
double bC2 = sqrt(rOuterEnd*rOuterEnd/(1-xC2InECone*xC2InECone/aC2/aC2));
double b1 = bC1/zC1*zBottom;
if(fabs(bC1/zC1-bC2/zC2)>1e-12){
std::cout << "Warning! bC1/zC1 not equal to bC2/zC2. Please tell Chengdong(fucd@ihep.ac.cn)." << std::endl;
}
double pzTopCut = 0.5*(a1-a2)*tan(bottomAngle);
double thetaCut1 = atan((0.5*(xC2+rOuterEnd)-0.5*rOuter)/(2*zHalf));
double xcenterCut1 = 0.5*(0.5*(xC2+rOuterEnd)+0.5*rOuter);
dd4hep::Trap cut1(zHalf, thetaCut1, 0, yMax, 0.5*rOuter, 0.5*rOuter, 0, rOuterEnd, 0.5*(xC2+rOuterEnd), 0.5*(xC2+rOuterEnd), 0);
dd4hep::Cone cone1(pzTopCut, 0, a1, 0, a2);
dd4hep::Scale side1(cone1, 1, b1/a1, 1);
double xshift = 0.5*(xMaxEnd-a2*cos(rotateAngle)-rOuter+a1*cos(bottomAngle-edge2ToXAngle));
double zshift = 0.5*(a2-a1)*sin(rotateAngle);
dd4hep::Transform3D unionTransformer1(dd4hep::RotationY(rotateAngle), dd4hep::Position(xshift, 0, zshift));
dd4hep::Transform3D cutTransformer1(dd4hep::RotationY(0), dd4hep::Position(xcenterCut1, 0, 0));
dd4hep::UnionSolid tmp1Solid(body, side1, unionTransformer1);
dd4hep::IntersectionSolid shell(tmp1Solid, cut1, cutTransformer1);
dd4hep::Volume shellLog(volName, shell, material);
shellLog.setVisAttributes(theDetector, x_layer.visStr());
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if(type==CEPC::kCrotchAsymUp){
envelope.placeVolume(shellLog, dd4hep::Position(0, 0, zCenter));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationX(180*dd4hep::degree), dd4hep::Position(0, 0, -zCenter)));
}
else{
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationZ(180*dd4hep::degree), dd4hep::Position(0, 0, zCenter)));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationY(180*dd4hep::degree), dd4hep::Position(0, 0,-zCenter)));
}
double edge1ToZ = atan((xMaxEnd-thicknessEnd-radius)/(2*zHalf));
double edge2ToZ = atan((xC2-radiusEnd+radius)/(2*zHalf));
double edge2ToX = 90*dd4hep::degree - edge2ToZ;
double bottom = 0.5*(180*dd4hep::degree-(edge2ToZ-edge1ToZ));
double rotate = 0.5*(edge1ToZ+edge2ToZ);
double edge1ToC = asin(sin(90*dd4hep::degree+edge1ToZ)/(xC2/sin(expandAngle))*(radius-radiusEnd));
double CToEConeAxis = edge1ToC-0.5*(edge2ToZ-edge1ToZ);
if(fabs(rotate-(expandAngle-CToEConeAxis))>1e-12){
std::cout << "Warning! rotate angle was not calculated rightly. Please check input parameters whether satisfy the Waist case." << std::endl;
}
double a1Hole = radius/sin(bottom)*sin(90*dd4hep::degree-edge1ToZ);
double a2Hole = radiusEnd/sin(180*dd4hep::degree-bottom)*sin(90*dd4hep::degree-edge2ToZ);
double zC1Hole = radius/sin(edge1ToC)*sin(90*dd4hep::degree+edge1ToZ)*cos(CToEConeAxis);
double zC2Hole = radiusEnd/radius*zC1Hole;
double zBottomHole = a1Hole*tan(bottom);
double aC1Hole = a1Hole/zBottomHole*zC1Hole;
double aC2Hole = a1Hole/zBottomHole*zC2Hole;
double xC1InEConeHole = zC1Hole*tan(CToEConeAxis);
double xC2InEConeHole = zC2Hole*tan(CToEConeAxis);
double bC1Hole = sqrt(radius*radius/(1-xC1InEConeHole*xC1InEConeHole/aC1Hole/aC1Hole));
double bC2Hole = sqrt(radiusEnd*radiusEnd/(1-xC2InEConeHole*xC2InEConeHole/aC2Hole/aC2Hole));
double b1Hole = bC1Hole/zC1Hole*zBottomHole;
if(fabs(bC1Hole/zC1Hole-bC2Hole/zC2Hole)>1e-12){
std::cout << "Warning! bC1/zC1 not equal to bC2/zC2 for Hole. Please tell Chengdong(fucd@ihep.ac.cn)." << std::endl;
}
double pzTopCutHole = 0.5*(a1Hole-a2Hole)*tan(bottom);
dd4hep::Trd2 body2(0, xC2, yMax-thickness, radiusEnd, zHalf);
double thetaCut2 = atan((xC2-0.5*radius)/(2*zHalf));
double xcenterCut2 = 0.5*radius+0.5*(xC2-0.5*radius);
dd4hep::Trap cut2(zHalf, thetaCut2, 0, yMax-thickness, 0.5*radius, 0.5*radius, 0, radiusEnd, radiusEnd, radiusEnd, 0);
dd4hep::Cone cone2(pzTopCutHole, 0, a1Hole, 0, a2Hole);
dd4hep::Scale side2(cone2, 1, b1Hole/a1Hole, 1);
double xshiftHole = 0.5*(xMaxEnd-thicknessEnd-a2Hole*cos(rotate)-radius+a1Hole*cos(bottom-edge2ToX));
double zshiftHole = 0.5*(a2Hole-a1Hole)*sin(rotate);
dd4hep::Transform3D cutTransformer2(dd4hep::RotationY(rotate), dd4hep::Position(xshiftHole-xcenterCut2, 0, zshiftHole));
dd4hep::IntersectionSolid vacuumPipe(cut2, side2, cutTransformer2);
dd4hep::Volume pipeLog(volName, vacuumPipe, beamMaterial);
pipeLog.setVisAttributes(theDetector, x_beampipe.visStr());
shellLog.placeVolume(pipeLog, dd4hep::Position(xcenterCut2, 0, 0));
}
else if(type==CEPC::kWaist){ // expanded single pipe from circle to runway (each turn: 180 degree)
double beamAngle = 0.5*angle;
if(radiusEnd==0) radiusEnd = radius;
if(size==0) size = (zend*tan(beamAngle)+radiusEnd)*2;
if(thicknessEnd==0) thicknessEnd = thickness;
double xC2 = 0.5*size - radiusEnd;
double rOuter = radius+thickness;
double rOuterEnd = radiusEnd+thicknessEnd;
double rMaxEnd = 0.5*size+thicknessEnd;
dd4hep::Trd2 body1(0, xC2, rOuter, rOuterEnd, zHalf);
dd4hep::Trd2 cut(rOuter, rMaxEnd, rOuter, rOuterEnd, zHalf);
double pzTopCut = zHalf;
double expandAngle = atan(xC2/(2*zHalf));
double edge1ToZAngle = atan((rMaxEnd-rOuter)/(2*zHalf));
double edge2ToZAngle = atan((xC2-rOuterEnd+rOuter)/(2*zHalf));
double edge2ToXAngle = 90*dd4hep::degree - edge2ToZAngle;
double bottomAngle = 0.5*(180*dd4hep::degree-(edge2ToZAngle-edge1ToZAngle));
double rotateAngle = 0.5*(edge1ToZAngle+edge2ToZAngle);
double edge1ToCAngle = asin(sin(90*dd4hep::degree+edge1ToZAngle)/(xC2/sin(expandAngle))*(rOuter-rOuterEnd));
double CToEConeAxisAngle = edge1ToCAngle-0.5*(edge2ToZAngle-edge1ToZAngle);
std::cout << expandAngle/dd4hep::degree << " " << edge1ToZAngle/dd4hep::degree << " " << edge2ToZAngle/dd4hep::degree << " " << bottomAngle/dd4hep::degree << " " << rotateAngle/dd4hep::degree << " " << edge1ToCAngle/dd4hep::degree << " " << CToEConeAxisAngle/dd4hep::degree << std::endl;
if(fabs(rotateAngle-(expandAngle-CToEConeAxisAngle))>1e-12){
std::cout << "Warning! rotate angle was not calculated rightly. Please check input parameters whether satisfy the Waist case." << std::endl;
double a1 = rOuter/sin(bottomAngle)*sin(90*dd4hep::degree-edge1ToZAngle);
double a2 = rOuterEnd/sin(180*dd4hep::degree-bottomAngle)*sin(90*dd4hep::degree-edge2ToZAngle);
double b1 = rOuter;
if(rOuter!=rOuterEnd){
double zC1 = rOuter/sin(edge1ToCAngle)*sin(90*dd4hep::degree+edge1ToZAngle)*cos(CToEConeAxisAngle);
double zC2 = rOuterEnd/rOuter*zC1;
double zBottom = a1*tan(bottomAngle);
double aC1 = a1/zBottom*zC1;
double aC2 = a1/zBottom*zC2;
double xC1InECone = zC1*tan(CToEConeAxisAngle);
double xC2InECone = zC2*tan(CToEConeAxisAngle);
double bC1 = sqrt(rOuter*rOuter/(1-xC1InECone*xC1InECone/aC1/aC1));
double bC2 = sqrt(rOuterEnd*rOuterEnd/(1-xC2InECone*xC2InECone/aC2/aC2));
b1 = bC1/zC1*zBottom;
std::cout << a1 << " " << a2 << " " << zC1 << " " << zC2 << std::endl;
if(fabs(bC1/zC1-bC2/zC2)>1e-12){
std::cout << "Warning! bC1/zC1 not equal to bC2/zC2." << std::endl;
}
std::cout << "b1/a1=" << b1/a1 << std::endl;
pzTopCut = 0.5*(a1-a2)*tan(bottomAngle);
}
dd4hep::Cone cone1(pzTopCut, 0, a1, 0, a2);
dd4hep::Scale side1(cone1, 1, b1/a1, 1);
double xshift = 0.5*(rMaxEnd-a2*cos(rotateAngle)-rOuter+a1*cos(bottomAngle-edge2ToXAngle));
double zshift = 0.5*(a2-a1)*sin(rotateAngle);
dd4hep::Transform3D unionTransformer1(dd4hep::RotationY(rotateAngle), dd4hep::Position(xshift, 0, zshift));
dd4hep::Transform3D unionTransformer2(dd4hep::RotationY(-rotateAngle), dd4hep::Position(-xshift, 0, zshift));
dd4hep::Transform3D sameTransformer(dd4hep::RotationY(0), dd4hep::Position(0, 0, 0));
dd4hep::UnionSolid tmp1Solid(body1, side1, unionTransformer1);
dd4hep::UnionSolid tmp2Solid(tmp1Solid, side1, unionTransformer2);
dd4hep::IntersectionSolid shell(tmp2Solid, cut, sameTransformer);
dd4hep::Volume shellLog(volName+"Shell", shell, material);
shellLog.setVisAttributes(theDetector, x_layer.visStr());
envelope.placeVolume(shellLog, dd4hep::Position(0, 0, zCenter));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationY(180*dd4hep::degree), dd4hep::Position(0, 0, -zCenter)));
double edge1ToZ = atan((0.5*size-radius)/(2*zHalf));
double edge2ToZ = atan((xC2-radiusEnd+radius)/(2*zHalf));
double edge2ToX = 90*dd4hep::degree - edge2ToZ;
double bottom = 0.5*(180*dd4hep::degree-(edge2ToZ-edge1ToZ));
double rotate = 0.5*(edge1ToZ+edge2ToZ);
double edge1ToC = asin(sin(90*dd4hep::degree+edge1ToZ)/(xC2/sin(expandAngle))*(radius-radiusEnd));
double CToEConeAxis = edge1ToC-0.5*(edge2ToZ-edge1ToZ);
if(fabs(rotate-(expandAngle-CToEConeAxis))>1e-12){
std::cout << "Warning! rotate angle was not calculated rightly. Please check input parameters whether satisfy the Waist case." << std::endl;
}
double a1Hole = radius/sin(bottom)*sin(90*dd4hep::degree-edge1ToZ);
double a2Hole = radiusEnd/sin(180*dd4hep::degree-bottom)*sin(90*dd4hep::degree-edge2ToZ);
double b1Hole = radius;
if(radius!=radiusEnd){
double zC1Hole = radius/sin(edge1ToC)*sin(90*dd4hep::degree+edge1ToZ)*cos(CToEConeAxis);
double zC2Hole = radiusEnd/radius*zC1Hole;
double zBottomHole = a1Hole*tan(bottom);
double aC1Hole = a1Hole/zBottomHole*zC1Hole;
double aC2Hole = a1Hole/zBottomHole*zC2Hole;
double xC1InEConeHole = zC1Hole*tan(CToEConeAxis);
double xC2InEConeHole = zC2Hole*tan(CToEConeAxis);
double bC1Hole = sqrt(radius*radius/(1-xC1InEConeHole*xC1InEConeHole/aC1Hole/aC1Hole));
double bC2Hole = sqrt(radiusEnd*radiusEnd/(1-xC2InEConeHole*xC2InEConeHole/aC2Hole/aC2Hole));
b1Hole = bC1Hole/zC1Hole*zBottomHole;
if(fabs(bC1Hole/zC1Hole-bC2Hole/zC2Hole)>1e-12){
std::cout << "Warning! bC1/zC1 not equal to bC2/zC2 for Hole." << std::endl;
}
pzTopCutHole = 0.5*(a1Hole-a2Hole)*tan(bottom);
}
dd4hep::Trd2 body2(0, xC2, radius, radiusEnd, zHalf);
dd4hep::Trd2 cut2(radius, 0.5*size, radius, radiusEnd, zHalf);
dd4hep::Cone cone2(pzTopCutHole, 0, a1Hole, 0, a2Hole);
dd4hep::Scale side2(cone2, 1, b1Hole/a1Hole, 1);
double xshiftHole = 0.5*(0.5*size-a2Hole*cos(rotate)-radius+a1Hole*cos(bottom-edge2ToX));
double zshiftHole = 0.5*(a2Hole-a1Hole)*sin(rotate);
dd4hep::Transform3D unionTransformer3(dd4hep::RotationY(rotate), dd4hep::Position(xshiftHole, 0, zshiftHole));
dd4hep::Transform3D unionTransformer4(dd4hep::RotationY(-rotate), dd4hep::Position(-xshiftHole, 0, zshiftHole));
dd4hep::UnionSolid tmp3Solid(body2, side2, unionTransformer3);
dd4hep::UnionSolid tmp4Solid(tmp3Solid, side2, unionTransformer4);
dd4hep::IntersectionSolid vacuumPipe(tmp4Solid, cut, sameTransformer);
dd4hep::Volume pipeLog(volName+"Vacuum", vacuumPipe, beamMaterial);
pipeLog.setVisAttributes(theDetector, x_beampipe.visStr());
shellLog.placeVolume(pipeLog, dd4hep::Position(0, 0, 0));
}
else if(type == CEPC::kFatWaist){ // expanded single pipe from circle to cuted circle, runway but not 180 degree
double beamAngle = 0.5*angle;
if(radiusEnd==0) radiusEnd = radius;
if(size==0) size = (zend*tan(beamAngle)+radiusEnd)*2;
if(thicknessEnd==0) thicknessEnd = thickness;
double rOuter = radius+thickness;
double rOuterEnd = radiusEnd+thicknessEnd;
double yMaxEnd = 0.5*size+thicknessEnd;
dd4hep::Transform3D sameTransformer(dd4hep::RotationY(0), dd4hep::Position(0, 0, 0));
dd4hep::Trd2 body1(rOuter, rOuterEnd, rOuter, yMaxEnd, zHalf);
dd4hep::ConeSegment cone1(zHalf, 0, rOuter, 0, rOuterEnd, phi0, dPhi);
dd4hep::IntersectionSolid shell(cone1, body1, sameTransformer);
dd4hep::Volume shellLog(volName, shell, material);
shellLog.setVisAttributes(theDetector, x_layer.visStr());
envelope.placeVolume(shellLog, dd4hep::Position(0, 0, zCenter));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationY(180*dd4hep::degree), dd4hep::Position(0, 0, -zCenter)));
dd4hep::Trd2 body2(radius, radiusEnd, radius, 0.5*size, zHalf);
dd4hep::ConeSegment cone2(zHalf, 0, radius, 0, radius, phi0, dPhi);
dd4hep::IntersectionSolid vacuumPipe(cone2, body2, sameTransformer);
dd4hep::Volume pipeLog(volName, vacuumPipe, beamMaterial);
pipeLog.setVisAttributes(theDetector, x_beampipe.visStr());
shellLog.placeVolume(pipeLog, dd4hep::Position(0, 0, 0));
}
else if(type == CEPC::kRunway){ // runway to runway (180 degree), same radius
double sizeEnd = size + shift;
if(size==0){
size = (zstart*tan(0.5*angle)+radius)*2;
sizeEnd = (zend*tan(0.5*angle)+radius)*2;
}
double x1 = 0.5*size - radius;
double x2 = 0.5*sizeEnd - radius;
double y1 = radius + thickness;
double y2 = y1;
double expandAngle = atan((x2-x1)/zHalf/2);
double zSide = 2*zHalf/cos(expandAngle)+y1*tan(expandAngle)+y2*tan(expandAngle);
double xshift = 0.5*(x1+x2);
dd4hep::Trd2 body1(x1, x2, y1, y2, zHalf);
dd4hep::Trd2 cut1(x1+y1, x2+y2, y1, y2, zHalf);
dd4hep::EllipticalTube side1(y1*cos(expandAngle), y1, 0.5*zSide);
dd4hep::Transform3D unionTransformer1(dd4hep::RotationY(expandAngle), dd4hep::Position(xshift, 0, 0));
dd4hep::Transform3D unionTransformer2(dd4hep::RotationY(-expandAngle), dd4hep::Position(-xshift, 0, 0));
dd4hep::Transform3D sameTransformer(dd4hep::RotationY(0), dd4hep::Position(0, 0, 0));
dd4hep::UnionSolid tmp1Solid(body1, side1, unionTransformer1);
dd4hep::UnionSolid tmp2Solid(tmp1Solid, side1, unionTransformer2);
dd4hep::IntersectionSolid shell(tmp2Solid, cut1, sameTransformer);
dd4hep::Volume shellLog(volName+"Shell", shell, material);
shellLog.setVisAttributes(theDetector, x_layer.visStr());
envelope.placeVolume(shellLog, dd4hep::Position(0, 0, zCenter));
envelope.placeVolume(shellLog, dd4hep::Transform3D(dd4hep::RotationY(180*dd4hep::degree), dd4hep::Position(0, 0, -zCenter)));
double yHole = y1-thickness;
dd4hep::Trd2 body2(x1, x2, yHole, yHole, zHalf);
dd4hep::Trd2 cut2(x1+y1, x2+y2, yHole, yHole, zHalf);
dd4hep::EllipticalTube side2(yHole*cos(expandAngle), yHole, zSide);
dd4hep::UnionSolid tmp3Solid(body2, side2, unionTransformer1);
dd4hep::UnionSolid tmp4Solid(tmp3Solid, side2, unionTransformer2);
dd4hep::IntersectionSolid vacuumPipe(tmp4Solid, cut2, sameTransformer);
dd4hep::Volume pipeLog(volName+"Vacuum", vacuumPipe, beamMaterial);
pipeLog.setVisAttributes(theDetector, x_beampipe.visStr());
shellLog.placeVolume(pipeLog, dd4hep::Position(0, 0, 0));
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}
radius += thickness;
radiusEnd += thicknessEnd;
}
if( type == CEPC::kCenter ) { // store only the central sections !
ConicalSupportData::Section section ;
section.rInner = pipeRadius + 0.5*(pipeThicknessRel-pipeThickness) ;
section.rOuter = section.rInner + pipeThickness;
section.zPos = zstart ;
ConicalSupportData::Section sectionEnd ;
sectionEnd.rInner = pipeRadiusEnd + 0.5*(pipeThicknessRelEnd-pipeThicknessEnd) ;
sectionEnd.rOuter = sectionEnd.rInner + pipeThicknessEnd;
sectionEnd.zPos = zend ;
if(beampipeData->sections.size()!=0){
ConicalSupportData::Section last = beampipeData->sections.back();
if(last.rInner != section.rInner || last.rOuter != section.rOuter){
section.zPos = zstart + 1e-9*dd4hep::mm ;
beampipeData->sections.push_back( section );
}
}
else beampipeData->sections.push_back( section );
beampipeData->sections.push_back( sectionEnd ) ;
}
}//for all xmlSections
// add a surface just inside the beampipe for tracking:
double rInner = beampipeData->sections[0].rInner;
double rOuter = beampipeData->sections[0].rOuter;
Vector3D oCyl( 0.5*(rInner+rOuter) , 0. , 0. ) ;
VolCylinder pipeSurf( envelope , SurfaceType( SurfaceType::Helper ) ,
0.5*(rOuter-rInner) , 0.5*(rOuter-rInner), oCyl ) ;
volSurfaceList( tube )->push_back( pipeSurf ) ;
tube.addExtension< ConicalSupportData >( beampipeData ) ;
//--------------------------------------
tube.setVisAttributes( theDetector, "SeeThrough", envelope );
//debug
std::cout << "============ConicalSupportData============" << std::endl;
for(unsigned int i=0;i<beampipeData->sections.size();i++){
std::cout << std::setw(8) << beampipeData->sections[i].zPos /dd4hep::mm
<< std::setw(8) << beampipeData->sections[i].rInner /dd4hep::mm
<< std::setw(8) << beampipeData->sections[i].rOuter /dd4hep::mm
<< std::endl;
}
return tube;
}
DECLARE_DETELEMENT(CRDBeamPipe_v01, create_detector)