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Resolve "Implement ci_GEM"

Merged Marshall Scott requested to merge 20-implement-ci_gem into master
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src/ci_GEM.cpp 0 → 100644
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#include <XML/Helper.h>
///////////////////////////
// Central Ion GEM
///////////////////////////
using namespace dd4hep;
static Ref_t createDetector(Detector& desc, xml_h handle, SensitiveDetector sens)
{
xml::DetElement detElem = handle;
std::string detName = detElem.nameStr();
int detID = detElem.id();
xml::Component dims = detElem.dimensions();
double SizeZ = dims.sizez(); // Size in Z direction
double ROut = dims.rmax(); // Outer radius
double RIn = dims.rmin(); // Inner radius
double ShiftZ = dims.delta();
double PosX = dims.posx();
double PosZ = dims.posz();
int Nlayers = dims.nlayers();
Material mat = desc.material(detElem.materialStr());
Tube envelope(RIn, ROut, SizeZ, 0, 360 * deg);
//Volume envelopeVol(detName + "_envelope", envelope, det.;
Tube ci_GEM_GVol_Solid(RIn, ROut, SizeZ / 2., 0., 360 * deg);
Volume detVol("ci_GEM_GVol_Logic", ci_GEM_GVol_Solid, mat);
for (cml_coll_t c(detElem, _U(layer)); c; c++)
{
xml_comp_t x_layer = c;
string layer_name = detName + _toString(c.id(), "_layer%d");
Volume layer_vol(layer_name, Tube(c.rmin(), c.rmax(), c.z() ), mat );
Position layer_pos(0, 0, fnz);
pv = envelopeVol.placeVolume(layer_vol, layer_pos);
pv.addPhysVolID("layer", c.id() );
}
detVol.setVisAttributes(desc.visAttributes(detElem.visStr()));
DetElement det(detName, detID);
Volume motherVol = desc.pickMotherVolume(det);
Transform3D tr(RotationZYX(0., 0., 0.), Position(0., 0., ShiftZ));
PlacedVolume detPV = motherVol.placeVolume(envelopeVol, tr);
det.setPlacement(detPV);
return det;
}
// clang-format off
DECLARE_DETELEMENT(ci_GEM, createDetector)
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