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#include "DD4hep/DetFactoryHelper.h"
#include "DataFormats/Math/interface/CMSUnits.h"
#include "DetectorDescription/DDCMS/interface/DDPlugins.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
using namespace std;
using namespace dd4hep;
using namespace cms;
using namespace cms_units::operators;
static long algorithm(Detector& /* description */, cms::DDParsingContext& ctxt, xml_h e) {
cms::DDNamespace ns(ctxt, e, true);
DDAlgoArguments args(ctxt, e);
Volume mother = ns.volume(args.parentName());
Volume child = ns.volume(args.childName());
double tilt = args.value<double>("Tilt"); //Tilt of the module
double startAngle = args.value<double>("StartAngle"); //offset in phi
double rangeAngle = args.value<double>("RangeAngle"); //Maximum range in phi
double radiusIn = args.value<double>("RadiusIn"); //Inner radius
double radiusOut = args.value<double>("RadiusOut"); //Outer radius
double zpos = args.value<double>("ZPosition"); //z position
int number = args.value<int>("Number"); //Number of copies
int startCopyNo = args.find("StartCopyNo") ? args.value<int>("StartCopyNo") : 1; //Start copy number
int incrCopyNo = args.find("IncrCopyNo") ? args.value<int>("IncrCopyNo") : 1; //Increment in copy number
edm::LogVerbatim("TrackerGeom") << "Parent " << mother.name() << "\tChild " << child.name() << " NameSpace "
<< ns.name();
edm::LogVerbatim("TrackerGeom") << "Parameters for positioning-- Tilt " << tilt << "\tStartAngle "
<< convertRadToDeg(startAngle) << "\tRangeAngle " << convertRadToDeg(rangeAngle)
<< "\tRin " << radiusIn << "\tRout " << radiusOut << "\t ZPos " << zpos
<< "\tCopy Numbers " << number << " Start/Increment " << startCopyNo << ", "
<< incrCopyNo;
if (number > 0) {
double theta = 90._deg;
double dphi;
if (number == 1 || fabs(rangeAngle - 360.0_deg) < 0.001_deg)
dphi = rangeAngle / number;
else
dphi = rangeAngle / (number - 1);
int copyNo = startCopyNo;
for (int i = 0; i < number; i++) {
double phi = startAngle + i * dphi;
double phix = phi - tilt + 90._deg;
double phiy = phix + 90._deg;
double phideg = convertRadToDeg(phix);
Rotation3D rotation;
if (phideg != 0) {
rotation = makeRotation3D(theta, phix, theta, phiy, 0., 0.);
}
double xpos, ypos;
if (i % 2 == 0) {
xpos = radiusIn * cos(phi);
ypos = radiusIn * sin(phi);
} else {
xpos = radiusOut * cos(phi);
ypos = radiusOut * sin(phi);
}
Position tran(xpos, ypos, zpos);
/* PlacedVolume pv = */ mother.placeVolume(child, copyNo, Transform3D(rotation, tran));
edm::LogVerbatim("TrackerGeom") << "" << child.name() << " number " << copyNo << " positioned in "
<< mother.name() << " at " << tran << " with " << rotation;
copyNo += incrCopyNo;
}
}
return 1;
}
// first argument is the type from the xml file
DECLARE_DDCMS_DETELEMENT(DDCMS_track_DDTrackerPhiAltAlgo, algorithm)
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