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MTD geometry: add test for pixel acceptance in module #42739

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merged 2 commits into from
Sep 11, 2023
Merged

MTD geometry: add test for pixel acceptance in module #42739

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2a538c1
Add test for pixel acceptance in module
fabiocos Sep 7, 2023
a390194
scram b code-format
fabiocos Sep 8, 2023
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38 changes: 38 additions & 0 deletions Geometry/MTDGeometryBuilder/test/MTDDigiGeometryAnalyzer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@

#include <fstream>

#include "CLHEP/Random/RandFlat.h"

// class declaration

class MTDDigiGeometryAnalyzer : public edm::one::EDAnalyzer<> {
Expand All @@ -41,6 +43,7 @@ class MTDDigiGeometryAnalyzer : public edm::one::EDAnalyzer<> {
void analyseRectangle(const GeomDetUnit& det);
void checkRotation(const GeomDetUnit& det);
void checkRectangularMTDTopology(const RectangularMTDTopology&);
void checkPixelsAcceptance(const GeomDetUnit& det);

std::stringstream sunitt;

Expand Down Expand Up @@ -116,6 +119,13 @@ void MTDDigiGeometryAnalyzer::analyze(const edm::Event& iEvent, const edm::Event
}
}

edm::LogInfo("MTDDigiGeometryAnalyzer") << "Acceptance of BTL module:";
auto const& btldet = *(dynamic_cast<const MTDGeomDetUnit*>(pDD->detsBTL().front()));
checkPixelsAcceptance(btldet);
edm::LogInfo("MTDDigiGeometryAnalyzer") << "Acceptance of ETL module:";
auto const& etldet = *(dynamic_cast<const MTDGeomDetUnit*>(pDD->detsETL().front()));
checkPixelsAcceptance(etldet);

edm::LogInfo("MTDDigiGeometryAnalyzer") << "Additional MTD geometry content:"
<< "\n"
<< " # dets = " << pDD->dets().size() << "\n"
Expand Down Expand Up @@ -209,5 +219,33 @@ void MTDDigiGeometryAnalyzer::checkRotation(const GeomDetUnit& det) {
}
}

void MTDDigiGeometryAnalyzer::checkPixelsAcceptance(const GeomDetUnit& det) {
const Bounds& bounds = det.surface().bounds();
const RectangularPlaneBounds* tb = dynamic_cast<const RectangularPlaneBounds*>(&bounds);
if (tb == nullptr)
return; // not trapezoidal

double length = tb->length();
double width = tb->width();
edm::LogVerbatim("MTDDigiGeometryAnalyzer") << "X (width) = " << width << " Y (length) = " << length;

const ProxyMTDTopology& topoproxy = static_cast<const ProxyMTDTopology&>(det.topology());
const RectangularMTDTopology& topo = static_cast<const RectangularMTDTopology&>(topoproxy.specificTopology());

const size_t maxindex = 100000;
size_t inpixel(0);
for (size_t index = 0; index < maxindex; index++) {
double ax = CLHEP::RandFlat::shoot(-width * 0.5, width * 0.5);
double ay = CLHEP::RandFlat::shoot(-length * 0.5, length * 0.5);
LocalPoint hit(ax, ay, 0);
if (topo.isInPixel(hit)) {
inpixel++;
}
}
double acc = (double)inpixel / (double)maxindex;
double accerr = std::sqrt(acc * (1. - acc) / (double)maxindex);
edm::LogVerbatim("MTDDigiGeometryAnalyzer") << "Acceptance: " << acc << " +/- " << accerr;
}

//define this as a plug-in
DEFINE_FWK_MODULE(MTDDigiGeometryAnalyzer);