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ATLASTopBinFinder.ipp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2018 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 // DEBUG: THIS REQUIRES THE BINS TO BE SET TO phi:41 z:11
10 template <typename SpacePoint>
12  size_t phiBin, size_t zBin,
13  const Acts::SpacePointGrid<SpacePoint>* binnedSP) {
14  std::set<size_t> neighbourBins =
15  binnedSP->neighborHoodIndices({phiBin, zBin}, 1);
16  if (zBin == 6) {
17  return neighbourBins;
18  }
19  // <10 not necessary because grid doesn't return bins that don't exist (only
20  // works for 11 zbins)
21  if (zBin > 6) {
22  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin, zBin - 1}));
23  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin - 1, zBin - 1}));
24  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin + 1, zBin - 1}));
25  } else {
26  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin, zBin + 1}));
27  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin - 1, zBin + 1}));
28  neighbourBins.erase(binnedSP->getGlobalBinIndex({phiBin + 1, zBin + 1}));
29  }
30  return neighbourBins;
31 }