Gabriele Cosmo
129 lines
5.3 KiB
C++
129 lines
5.3 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// John Allison 5th September 2018, based on G4PhysicalVolumeSearchScene
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// An artificial scene to find physical volumes. Instead of returning the
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// first occurrence (G4PhysicalVolumeSearchScene) this class (note the extra
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// 's' in the name of this class) returns a vector of all occurrences.
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#include "G4PhysicalVolumesSearchScene.hh"
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#include <regex>
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G4PhysicalVolumesSearchScene::G4PhysicalVolumesSearchScene
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(G4PhysicalVolumeModel* pSearchVolumesModel, // usually a world
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const G4String& requiredPhysicalVolumeName,
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G4int requiredCopyNo,
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G4int requiredContinuation)
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: fpSearchVolumesModel (pSearchVolumesModel)
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, fMatcher (requiredPhysicalVolumeName)
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, fRequiredCopyNo (requiredCopyNo)
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, fRequiredContinuation (requiredContinuation)
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{}
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void G4PhysicalVolumesSearchScene::ProcessVolume (const G4VSolid&)
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{
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G4VPhysicalVolume* pCurrentPV = fpSearchVolumesModel->GetCurrentPV();
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const G4String& name = pCurrentPV->GetName();
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G4int copyNo = fpSearchVolumesModel->GetCurrentPVCopyNo();
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// Match the name with the required physical volume name. The latter can be of
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// the form "/regexp/", where regexp is a regular expression (see C++ regex),
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// or a plain name, in which case there must be an exact match.
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if (fMatcher.Match(name)) {
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if ((fRequiredCopyNo < 0 || // I.e., ignore negative request
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fRequiredCopyNo == copyNo)) {
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auto basePath = fpSearchVolumesModel->GetFullPVPath();
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basePath.pop_back(); // Base node is one up from found node
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// Mark base path nodes as not drawn
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for (auto& node: basePath) node.SetDrawn(false);
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fFindings.push_back
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(Findings
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(fpSearchVolumesModel->GetTopPhysicalVolume(),
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pCurrentPV,
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copyNo,
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fpSearchVolumesModel->GetCurrentDepth(),
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basePath,
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*fpCurrentObjectTransformation));
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// If user has asked for limited descent
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if (fRequiredContinuation >= 0) {
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static G4int firstFoundDepth = fpSearchVolumesModel->GetCurrentDepth();
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G4int foundDepth = fpSearchVolumesModel->GetCurrentDepth();
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if (foundDepth >= firstFoundDepth + fRequiredContinuation) {
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fpSearchVolumesModel->CurtailDescent();
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}
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}
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}
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}
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}
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G4PhysicalVolumesSearchScene::Matcher::Matcher(const G4String& requiredMatch)
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: fRegexFlag(false)
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{
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if (requiredMatch.size()) {
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size_t last = requiredMatch.size() - 1;
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// If required name begins and ends with '/', treat as a regular expression.
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// 0 causes a conversion ambiguity that upsets the Windows compiler, so use 0U.
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if (requiredMatch[0U] == '/' && requiredMatch[last] == '/') {
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if (last > 1) { // Non-null regexp
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// regex match required
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fRegexFlag = true;
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// Extract the required regex
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fRequiredMatch = requiredMatch.substr(1,last-1);
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}
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} else {
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// Exact match required
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fRequiredMatch = requiredMatch;
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}
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}
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if (fRequiredMatch.isNull()) {
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G4Exception
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("G4PhysicalVolumesSearchScene::Matcher::Matcher",
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"modeling0013", JustWarning, "Required match is null");
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}
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}
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G4bool G4PhysicalVolumesSearchScene::Matcher::Match(const G4String& s)
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// Match the string with the required match. The latter can be of the form
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// "/regexp/", where regexp is a regular expression (see C++ regex),
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// or a plain string, in which case there must be an exact match.
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{
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G4bool found = false;
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if (fRequiredMatch.size()) {
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if (fRegexFlag) { // Use extracted regex
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std::regex requiredRegex(fRequiredMatch);
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std::cmatch match;
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std::regex_search(s.c_str(), match, requiredRegex);
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if (match.size() > 0) found = true;
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} else { // Require complete match
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if (s == fRequiredMatch) found = true;
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}
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}
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return found;
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}
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