/** * Determine the instrument from the various input parameters. * * @return The correct instrument. */ Instrument_const_sptr CreateChunkingFromInstrument::getInstrument() { // try the input workspace MatrixWorkspace_sptr inWS = getProperty(PARAM_IN_WKSP); if (inWS) { return inWS->getInstrument(); } // temporary workspace to hang everything else off of MatrixWorkspace_sptr tempWS(new Workspace2D()); // name of the instrument string instName = getPropertyValue(PARAM_INST_NAME); // see if there is an input file string filename = getPropertyValue(PARAM_IN_FILE); if (!filename.empty()) { string top_entry_name("entry"); // TODO make more flexible // get the instrument name from the filename size_t n = filename.rfind('/'); if (n != std::string::npos) { std::string temp = filename.substr(n + 1, filename.size() - n - 1); n = temp.find('_'); if (n != std::string::npos && n > 0) { instName = temp.substr(0, n); } } // read information from the nexus file itself try { NeXus::File nxsfile(filename); // get the run start time string start_time; nxsfile.openGroup(top_entry_name, "NXentry"); nxsfile.readData("start_time", start_time); tempWS->mutableRun().addProperty( "run_start", DateAndTime(start_time).toISO8601String(), true); // get the instrument name nxsfile.openGroup("instrument", "NXinstrument"); nxsfile.readData("name", instName); nxsfile.closeGroup(); // Test if IDF exists in file, move on quickly if not nxsfile.openPath("instrument/instrument_xml"); nxsfile.close(); IAlgorithm_sptr loadInst = createChildAlgorithm("LoadIDFFromNexus", 0.0, 0.2); // Now execute the Child Algorithm. Catch and log any error, but don't // stop. try { loadInst->setPropertyValue("Filename", filename); loadInst->setProperty<MatrixWorkspace_sptr>("Workspace", tempWS); loadInst->setPropertyValue("InstrumentParentPath", top_entry_name); loadInst->execute(); } catch (std::invalid_argument &) { g_log.error("Invalid argument to LoadIDFFromNexus Child Algorithm "); } catch (std::runtime_error &) { g_log.debug("No instrument definition found in " + filename + " at " + top_entry_name + "/instrument"); } if (loadInst->isExecuted()) return tempWS->getInstrument(); else g_log.information("No IDF loaded from Nexus file."); } catch (::NeXus::Exception &) { g_log.information("No instrument definition found in " + filename + " at " + top_entry_name + "/instrument"); } } // run LoadInstrument if other methods have not run string instFilename = getPropertyValue(PARAM_INST_FILE); Algorithm_sptr childAlg = createChildAlgorithm("LoadInstrument", 0.0, 0.2); childAlg->setProperty<MatrixWorkspace_sptr>("Workspace", tempWS); childAlg->setPropertyValue("Filename", instFilename); childAlg->setPropertyValue("InstrumentName", instName); childAlg->executeAsChildAlg(); return tempWS->getInstrument(); }
/** Execute the algorithm. */ void CreateGroupingWorkspace::exec() { MatrixWorkspace_sptr inWS = getProperty("InputWorkspace"); std::string InstrumentName = getPropertyValue("InstrumentName"); std::string InstrumentFilename = getPropertyValue("InstrumentFilename"); std::string OldCalFilename = getPropertyValue("OldCalFilename"); std::string GroupNames = getPropertyValue("GroupNames"); std::string grouping = getPropertyValue("GroupDetectorsBy"); int numGroups = getProperty("FixedGroupCount"); std::string componentName = getPropertyValue("ComponentName"); // Some validation int numParams = 0; if (inWS) numParams++; if (!InstrumentName.empty()) numParams++; if (!InstrumentFilename.empty()) numParams++; if (numParams > 1) throw std::invalid_argument("You must specify exactly ONE way to get an " "instrument (workspace, instrument name, or " "IDF file). You specified more than one."); if (numParams == 0) throw std::invalid_argument("You must specify exactly ONE way to get an " "instrument (workspace, instrument name, or " "IDF file). You specified none."); if (!OldCalFilename.empty() && !GroupNames.empty()) throw std::invalid_argument("You must specify either to use the " "OldCalFilename parameter OR GroupNames but " "not both!"); bool sortnames = false; // ---------- Get the instrument one of 3 ways --------------------------- Instrument_const_sptr inst; if (inWS) { inst = inWS->getInstrument(); } else { Algorithm_sptr childAlg = createChildAlgorithm("LoadInstrument", 0.0, 0.2); MatrixWorkspace_sptr tempWS(new Workspace2D()); childAlg->setProperty<MatrixWorkspace_sptr>("Workspace", tempWS); childAlg->setPropertyValue("Filename", InstrumentFilename); childAlg->setProperty("RewriteSpectraMap", Mantid::Kernel::OptionalBool(true)); childAlg->setPropertyValue("InstrumentName", InstrumentName); childAlg->executeAsChildAlg(); inst = tempWS->getInstrument(); } if (GroupNames.empty() && OldCalFilename.empty()) { if (grouping.compare("All") == 0) { GroupNames = inst->getName(); } else if (inst->getName().compare("SNAP") == 0 && grouping.compare("Group") == 0) { GroupNames = "East,West"; } else { sortnames = true; GroupNames = ""; int maxRecurseDepth = this->getProperty("MaxRecursionDepth"); // cppcheck-suppress syntaxError PRAGMA_OMP(parallel for schedule(dynamic, 1) ) for (int num = 0; num < 300; ++num) { PARALLEL_START_INTERUPT_REGION std::ostringstream mess; mess << grouping << num; IComponent_const_sptr comp = inst->getComponentByName(mess.str(), maxRecurseDepth); PARALLEL_CRITICAL(GroupNames) if (comp) GroupNames += mess.str() + ","; PARALLEL_END_INTERUPT_REGION } PARALLEL_CHECK_INTERUPT_REGION } } // --------------------------- Create the output -------------------------- GroupingWorkspace_sptr outWS(new GroupingWorkspace(inst)); this->setProperty("OutputWorkspace", outWS); // This will get the grouping std::map<detid_t, int> detIDtoGroup; Progress prog(this, 0.2, 1.0, outWS->getNumberHistograms()); // Make the grouping one of two ways: if (!GroupNames.empty()) makeGroupingByNames(GroupNames, inst, detIDtoGroup, prog, sortnames); else if (!OldCalFilename.empty()) readGroupingFile(OldCalFilename, detIDtoGroup, prog); else if ((numGroups > 0) && !componentName.empty()) makeGroupingByNumGroups(componentName, numGroups, inst, detIDtoGroup, prog); g_log.information() << detIDtoGroup.size() << " entries in the detectorID-to-group map.\n"; setProperty("NumberGroupedSpectraResult", static_cast<int>(detIDtoGroup.size())); if (detIDtoGroup.empty()) { g_log.warning() << "Creating empty group workspace\n"; setProperty("NumberGroupsResult", static_cast<int>(0)); } else { size_t numNotFound = 0; // Make the groups, if any std::map<detid_t, int>::const_iterator it_end = detIDtoGroup.end(); std::map<detid_t, int>::const_iterator it; std::set<int> groupCount; for (it = detIDtoGroup.begin(); it != it_end; ++it) { int detID = it->first; int group = it->second; groupCount.insert(group); try { outWS->setValue(detID, double(group)); } catch (std::invalid_argument &) { numNotFound++; } } setProperty("NumberGroupsResult", static_cast<int>(groupCount.size())); if (numNotFound > 0) g_log.warning() << numNotFound << " detector IDs (out of " << detIDtoGroup.size() << ") were not found in the instrument\n."; } }