本文整理汇总了C++中nexus::File::hasAttr方法的典型用法代码示例。如果您正苦于以下问题：C++ File::hasAttr方法的具体用法？C++ File::hasAttr怎么用？C++ File::hasAttr使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类nexus::File的用法示例。
在下文中一共展示了File::hasAttr方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: readHistogramData
/**
* Read histogram data
* @param histogramEntries map of the file entries that have histogram
* @param outputGroup pointer to the workspace group
* @param nxFile Reads data from inside first first top entry
*/
void LoadMcStas::readHistogramData(
const std::map<std::string, std::string> &histogramEntries,
WorkspaceGroup_sptr &outputGroup, ::NeXus::File &nxFile) {
std::string nameAttrValueYLABEL;
for (const auto &histogramEntry : histogramEntries) {
const std::string &dataName = histogramEntry.first;
const std::string &dataType = histogramEntry.second;
// open second level entry
nxFile.openGroup(dataName, dataType);
// grap title to use to e.g. create workspace name
std::string nameAttrValueTITLE;
nxFile.getAttr("filename", nameAttrValueTITLE);
if (nxFile.hasAttr("ylabel")) {
nxFile.getAttr("ylabel", nameAttrValueYLABEL);
}
// Find the axis names
auto nxdataEntries = nxFile.getEntries();
std::string axis1Name, axis2Name;
for (auto &nxdataEntry : nxdataEntries) {
if (nxdataEntry.second == "NXparameters")
continue;
if (nxdataEntry.first == "ncount")
continue;
nxFile.openData(nxdataEntry.first);
if (nxFile.hasAttr("axis")) {
int axisNo(0);
nxFile.getAttr("axis", axisNo);
if (axisNo == 1)
axis1Name = nxdataEntry.first;
else if (axisNo == 2)
axis2Name = nxdataEntry.first;
else
throw std::invalid_argument("Unknown axis number");
}
nxFile.closeData();
}
std::vector<double> axis1Values, axis2Values;
nxFile.readData<double>(axis1Name, axis1Values);
if (axis2Name.length() == 0) {
axis2Name = nameAttrValueYLABEL;
axis2Values.push_back(0.0);
} else {
nxFile.readData<double>(axis2Name, axis2Values);
}
const size_t axis1Length = axis1Values.size();
const size_t axis2Length = axis2Values.size();
g_log.debug() << "Axis lengths=" << axis1Length << " " << axis2Length
<< '\n';
// Require "data" field
std::vector<double> data;
nxFile.readData<double>("data", data);
// Optional errors field
std::vector<double> errors;
try {
nxFile.readData<double>("errors", errors);
} catch (::NeXus::Exception &) {
g_log.information() << "Field " << dataName
<< " contains no error information.\n";
}
// close second level entry
nxFile.closeGroup();
MatrixWorkspace_sptr ws = WorkspaceFactory::Instance().create(
"Workspace2D", axis2Length, axis1Length, axis1Length);
Axis *axis1 = ws->getAxis(0);
axis1->title() = axis1Name;
// Set caption
auto lblUnit = boost::make_shared<Units::Label>();
lblUnit->setLabel(axis1Name, "");
axis1->unit() = lblUnit;
Axis *axis2 = new NumericAxis(axis2Length);
axis2->title() = axis2Name;
// Set caption
lblUnit = boost::make_shared<Units::Label>();
lblUnit->setLabel(axis2Name, "");
axis2->unit() = lblUnit;
ws->setYUnit(axis2Name);
ws->replaceAxis(1, axis2);
for (size_t wsIndex = 0; wsIndex < axis2Length; ++wsIndex) {
//.........这里部分代码省略.........