bool NetcdfSource::initFile() {
_ncfile = new NcFile(_filename.toUtf8().data(), NcFile::ReadOnly);
if (!_ncfile->is_valid()) {
qDebug() << _filename << ": failed to open in initFile()" << endl;
return false;
}
KST_DBG qDebug() << _filename << ": building field list" << endl;
_fieldList.clear();
_fieldList += "INDEX";
int nb_vars = _ncfile->num_vars();
KST_DBG qDebug() << nb_vars << " vars found in total" << endl;
_maxFrameCount = 0;
for (int i = 0; i < nb_vars; i++) {
NcVar *var = _ncfile->get_var(i);
if (var->num_dims() == 0) {
_scalarList += var->name();
} else if (var->num_dims() == 1) {
_fieldList += var->name();
int fc = var->num_vals() / var->rec_size();
_maxFrameCount = qMax(_maxFrameCount, fc);
_frameCounts[var->name()] = fc;
} else if (var->num_dims() == 2) {
_matrixList += var->name();
}
}
// Get strings
int globalAttributesNb = _ncfile->num_atts();
for (int i = 0; i < globalAttributesNb; ++i) {
// Get only first value, should be enough for a start especially as strings are complete
NcAtt *att = _ncfile->get_att(i);
if (att) {
QString attrName = QString(att->name());
char *attString = att->as_string(0);
QString attrValue = QString(att->as_string(0));
delete[] attString;
//TODO port
//KstString *ms = new KstString(KstObjectTag(attrName, tag()), this, attrValue);
_stringList += attrName;
}
delete att;
}
// TODO update(); // necessary? slows down initial loading
return true;
}
int NetcdfSource::readString(QString *stringValue, const QString& stringName)
{
// TODO more error handling?
NcAtt *att = _ncfile->get_att((NcToken) stringName.toLatin1().data());
if (att) {
*stringValue = QString(att->as_string(0));
return 1;
}
delete att;
return 0;
}
string GrabAttribute(const NcVar* dataVar, const int attIndex)
{
if (NULL == dataVar)
{
cerr << "ERROR: Invalid NcVar!\n";
return("");
}
NcAtt* dataAttrib = dataVar->get_att(attIndex);
if (NULL == dataAttrib)
{
cerr << "ERROR: Could not obtain data attribute: index #" << attIndex << endl;
return("");
}
const string returnVal = dataAttrib->as_string(0);
delete dataAttrib;
return(returnVal);
}
RadarData_t ReadRadarFile(const string &filename,
const float latmin, const float latmax,
const float lonmin, const float lonmax)
{
RadarData_t inputData;
// Sets the internal netcdf error handling to nonfatal for this scope
NcError error_handler(NcError::verbose_nonfatal);
NcFile radarFile(filename.c_str());
if (!radarFile.is_valid())
{
cerr << "ERROR: Could not open radar file: " << filename << " for reading.\n";
// Error is indicated by the lack of initialization of
// the filename member of the struct.
return(inputData);
}
NcVar* latVar = radarFile.get_var("lat");
if (NULL == latVar)
{
cerr << "ERROR: invalid data file. No variable called 'lat'!\n";
radarFile.close();
return(inputData);
}
long latCnt = latVar->num_vals();
double* latVals = new double[latCnt];
latVar->get(latVals, latCnt);
inputData.latUnits = GrabAttribute(latVar, 0);
inputData.latSpacing = strtod(GrabAttribute(latVar, 1).c_str(), NULL);
const long minLatIndex = lower_bound(latVals, latmin, latCnt);
const long maxLatIndex = upper_bound(latVals, latmax, latCnt);
delete latVals;
latCnt = (maxLatIndex - minLatIndex) + 1;
latVar->set_cur(minLatIndex);
inputData.latVals = new double[latCnt];
latVar->get(inputData.latVals, latCnt);
NcVar* lonVar = radarFile.get_var("lon");
if (NULL == lonVar)
{
cerr << "ERROR: invalid data file. No variable called 'lon'!\n";
radarFile.close();
return(inputData);
}
long lonCnt = lonVar->num_vals();
double* lonVals = new double[lonCnt];
lonVar->get(lonVals, lonCnt);
inputData.lonUnits = GrabAttribute(lonVar, 0);
inputData.lonSpacing = strtod(GrabAttribute(lonVar, 1).c_str(), NULL);
const long minLonIndex = lower_bound(lonVals, lonmin, lonCnt);
const long maxLonIndex = upper_bound(lonVals, lonmax, lonCnt);
delete lonVals;
lonCnt = (maxLonIndex - minLonIndex) + 1;
lonVar->set_cur(minLonIndex);
inputData.lonVals = new double[lonCnt];
lonVar->get(inputData.lonVals, lonCnt);
NcVar* reflectVar = NULL;
reflectVar = radarFile.get_var("value");
if ( reflectVar == NULL )
{
// Try this variable name
reflectVar = radarFile.get_var("Reflectivity");
}
if (reflectVar == NULL)
{
cerr << "ERROR: invalid data file. No variable called 'value'!\n";
radarFile.close();
return(inputData);
}
inputData.dataEdges = reflectVar->edges(); // [0] - time, [1] - lat, [2] - lon
inputData.dataEdges[1] = latCnt;
inputData.dataEdges[2] = lonCnt;
inputData.dataVals = new double[inputData.dataEdges[0] * inputData.dataEdges[1] * inputData.dataEdges[2]];
reflectVar->set_cur(0, minLatIndex, minLonIndex);
reflectVar->get(inputData.dataVals, inputData.dataEdges);
inputData.var_LongName = GrabAttribute(reflectVar, 0);
inputData.var_Units = "dBZ";//GrabAttribute(reflectVar, 1);
NcVar* timeVar = radarFile.get_var("time");
if (NULL == timeVar)
{
cerr << "ERROR: invalid data file. No variable called 'time'!\n";
radarFile.close();
return(inputData);
}
inputData.scanTime = timeVar->as_long(0);
inputData.timeUnits = GrabAttribute(timeVar, 0);
NcAtt* titleAttrib = radarFile.get_att("title");
inputData.fileTitle = (NULL == titleAttrib ? "" : titleAttrib->as_string(0));
delete titleAttrib;
radarFile.close();
// Success!
inputData.inputFilename = filename;
return(inputData);
}
void ReadCFTimeDataFromNcFile(
NcFile * ncfile,
const std::string & strFilename,
std::vector<Time> & vecTimes,
bool fWarnOnMissingCalendar
) {
// Empty existing Time vector
vecTimes.clear();
// Get time dimension
NcDim * dimTime = ncfile->get_dim("time");
if (dimTime == NULL) {
_EXCEPTION1("Dimension \"time\" not found in file \"%s\"",
strFilename.c_str());
}
// Get time variable
NcVar * varTime = ncfile->get_var("time");
if (varTime == NULL) {
_EXCEPTION1("Variable \"time\" not found in file \"%s\"",
strFilename.c_str());
}
if (varTime->num_dims() != 1) {
_EXCEPTION1("Variable \"time\" has more than one dimension in file \"%s\"",
strFilename.c_str());
}
if (strcmp(varTime->get_dim(0)->name(), "time") != 0) {
_EXCEPTION1("Variable \"time\" does not have dimension \"time\" in file \"%s\"",
strFilename.c_str());
}
// Calendar attribute
NcAtt * attTimeCal = varTime->get_att("calendar");
std::string strCalendar;
if (attTimeCal == NULL) {
if (fWarnOnMissingCalendar) {
Announce("WARNING: Variable \"time\" is missing \"calendar\" attribute; assuming \"standard\"");
}
strCalendar = "standard";
} else {
strCalendar = attTimeCal->as_string(0);
}
Time::CalendarType eCalendarType =
Time::CalendarTypeFromString(strCalendar);
// Units attribute
NcAtt * attTimeUnits = varTime->get_att("units");
if (attTimeUnits == NULL) {
_EXCEPTION1("Variable \"time\" is missing \"units\" attribute in file \"%s\"",
strFilename.c_str());
}
std::string strTimeUnits = attTimeUnits->as_string(0);
// Load in time data
DataVector<int> vecTimeInt;
DataVector<float> vecTimeFloat;
DataVector<double> vecTimeDouble;
DataVector<ncint64> vecTimeInt64;
if (varTime->type() == ncInt) {
vecTimeInt.Initialize(dimTime->size());
varTime->set_cur((long)0);
varTime->get(&(vecTimeInt[0]), dimTime->size());
} else if (varTime->type() == ncFloat) {
vecTimeFloat.Initialize(dimTime->size());
varTime->set_cur((long)0);
varTime->get(&(vecTimeFloat[0]), dimTime->size());
} else if (varTime->type() == ncDouble) {
vecTimeDouble.Initialize(dimTime->size());
varTime->set_cur((long)0);
varTime->get(&(vecTimeDouble[0]), dimTime->size());
} else if (varTime->type() == ncInt64) {
vecTimeInt64.Initialize(dimTime->size());
varTime->set_cur((long)0);
varTime->get(&(vecTimeInt64[0]), dimTime->size());
} else {
_EXCEPTION1("Variable \"time\" has invalid type "
"(expected \"int\", \"int64\", \"float\" or \"double\")"
" in file \"%s\"", strFilename.c_str());
}
for (int t = 0; t < dimTime->size(); t++) {
Time time(eCalendarType);
if (varTime->type() == ncInt) {
time.FromCFCompliantUnitsOffsetInt(
strTimeUnits,
vecTimeInt[t]);
} else if (varTime->type() == ncFloat) {
time.FromCFCompliantUnitsOffsetDouble(
strTimeUnits,
static_cast<double>(vecTimeFloat[t]));
} else if (varTime->type() == ncDouble) {
time.FromCFCompliantUnitsOffsetDouble(
strTimeUnits,
vecTimeDouble[t]);
} else if (varTime->type() == ncInt64) {
time.FromCFCompliantUnitsOffsetInt(
strTimeUnits,
(int)(vecTimeInt64[t]));
}
vecTimes.push_back(time);
}
}
int main(void)
{
// These will hold our pressure and temperature data.
float presIn[NLAT][NLON];
float tempIn[NLAT][NLON];
// These will hold our latitudes and longitudes.
float latsIn[NLAT];
float lonsIn[NLON];
// Change the error behavior of the netCDF C++ API by creating an
// NcError object. Until it is destroyed, this NcError object will
// ensure that the netCDF C++ API silently returns error codes on
// any failure, and leaves any other error handling to the calling
// program. In the case of this example, we just exit with an
// NC_ERR error code.
NcError err(NcError::silent_nonfatal);
// Open the file and check to make sure it's valid.
NcFile dataFile("sfc_pres_temp.nc", NcFile::ReadOnly);
if(!dataFile.is_valid())
return NC_ERR;
// There are a number of inquiry functions in netCDF which can be
// used to learn about an unknown netCDF file. In this case we know
// that there are 2 netCDF dimensions, 4 netCDF variables, no
// global attributes, and no unlimited dimension.
if (dataFile.num_dims() != 2 || dataFile.num_vars() != 4 ||
dataFile.num_atts() != 0 || dataFile.rec_dim() != 0)
return NC_ERR;
// We get back a pointer to each NcVar we request. Get the
// latitude and longitude coordinate variables.
NcVar *latVar, *lonVar;
if (!(latVar = dataFile.get_var("latitude")))
return NC_ERR;
if (!(lonVar = dataFile.get_var("longitude")))
return NC_ERR;
// Read the latitude and longitude coordinate variables into arrays
// latsIn and lonsIn.
if (!latVar->get(latsIn, NLAT))
return NC_ERR;
if (!lonVar->get(lonsIn, NLON))
return NC_ERR;
// Check the coordinate variable data.
for(int lat = 0; lat < NLAT; lat++)
if (latsIn[lat] != START_LAT + 5. * lat)
return NC_ERR;
// Check longitude values.
for (int lon = 0; lon < NLON; lon++)
if (lonsIn[lon] != START_LON + 5. * lon)
return NC_ERR;
// We get back a pointer to each NcVar we request.
NcVar *presVar, *tempVar;
if (!(presVar = dataFile.get_var("pressure")))
return NC_ERR;
if (!(tempVar = dataFile.get_var("temperature")))
return NC_ERR;
// Read the data. Since we know the contents of the file we know
// that the data arrays in this program are the correct size to
// hold all the data.
if (!presVar->get(&presIn[0][0], NLAT, NLON))
return NC_ERR;
if (!tempVar->get(&tempIn[0][0], NLAT, NLON))
return NC_ERR;
// Check the data.
for (int lat = 0; lat < NLAT; lat++)
for (int lon = 0; lon < NLON; lon++)
if (presIn[lat][lon] != SAMPLE_PRESSURE + (lon * NLAT + lat)
|| tempIn[lat][lon] != SAMPLE_TEMP + .25 * (lon * NLAT + lat))
return NC_ERR;
// Each of the netCDF variables has a "units" attribute. Let's read
// them and check them.
NcAtt *att;
char *units;
if (!(att = latVar->get_att("units")))
return NC_ERR;
units = att->as_string(0);
if (strncmp(units, "degrees_north", strlen("degrees_north")))
return NC_ERR;
// Attributes and attribute values should be deleted by the caller
// when no longer needed, to prevent memory leaks.
delete units;
delete att;
if (!(att = lonVar->get_att("units")))
return NC_ERR;
units = att->as_string(0);
if (strncmp(units, "degrees_east", strlen("degrees_east")))
return NC_ERR;
delete units;
delete att;
if (!(att = presVar->get_att("units")))
return NC_ERR;
units = att->as_string(0);
if (strncmp(units, "hPa", strlen("hPa")))
return NC_ERR;
delete units;
delete att;
if (!(att = tempVar->get_att("units")))
return NC_ERR;
units = att->as_string(0);
if (strncmp(units, "celsius", strlen("celsius")))
return NC_ERR;
delete units;
delete att;
// The file will be automatically closed by the destructor. This
// frees up any internal netCDF resources associated with the file,
// and flushes any buffers.
cout << "*** SUCCESS reading example file sfc_pres_temp.nc!" << endl;
return 0;
}
int main(int argc, char** argv) {
NcError error(NcError::silent_nonfatal);
try {
// Input filename
std::string strInputFile;
// Output mesh filename
std::string strOutputFile;
// Polynomial degree per element
int nP = 2;
// Parse the command line
BeginCommandLine()
CommandLineString(strInputFile, "in", "");
CommandLineString(strOutputFile, "out", "");
//CommandLineInt(nP, "np", 2);
//CommandLineBool(fCGLL, "cgll");
ParseCommandLine(argc, argv);
EndCommandLine(argv)
// Check file names
if (strInputFile == "") {
std::cout << "ERROR: No input file specified" << std::endl;
return (-1);
}
if (strOutputFile == "") {
std::cout << "ERROR: No output file specified" << std::endl;
return (-1);
}
if (nP < 1) {
std::cout << "ERROR: --np must be >= 2" << std::endl;
return (-1);
}
AnnounceBanner();
// Load input mesh
AnnounceStartBlock("Loading input mesh");
Mesh meshIn(strInputFile);
meshIn.RemoveZeroEdges();
AnnounceEndBlock("Done");
// Construct edge map
AnnounceStartBlock("Constructing edge map");
meshIn.ConstructEdgeMap();
AnnounceEndBlock("Done");
// Build connectivity vector using edge map
AnnounceStartBlock("Constructing connectivity");
std::vector< std::set<int> > vecConnectivity;
int err = GenerateConnectivityData(meshIn, vecConnectivity);
if (err) return err;
AnnounceEndBlock("Done");
// Open output file
AnnounceStartBlock("Writing connectivity file");
NcFile ncmesh(strInputFile.c_str(), NcFile::ReadOnly);
NcVar * varLat = ncmesh.get_var("grid_center_lat");
NcVar * varLon = ncmesh.get_var("grid_center_lon");
// Check if center latitudes and longitudes are already available
DataArray1D<double> dAllLats;
DataArray1D<double> dAllLons;
bool fConvertLatToDegrees = true;
bool fConvertLonToDegrees = true;
if ((varLat == NULL) || (varLon == NULL)) {
Announce("grid_center_lat not found, recalculating face centers");
} else {
Announce("grid_center_lat found in file, loading values");
if (varLat->get_dim(0)->size() != vecConnectivity.size()) {
_EXCEPTIONT("grid_center_lat dimension mismatch");
}
if (varLon->get_dim(0)->size() != vecConnectivity.size()) {
_EXCEPTIONT("grid_center_lon dimension mismatch");
}
dAllLats.Allocate(vecConnectivity.size());
varLat->set_cur((long)0);
varLat->get(dAllLats, vecConnectivity.size());
NcAtt * attLatUnits = varLat->get_att("units");
std::string strLatUnits = attLatUnits->as_string(0);
if (strLatUnits == "degrees") {
fConvertLatToDegrees = false;
}
dAllLons.Allocate(vecConnectivity.size());
varLon->set_cur((long)0);
varLon->get(dAllLons, vecConnectivity.size());
NcAtt * attLonUnits = varLon->get_att("units");
std::string strLonUnits = attLonUnits->as_string(0);
if (strLonUnits == "degrees") {
fConvertLonToDegrees = false;
}
}
// Write connectiivty file
FILE * fp = fopen(strOutputFile.c_str(), "w");
fprintf(fp, "%lu\n", vecConnectivity.size());
for (size_t f = 0; f < vecConnectivity.size(); f++) {
double dLon;
double dLat;
if ((varLat == NULL) || (varLon == NULL)) {
Node nodeCentroid;
for (int i = 0; i < meshIn.faces[f].edges.size(); i++) {
nodeCentroid.x += meshIn.nodes[meshIn.faces[f][i]].x;
nodeCentroid.y += meshIn.nodes[meshIn.faces[f][i]].y;
nodeCentroid.z += meshIn.nodes[meshIn.faces[f][i]].z;
}
double dMagnitude = nodeCentroid.Magnitude();
nodeCentroid.x /= dMagnitude;
nodeCentroid.y /= dMagnitude;
nodeCentroid.z /= dMagnitude;
dLon = atan2(nodeCentroid.y, nodeCentroid.x);
dLat = asin(nodeCentroid.z);
if (dLon < 0.0) {
dLon += 2.0 * M_PI;
}
} else {
dLon = dAllLons[f];
dLat = dAllLats[f];
}
if (fConvertLonToDegrees) {
dLon *= 180.0 / M_PI;
}
if (fConvertLatToDegrees) {
dLat *= 180.0 / M_PI;
}
fprintf(fp, "%1.14f,", dLon);
fprintf(fp, "%1.14f,", dLat);
fprintf(fp, "%lu", vecConnectivity[f].size());
std::set<int>::const_iterator iter = vecConnectivity[f].begin();
for (; iter != vecConnectivity[f].end(); iter++) {
fprintf(fp, ",%i", *iter);
}
if (f != vecConnectivity.size()-1) {
fprintf(fp,"\n");
}
}
fclose(fp);
AnnounceEndBlock("Done");
// Announce
AnnounceBanner();
return (0);
} catch(Exception & e) {
Announce(e.ToString().c_str());
return (-1);
} catch(...) {
return (-2);
}
}
bool
RemapWidget::getVolumeInfo(QString volfile,
int &skipheaderbytes,
uchar &voxelType,
int &voxelUnit,
float &vx, float &vy, float &vz,
QString &description,
QList<float> &rawMap,
QList<uchar> &pvlMap,
int &depth,
int &width,
int &height)
{
NcError err(NcError::verbose_nonfatal);
NcFile pvlFile(volfile.toAscii().data(), NcFile::ReadOnly);
if (!pvlFile.is_valid())
{
QMessageBox::information(0, "Error",
QString("%1 is not a valid preprocessed volume file").arg(volfile));
return false;
}
int i;
NcAtt *att;
char *attval;
QString pvalue;
att = pvlFile.get_att("description");
if (att)
{
attval = att->as_string(0);
description = attval;
delete [] attval;
}
att = pvlFile.get_att("voxeltype");
if (att)
{
attval = att->as_string(0);
pvalue = attval;
if (pvalue == "unsigned char")
voxelType = Raw2Pvl::_UChar;
if (pvalue == "char")
voxelType = Raw2Pvl::_Char;
if (pvalue == "unsigned short")
voxelType = Raw2Pvl::_UShort;
if (pvalue == "short")
voxelType = Raw2Pvl::_Short;
if (pvalue == "int")
voxelType = Raw2Pvl::_Int;
if (pvalue == "float")
voxelType = Raw2Pvl::_Float;
delete [] attval;
}
att = pvlFile.get_att("voxelunit");
if (att)
{
attval = att->as_string(0);
pvalue = attval;
voxelUnit = Raw2Pvl::_Nounit;
if (pvalue == "angstrom")
voxelUnit = Raw2Pvl::_Angstrom;
else if (pvalue == "nanometer")
voxelUnit = Raw2Pvl::_Nanometer;
else if (pvalue == "micron")
voxelUnit = Raw2Pvl::_Micron;
else if (pvalue == "millimeter")
voxelUnit = Raw2Pvl::_Millimeter;
else if (pvalue == "centimeter")
voxelUnit = Raw2Pvl::_Centimeter;
else if (pvalue == "meter")
voxelUnit = Raw2Pvl::_Meter;
else if (pvalue == "kilometer")
voxelUnit = Raw2Pvl::_Kilometer;
else if (pvalue == "parsec")
voxelUnit = Raw2Pvl::_Parsec;
else if (pvalue == "kiloparsec")
voxelUnit = Raw2Pvl::_Kiloparsec;
delete [] attval;
}
att = pvlFile.get_att("gridsize");
if (att)
{
depth = att->as_int(0);
width = att->as_int(1);
height = att->as_int(2);
}
att = pvlFile.get_att("voxelsize");
if (att)
{
vx = att->as_float(0);
vy = att->as_float(1);
vz = att->as_float(2);
}
att = pvlFile.get_att("skipheaderbytes");
if (att)
skipheaderbytes = att->as_int(0);
att = pvlFile.get_att("mapraw");
if (att)
{
for(i=0; i<att->num_vals(); i++)
rawMap.append(att->as_float(i));
att = pvlFile.get_att("mappvl");
for(i=0; i<att->num_vals(); i++)
pvlMap.append(att->as_ncbyte(i));
}
pvlFile.close();
return true;
}
void
avtS3DFileFormat::PopulateDatabaseMetaData(avtDatabaseMetaData *md,
int timeState)
{
debug5 << "avtS3DFileFormat::PopulateDatabaseMetaData" << endl;
// Get the metadata from the log file first.
OpenLogFile();
// Mesh
avtMeshMetaData *mesh = new avtMeshMetaData;
mesh->name = "mesh";
mesh->meshType = AVT_RECTILINEAR_MESH;
mesh->numBlocks = procs[0] * procs[1] * procs[2];
mesh->blockOrigin = 1;
mesh->cellOrigin = 0;
mesh->spatialDimension = 3;
mesh->topologicalDimension = 3;
mesh->blockTitle = "blocks";
mesh->blockPieceName = "block";
mesh->hasSpatialExtents = false;
mesh->xUnits = "mm";
mesh->yUnits = "mm";
mesh->zUnits = "mm";
md->Add(mesh);
//
// Look in the NetCDF file for the first block for the list of variables.
//
// Calculate the timestep directory that the data lives in.
char *pathcopy = strdup(mainFilename);
string dir = parse_dirname(pathcopy);
string timestepDir = CreateStringFromDouble(fileTimes[timeState]);
char path[256];
SNPRINTF(path,256,"%s%s%s%sfield.00000",dir.c_str(),VISIT_SLASH_STRING, timestepDir.c_str(), VISIT_SLASH_STRING);
NcError err(NcError::verbose_nonfatal);
NcFile nf(path);
if (!nf.is_valid())
{
EXCEPTION1(InvalidFilesException, path);
}
debug5 << "avtS3DFileFormat::PopulateDatabaseMetaData: Got valid file" << endl;
int nvars = nf.num_vars();
debug5 << "avtS3DFileFormat::PopulateDatabaseMetaData: Found " << nvars << " variables" << endl;
for (int i=0 ; i<nvars; i++)
{
NcVar *v = nf.get_var(i);
if (!v)
continue;
debug4 << "Found variable " << v->name() << endl;
// Check dimensionality
int nvals = v->num_vals();
if (nvals != 1) // Single scalars are useless.
{
avtScalarMetaData *scalar = new avtScalarMetaData();
scalar->name = v->name();
scalar->meshName = "mesh";
scalar->centering = AVT_NODECENT;
scalar->hasDataExtents = false;
scalar->treatAsASCII = false;
NcAtt *units = v->get_att(NcToken("units"));
if (units)
{
long nv = units->num_vals();
if (nv == 0)
{
scalar->hasUnits = false;
} else {
char *unitString = units->as_string(0);
scalar->units = unitString;
scalar->hasUnits = true;
}
} else
scalar->hasUnits = false;
md->Add(scalar);
} else {
debug4 << "Unable to process variable " << v->name() <<
" since it is a single scalar" << endl;
}
}
#if 0
// Expressions
Expression tempGradient_expr;
tempGradient_expr.SetName("Temperature_gradient");
tempGradient_expr.SetDefinition("gradient(Temperature)");
tempGradient_expr.SetType(Expression::VectorMeshVar);
tempGradient_expr.SetHidden(true);
md->AddExpression(&tempGradient_expr);
Expression tempUnit_expr;
tempUnit_expr.SetName("Temperature_grad_unit");
//tempUnit_expr.SetDefinition("(Temperature_gradient + {1e-6,0,0})/(magnitude(Temperature_gradient) + 1e-6)");
//tempUnit_expr.SetDefinition("Temperature_gradient/(magnitude(Temperature_gradient) + 1e-6)");
tempUnit_expr.SetDefinition("normalize(Temperature_gradient)");
tempUnit_expr.SetType(Expression::VectorMeshVar);
tempUnit_expr.SetHidden(true);
md->AddExpression(&tempUnit_expr);
Expression tempCurv_expr;
tempCurv_expr.SetName("Temperature_curvature");
tempCurv_expr.SetDefinition("divergence(Temperature_grad_unit)");
tempCurv_expr.SetType(Expression::ScalarMeshVar);
tempUnit_expr.SetHidden(false);
md->AddExpression(&tempCurv_expr);
#endif
}