void
ViewerDatabaseCorrelationMethods::CreateNode(DataNode *parentNode,
const std::map<std::string, std::string> &dbToSource, bool detailed)
{
// Create a copy of the database correlation list.
DatabaseCorrelationList dbcl(*GetViewerState()->GetDatabaseCorrelationList());
dbcl.ClearCorrelations();
for(int i = 0;
i < GetViewerState()->GetDatabaseCorrelationList()->GetNumCorrelations(); ++i)
{
const DatabaseCorrelation &corr =
GetViewerState()->GetDatabaseCorrelationList()->GetCorrelations(i);
// Let's only save out correlations that have more than 1 db.
if(corr.GetNumDatabases() > 1)
{
// Map database names to source names.
const stringVector &dbNames = corr.GetDatabaseNames();
stringVector sourceIds;
for(size_t j = 0; j < dbNames.size(); ++j)
{
std::map<std::string, std::string>::const_iterator pos =
dbToSource.find(dbNames[j]);
if(pos == dbToSource.end())
sourceIds.push_back(dbNames[j]);
else
sourceIds.push_back(pos->second);
}
// Create a copy of the correlation but override its database
// names with source ids. Also, note that we're not using a
// copy constructor because we want most of the correlation
// information to be absent so we can repopulate it on session read
// in case a new database is chosen.
DatabaseCorrelation modCorr;
if(corr.GetMethod() != DatabaseCorrelation::UserDefinedCorrelation)
{
modCorr.SetName(corr.GetName());
modCorr.SetNumStates(corr.GetNumStates());
modCorr.SetMethod(corr.GetMethod());
}
else
{
// A user-defined correlation should be saved mostly as-is.
modCorr = corr;
}
modCorr.SetDatabaseNames(sourceIds);
// Add the modified correlation to the list.
dbcl.AddCorrelations(modCorr);
}
}
// Add the database correlation list information to the session.
dbcl.CreateNode(parentNode, detailed, false);
}
DatabaseCorrelation *
ViewerDatabaseCorrelationMethods::CreateDatabaseCorrelation(const std::string &name,
const stringVector &dbs, int method, int nStates)
{
if(dbs.size() < 1)
{
GetViewerMessaging()->Error(
TR("VisIt cannot create a database correlation that does "
"not use any databases."));
return 0;
}
//
// Create a new correlation and set its basic attributes.
//
DatabaseCorrelation *correlation = new DatabaseCorrelation;
correlation->SetName(name);
DatabaseCorrelation::CorrelationMethod m =
(DatabaseCorrelation::CorrelationMethod)method;
correlation->SetMethod(m);
if(nStates != -1 &&
(m == DatabaseCorrelation::IndexForIndexCorrelation ||
m == DatabaseCorrelation::StretchedIndexCorrelation))
{
correlation->SetNumStates(nStates);
}
// Add the different databases to the correlation.
for(size_t i = 0; i < dbs.size(); ++i)
{
//
// Split the database name into host and database components
// and expand it too.
//
std::string host, db;
std::string correlationDB(dbs[i]);
GetViewerFileServer()->ExpandDatabaseName(correlationDB, host, db);
//
// Get the metadata for the database.
//
const avtDatabaseMetaData *md = GetViewerFileServer()->GetMetaData(host, db);
//
// We might need to re-acqure metadata if we are doing
// time or cycle correlations and times or cycles are not
// all accurate and valid
//
if(md)
{
const bool forceReadAllCyclesAndTimes = true;
if ((m == DatabaseCorrelation::TimeCorrelation &&
md->AreAllTimesAccurateAndValid() == false) ||
(m == DatabaseCorrelation::CycleCorrelation &&
md->AreAllCyclesAccurateAndValid() == false))
{
md = GetViewerFileServer()->GetMetaData(host, db, forceReadAllCyclesAndTimes);
}
}
if(md)
{
//
// Issue warning messages if we're doing time or cycle
// correlations and the metadata cannot be trusted.
//
if(m == DatabaseCorrelation::TimeCorrelation)
{
bool accurate = true;
for(int j = 0; j < md->GetNumStates() && accurate; ++j)
accurate &= md->IsTimeAccurate(j);
if(!accurate)
{
GetViewerMessaging()->Warning(
TR("The times for %1 may not be accurate so the new "
"correlation %2 might not work as expected.").
arg(correlationDB).
arg(name));
}
}
else if(m == DatabaseCorrelation::CycleCorrelation)
{
bool accurate = true;
for(int j = 0; j < md->GetNumStates() && accurate; ++j)
accurate &= md->IsCycleAccurate(j);
if(!accurate)
{
GetViewerMessaging()->Warning(
TR("The cycles for %1 may not be accurate so the new "
"correlation %2 might not work as expected.").
arg(correlationDB).
arg(name));
}
}
//
// Add the database to the new correlation.
//
correlation->AddDatabase(correlationDB, md->GetNumStates(),
md->GetTimes(), md->GetCycles());
}
else
{
delete correlation; correlation = 0;
GetViewerMessaging()->Error(
TR("VisIt could not retrieve metadata for %1 so the "
"correlation %2 could not be created.").
arg(correlationDB).
arg(name));
break;
}
}
return correlation;
}