I am using the c++ API to access *.odb files. Reading the file is no problem, unless the file is bigger than my RAM.
There are two routines in the documentation to read the data (in my case fieldOutputs) from the odb-file.
1. Bulk data
odb_FieldOutput& disp = lastFrame.fieldOutputs()["U"];
const odb_SequenceFieldBulkData& seqDispBulkData = disp.bulkDataBlocks();
int numDispBlocks = seqDispBulkData.size();
for (int iblock=0; iblock<numDispBlocks; iblock++) {
const odb_FieldBulkData& bulkData = seqDispBulkData[iblock];
int numNodes = bulkData.length();
int numComp = bulkData.width();
float* data = bulkData.data();
int* nodeLabels = bulkData.nodeLabels();
for (int node=0,pos=0; node<numNodes; node++) {
int nodeLabel = nodeLabels[node];
cout << "Node = " << nodeLabel;
cout << " U = ";
for (int comp=0;comp<numComp;comp++) {
cout << data[pos++] << " ";
}
cout << endl;
}
}
2 Value
const odb_SequenceFieldValue& displacements = lastFrame.fieldOutputs()["U"].values();
int numValues = displacements.size();
int numComp = 0;
for (int i=0; i<numValues; i++) {
const odb_FieldValue val = displacements[i];
cout << "Node = " << val.nodeLabel();
const float* const U = val.data(numComp);
cout << ", U = ";
for (int comp=0;comp<numComp;comp++)
cout << U[comp] << " ";
}
cout << endl;
}
What I would like to do is to read the Data from the file and save them into a mat file.
Shape of the data:
Odb-file is a data base which can be represented as a tree structure.
It contains steps. Each step contains frames and each frame contains fieldOutputs. Those fieldOutputs can be matrices or vectors. The dimension depends on the number of nodes and the number of parameters per fieldOutput.
My question:
Is one of the mentioned routines capable of loading files bigger than the RAM successively? If yes, I would be happy to get some hints.
Additional information:
Documentation: http://abaqus.software.polimi.it/v6.12/books/ker/default.htm and http://xn--90ajn.xn--p1ai:2080/v6.12/pdf_books/SCRIPT_USER.pdf I am using Abaqus 6.12 and visual studio 2010 compiler.
