如何初始化ODA STEP SDK以使用SDAI API？

// Common ODA IFC SDK initialization part

OdStaticRxObject<MyServices> svcs;

odrxInitialize(&svcs);

odStepInitialize(false /* No CDA */, false /* No geometry calculation needed */);

// SDAI calls can be performed just after common initialization procedure

SdaiSession session = sdaiOpenSession();

// Preload schema which is used within c:\\file.step

SdaiString schemaFileName = "c:\\AP214E3_2010.exp";

sdaiGetSchema(schemaFileName);

SdaiRep repo = _sdaiCreateRepositoryFromFile(session, "c:\\file.step", "");

SdaiRep repoOpened = sdaiOpenRepositoryBN(session, "c:\\file.step ");

SdaiModel modelRO = sdaiAccessModelBN(repoOpened, "default", sdaiRO);

SdaiSet cartesianPoints = sdaiGetEntityExtentBN(modelRO, "cartesian_point");

SdaiIterator it = sdaiCreateIterator(cartesianPoints);

for (sdaiBeginning(it); sdaiNext(it);)

{

  SdaiAppInstance inst = nullptr;

  sdaiGetAggrByIterator(it, sdaiINSTANCE, &inst);

  ...

}

sdaiDeleteIterator(it);

sdaiCloseSession(session);

// Common ODA IFC SDK uninitialization part

odStepUninitialize();

odrxUninitialize();