Method analyze

SRC/analysis/analysis/ResponseSpectrumAnalysis.cpp:340–386

}

int ResponseSpectrumAnalysis::analyze()
{
	// get the domain
	Domain* domain = m_model->getDomainPtr();

	// get the modal properties
	DomainModalProperties mp;
	if (domain->getModalProperties(mp) < 0) {
		opserr << "ResponseSpectrumAnalysis::analyze() - failed to get modal properties" << endln;
		return -1;
	}

	// size info
	int num_eigen = domain->getEigenvalues().Size();

	// check consistency
	int error_code;
	error_code = check();
	if (error_code < 0) return error_code;

	// loop over all required eigen-modes, compute the modal displacement
	// and save the results.
	// we just compute modal displacements without doing any (SRSS, CQC, etc..)
	// modal combination otherwise derived results cannot be computed.
	// for each mode, this analysis produces a new analysis step.
	// modal combination of displacements (or any derived results)
	// it's up to the user.
	for (m_current_mode = 0; m_current_mode < num_eigen; ++m_current_mode)
	{
		// init the new step
		error_code = beginMode();
		if (error_code < 0) return error_code;

		// compute modal acceleration for this mode using the 
		// provided response spectrum function (time series)
		error_code = solveMode();
		if (error_code < 0) return error_code;

		// done with the current step.
		// here the modal displacements will be recorded (and all other results
		// if requested via recorders...)
		error_code = endMode();
		if (error_code < 0) return error_code;
	}

	return 0;
}

int ResponseSpectrumAnalysis::analyze(int mode_id)
{