rotor_bank_state()

MAYAFLUX_API std::vector< double > MayaFlux::Kinesis::Discrete::rotor_bank_state	(	std::span< const double >	increments,
		std::span< const double >	scales = {},
		std::span< const double >	phases = {}
	)

Builds the array rotor_bank reads and writes.

Parameters

increments	Radians per sample of each sinusoid; sets the count
scales	Amplitude of each; missing entries are 1
phases	Starting phase of each; missing entries are 0

Layout: [N, cos(increment), sin(increment), scales, re, im], each column N long. The rotation is precomputed here, so a call needs no sine.

Definition at line 199 of file Kernels.cpp.

{
    const size_t n = increments.size();
    std::vector<double> state(1 + 5 * n, 0.0);
    state.front() = static_cast<double>(n);
 
    for (size_t i = 0; i < n; ++i) {
        const double phase = i < phases.size() ? phases[i] : 0.0;
        state.at(1 + i) = std::cos(increments[i]);
        state.at(1 + n + i) = std::sin(increments[i]);
        state.at(1 + 2 * n + i) = i < scales.size() ? scales[i] : 1.0;
        state.at(1 + 3 * n + i) = std::cos(phase);
        state.at(1 + 4 * n + i) = std::sin(phase);
    }
    return state;
}