robert@464: /*
robert@464:  *
robert@464:  * 1-D string consisting of two waveguides and junction
robert@464:  *
robert@464:  * Christian Heinrichs 04/2015
robert@464:  *
robert@464:  */
robert@464: 
robert@464: #include "String.h"
robert@464: #include "Junction.h"
robert@464: #include "Waveguide.h"
robert@464: 
robert@464: #include "../include/Utilities.h"
robert@464: #include <rtdk.h>
robert@464: #include <cmath>
robert@464: #include <stdio.h>
robert@464: #include <cstdlib>
robert@464: 
robert@464: String::String(){
robert@464: 
robert@464: 	wg_l = Waveguide();
robert@464: 	wg_r = Waveguide();
robert@464: 	junction = Junction();
robert@464: 
robert@464: 	junction.setPluckPosition(0.5);
robert@464: 
robert@464: 	_previous_l = 0;
robert@464: 	_previous_r = 0;
robert@464: 
robert@464: }
robert@464: 
robert@464: float String::update(float in)	{
robert@464: 
robert@464: 	// 1. send excitation signal and previous waveguide outputs into junction
robert@464: 
robert@464: 	junction.update(in,_previous_l,_previous_r);
robert@464: 
robert@464: 	// 2. save new waveguide outputs for next iteration
robert@464: 
robert@464: 	_previous_l = wg_l.update(junction.getOutput(0));
robert@464: 	_previous_r = wg_r.update(junction.getOutput(1));
robert@464: 
robert@464: 	// 3. use right waveguide as output
robert@464: 
robert@464: 	//rt_printf("BANANA %f ",_readPtr);
robert@464: 	//rt_printf("%f\n",_previous_r);
robert@464: 
robert@464: 	return _previous_r;
robert@464: }
robert@464: 
robert@464: float String::getPlectrumDisplacement()	{
robert@464: 
robert@464: 	return junction.getExcitationDisplacement();
robert@464: 
robert@464: }
robert@464: 
robert@464: void String::setPluckPosition(float pluckPos){
robert@464: 
robert@464: 	junction.setPluckPosition(pluckPos);
robert@464: 
robert@464: }
robert@464: 
robert@464: void String::setGlobalPosition(float pos)	{
robert@464: 
robert@464: 	_globalPosition = pos;
robert@464: 
robert@464: }
robert@464: 
robert@464: float String::getGlobalPosition()	{
robert@464: 
robert@464: 	return _globalPosition;
robert@464: 
robert@464: }
robert@464: 
robert@464: void String::setMidinote(float midinote)	{
robert@464: 
robert@464: 	float frequency = 440.0f*(float)powf(2,(midinote-57)/12.0f);
robert@464: 
robert@464: 	junction.setFrequency(frequency);
robert@464: 	wg_l.setFrequency(frequency);
robert@464: 	wg_r.setFrequency(frequency);
robert@464: 
robert@464: }
robert@464: 
robert@464: void String::setFrequency(float frequency)	{
robert@464: 
robert@464: 	junction.setFrequency(frequency);
robert@464: 	wg_l.setFrequency(frequency);
robert@464: 	wg_r.setFrequency(frequency);
robert@464: 
robert@464: }