dspark::wdf::RType< T, Children > Class Template Reference

N-port R-type adaptor for non-series/parallel interconnections. More...

#include <WDF.h>

Public Member Functions
	RType (const std::array< std::pair< int, int >, static_cast< size_t >(kNumPorts)> &portNodes, int numNodes, Children &... children) noexcept
void	prepare (double sampleRate) noexcept
void	updatePorts () noexcept
void	reset () noexcept
double	portResistance () const noexcept
T	reflected () noexcept
void	incident (T aUp) noexcept

Static Public Attributes
static constexpr int	kNumPorts = static_cast<int>(sizeof...(Children)) + 1
static constexpr int	kMaxNodes = 12

Detailed Description

template<FloatType T, typename... Children>
class dspark::wdf::RType< T, Children >

N-port R-type adaptor for non-series/parallel interconnections.

Port 0 faces up (toward the root) and is adapted: its resistance is set to the Thévenin resistance seen into the network, making S(0,0) = 0. Ports 1..N-1 connect the children, in declaration order. The topology is a list of (node+, node-) pairs over a small node graph (-1 = ground reference).

On every updatePorts() the scattering matrix is rebuilt from Modified Nodal Analysis with the children's current port resistances – O(nodes^3), a few microseconds for typical circuits, fine for pot automation.

Template Parameters

T	Sample type of the wave interface.
Children	Child node types, one per port 1..N-1.

Definition at line 562 of file WDF.h.

Constructor & Destructor Documentation

RType()

template<FloatType T, typename... Children>

dspark::wdf::RType< T, Children >::RType ( const std::array< std::pair< int, int >, static_cast< size_t >(kNumPorts)> &  portNodes, int  numNodes, Children &...  children  )

inlinenoexcept

Parameters

portNodes	(node+, node-) per port, port 0 first; -1 is ground.
numNodes	Number of non-ground nodes in the graph.
children	Child elements bound to ports 1..N-1, in order.

Definition at line 574 of file WDF.h.

Member Function Documentation

incident()

template<FloatType T, typename... Children>

void dspark::wdf::RType< T, Children >::incident ( T  aUp )

inlinenoexcept

Definition at line 659 of file WDF.h.

portResistance()

template<FloatType T, typename... Children>

double dspark::wdf::RType< T, Children >::portResistance ( ) const

inlinenoexcept

Definition at line 645 of file WDF.h.

prepare()

template<FloatType T, typename... Children>

void dspark::wdf::RType< T, Children >::prepare ( double  sampleRate )

inlinenoexcept

Definition at line 592 of file WDF.h.

reflected()

template<FloatType T, typename... Children>

T dspark::wdf::RType< T, Children >::reflected ( )

inlinenoexcept

Definition at line 647 of file WDF.h.

reset()

template<FloatType T, typename... Children>

void dspark::wdf::RType< T, Children >::reset ( )

inlinenoexcept

Definition at line 639 of file WDF.h.

updatePorts()

template<FloatType T, typename... Children>

void dspark::wdf::RType< T, Children >::updatePorts ( )

inlinenoexcept

Definition at line 597 of file WDF.h.

Member Data Documentation

kMaxNodes

template<FloatType T, typename... Children>

constexpr int dspark::wdf::RType< T, Children >::kMaxNodes = 12

staticconstexpr

Definition at line 566 of file WDF.h.

kNumPorts

template<FloatType T, typename... Children>

constexpr int dspark::wdf::RType< T, Children >::kNumPorts = static_cast<int>(sizeof...(Children)) + 1

staticconstexpr

Definition at line 565 of file WDF.h.

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The documentation for this class was generated from the following file:

• Core/WDF.h