csl::RandEnvelope Class Reference

#include <Envelope.h>

Inheritance diagram for csl::RandEnvelope:

List of all members.

Public Member Functions
	RandEnvelope (float frequency=1, float amplitude=1, float offset=0, float step=0)
	defaults are 1 Hz, +- 1.0 range
	~RandEnvelope ()
void	setWalk (bool walk)
	Accessors.
void	setAmplitude (float amplitude)
void	setFrequency (float frequency)
void	setStep (float step)
void	setOffset (float offset)
virtual bool	isActive ()
	This answers whether I'm active (ptr < end).
void	reset ()
	These are no-ops in Random envelopes.
void	trigger ()
	reset internal time to restart envelope
void	dump ()
	reset internal time to restart envelope
void	setDuration (float d)
	print the receiver
void	scaleTimes (float s)
	set/scale durations
void	nextBuffer (Buffer &outputBuffer, unsigned outBufNum) throw (CException)
	scale durations
Protected Member Functions
void	initSegment ()
	set up the line segment
void	nextSegment ()
	choose the values for the next line segment
Protected Attributes
float	mLastVal
	last line segment ending value (unscaled and unoffset)
float	mFrequency
	frequency for picking new values
float	mAmplitude
	scale (+-)
float	mStep
	max step between values (+-)
float	mOffset
	DC offset.
unsigned	mCurrentIndex
	current index in line segment
unsigned	mSegmentLength
	line segment's length in frames
bool	mWalk
	whether to produce random values or a random walk
LineSegment	mSegment
	single line segment

---

Detailed Description

RandEnvelope envelope class -- makes random control signals using a single line segment

---

Constructor & Destructor Documentation

RandEnvelope::RandEnvelope	(	float	frequency = 1,
		float	amplitude = 1,
		float	offset = 0,
		float	step = 0
	)

defaults are 1 Hz, +- 1.0 range

~~~~~~~~ RandEnvelope envelope class ~~~~~~~

References initSegment(), mAmplitude, csl::Envelope::mSegments, csl::Envelope::mSize, mStep, and csl::Envelope::mValues.

csl::RandEnvelope::~RandEnvelope

(

)

[inline]

---

Member Function Documentation

void csl::RandEnvelope::setWalk

(

bool

walk

)

[inline]

Accessors.

References mWalk.

void csl::RandEnvelope::setAmplitude

(

float

amplitude

)

[inline]

References mAmplitude.

void csl::RandEnvelope::setFrequency

(

float

frequency

)

[inline]

References mFrequency.

void csl::RandEnvelope::setStep

(

float

step

)

[inline]

References mStep.

void csl::RandEnvelope::setOffset

(

float

offset

)

[inline]

Reimplemented from csl::Scalable.

References mOffset.

virtual bool csl::RandEnvelope::isActive

(

)

[inline, virtual]

This answers whether I'm active (ptr < end).

Reimplemented from csl::Envelope.

void csl::RandEnvelope::reset

(

)

[inline, virtual]

These are no-ops in Random envelopes.

Reimplemented from csl::Envelope.

void csl::RandEnvelope::trigger

(

void

)

[inline, virtual]

reset internal time to restart envelope

Reimplemented from csl::Envelope.

void csl::RandEnvelope::dump

(

void

)

[inline, virtual]

reset internal time to restart envelope

Reimplemented from csl::Envelope.

void csl::RandEnvelope::setDuration

(

float

d

)

[inline, virtual]

print the receiver

Reimplemented from csl::Envelope.

void csl::RandEnvelope::scaleTimes

(

float

s

)

[inline, virtual]

set/scale durations

Reimplemented from csl::Envelope.

void RandEnvelope::nextBuffer	(	Buffer &	outputBuffer,
		unsigned	outBufNum
	)			throw (CException) [virtual]

scale durations

The main UGen work method

Reimplemented from csl::Envelope.

References DECLARE_SCALABLE_CONTROLS.

void RandEnvelope::initSegment

(

)

[protected]

set up the line segment

References csl::fRandZ(), mAmplitude, mLastVal, mOffset, mSegment, nextSegment(), and csl::LineSegment::setEnd().

Referenced by RandEnvelope().

void RandEnvelope::nextSegment

(

)

[protected]

choose the values for the next line segment

References csl::LineSegment::duration(), csl::LineSegment::end(), csl::fRandZ(), mAmplitude, mCurrentIndex, csl::UnitGenerator::mFrameRate, mFrequency, mLastVal, mOffset, mSegment, mSegmentLength, mStep, mWalk, csl::LineSegment::reset(), csl::LineSegment::setDuration(), csl::LineSegment::setEnd(), and csl::LineSegment::setStart().

Referenced by initSegment().

---

Member Data Documentation

float csl::RandEnvelope::mLastVal [protected]

last line segment ending value (unscaled and unoffset)

Referenced by initSegment(), and nextSegment().

float csl::RandEnvelope::mFrequency [protected]

frequency for picking new values

Referenced by nextSegment(), and setFrequency().

float csl::RandEnvelope::mAmplitude [protected]

scale (+-)

Referenced by initSegment(), nextSegment(), RandEnvelope(), and setAmplitude().

float csl::RandEnvelope::mStep [protected]

max step between values (+-)

Referenced by nextSegment(), RandEnvelope(), and setStep().

float csl::RandEnvelope::mOffset [protected]

DC offset.

Referenced by initSegment(), nextSegment(), and setOffset().

unsigned csl::RandEnvelope::mCurrentIndex [protected]

current index in line segment

Referenced by nextSegment().

unsigned csl::RandEnvelope::mSegmentLength [protected]

line segment's length in frames

Referenced by nextSegment().

bool csl::RandEnvelope::mWalk [protected]

whether to produce random values or a random walk

Referenced by nextSegment(), and setWalk().

LineSegment csl::RandEnvelope::mSegment [protected]

single line segment

Referenced by initSegment(), and nextSegment().

---

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

• CSL/Sources/Envelope.h
• CSL/Sources/Envelope.cpp