jit.catch~
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jit.catch~

Transform signal data into matrices

Description

Transforms MSP signals into a stream of jitter matrices.

Examples

Arguments

channels []

The number of input signals. An inlet will be created for each channel and the output matrices will contain the data for each channel on a separate plane.

Attributes

downsample [int]

A downsampling factor (default=1). If downsampling value is set to n, each group of n successive samples are averaged.

framesize [int]

In some modes, the width of the output matrix. (default=320)

mode [int]

Four different modes are possible: in mode 0, all data since the last output is output in a one-dimensional matrix. In mode 1 the amount of buffered data that fits into a multiple of the framesize is output in two dimensions; data not output will be saved for the next time. In these first two modes, every sample collected should be output once and only once. In mode 2 a framesize of the most recent data is output. Mode 3 causes jit.catch~ to behave like an oscilloscope, triggering on channel trigchan when the signal crosses triglevel in the direction trigdir. If the threshold has not been passed for the duration of the entire internal data buffer (100 ms), jit.catch~ reverts temporarily to mode 2 behavior and outputs the most recent data until the threshold is crossed again.

trigdir [int]

The direction to use to identify crosses in the trigger point: 0 is upwards, and 1 is downwards. (default=0)

trigchan [int]

In mode 3, the channel to use for trigger points (default=0)

trigthresh [float]

The signal level at which to trigger a redraw in mode 3 (default=0.0)

Common Box Attributes

annotation [symbol]

Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.

background [int] (default: 0)

Adds or removes the object from the patcher's background layer. background 1 adds the object to the background layer, background 0 removes it. Objects in the background layer are shown behind all objects in the default foreground layer.

color [4 floats]

Sets the color for the object box outline.

fontface [int]

Sets the type style used by the object. The options are:

plain
bold
italic
bold italic

Possible values:

0 = 'regular'
1 = 'bold'
2 = 'italic'
3 = 'bold italic'

fontname [symbol]

Sets the object's font.

fontsize [float]

Sets the object's font size (in points).

Possible values:

'8'
'9'
'10'
'11'
'12'
'13'
'14'
'16'
'18'
'20'
'24'
'30'
'36'
'48'
'64'
'72'

hidden [int] (default: 0)

Toggles whether an object is hidden when the patcher is locked.

hint [symbol]

Sets the text that will be displayed in as a pop-up hint when the user moves the mouse over the object in a locked patcher.

ignoreclick [int] (default: 0)

Toggles whether an object ignores mouse clicks in a locked patcher.

patching_rect [4 floats] (default: 0. 0. 100. 0.)

Sets the position and size of the object in the patcher window.

position [2 floats]

g/s(set)

Sets the object's x and y position in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its size unchanged.

presentation [int] (default: 0)

Sets whether an object belongs to the patcher's presentation.

presentation_rect [4 floats] (default: 0. 0. 0. 0.)

Sets the x and y position and width and height of the object in the patcher's presentation, leaving its patching position unchanged.

rect [4 floats]

g/s(set)

Sets the x and y position and width and height of the object in both patching and presentation modes (if the object belongs to its patcher's presentation).

size [2 floats]

g/s(set)

Sets the object's width and height in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its position unchanged.

textcolor [float]

Sets the color for the object's text in RGBA format.

textjustification [int]

Text Justification

Possible values:

0 = 'left'
1 = 'center'
2 = 'right'

varname [symbol]

Sets the patcher's scripting name, which can be used to address the object by name in pattr, scripting messages to thispatcher, and the js object.

Messages

bang

Receiving a bang may trigger a matrix to be output, depending on the mode and the amount of signal data that has been received since the last bang.

bufsize

The word bufsize, followed by a floating-point number, sets the size of the buffer to be sampled.

signal

Signal data received in any inlet of a jit.catch~ object will be converted to a stream of Jitter matrices and sent out the object's outlet.

See Also

Name Description
jit.buffer~ Access an MSP buffer~ in matrix form
jit.graph Perform floating-point data visualization
jit.gl.graph Graph floats into 3D space
jit.peek~ Read matrix data as an audio signal
jit.poke~ Write an audio signal into a matrix
jit.release~ Transforms matrix data into signals
peek~ Read and write sample values
poke~ Write sample values to a buffer by index
Tutorial 48: Frames of MSP signals Tutorial 48: Frames of MSP signals