trapezoid~
Trapezoidal wavetable
Description
trapezoid~ is a trapezoidal wavetable with signal inputs to change ramp up/down phase position. The default lo/hi points are 0. and 1., but may be changed using the lo/hi messages.
Arguments
ramp-up[float]
optional
A floating-point value can be used to specify the ramp up value. The arguments
produce a ramp waveform, and produces a triangle waveform.
ramp-down[float]
optional
A floating-point value can be used to specify the ramp down value. The arguments
produce a ramp waveform, and produces a triangle waveform.Attributes
hi[float]
Sets the maximum value of trapezoid~ for signal output. The default value is
lo[float]
Sets the minimum value of trapezoid~ for signal output. The default value is
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]: 0
Adds or removes the object from the patcher's background layer.
adds the object to the background layer, 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'
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]: 0
Toggles whether an object ignores mouse clicks in a locked patcher.
jspainterfile[symbol]
JS Painter File
patching_rect[4 floats]: 0. 0. 100. 0.
Sets the position and size of the object in the patcher window.
position[2 floats]
write-only
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]: 0
Sets whether an object belongs to the patcher's presentation.
presentation_rect[4 floats]: 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]
write-only
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]
write-only
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[4 floats]
Sets the color for the object's text in RGBA format.
textjustification[int]
Sets the justification for the object's text.
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
float
In left inlet: Any float or signal or an input signal progressing from 0 to 1 is used to scan the trapezoid~ object's wavetable. The output of a phasor~ or some other audio signal can be used to control trapezoid~ as an oscillator, treating the contents of the wavetable as a repeating waveform.
In middle inlet: The ramp up portion of the trapezoidal waveform, specified as a fraction of a cycle between 0 and 1.0. The default is .1.
In right inlet: The ramp up portion of the trapezoidal waveform, specified as a fraction of a cycle between 0 and 1.0. The default is 0.9.
- trapezoidal-control
[float]
signal
In left inlet: Any float or signal or an input signal progressing from 0 to 1 is used to scan the trapezoid~ object's wavetable. The output of a phasor~ or some other audio signal can be used to control trapezoid~ as an oscillator, treating the contents of the wavetable as a repeating waveform.
In middle inlet: The ramp up portion of the trapezoidal waveform, specified as a fraction of a cycle between 0 and 1.0. The default is .1.
In right inlet: The ramp up portion of the trapezoidal waveform, specified as a fraction of a cycle between 0 and 1.0. The default is 0.9.
Output
signal
A signal which corresponds to the value referenced by the trapezoid~ object's input signal. If the output of a phasor~ or some other audio signal is used to scan the trapezoid~ object, the output will be a periodic waveform.
See Also
Name | Description |
---|---|
buffer~ | Store audio samples |
cos~ | Signal cosine function (0-1 range) |
phasor~ | Generate sawtooth signals |
updown~ | Trapezoidal Function Generator With Constant Attack and Release |
wave~ | Variable size wavetable |