updown~
Trapezoidal Function Generator With Constant Attack and Release
Description
The updown~ object is driven by a ramp from 0 - 1 or 1 - 0. It generates a trapezoidal function where the attack and release times are independent of the speed of the input ramp, unlike trapezoid~ where start and end times are specified as a proportion of the total input ramp cycle and thus will vary with the speed of the input ramp.
Note that the up phase of the updown~ object's output occurs after the reset of a phasor or a zero-to-non-zero transition, whether the input ramp moves up or down. The down phase of the output occurs in the time before a reset (or the end of the ramp) is expected to occur.
Arguments
None.
Attributes
down[float]
Sets the time of the output ramp descending from the maximum value to 0 in milliseconds
level[float]: 1.
Sets the maximum value of the trapezoidal function
up[float]
Sets the time of the output ramp ascending from 0 the maximum value in milliseconds
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
signal
The updown~ object produces a trapezoidal output in response to a signal ramp from 0 - 1 or 1 - 0.
See Also
Name | Description |
---|---|
phasor~ | Generate sawtooth signals |
trapezoid~ | Trapezoidal wavetable |
kink~ | Distort a sawtooth waveform |
line~ | Linear signal ramp generator |
subdiv~ | Integer Subdivision of a Phasor |
zigzag~ | Linked list function editor |