The Analyze CHOP looks at the values of all the values of a channel, and outputs a single-number result into the output. The output is one sample long. It can analyze for maximum, average, peaks and other aspects of a channel.
Parameters - Analyze Page
function - ⊞ - This menu determines the function applied to the channel.
average- The average of the channel.
maximum- The maximum value of the channel.
minimum- The minimum value of the channel.
- Index of Maximum
- Index of Minimum
sum- The sum of all the samples in the channel.
- RMS Power
rmspower- The RMS (root-mean-square) of the channel.
- Value of First Peak
firstpeakvalue- The value of the first peak in the channel.
- Index of First Peak
firstpeakindex- The index of the first peak in the channel. The index of the first sample is 0.
- Value of Last Peak
- Index of Last Peak
- Value of Highest Peak
highestpeakvalue- The value of the highest peak in the channel.
- Index of Highest Peak
highestpeakindex- The index of the highest peak in the channel. If multiple samples have the same highest peak value, it returns the index of the last peak sample.
- Value of Lowest Peak
lowestpeakvalue- The value of the lowest peak in the channel.
- Index of Lowest Peak
lowestpeakindex- The index of the lowest peak in the channel. If multiple samples have the same lowest peak value, it returns the index of the last peak sample.
- Total Peaks
totalpeaks- The total number of peaks in the channel.
Allow Start Peaks
allowstart - If the values of the first 2 samples are v0 and v1, if v0 > v1, count it as a peak. The default is to never count the first sample as a peak.
Allow End Peaks
allowend - If the values of the last 2 samples are vn and vm, if vm > vn, count it as a peak. The default is to never count the last sample as a peak.
No Peak Value
nopeakvalue - When no peaks are found, make this number (default is
-1) the result that is output. When the Function is set to Peak Index or Peak Value, it is a way to detect that no peaks were found.
Analyze Valleys vs Peaks
valleys - Analyze instead for the First Valley, Highest Valley, and Lowest Valley, when the corresponding Function menu options are chosen.
Parameters - Common Page
timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.
scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.
Sample Rate Match
srselect - ⊞ - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.
- Resample At First Input's Rate
first- Use rate of first input to resample others.
- Resample At Maximum Rate
max- Resample to the highest sample rate.
- Resample At Minimum Rate
min- Resample to the lowest sample rate.
- Error If Rates Differ
err- Doesn't accept conflicting sample rates.
exportmethod - ⊞ - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.
- DAT Table by Index
datindex- Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
- DAT Table by Name
datname- Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
- Channel Name is Path:Parameter
autoname- The channel is the full destination of where to export to, such has
autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.
exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).
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An which operate on (a series of numbers) which are used for animation, audio, mathematics, simulation, logic, UI construction, and many other applications.
A Time Slice is the time from the last cook frame to the current cook frame. In CHOPs it is the set of short channels that only contain the CHOP channels' samples between the last and the current cook frame.
A parameter in most CHOPs that restricts which channels of that CHOP will be affected. Normally all channels of a CHOP are affected by the operator.
samples-per-second of a CHOP. Each CHOP in your network has a sample rate, whether it is used or not. The overall timeline has a "frame rate", which is the number of animation frames per second, generally your monitor display frequency.
Exporting is the connection of CHOP channels to parameters of operators. The output of each exporting CHOP is one or more channels, active only while the is on. The current value of a channel can be exported to a parameter of any operator, overriding that parameter's value. See .
An that manipulates text strings: multi-line text or tables. Multi-line text is often a command , but can be any multi-line text. are rows and columns of cells, each containing a text string.
The location of an operator within the TouchDesigner environment, for example,
/geo1/torus1, a node called
torus1 in a component called
geo1. The path
/ is called . To refer instead to a filesystem folder, directory, disk file or
http: address, see .
Parameters in TouchDesigner are an operator's settings (numbers, menus, flags, strings, paths) which the user can alter. Parameters for any operator can be opened by right-clicking on the operator and selecting "Parameters..." A currently selected operator's parameters can be viewed in a by pressing the keyboard shortcut 'p'.
TouchDesigner is a hierarchy of components. "root" is the top-most network in the hierarchy. The is simply
/. A typical path is