Table Of Contents

Align Waveforms (Single-shot) (G Dataflow)

Version:
Last Modified: August 28, 2017

Performs single-shot element-wise alignment of waveforms and returns the aligned waveforms.

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exported interval

Timestamp of the waveform outputs.

Name Value Description
common 0 Aligns the start and end times of signals by adding zero values to the beginning of the signal that starts last and to the end of the signal that ends first.
global 1 Aligns the start and end times of signals by using the start time of the signal that starts last and the end time of the signal that ends first.

Default: common

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open interval?

Interval over which the input waveform extends.

True Uses an open interval.
False Uses a closed interval.

Default: True

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waveforms

An array of waveforms to align.

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interpolation mode

Algorithm this nodes uses to perform alignment of waveforms.

Name Value Description
coerce 0 This node sets each output sample value to the input sample value that is closest to it in time.
linear 1 This node sets each output sample value to the linear interpolation between the two input samples that are closest to it in time.
spline 2 This node uses the spline interpolation algorithm to compute the resampled values.
FIR filter 3 This node uses a finite impulse response (FIR) filtering algorithm to compute the resampled values.

Default: linear

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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FIR filter specifications

Minimum values this node needs to specify the FIR filter.

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alias rejection (dB)

Minimum attenuation level of signal components aliased after any resampling operation.

Default: 120

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normalized bandwidth

Fraction of the new sampling rate that is not attenuated.

Default: 0.4536

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interpolation?

A Boolean that specifies whether this node performs interpolation.

True Performs interpolation.
False Does not perform interpolation.

Default: True

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aligned waveforms

Aligned waveforms.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: This product does not support FPGA devices

Web Server: Not supported in VIs that run in a web application


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