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Resamples an input waveform according to the user-defined values for t0 and dt. The data type you wire to the waveform in input determines the polymorphic instance to use. Details  Example

Use the pull-down menu to select an instance of this VI.

Select an instanceResample Waveform (continuous)Resample N Waveforms (continuous)

Resample Waveform (continuous)

	reset resets the phase to the phase control value and the time stamp to zero. The default is FALSE.
	waveform in is a waveform to align.
	dt is the user-defined sampling interval for resampled waveform out.
	t0 is the user-defined time stamp value for resampled waveform out.
	interpolation mode specifies the resampling algorithm used for the resampling. 0 Coerce—Specifies that each output sample is set equal to the input sample value that is closest to it in time. 1 Linear—(Default) Specifies that each output sample value is a linear interpolation between the two input samples that are closest to it in time. 2 Spline—Specifies that this VI uses the spline interpolation algorithm to compute the resampled values. 3 FIR filter—Specifies that this VI uses a finite impulse response (FIR) filtering algorithm to compute the resampled values.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	FIR filter specifications specifies the minimum values this VI needs to specify the FIR filter. alias rejection (dB) specifies the minimum attenuation level of signal components aliased after any resampling operation. The default is 120. normalized bandwidth specifies the fraction of the new sampling rate that is not attenuated. The default is 0.4536.
	resampled waveform out contains the resampled waveform.
	next t0 is the timestamp of the next resampled waveform out, if reset is FALSE
	used t0 returns the actual time stamp of resampled waveform out.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	t0 adjusted warning returns TRUE if used t0 does not equal t0.

Resample N Waveforms (continuous)

Resamples waveforms in according to the user-defined t0 and dt values.

	reset resets the phase to the phase control value and the time stamp to zero. The default is FALSE.
	waveforms in is an array of waveforms to align.
	dt is the user-defined sampling interval for resampled waveforms out.
	t0 is the user-defined time stamp value for resampled waveforms out.
	interpolation mode specifies the resampling algorithm used for the resampling. 0 Coerce—Specifies that each output sample is set equal to the input sample value that is closest to it in time. 1 Linear—(Default) Specifies that each output sample value is a linear interpolation between the two input samples that are closest to it in time. 2 Spline—Specifies that this VI uses the spline interpolation algorithm to compute the resampled values. 3 FIR filter—Specifies that this VI uses a finite impulse response (FIR) filtering algorithm to compute the resampled values.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	FIR filter specifications specifies the minimum values this VI needs to specify the FIR filter. alias rejection (dB) specifies the minimum attenuation level of signal components aliased after any resampling operation. The default is 120. normalized bandwidth specifies the fraction of the new sampling rate that is not attenuated. The default is 0.4536.
	resampled waveforms out returns an array containing the resampled waveforms.
	next t0's is the timestamp of the next resampled waveform out, if reset is FALSE.
	used t0's returns the array of actual time stamps for resampled waveforms out.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	t0 adjusted warnings returns TRUE in each element of the array where the corresponding used t0's element does not equal t0.

Resample Waveforms (continuous) Details

If t0 is less than the actual t0 value of the input waveform, that is the time stamp of the first input sample, the VI coerces t0 to the first value greater than the actual t0 that fulfills the following equation.

used t0 – t0 = n*dt

where n is an integer.

Example

Refer to the Resampling a Waveform (continuous) VI in the labview\examples\measure\resample_align_xmpl.llb for an example of using the Resample Waveforms (continuous) VI.