Table Of Contents

Interpolate 1D (G Dataflow)

Last Modified: October 26, 2017

Resamples an array of pixels from an image using multiple interpolation functions.

Use this node to perform subpixel analysis of pixel profiles in the image.

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image in

Reference to the source image.

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coordinate points

Array consisting of the spatial coordinates of pixels in the image.

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subpixel information

Cluster containing the following parameters for subpixel analysis:

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interpolation type

Method used to perform the interpolation.

Name Value Description
bi-linear 0

Uses linear interpolation in both the x- and y-directions to compute the pixel location

quadratic 1

Uses the quadratic formula to compute the pixel location

cubic spline 2

Uses cubic splines to compute the pixel location

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subpixel accuracy

Method used to perform the interpolation.

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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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image out

Reference to the source image.

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interpolated array

Array that contains the resampled pixel data.

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array size

Size of the interpolated array.

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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: Not supported

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


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