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Table Of Contents

Get Row Column (G Dataflow)

Last Modified: June 25, 2019

Extracts a range of pixel values, either a row or column, from an image.

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image in

Reference to the source image.

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index

Row or column number to be extracted from the image.

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row/column?

Boolean value that defines index as a row number or a column number.

True Column number
False Row number
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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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U8 pixel values

Intensity values for the specified row or column of pixels used only when image is an 8-bit image.

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U16 pixel values

Intensity values for the specified row or column of pixels used only when image is an unsigned 16-bit image.

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I16 pixel values

Intensity values for the specified row or column of pixels used only when image is a signed 16-bit image.

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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.
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SGL pixel values

Intensity values for the specified row or column of pixels used only when image is a 32-bit floating-point image.

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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