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Set Calibration Axis (Set Calibration Axis - Point) (G Dataflow)

Last Modified: June 25, 2019

Assigns coordinate system information to a calibration template image.

Use this instance when the image is calibrated with a perspective, distortion model, or microplanes, and the origin of the calibration axis is within the image. This method is recommended over setting the axis using an angle because it is usually more accurate to specify a point on the X-axis than the angle of the calibration axis, especially if the image is distorted.

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calibrated image in

Reference to the template image to use for calibrating your system.

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calibration axis info

Input that defines a reference coordinate system for the real-world coordinates.

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origin pixel

Origin of the reference coordinate system, expressed in pixel units.

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x axis pixel

Pixel on the positive side of the X-axis. The angle between the origin pixel and the x axis pixel defines the angle of the calibration axis.

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x

X-coordinate of the point.

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y

Y-coordinate of the point.

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axis reference

Direction of the coordinate system.

The axis reference can be direct or indirect.

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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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calibrated image out

Reference to the output 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.

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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