IMAQ Find Concentric Edge 2 VI

Scan Direction specifies the direction in which the VI searches for edges along the concentric search lines.

Edge Options specifies the parameters used to compute edge gradient information and detect edges.

	Edge Polarity specifies the polarity of the edges to be found. All Edges (0) (Default) Searches for all edges Rising Edges (1) Searches for rising edges Falling Edges (2) Searches for falling edges
	Kernel Size specifies the size of the edge detection kernel. The default is 3.
	Width specifies the number of pixels averaged perpendicular to the search direction to compute the edge profile strength at each point along the search ROI. The default is 3.
	Minimum Edge Strength specifies the minimum edge strength (gradient magnitude) required for a detected edge. The default is 10.
	Interpolation Type specifies the interpolation method used to locate the edge position. Choose from the following options: Zero Order (0) Rounds to the nearest integral edge location Bilinear (1) Uses bilinear interpolation to compute the edge location Bilinear Fixed (4) (Default) Uses the fixed-point computation of bilinear interpolation to determine the edge location
	Data Processing Method is the method used to process the data extracted for edge detection. Average (0) (Default) Averages the data extracted for edge detection Median (1) Takes the median of the data extracted for edge detection

Show Search Area determines whether the search area is overlaid on the image.

Show Search Lines determines whether the search lines used to locate the edges are overlaid on the image.

Show Edges Found determines whether the locations of the edges found are overlaid on the result image.

Show Result determines whether the edge found is overlaid on the result image.

Search Area Color specifies the color to use to overlay the search area.

Search Lines Color specifies the color to use to overlay the search lines.

Edge Locations Color specifies the color to use to overlay the edge locations.

Result Color specifies the color to use to overlay the result.

Overlay Group Name specifies name to give the overlay group.

Global Rectangle contains the coordinates of the bounding rectangle for the circular edge in the image.

Contours are each of the individual shapes that define an ROI.

	ID refers to whether the contour is the external or internal edge of an ROI.
	Type is the shape type of the contour.
	Coordinates indicates the relative position of the contour.

Reference System is a cluster containing the following elements.

	Origin is a point cluster that specifies the origin of the base-reference coordinate system. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Angle (deg) is the angle the base-reference coordinate system makes with the image coordinate system.
	Axis Reference is defined as Direct or Indirect. Refer to Axis Type for more information.

Measurement System is a cluster containing the following elements.

	Origin is a point cluster that specifies the origin of the base-reference coordinate system. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Angle (deg) is the angle the base-reference coordinate system makes with the image coordinate system.
	Axis Reference is defined as Direct or Indirect. Refer to Axis Type for more information.

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. 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. The default is an empty string.

Process determines the type of search. Choose from the following values:

Step Size is the distance between concentric search rings.

Max Pixel Radius specifies the length of the radius within which a point is assumed to be part of the fitted circle.

Line Segment (Pixels) represents the intersection of the line equation and the bounding rectangle of the input points in pixels.

	Point 1 contains coordinates for an intersection point. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Point 2 contains coordinates for an intersection point. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.

Line Segment (Real World) represents the intersection of the line equation and the bounding rectangle of the input points in calibrated units.

	Point 1 contains coordinates for an intersection point. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Point 2 contains coordinates for an intersection point. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.

Angle (Pixel) is the rotation angle of the detected straight edge, in degrees, measured counter-clockwise from the x-axis extending to the right.

Angle (Real World) is the rotation angle of the detected straight edge, in degrees, measured along the search direction from the start axis.

Straightness returns the straightness of the detected edge. The straightness of the detected straight edge is defined as the root mean squared error of the fitted line that represents the detected straight edge.

Average Strength is the average strength (gradient magnitude) of the detected edge.

Average SNR (dB) is the average signal-to-noise ratio along the detected edge.

Reference System is a cluster containing the following elements.

	Origin is a point cluster that specifies the origin of the base-reference coordinate system. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Angle (deg) is the angle the base-reference coordinate system makes with the image coordinate system.
	Axis Reference is defined as Direct or Indirect. Refer to Axis Type for more information.

Measurement System is a cluster containing the following elements.

	Origin is a point cluster that specifies the origin of the base-reference coordinate system. X is the x-coordinate of the center of the circle. Y is the y-coordinate of the center of the circle.
	Angle (deg) is the angle the base-reference coordinate system makes with the image coordinate system.
	Axis Reference is defined as Direct or Indirect. Refer to Axis Type for more information.

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. The default is an empty string.