Annulus

Creates a fixtured Annulus structure.

Annulus Inputs

Syntax: Annulus(Fixture.Row,Fixture.Column,Fixture.Theta,Annulus.X,Annulus.Y,Annulus.Inner Radius,Annulus.Outer Radius,Show)

Note: The Fixture and Annulus parameters must be defined within the bounds of the image; otherwise, the function will return #ERR.

Parameter

Description

Fixture

Specifies the image coordinate system in which the annulus is defined.

Row	The row offset.
Column	The column offset.
Theta	The orientation.

Annulus

Specifies the size and position of the annulus.

X	The x-offset, in fixture coordinates.
Y	The y-offset, in fixture coordinates.
Inner Radius	The inner radius (1 to 16777216; default = 40 ).
Outer Radius	The outer radius (2 to 16777216; default = 100 ).

Show

Specifies the display mode for the annulus graphic overlay on the image.

0 = hide all	The annulus structure graphic will not be displayed unless the cell containing the Annulus function is highlighted in the spreadsheet.
2 = input graphics only	The annulus structure graphic will be displayed at all times.

Annulus Outputs

Returns	An Annulus data structure, or #ERR if any of the input parameters are invalid.
Results	When Annulus is initially inserted into a cell, a result table is created in the spreadsheet.

Annulus Vision Data Access Functions

The following Vision Data Access functions are automatically inserted into the spreadsheet to create the result table. For more information, see Structures.

Row	GetRow(Annulus)	The row offset of the center of the annulus, in image coordinates.
Col	GetCol(Annulus)	The column offset of the center of the annulus, in image coordinates.
Inner Radius	GetRadius(Annulus, 0)	The inner radius of the indexed annulus.
Outer Radius	GetRadius(Annulus, 1)	The outer radius of the indexed annulus.