Rockwell Automation 5370-CVIM2 Module - Manual (Page 279)

5 Chapter Chapter 7
Inspection Tools
7–41
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Holes –– This field determines whether to Include or Exclude “holes” in
contours (for example, white holes in black features) in calculating the
area, X and Y centers, inertia, circumference, and theta of the contours.
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Max Results –– This field enables you to enter the maximum number of
measurement results that can be stored in memory. The default setting is
10. The range limits are 0 and 100.
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Nearest Neighbor panel –– This selection panel enables you to activate
the nearest neighbor function and select a direction for the “
Nearest ” and
“ NearestBox ” contour measurement functions.
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Done –– When you pick the button, the system exits back to the
Target panel.
Here are some additional details about the Max Results and Nearest
Neighbor functions:
Max Results function –– The Max Results number, as noted above, limits
the number of measurements whose results values are stored in memory.
Thus, if the contour window recognizes 15 contours as objects, but
Max
Results is set to 10, then only the measurement results for objects 1 through
10 can be stored.
The specific results values that are stored depend on which measurement
functions are active. For example, if the
Area and Height measurement
functions are both active (a “ Y ” symbol alongside), the results data from
these two measurement functions will be stored for all objects up to the Max
Results number.
The utility of the stored results data is that they can be accessed by math tool
formulas and by the communications message editor. For information about
these uses of the results data, refer to the Math Tool section in Chapter 7,
Inspection Tools, and the CVIM2 Communications Reference Manual.
Nearest Neighbor function –– This function identifies the object that is the
“nearest neighbor” to a target object according to user specified direction
criteria, and it returns two values for the distance, in pixels, between the
target object and its “nearest neighbor,” as follows:
1. The “ Near ” value, which is the distance between the centroid of one
object and the centroid of the nearest object, and
2. The “ NearBox ” value, which is the distance between the closest edges
of one object’s bounding box and the nearest object’s bounding box.
These two values are available as “expanded results” in a math tool formula
that references a window tool that is configured for a contour operation.