Panasonic MICRO-IMAGECHECKER AX40 User Manual page 103

Feature Data
Projection Width The width of the rectangle circumscribed around an object.
Perimeter:
Length of border around the object. If an object is circle in shape, its perimeter refers to
"circumference.
Angle of
The angle that is formed when the principal axis of an object and x axis are intersected.
Principal Axis
The detected angle of principal axis differs depending on the slope direction of the object.
The angle of the principal axis rising from left to right is negative as the figure shown
below. The angle of the principal axis falling from left to right is positive.
• If an object is rectangle, circle or triangle, the angle of the principal axis cannot be calculated.
(Calculation of the angle may be infrequently performed, but you cannot use the data due to
its instability. In this case, the angle of the principal axis is output "180".)
• The detected angle of principal axis is +/- 90°. Note that the detected angle of the principal
axis, as the figures A and B are shown, are the same regardless of different rotation angle of
the object.
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