Banner PresencePLUS Pro COLOR—PROII Camera - Manual (Page 278)

• When defining the angle between two lines, the Measure tool takes into account the order of the tool inputs. The sign
of the angle from Line 1 to Line 2, for example, differs from the sign of the angle from Line 2 to Line 1. The tool
detects the intersection point of two lines. Even if they intersect outside the viewable FOV (field of view), the resulting
angle between the 2 lines is correct, and the intersection point created can be passed into other Measure tools for
distance or other measurements. Note that the X or Y coordinates of the point in this case may be negative.
How the Tool Measures Two Points
The inputs to the Measure tool for measuring two points are any two points that vision tools generate. These can be
an Edge transition, a Blob centroid, or a Geo pattern. The results include the total distance between the points and the
x- and y-component distances. In addition to finding these distance values, the Measure tool also calculates the line
between the two endpoints. The software reports the angle between this line and the camera’s horizontal plane, as well
as the coordinates for the line’s midpoint.
As shown below, the Measure tool window shows the settings and results of the inspection. In the inspection image,
the two points Edge_1 and Edge_2 define the dashed red line that runs from top left to bottom right. The actual measured
distance between the points is the solid line labeled MT_1, and the solid red triangle is the line’s midpoint. MT_1’s
direction is the direction of the measurement operation: from Edge_1 to Edge_2.
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2/2010 PresencePLUS Software Tools