Hardware manual

Impact Reference Guide Camera
2-31 Datalogic Automation Inc.
To calibrate from polygon points
1. Select From Polygon Points from the Calibrate drop-down.
2. A polygon ROI is placed on the image in the image window. Select the polygon and move it so Point 1
is centered over one of the calibration points.
3. Select and move each of the other polygon vertices to align them with the desired calibration points.
The Polygon Points values are automatically updated in the Point Settings table.
Note: To add a polygon point, move the cursor to the desired point over the line. When the cursor
changes to the Add Edit point shape, click and drag the new point. To delete a polygon point, click and
drag the desired point to another polygon point. The polygon must have at least six points, each with a
corresponding Real World point. The dots must be a minimum of twenty pixels in diameter spaced
twenty pixels apart. To reset all the polygon points to their default position and clear the Real World
point values, click the Reset Polygon button.
4. When all the polygon points are placed, enter the "real-world" measured locations that correspond to
each Polygon Point.The measurement units are not necessary.
For example, in the image below, Real World Point 1 (0,0) corresponds to Polygon Point 1
(38.545,200.206); Point 2, in real-world units, is 2, -2 (+2X and -2Y from Point 1); Point 3 is 6, -2
(+6X and -2Y); Point 4 is 8, 0; Point 5 is 6, 2; and Point 6 is 2, 2.
5. Click the Calibrate button.
Point Settings
• Polygon Points: The X and Y coordinates of each Polygon Point is indicated. To reset the polygon to
its default position, and the Real World Points values to zero, click the Reset Polygon button.
Add Edit
Point
Calibrate From Polygon Points Image
Polygon
Point 1
Polygon
Point 2
Polygon
Point 4
Polygon
Point 3
X value
increases
Y value
increases
Polygon
Point 5
Polygon
Point 6
Image
Window