Line-Circle Distance

## Line-Circle Distance

Measure the distance from a line to the center of a circle.

## Parameter Configuration Description

### Main Interface Parameters
![](/media/202602/2026-02-12_110330_8635560.713214592782297.png)

【**Standard Value**】 Set the required distance value. If the detected distance is not within the standard value range, the run result will display distance judgment failure.

【**Compensation Value**】 The value to compensate on the detected distance result.

【**Upper/Lower Deviation**】 Set the allowable upper and lower range of the difference between the detected distance and the standard value.
    Formula: Measured Value + Compensation Value = [Standard Value + Lower Deviation, Standard Value + Upper Deviation]

【**Size Conversion**】
    Scale: Manually input a value to convert image coordinates to real-world coordinates.
    Calibration: Connect a calibration data source to convert image coordinates to real-world coordinates.
    
## Output Description
  Run Result: Outputs true if successful, false if failed.
  Center Distance: The distance from the input point to the center of the input circle.
  Deviation Value: The difference between the Distance Value and the Standard Value.
  Extreme Point 1: Intersection point 1 of the line connecting the point and the circle center with the input circle.
  Extreme Point 2: Intersection point 2 of the line connecting the point and the circle center with the input circle.
  Distance Segment: The distance segment from the input point to the center of the input circle.
  Segment Angle: The angle of the distance segment from the input point to the center of the input circle.
![](/media/202602/2026-02-12_110640_0141850.5554745633991129.png)

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Click here to jump to the corresponding Chinese manual page: [Line-Circle Distance](/doc/117)