Precision Pass Guidance Cross Track Gap Tool

Description

Remaining margin to a supplied guidance corridor, not estimation of cross-track error.

Precision-agriculture measurements combine spatial cells, sensor clocks, travel speeds, band signals, and application records. A correction or weighted share is meaningful only when coordinate frames, units, timestamps, and coverage bases agree. Supplied calibration and support flags remain distinct from measurements that establish them.

Remaining margin to a supplied guidance corridor, not estimation of cross-track error.

When to use this tool

Use Precision Pass Guidance Cross Track Gap when you have the stated field, sensor, map, or application records and need this correction or geometric/accounting component.

How to use the tool and how it works

Enter crossTrackError, corridorHalfwidth, uncertainty. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read remainingMargin, insideUnderBound. Inspect insideUnderBound before interpreting the associated values.

For nonnegative corridorHalfwidth and uncertainty return remainingMargin=corridorHalfwidth-abs(crossTrackError)-uncertainty and insideUnderBound when abs(crossTrackError)+uncertainty<=corridorHalfwidth.^[1]

Input field	Meaning and units	Accepted input
crossTrackError	Cross Track Error	Required. Finite number.
corridorHalfwidth	Corridor Halfwidth	Required. Finite number; minimum 0.
uncertainty	Uncertainty	Required. Finite number; minimum 0.

Output field	Interpretation	Returned shape
remainingMargin	Remaining Margin	Required. Finite number.
insideUnderBound	Inside Under Bound	Required. Boolean.

json

{
  "input": {
    "crossTrackError": 2,
    "corridorHalfwidth": 5,
    "uncertainty": 1
  },
  "output": {
    "remainingMargin": 2,
    "insideUnderBound": true
  }
}

Limitations and assumptions

All inputs use one length unit. The uncertainty is a caller-supplied absolute bound, not a fitted confidence interval or a verified guidance safety margin.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.

Alternative or Complementary methods

Verify the measurement calibration, coordinate frame, spatial support, and clock convention before combining this term into a map or control workflow. Use a complete equipment or field model when geometric and operating constraints matter.

References

Calculation and input contract: precision-agriculture/precision-pass-guidance-cross-track-gap — tool.io

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