Edge Reeding Ridge Count Tool

Inventory actual distinct ridge observations and angular gaps, full-edge count only with caller complete survey evidence; incomplete count/closing gap unavailable −1, no image ridge detection or issue authentication.

Description

A ridge survey records angular positions around an edge.

A ridge survey records angular positions around an edge. The closing interval is meaningful only for a declared complete circumference.^[1]

Enter nonempty strictly increasing finite angles in [0,360) and full-survey flag. Return observed count/adjacent gaps; full count and closing gap are −1 when coverage is incomplete.

When to use Edge Reeding Ridge Count Tool

Use Edge Reeding Ridge Count Tool when you need to evaluate the supplied records under the calculation and evidence rules below. No image detection, mint standard or authenticity inference is provided.

Prepare the measured coin evidence or explicitly verified catalog and prices requested. Keep measurement conditions, units and currency consistent.

How to use Edge Reeding Ridge Count Tool and understand its results

Prepare the measured coin evidence or explicitly verified catalog and prices requested. Keep measurement conditions, units and currency consistent.
Enter observedDistinctRidgeAnglesDegrees, callerEntireCircumferenceSurveyed using the field table and calculation rules, then run the tool.
Read observedDistinctRidgeCount, verifiedFullCircumferenceRidgeCount, observedConsecutiveRidgeAngularGapsDegrees, fullCircumferenceClosingGapDegrees. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
observedDistinctRidgeAnglesDegrees	Observed distinct ridge angles degrees	list of number	Required
callerEntireCircumferenceSurveyed	Caller entire circumference surveyed	boolean	Required

Enter nonempty strictly increasing finite angles in [0,360) and full-survey flag. Return observed count/adjacent gaps; full count and closing gap are −1 when coverage is incomplete.

adjacentGap[i]=angle[i+1]−angle[i]; closing=360−last+first

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
observedDistinctRidgeCount	Observed distinct ridge count	number
verifiedFullCircumferenceRidgeCount	Verified full circumference ridge count	number
observedConsecutiveRidgeAngularGapsDegrees	Observed consecutive ridge angular gaps degrees	list of number
fullCircumferenceClosingGapDegrees	Full circumference closing gap degrees	number

json

{
  "input": {
    "observedDistinctRidgeAnglesDegrees": [
      0,
      90,
      180,
      270
    ],
    "callerEntireCircumferenceSurveyed": true
  },
  "output": {
    "observedDistinctRidgeCount": 4,
    "verifiedFullCircumferenceRidgeCount": 4,
    "observedConsecutiveRidgeAngularGapsDegrees": [
      90,
      90,
      90
    ],
    "fullCircumferenceClosingGapDegrees": 90
  }
}

Limitations and assumptions

No image detection, mint standard or authenticity inference is provided.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Year Set Birthday Coin Finder: Birthday-year sets depend on a particular catalog and stock record. A dated coin need not have been issued in every country or remain available. For a complementary task, use Chinese Cash Coin Read Order Top Bottom Right Left Rule: An inscription transcription needs an explicit reading order and a visible distinction between known and unreadable glyphs.

References

Edge Reeding Ridge Count Tool — tool.io

Similar or alternative tools

Year Set Birthday Coin Finder
Birthday-year sets depend on a particular catalog and stock record. A dated coin need not have been issued in every country or remain available.
Chinese Cash Coin Read Order Top Bottom Right Left Rule
An inscription transcription needs an explicit reading order and a visible distinction between known and unreadable glyphs.