Description
Return paired landmark-frame length ratios and maximum relative scale gap.
Anatomical diagrams and idealized models require explicit coordinate origins, axes, dimensions and indexing conventions. Translations, vector projections and simple shape formulas describe supplied geometry rather than identifying actual anatomy or determining a medical finding. A scaled drawing or ideal branching tree needs separate anatomical verification.
Return paired landmark-frame length ratios and maximum relative scale gap.
When to use this tool
Use Landmark Frame Scale Gap when checking the stated diagram, coordinate, vector or ideal-shape convention.
How to use the tool and how it works
- Enter firstAxisLengths, secondAxisLengths. Follow any array-alignment requirements below. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read axisRatios, maximumRelativeScaleGap. Use the output convention below.
Return paired landmark-frame length ratios and maximum relative scale gap. Require exactly three positive lengths per frame; ratios = second/first, maximumGap = max(abs(ratio-1)).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstAxisLengths | First Axis Lengths | Required. Array of finite number; maximum items 256. |
| secondAxisLengths | Second Axis Lengths | Required. Array of finite number; maximum items 256. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| axisRatios | Axis Ratios | Required. Array of finite number; maximum items 256. |
| maximumRelativeScaleGap | Maximum Relative Scale Gap | Required. Finite number. |
{
"input": {
"firstAxisLengths": [
1,
2,
4
],
"secondAxisLengths": [
2,
2,
2
]
},
"output": {
"axisRatios": [
2,
1,
0.5
],
"maximumRelativeScaleGap": 1
}
}Limitations and assumptions
- This compares supplied axis lengths without fitting registration, rotation, actual calibration or clinical suitability.
- 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. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified anatomical measurements and an appropriate complete spatial model; consult qualified health professionals for actual medical interpretation.
References
Similar or alternative tools
- Landmark Coordinate Scale Factor
Return an origin-subtracted scaled coordinate with optional axis reversal.
- Anatomical Angle Three Landmark Term
Return angle at a supplied three-landmark vertex.