Description
Validate bounded integer centralYear and nonnegative earlier/later tolerances.
An artwork record can distinguish an edition, proof, accession, attribution, or display note. These labels preserve a stated catalog convention; they do not authenticate an object or establish ownership.
Validate bounded integer centralYear and nonnegative earlier/later tolerances.
When to use this tool
Use Catalogue Circa Date Interval Field when you need to format a supplied art-record detail consistently while retaining its source and qualifiers.
How to use the tool and how it works
- Enter centralYear, earlierToleranceYears, laterToleranceYears. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read earliestYear, latestYear, label. Use the output convention below.
Validate bounded integer centralYear and nonnegative earlier/later tolerances. Subtract and add them for earliestYear and latestYear and label circa centralYear.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| centralYear | Central Year | Required. Safe integer; minimum -100000; maximum 100000. |
| earlierToleranceYears | Earlier Tolerance Years | Required. Safe integer; minimum 0; maximum 100000. |
| laterToleranceYears | Later Tolerance Years | Required. Safe integer; minimum 0; maximum 100000. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| earliestYear | Earliest Year | Required. Safe integer. |
| latestYear | Latest Year | Required. Safe integer. |
| label | Formatted label for the supplied components under the convention above. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"centralYear": 1900,
"earlierToleranceYears": 5,
"laterToleranceYears": 10
},
"output": {
"earliestYear": 1895,
"latestYear": 1910,
"label": "circa 1900"
}
}Limitations and assumptions
- Tolerances are supplied and can be asymmetric; no historical dating, confidence level, calendar treatment, or standard meaning of circa is inferred.
- 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
Compare the resulting label with the collection catalog and the institution's documentation conventions.
References
Similar or alternative tools
- Source Date Not Before Not After Pair
Validate ordered bounded integer years.
- Historical Date Circa Marker
only when approximate is true.