Description
Return mural register-height fraction and target-height gap.
Artwork measurements distinguish physical dimensions, projected regions and scale conventions. Length, area and volume change with different powers of a scale, while frame overlaps and crop geometry depend on which boundaries were measured. A numerical fit does not identify an artwork or establish its historical interpretation.
Return mural register-height fraction and target-height gap.
When to use this tool
Use Mural Register Height Proportion when checking the stated artwork dimension, crop, frame or scale relation.
How to use the tool and how it works
- Enter registerHeight, muralHeight, targetFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read actualFraction, heightGap. Use the output convention below.
Return mural register-height fraction and target-height gap. Require positive muralHeight, bounded registerHeight and targetFraction in [0,1]; actualFraction = register/mural, gap = register-targetFraction*mural.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| registerHeight | Register Height | Required. Finite number; minimum 0. |
| muralHeight | Mural Height | Required. Finite number; strictly above 0. |
| targetFraction | Target Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| actualFraction | Actual Fraction | Required. Finite number. |
| heightGap | Height Gap | Required. Finite number. |
{
"input": {
"registerHeight": 2,
"muralHeight": 8,
"targetFraction": 0.25
},
"output": {
"actualFraction": 0.25,
"heightGap": 0
}
}Limitations and assumptions
- The target is supplied; no artistic proportion rule, actual mural layout or interpretation is established.
- 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
Inspect the original object, measured boundaries and appropriate complete geometry or catalog record for physical or historical conclusions.
References
Similar or alternative tools
- Painted Panel Join Width Fraction
Return panel join-width total and share.
- Painting Canvas Aspect Reframing Gap
Return maximum centered aspect-compatible crop dimensions and retained area.