Description
Return spandrel-height fraction and remaining vision height.
Architectural openings and clearances depend on measured boundaries, projection axes and a caller-supplied comparison criterion. A positive geometric margin is distinct from demonstrating code compliance, safe access or a complete door-swing envelope. Plan lengths and projected dimensions must not be mistaken for full spatial measurements.
Return spandrel-height fraction and remaining vision height.
When to use this tool
Use Curtain Wall Panel Spandrel Share when checking the stated opening, projection or clearance geometry.
How to use the tool and how it works
- Enter panelHeight, spandrelHeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read spandrelFraction, visionHeight. Use the output convention below.
Return spandrel-height fraction and remaining vision height. Require positive panelHeight and spandrelHeight within it; fraction = spandrel/panel, visionHeight = panel-spandrel.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| panelHeight | Panel Height | Required. Finite number; strictly above 0. |
| spandrelHeight | Spandrel Height | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| spandrelFraction | Spandrel Fraction | Required. Finite number. |
| visionHeight | Vision Height | Required. Finite number. |
{
"input": {
"panelHeight": 4,
"spandrelHeight": 1
},
"output": {
"spandrelFraction": 0.25,
"visionHeight": 3
}
}Limitations and assumptions
- This is one height basis, not a whole-facade area ratio, fire barrier or thermal-performance analysis.
- 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 complete measured plans and a qualified architectural/engineering assessment with the applicable requirements for real construction or safety decisions.
References
Similar or alternative tools
- Acoustic Panel Edge Shadow Gap
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- Door Leaf Undercut Area Term
Return ideal door-undercut area.