Lyre System Row Width Opening
Evaluate symmetric Lyre curtain center geometry and declared horizontal foliage thickness before reporting clear top gap; not trellis engineering, arbitrary row width or canopy illumination guarantee.
Description
A symmetric Lyre system spreads curtains outward from their bases.
A symmetric Lyre system spreads curtains outward from their bases. Curtain-center spacing differs from the clear opening between foliage.
Evaluate symmetric Lyre curtain center geometry and declared horizontal foliage thickness before reporting clear top gap; not trellis engineering, arbitrary row width or canopy illumination guarantee.
When to use Lyre System Row Width Opening
Use this tool to evaluate symmetric Lyre curtain center geometry and declared horizontal foliage thickness before reporting clear top gap; not trellis engineering, arbitrary row width or canopy illumination guarantee.
Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
How to use Lyre System Row Width Opening and understand its results
- Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
- Enter baseCurtainCenterSpacingM, curtainVerticalHeightM, outwardLeanFromVerticalDegrees, horizontalCurtainThicknessM using the field table and calculation rules, then run the tool.
- Read topCurtainCenterSpacingM, modeledClearTopOpeningM. 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 |
|---|---|---|---|
| baseCurtainCenterSpacingM | Base curtain center spacing m | number | Required |
| curtainVerticalHeightM | Curtain vertical height m | number | Required |
| outwardLeanFromVerticalDegrees | Outward lean from vertical degrees | number | Required |
| horizontalCurtainThicknessM | Horizontal curtain thickness m | number | Required |
Use nonnegative dimensions and lean in [0,90) degrees. Subtract horizontal curtain thickness from top-center spacing and require the resulting opening nonnegative.1
top center spacing = base spacing + 2 × height × tan(outward lean) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| topCurtainCenterSpacingM | Top curtain center spacing m | number |
| modeledClearTopOpeningM | Modeled clear top opening m | number |
{
"input": {
"baseCurtainCenterSpacingM": 1,
"curtainVerticalHeightM": 1,
"outwardLeanFromVerticalDegrees": 45,
"horizontalCurtainThicknessM": 0.2
},
"output": {
"topCurtainCenterSpacingM": 3,
"modeledClearTopOpeningM": 2.8
}
}Limitations and assumptions
Ideal geometry does not establish trellis capacity or canopy illumination.
Numbers and computed results must be finite; overflow produces an error. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Row Shadow Width North South: Project ideal vertical north–south row canopy shadow onto east–west row normal using supplied sun angles/dimensions; no coordinates, terrain, irradiance loss, vine suitability or geodesy. For a complementary task, use Pergola Beam Height Clearance: Audit measured pergola underside minus hanging canopy against caller passage-envelope height, retaining signed margins; no load-bearing, accessibility or worker/equipment safety certification.
References
-
Lyre System Row Width Opening — tool.io
Similar or alternative tools
- Row Shadow Width North South
Project ideal vertical north–south row canopy shadow onto east–west row normal using supplied sun angles/dimensions; no coordinates, terrain, irradiance loss, vine suitability or geodesy.
- Pergola Beam Height Clearance
Audit measured pergola underside minus hanging canopy against caller passage-envelope height, retaining signed margins; no load-bearing, accessibility or worker/equipment safety certification.