Description
Compare spacing with firstReach + secondReach, returning the positive shortfall as gap and the positive excess as overlap.
A site clearance is a signed difference between available space and an object or allowance. A supplied setback and assumed future envelope are separate from actual legal or environmental requirements.
Compare spacing with firstReach + secondReach, returning the positive shortfall as gap and the positive excess as overlap.
When to use this tool
Use Landscape Light Spacing Dark Gap when you need one explicit landscape clearance margin.
How to use the tool and how it works
- Enter spacing, firstReach, secondReach. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read gap, overlap. Use the output convention below.
Compare spacing with firstReach + secondReach, returning the positive shortfall as gap and the positive excess as overlap.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| spacing | Spacing | Required. Finite number; minimum 0. |
| firstReach | First Reach | Required. Finite number; minimum 0. |
| secondReach | Second Reach | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| gap | Signed difference under the stated subtraction order. | Required. Finite number. |
| overlap | Overlap | Required. Finite number. |
{
"input": {
"spacing": 10,
"firstReach": 3,
"secondReach": 4
},
"output": {
"gap": 3,
"overlap": 0
}
}Limitations and assumptions
- The reaches are supplied geometric limits; actual light intensity, glare, and illumination standards are not evaluated.
- 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
Verify current measurements, future growth, survey datums, and applicable design requirements for the site.
References
Similar or alternative tools
- Tree Grille Corner Radius Clearance
Subtract trunkRadius, growthAllowance, and abs(placementError) from openingRadius for radialMargin.
- Tree Grid Boundary Clearance
Subtract canopyRadius from centerDistance for clearance and subtract suppliedSetback for slack.