Description
Calculate excludedArea=accessArea+equipmentArea-overlap and usableArea=grossArea-excludedArea.
A farm or garden budget depends on a common area, quantity, observation period, and system boundary. Recovery, exclusions, overlap, and allocation change how a share is calculated. Supplied accounting or geometry terms remain separate from measured crop performance and verified environmental outcomes.
Calculate excludedArea=accessArea+equipmentArea-overlap and usableArea=grossArea-excludedArea.
When to use this tool
Use Rooftop Area Exclusion Token when you need a clearly bounded area, material, resource, energy, or allocation term for supplied garden or farm records.
How to use the tool and how it works
- Enter grossArea, accessArea, equipmentArea, overlap. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read usableArea, excludedArea. Use the output convention below.
Calculate excludedArea=accessArea+equipmentArea-overlap and usableArea=grossArea-excludedArea. Require nonnegative areas, overlap within both components, and exclusion union within gross.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| grossArea | Gross Area | Required. Finite number; minimum 0. |
| accessArea | Access Area | Required. Finite number; minimum 0. |
| equipmentArea | Equipment Area | Required. Finite number; minimum 0. |
| overlap | Overlap | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| usableArea | Usable Area | Required. Finite number. |
| excludedArea | Excluded Area | Required. Finite number. |
{
"input": {
"grossArea": 100,
"accessArea": 20,
"equipmentArea": 10,
"overlap": 5
},
"output": {
"usableArea": 75,
"excludedArea": 25
}
}Limitations and assumptions
- Overlap is an input, not a geometry calculation. Usable area here is an arithmetic remainder, not confirmation of safe roof access, structural adequacy, or growing permission.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Verify the system boundary, units, and source records before combining this term into a resource or environmental report. Physical design and crop-performance questions require appropriate measurements and a broader model.
References
Similar or alternative tools
- Rooftop BED Soil Load Area Term
Actual supplied planter mass accounting without a structural load rating.
- Planter Growing Area Share
Calculate growingArea=interiorLength*interiorWidth-excludedArea and share=growingArea/grossFootprintArea.