Description
Sum length*width, require the sum<=plotArea and return its area share.
Habitat geometry describes lengths, overlaps and areas on explicit ideal shapes. An edge-to-area ratio and a root-depth overlap summarize different spatial relations; neither identifies a species-specific edge effect or functional connectivity. Supplied nonoverlap flags do not replace a geometric check.
Sum length*width, require the sum<=plotArea and return its area share.
When to use this tool
Use Habitat Edge Strip Area Ratio when checking the stated ideal habitat, buffer or interval geometry.
How to use the tool and how it works
- Enter edgeLengths, stripWidths, nonoverlapVerified, plotArea. Follow any array-alignment requirements below. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read stripArea, ratio. Use the output convention below.
Require aligned nonnegative strip lengths/widths, positive plot area and nonoverlapVerified=true. Sum length*width, require the sum<=plotArea and return its area share.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| edgeLengths | Edge Lengths | Required. Array of finite number; maximum items 256. |
| stripWidths | Strip Widths | Required. Array of finite number; maximum items 256. |
| nonoverlapVerified | Required true caller assertion; the tool does not independently inspect strip geometry. | Required. Boolean. |
| plotArea | Plot Area | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| stripArea | Strip Area | Required. Finite number. |
| ratio | Ratio | Required. Finite number. |
{
"input": {
"edgeLengths": [
10,
20
],
"stripWidths": [
1,
2
],
"nonoverlapVerified": true,
"plotArea": 100
},
"output": {
"stripArea": 50,
"ratio": 0.5
}
}Limitations and assumptions
- Nonoverlap is an assertion, not geometrically verified; actual strip intersections and ecological effects remain outside the calculation.
- 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 mapped boundaries and appropriate complete spatial/ecological models for real habitat function or field layout.
References
Similar or alternative tools
- Habitat Strip Edge Ratio
Return perimeter=2*(length+width) and perimeter/area=2*(1/length+1/width).
- Habitat Buffer Edge Area Factor
Return nominal rectangle area=length*width and add the signed cornerCorrection for correctedArea.