Description
Calculate one-axis crown-shade bounds around a supplied horizontal offset.
Landscape geometry distinguishes plan area, depth, void fraction, grade, center spacing and nominal clearances. A horizontal-per-vertical slope is the inverse orientation of rise/run, and post counts differ from bay counts. Supplied geometric terms do not establish stability, drainage, accessibility or safe construction.
Calculate one-axis crown-shade bounds around a supplied horizontal offset.
When to use this tool
Use Tree Crown Ground Shade Radius Inputs when you already have crownRadius, suppliedHorizontalShadowOffset and need to calculate one-axis crown-shade bounds around a supplied horizontal offset.
How to use the tool and how it works
- Enter crownRadius, suppliedHorizontalShadowOffset. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read minimumAxisCoordinate, maximumAxisCoordinate. Use the output convention below.
Require crownRadius>=0; return offset-radius and offset+radius.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| crownRadius | Crown Radius | Required. Finite number; minimum 0. |
| suppliedHorizontalShadowOffset | Signed one-axis offset in the same length unit as crownRadius; not derived from solar position. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| minimumAxisCoordinate | Minimum Axis Coordinate | Required. Finite number. |
| maximumAxisCoordinate | Maximum Axis Coordinate | Required. Finite number. |
{
"input": {
"crownRadius": 3,
"suppliedHorizontalShadowOffset": 2
},
"output": {
"minimumAxisCoordinate": -1,
"maximumAxisCoordinate": 5
}
}Limitations and assumptions
- Assumes a symmetric crown projection on one axis; no sun angle, actual shadow, canopy shape or shade suitability is modeled.
- 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 a verified site survey and complete dimensioned layout for a landscape design. Include material behavior, drainage, ground conditions and the applicable requirements when local volumes, grades or spacing calculations cannot answer the full question.
References
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