North Arrow Placement Margin Convention Checker
Caller specification screen for marginMm only; not universal legibility, ADA compliance, print readiness or accessibility certification.
Description
North Arrow Placement Margin Convention Checker: return within caller bounds.
A north-arrow margin is a placement measurement within a specific map layout. Acceptable spacing depends on the declared production convention.
This tool returns within caller bounds. Use the stated units and model convention when interpreting these fields.
When to use this tool
Use this tool when the supplied inputs match the specific operation described above and you need a repeatable result under its stated convention.
- Check the supported input and output contract against an existing calculation or observation.
- Use the complete example to confirm units, selector spelling and result interpretation.
How to use the tool and how it works
- Enter every field in the input table using the stated units and the exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
Validate the caller's ordered minimum and maximum, then compare marginMm inclusively with them.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| marginMm | Margin mm. Millimeters. | Finite number |
| callerMinimum | Caller minimum. | Finite number |
| callerMaximum | Caller maximum. | Finite number |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.withinCallerBounds | Inclusive comparison with the ordered lower and upper bounds supplied by the caller. |
{
"input": {
"marginMm": 10,
"callerMinimum": 5,
"callerMaximum": 50
},
"output": {
"result": {
"withinCallerBounds": true
}
}
}Limitations and assumptions
- No universal margin, north direction or actual graphic placement is calculated.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
Check the underlying observations, units and conventions independently before using the result in a larger workflow. The tools listed below address nearby tasks; compare their inputs and scope before substituting one for this operation.
References
Similar or alternative tools
- Map Margins Standard Bleed Allowance Checker
Caller specification screen for bleedMm only; not universal legibility, ADA compliance, print readiness or accessibility certification.
- Aspect Direction Octant Classifier from Slope Components
Downhill compass aspect from explicitly east/north uphill partial derivatives; flat separately reported, half-octant boundaries round clockwise.