Description
Return their difference as radialThickness and π × difference × sum as annularArea.
Geometric quantities depend on the coordinate system, the chosen shape, and compatible length units. A component formula can determine a midpoint, signed turn, or area term without validating an entire drawing or physical object.
Return their difference as radialThickness and π × difference × sum as annularArea.
When to use this tool
Use Cylinder Annulus Cross Section Thickness when you need one geometric component under the stated shape and orientation convention.
How to use the tool and how it works
- Enter outerRadius, innerRadius. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read radialThickness, annularArea. Use the output convention below.
Require outerRadius ≥ innerRadius ≥ 0. Return their difference as radialThickness and π × difference × sum as annularArea.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| outerRadius | Outer Radius | Required. Finite number. |
| innerRadius | Inner Radius | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| radialThickness | Radial Thickness | Required. Finite number. |
| annularArea | Annular Area | Required. Finite number. |
{
"input": {
"outerRadius": 5,
"innerRadius": 3
},
"output": {
"radialThickness": 2,
"annularArea": 50.26548245743669
}
}Limitations and assumptions
- This is an ideal circular cross section; coherent radius units give squared units for area and no cylinder length, volume, or material strength is included.
- 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
Check the complete geometry and use a suitable geometric model for intersections, tolerances, and construction details.
References
Similar or alternative tools
- Sphere Chord Midpoint Depth
Use the normalized half-chord and a rationalized sagitta expression for depthFromSurface to reduce cancellation.
- Grip Diameter Wrap Circumference
Multiply nonnegative diameterMillimeters by π for circumferenceMillimeters.