Description
Calculate equal covered width on each side of a mat-board window.
Artwork dimensions depend on whether a measurement describes the image, support, window, overlap or reserved edge. Linear enlargement multiplies area by the square and volume by the cube of the scale. A signed clearance or width adjustment retains useful direction information, while a nominal geometric fit still needs material, production and installation context.
Calculate equal covered width on each side of a mat-board window.
When to use this tool
Use Mat Board Window Reveal Width when you already have imageWidth, windowWidth and need to calculate equal covered width on each side of a mat-board window.
How to use the tool and how it works
- Enter imageWidth, windowWidth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read coveredWidthEachSide. Use the output convention below.
Require nonnegative image/window widths; return (imageWidth-windowWidth)/2.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| imageWidth | Image Width | Required. Finite number; minimum 0. |
| windowWidth | Window Width | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| coveredWidthEachSide | (imageWidth-windowWidth)/2; negative for a window wider than the image. | Required. Finite number. |
{
"input": {
"imageWidth": 30,
"windowWidth": 28
},
"output": {
"coveredWidthEachSide": 1
}
}Limitations and assumptions
- Assumes a centered window; a negative result is an oversize-window margin, not proof of acceptable mounting.
- 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 an actual dimensioned layout or calibrated test piece for mounting and production. Use a geometric model for full enlargement or overlap accounting, and physical drawdowns or material tests when thickness behavior matters.
References
Similar or alternative tools
- Mural Panel Registration Overlap
Calculate combined panel length after subtracting one mural-registration overlap.
- Canvas Stretcher Inset Clearance
Calculate an equal side inset between canvas and stretcher widths.