Description
Calculate the signed width clearance between a packaging tab and its opening.
Print and screen geometry depends on coordinate scale, placed image size, bleed/inset definitions and pixel transparency. Placed pixels per inch differs from printer dots per inch, and a caller-chosen margin differs from a verified production tolerance. Empty-image conventions and threshold equality affect bounding results.
Calculate the signed width clearance between a packaging tab and its opening.
When to use this tool
Use Packaging Dieline Tab Clearance Term when checking the stated artwork geometry, placement, screen angle or alpha-bound convention.
How to use the tool and how it works
- Enter tabWidth, openingWidth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedGap. Use the output convention below.
Return openingWidth-tabWidth as a signed gap in one common length unit.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| tabWidth | Tab Width | Required. Finite number. |
| openingWidth | Opening Width | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedGap | openingWidth-tabWidth; signed inputs are allowed and actual packaging fit is not verified. | Required. Finite number. |
{
"input": {
"tabWidth": 12,
"openingWidth": 17
},
"output": {
"signedGap": 5
}
}Limitations and assumptions
- Signed dimensions are accepted; nominal clearance does not establish fold geometry, material fit or a safe packaging design.
- 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
Inspect rendered artwork and verified production/device specifications for actual print quality, cropping, fit and manufacturing requirements.
References
Similar or alternative tools
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