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Fabric Direction Nap Pair Tag

Preserve explicit fabric grain and nap direction labels without identifying textile structure.

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Description

Record the stated fabric direction and nap convention.

Garment geometry distinguishes body and finished dimensions, elastic rest length, seamline/cutline offsets, motif phases and joining losses. A nominal coordinate or length budget does not establish material behavior or a suitable fit. Direction, angle units and the number of gaps rather than objects affect the result.

Record the stated fabric direction and nap convention.

When to use this tool

Use Fabric Direction Nap Pair Tag when checking the stated garment length, allowance, repeat or material-record convention.

How to use the tool and how it works

  1. Enter pieceId, grainDirectionText, napDirectionText. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read token. Use the output convention below.

Require nonempty piece ID, grain-direction text and nap-direction text. Encode the ordered triple as JSON text.1

Input fieldMeaning and unitsAccepted input
pieceIdPiece IdRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
grainDirectionTextGrain Direction TextRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
napDirectionTextNap Direction TextRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
Output fieldInterpretationReturned shape
tokenJSON-encoded ordered tuple or literal token under the convention above; not a database lookup or authentication result.Required. Text; maximum UTF-16 length 8192.
json
{
  "input": {
    "pieceId": "P17",
    "grainDirectionText": "lengthwise",
    "napDirectionText": "toward top"
  },
  "output": {
    "token": "[\"P17\",\"lengthwise\",\"toward top\"]"
  }
}

Limitations and assumptions

  • The text is not parsed or physically verified; no cutting orientation, fabric behavior or suitable layout is determined.
  • 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.

Alternative or Complementary methods

Use measured pattern/material properties, fitting evidence and appropriate complete production methods for actual garment fit and construction.

References

  1. Calculation and input contract: fashion/fabric-direction-nap-pair-tag — tool.io

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