{
  "title": "Narrow fabric data for AI repeat and width checks",
  "source_page": "https://fiund.com/industries/narrow-fabric-repeat-width-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A repeat measured along the ribbon",
    "context": "An original ribbon drawing has asymmetric leaf motifs. A tabletop photo and sketched crop map replace real patterns and customer artwork.",
    "records": [
      [
        "N1",
        "Untrimmed image ruler",
        "Left ribbon edge at 10 mm and right at 32 mm on the transverse ruler."
      ],
      [
        "N2",
        "Long-axis crop map",
        "Leaf tips at 15, 43 and 71 mm along the length; each tip corresponds to the same motif orientation."
      ],
      [
        "N3",
        "Crop notice",
        "A close-up clips both edges and shows only two tips."
      ],
      [
        "N4",
        "Label request",
        "Provide usable full-width and pitch labels with their measurement axis."
      ]
    ],
    "question": "Which measurements should the annotation store?",
    "answer": "Record 22 mm across the ribbon from the two transverse edges in N1. Record 28 mm along the ribbon between corresponding leaf tips in N2; the next interval agrees. N3 cannot independently establish full width because both edges are cropped.",
    "failureModes": [
      "Reporting pitch as width",
      "Measuring from leaf tip to stem and calling that a full repeat"
    ],
    "fields": [
      [
        "measurement_axis",
        "Keeps transverse width distinct from along-length pitch"
      ],
      [
        "landmark_type",
        "Identifies matching points in neighboring repeats"
      ],
      [
        "edge_visibility",
        "Marks crops that cannot support a width label"
      ]
    ],
    "holdout": "Use an alternating leaf design where adjacent tips point opposite ways; the full repeat spans matching orientation landmarks.",
    "boundary": "Only include owned geometry and images; exclude branded ribbon, embroidery files and buyer templates."
  }
}