Drawing to BOQpipeline control sheet
← Mindmapwhat the drawings said

Track centerline

1 page · 2 crops · ×2

Matched toCrossing Alignmentbridge.alignment_system.crossing_alignmenton “C TRACK”

0 of 1 required measurements have a number

The model provider refused the call: the account is out of credit. Top up the OpenRouter key, or lower OPENAI_MAX_TOKENS.

The class asks forUnitA reading with that nameFrom
Skew AngleTHETAdegno reading by that name
ChainageCHoptionalmno reading by that name

Paired on the measurement’s name only, which cannot know that three span lengths sum to the deck length. Step 3 works these out properly for every item it matches — reading every crop behind the item, deriving what the drawings imply and showing its arithmetic. This item has not had that pass yet; the button runs it for this one.

How the sheets named it

C TRACK

Every crop it was read in — the drawing beside what the model took off it

Page 1

crop

p01_r05 construction clearance diagram

page 1 · gdot_plan_649084f395824aaebf1f5ed48132696f_p01_r05_construction_clearance_diagram
Original
p01_r05 construction clearance diagram
{
  "view": "Detail",
  "objects": [
    {
      "name": "Clearance envelope",
      "tag": "",
      "shape": "rectangular",
      "material": "",
      "count": 1,
      "note": "Outline representing construction clearance envelope relative to track"
    },
    {
      "name": "Track centerline",
      "tag": "C TRACK",
      "shape": "linear (centerline)",
      "material": "",
      "count": 1,
      "note": "Vertical dash-dot line denoting centerline of track"
    },
    {
      "name": "High rail",
      "tag": "",
      "shape": "",
      "material": "",
      "count": 1,
      "note": "Leader points to 'TOP OF HIGH RAIL' location within envelope, no distinct shape drawn beyond arrow"
    }
  ],
  "measurements": [
    {
      "label": "Overall width",
      "value": "22'-0\"",
      "unit": "ft-in",
      "appliesTo": "Clearance envelope"
    },
    {
      "label": "Half width left of centerline",
      "value": "13'-0\"",
      "unit": "ft-in",
      "appliesTo": "Clearance envelope"
    },
    {
      "label": "Half width right of centerline",
      "value": "13'-0\"",
      "unit": "ft-in",
      "appliesTo": "Clearance envelope"
    }
  ],
  "notes": [],
  "labels": [
    "CONSTRUCTION CLEARANCE DIAGRAM",
    "NO SCALE",
    "C TRACK",
    "TOP OF HIGH RAIL"
  ],
  "description": "This crop is a schematic construction clearance diagram showing a rectangular envelope 22'-0\" wide, split into two 13'-0\" halves about a vertical track centerline. A leader identifies the 'top of high rail' location within the envelope. The diagram is noted as 'NO SCALE' and appears to define required clearance limits relative to a rail track centerline."
}

p01_r05 construction clearance diagramDetail

  • Track centerlineC TRACK×1linear (centerline)Vertical dash-dot line denoting centerline of track

22'-0" ft-in Overall width13'-0" ft-in Half width left of centerline13'-0" ft-in Half width right of centerline

crop

p01_r05

page 1 · other_p01_r05
Original
p01_r05
{
  "view": "Detail",
  "objects": [
    {
      "name": "track centerline",
      "tag": "",
      "shape": "linear",
      "material": "",
      "count": 1,
      "note": "vertical dash-dot centerline representing Ç TRACK within clearance envelope"
    },
    {
      "name": "top of high rail",
      "tag": "",
      "shape": "point/callout",
      "material": "",
      "count": 1,
      "note": "callout marking rail elevation reference point inside clearance box"
    }
  ],
  "measurements": [
    {
      "label": "overall vertical clearance dimension",
      "value": "22'-0\"",
      "unit": "ft-in",
      "appliesTo": "clearance envelope"
    },
    {
      "label": "horizontal offset left of track centerline",
      "value": "13'-0\"",
      "unit": "ft-in",
      "appliesTo": "clearance envelope"
    },
    {
      "label": "horizontal offset right of track centerline",
      "value": "13'-0\"",
      "unit": "ft-in",
      "appliesTo": "clearance envelope"
    }
  ],
  "notes": [],
  "labels": [
    "CONSTRUCTION CLEARANCE DIAGRAM",
    "NO SCALE",
    "Ç TRACK",
    "TOP OF HIGH RAIL"
  ],
  "description": "This crop is a detail titled 'CONSTRUCTION CLEARANCE DIAGRAM' (no scale) showing a rectangular clearance envelope around a railroad track. It gives an overall vertical dimension of 22'-0\" and horizontal dimensions of 13'-0\" on each side of the track centerline, with callouts identifying the track centerline and the top of high rail. It appears to define the required minimum construction clearance envelope around an existing rail line, related to the vertical clearance notes for the bridges described elsewhere on the sheet."
}

p01_r05Detail

  • track centerline×1linearvertical dash-dot centerline representing Ç TRACK within clearance envelope

22'-0" ft-in overall vertical clearance dimension13'-0" ft-in horizontal offset left of track centerline13'-0" ft-in horizontal offset right of track centerline