Dimension

The Dimension model captures a single dimensional annotation extracted from a drawing. It preserves the measured value, tolerance scheme, units, and arrowed geometry so the dimension can be recreated or validated digitally. The object links to relevant datums, features, and notes, enabling downstream tools to understand how the measurement interacts with the broader design intent. Beyond the numeric value, it records whether the dimension is basic, reference, or key to quality and stores any modifiers such as symmetry or statistical process control tags. This normalized representation lets you run tolerance stack-ups, generate inspection plans, or compare revisions to see how sizing has changed without reinterpreting each drawing manually.

Bases: Feature

Represents a measurement cue in an engineering or technical drawing.

PARAMETER	DESCRIPTION
`reference_id`	Reference ID to identify the object. TYPE: `int`
`label`	A short description of the feature in a human-readable format. TYPE: `str`
`confidence`	Confidence in the feature extraction or interpretation. TYPE: `Confidence \| None`
`quantity`	The quantity or value associated with the measurement, must be non-negative. TYPE: `int`
`size`	Details about the size, including type, nominal value, tolerance, and unit. TYPE: `Size`

Source code in werk24/models/v2/models.py

class Dimension(Feature):
    """
    Represents a measurement cue in an engineering or technical drawing.
    """

    quantity: int = Field(
        ...,
        ge=0,
        description="The quantity or value associated with the measurement, must be non-negative.",
        examples=[10],
    )

    size: Size = Field(
        ...,
        description="Details about the size, including type, nominal value, tolerance, and unit.",
    )