gdt::datumFunction in std::gdt

WARNING: This function is experimental and may change or be removed.

GD&T datum feature.

gdt::datum(
  face: TaggedFace,
  name: string,
  framePosition?: Point2d,
  framePlane?: Plane,
  fontPointSize?: number(_),
  fontScale?: number(_),
): GdtAnnotation

Arguments

Name	Type	Description	Required
`face`	`TaggedFace`	The face to be annotated.	Yes
`name`	`string`	The name of the datum.	Yes
`framePosition`	`Point2d`	The position of the feature control frame relative to the leader arrow. The default is `[100mm, 100mm]`.	No
`framePlane`	`Plane`	The plane in which to display the feature control frame. The default is `XY`. Other standard planes like `XZ` and `YZ` can also be used. The frame may be displayed in a plane parallel to the given plane.	No
`fontPointSize`	`number(_)`	The font point size to use for the annotation text rendering. The default is `36`.	No
`fontScale`	`number(_)`	Scale to use for the annotation text after rendering with the point size. The default is `1.0`. Must be greater than `0`.	No

Returns

GdtAnnotation - A GD&T annotation.

Examples

@settings(experimentalFeatures = allow, defaultLengthUnit = in)

width = 5

startSketchOn(XY)
  |> startProfile(at = [0, 0])
  |> line(end = [width, 0], tag = $side1)
  |> line(end = [0, width], tag = $side2)
  |> line(end = [-width, 0], tag = $side3)
  |> line(end = [0, -width], tag = $side4)
  |> close()
  |> extrude(length = 5, tagStart = $bottom, tagEnd = $top)

gdt::datum(
  face = side2,
  name = "A",
  framePosition = [5, 0],
  framePlane = XZ,
)

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