computeLeaderAttachmentPoint Function
Computes the attachment point for a leader line on a text annotation frame.
The attachment point is determined based on the leader's attachment mode:
"Nearest": Finds the closest point on the frame curve to the leader's start point."KeyPoint": Uses a specific curve segment and fraction along that segment to determine the point."TextPoint": Calculates a point on the text layout (top/bottom, left/right) and projects it onto the frame curve.
computeLeaderAttachmentPoint(leader: TextAnnotationLeader, frameCurve: Loop | Path, textLayout: TextBlockLayout, transform: Transform): Point3d | undefined
@returns The computed attachment point as a Point3d, or undefined if it cannot be determined.
| Parameter | Type | Description |
|---|---|---|
| leader | TextAnnotationLeader | The leader props. |
| frameCurve | Loop | Path | The curve (Loop or Path) representing the annotation frame. |
| textLayout | TextBlockLayout | The layout information for the text block. |
| transform | Transform | The transform applied to the text layout. |
Returns - Point3d | undefined
The computed attachment point as a Point3d, or undefined if it cannot be determined.
Defined in
Last Updated: 29 July, 2025
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