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A linear dimension between two points - build a measurement annotation right in the graph.

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• Point 1 (point) / Point 2 (point): the span to measure.
• Distance (any, editable): how far the dimension line floats off the span. Wire a point and the line passes through it (the distance socket, like the Directed Rectangle's Width), or give a number or a value field.
• Type: a dropdown: Aligned (distance along a->b), Horizontal (|Δx|), or Vertical (|Δy|). A wired integer overrides it by index (0/1/2).

• Dimension (any): a dimension payload, materialized into a real model dimension by Realize. The output is a list (each entry indexes its own points), so wire it through Collect to gather many dimensions at once.

The same idea across a span rather than around a corner. Point 1 and Point 2 set what is measured, Distance sets how far the dimension line floats off it, and Type chooses whether that reads along the span or as pure horizontal or vertical.

Like the other dimension nodes it produces an annotation, not geometry, and stays invisible until Realize.

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• In the modeling view: Dimension: Linear - draw the same dimension by hand.
• Arrow Style: set the arrowheads before you realize it.
• Dimensions: what dimensions measure, how they're styled, and how they export.
• A node-made dimension behaves and exports exactly like a hand-drawn one, on the same Annotations layer.