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# 2.3.7.2 Draw Dimension Line

Creates a Dimension Line of various sizes.

With MagneticSnap (Section 2.12.1) enabled, the new line start position will snap to the nearest draw object, as shown by the anchor unless `Alt` is held down. If it is disabled, it will only snap if Alt is held. If GridSnap is enabled and MagneticSnap does not find a postion, the first position will snap to the Grid. This is suppressed if Alt is held.

If `Ctrl` is held down during `Left+Drag` the line will snap the angle of the new side to a multiple of 90 degrees.