Constrained linear dimensioning

Tool

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Constrained Linear Dimension

Fundamentals: Dims/Notes

Architect, Landmark, Spotlight:
Basic and Dims/Notes

N

Use the Constrained Linear Dimension tool to draw dimension lines that are constrained to the X or Y axis of the plane where the dimension is created. This is different from the Unconstrained Linear Dimension tool, which can draw dimension lines at any angle. In addition to measuring and dimensioning objects, you can use this tool to calculate the horizontal or vertical distance between two or more points in the drawing.

In a 2D view, the dimension line is constrained to be parallel to either the X or Y axis of the active plane. In a 3D view, the dimension line is constrained to the X axis of the plane where it is created, but the plane can have any rotation (similar to the Unconstrained Linear Dimension tool).

If Snap to Working Plane is enabled in the Snapping set, the dimension line is projected to the current working plane, in both 2D and 3D views.

Mode

Description

Constrained Linear

Creates a constrained dimension line with a single measurement

Constrained Chain

Creates a continuous chain of constrained dimension lines

Constrained Baseline

Creates a series of connected constrained dimension lines, starting from an initial base point

Ordinate

Creates a series of constrained ordinate dimensions, starting from an initial base point

Selected Objects

Creates a constrained dimension line for the greatest span of a selected object or group of objects

Preferences

For Constrained Chain mode, specifies whether dimensions are created as a single chain object, or as individual dimension objects; also enables collision control, which automatically spaces text blocks so that they don't overlap

Dim Std

To change the dimension standard for new dimensions created in the document, select a standard from the list; select Custom Standards to create or manage custom dimensions (see Using custom dimension standards)

The dimension text can be moved. See Editing dimensions.

Constrained linear dimension

Constrained chain dimension

Constrained baseline dimension

Ordinate dimensions

Selected object dimensions

Editing dimensions

Associative dimensioning

Unconstrained linear dimensioning

 

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