Dimensioning Concepts in AutoCAD

Design is often divided into four phases: drawing, annotating, viewing, and plotting. During annotation, the designer adds text, numbers, and other symbols to communicate such information as the size and materials of design elements or notes for constructing the design. Dimensions are a common drawing annotation; they show object measurements such as a wall length, cylinder diameter, or building site area.

AutoCAD provides many dimension types and many ways to format them. You can specify measurements for all drawing objects and shapes. You can measure vertical and horizontal distances, angles, diameters, and radii. You can create a series of dimensions measured from a common baseline or create a series of dimensions measured incrementally. The following illustration shows examples of dimensions you can create.



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