The Dimension Display dialog box controls the display of extension lines, dimension lines, and leader lines. To access this dialog box, click Display in the Dimension Properties dialog box.
Extension Lines. Displays first or second extension lines, or both.
Dimension Lines. Displays first or second dimension lines, or both.
Smart display of extension lines. Hides extension lines when they are bound by edges or sketch lines. When selected, extension lines on top of geometry are not displayed, so edges and sketch lines do not appear thicker.
Automatically choose arc length leaders. Applies parallel leaders to arc length leaders. When cleared, allows you to select Show Leaders Radially.
Use document bend length. Uses the value for Bent leader length in Tools, Options, Document Properties, Dimensions. When cleared, you can specify the dimension bent leader length. Type a value in the box.
Center between extension lines. Automatically centers dimensions between extension lines. If the text is inside the extension lines (or inside the dimension lines, in the case of a radial or diameter dimension), it snaps to the center, and is locked in position between the extension lines unless you drag it outside of the extension lines. If the text is outside the extension lines, it remains outside.
Show Leaders Parallel. Applies parallel leaders to arc length leaders.
Show Leaders Radially. Applies radial leaders to arc length leaders.
Override standard's dimension display. Allows you to choose a display style.