radial_dim_icon.png Radial/Diameter Dimension

This tool creates a dimension that displays the radius or diameter of an arc or circle. It is executed by picking a single arc or circular segment. After the pick, the dimension line is drawn from the click point on the arc to the current mouse position. An additional click will finish the input. The dimension text is preceded by the prefix “R” to indicate that the dimension shows a radius. You may switch the dimension to show the diameter by clicking on the respective radio button in the Tool Options palette. The prefix will now switch over to “Ø”.


As with linear and angular dimensions, radial dimensions use a style that determines how the text is displayed and which terminator is shown at the start of the dimension line. The text alignment can be set to Top, Center, or Bottom, which moves the text block relative to the end of the dimension line.