Edit a label or measurement object

Tips and notes

The measurements automatically update when you move or modify the objects/locators the measurements are attached to.
You can extend an angle measurement beyond the locators. The measurement draws extension lines connecting itself to the original locators.
You cannot add a radius measure to a straight line.
You can add more than one radius locator to a curve or arc.
When the “center of curvature” of a measurement is displayed ( -click off the measurement with the ), you can snap to the centerpoint using CV/Edit Point snapping.
Using the Radius tool on some circles shows that they are not perfectly round. For perfectly round circles, use rational geometry or keypoint circles. The Diameter tool only works on perfectly round circles.
You can get a continuous comb of radius values along a curve using the Plot Value Radius option of the Curve Curvature tool.