In order to create a dimension representing length of ellipse axis, upon calling the Dimension command, select an ellipse or an elliptical arc by clicking it with . The preview of the dimension appears representing a length of one of the axes, while dimension line and value positioning and dimension symbol options become available in the automenu. If you need to create a length of a different axis, you can switch to it using the following automenu option:
<M> |
Change Dimension type |
Dimension line will follow the cursor in direction normal to the selected axis, dimension value will follow the cursor along the dimension line. Witness lines will connect the dimension line with extreme points of the axis. Set the desired positions of dimension line and value by moving the cursor, and confirm it by pressing or <Enter>. The dimension will be created. Upon creating a dimension, the command returns to initial state.