To Dimension a Conic Arc Using rho

1. Click Sketch > Normal or right-click and choose Dimension from the shortcut menu.

2. Select the conic arc and then middle-click to place the dimension. The default rho value is 0.5.

3. You can modify rho as follows:

◦ For a parabola, use the default value of 0.5.

◦ For an ellipse, type a value between 0.05 and 0.5.

◦ For a hyperbola, type a value between 0.5 and 0.95.

When you create a closed ellipse section from four conic segments, type a rho value of (sqrt (2)–1). Do not use the approximation 0.4142 for the square root value. |