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. |