Add a full, fixed circle defined by a specified center point, direction, and radius.
The result is a circle with four pass-through points. The entity position is not affected by edits to adjacent entities.
Tip
You can use transparent commands when you are prompted to specify direction, radius, or length, or use station offsets to specify any points. For more information, see Transparent Commands.
To add a fixed curve (center point and radius)
- Click the alignment. Click Alignment tab
Modify panelGeometry Editor
. - On the Alignment Layout Tools toolbar, click
Fixed Curve (Center Point And Radius). - Specify the center point.
- Specify the curve direction: either clockwise or counter-clockwise.
- Specify a radius, or enter D to specify the degree of curvature.
Specify a new value, or press Enter to accept the value that is displayed on the command line.
- If the alignment has design criteria applied to it, the minimum value for the current design speed is displayed.
- If the alignment does not have design criteria applied to it, the default value specified in the curve and spiral settings is displayed. For more information, see Curve and Spiral Settings.
NoteTo calculate the radius or degree of curvature using other known curve parameters, enter 'CCALC to open the Curve Calculator. For more information, see Calculating Curve Parameters.A preview of the curve is displayed. A fixed circle with a center point and a radius is created.