Add a floating curve, defined by a specified radius and angle range, from an existing entity to a specified end point.
This curve supports both compound and reverse solutions.
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.
The following illustration shows a floating curve attached to a fixed line and two possible solutions for a given radius and point:
The following illustration shows a floating compound curve attached to a curve and four possible solutions for a given radius and pass-through point. The illustration also shows variables for greater than and less than 180 degrees and compound and reverse variables:
To add a floating curve (from entity, radius, through point)
- Click the alignment. Click Alignment tab
Modify panelGeometry Editor
. - On the Alignment Layout Tools toolbar, click
Floating Curve (From Entity, Radius, Through Point). - Select the end of the entity to which you want to add the floating curve.
- 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. - Specify whether the curve solution angle is either greater than or less than 180 degrees. A preview curve is displayed.
- Specify the pass-through point.