To Work With Curve and Spiral Settings for Alignments

Specify default spiral type and values in the Curve and Spiral Settings dialog box or by editing the Curve and Spiral Settings for the CreateAlignmentLayout command.

While you can select various combinations of Spiral In, Curve, and Spiral Out, the A value of the spirals is controlled by the radius of the curve. The length of the spirals is controlled by changing the A Value.

The parameter values in the Curve and Spiral Settings dialog box apply only to the curves and spirals created using the Tangent-Tangent with Curves command in the current alignment. You can specify default settings for all curves and spirals by editing the settings in the CreateAlignmentLayout command.

To change the default Curve and Spiral Settings for all instances

1. On the Settings tab in Toolspace, expand the Alignments collection and then expand the Commands collection.
2. Right-click CreateAlignmentLayout Edit Command Settings.
3. In the Edit Command Settings-CreateAlignmentLayout dialog box, expand the Curve and Spiral Settings property.
4. Specify the settings, click Apply and click OK.
   Note: To save these command settings at the drawing level, on the Ambient Settings tab in the Drawing Settings dialog box, select Yes in the value column for Save Command Changes To Settings.

To change the Curve and Spiral Settings used by the tangent-tangent with curves method

1. Click Home tabCreate Design panelAlignment drop-downAlignment Creation Tools Find.
2. In the Create Alignment-Layout dialog box, enter creation information.
3. On the Alignment Layout Tools toolbar, click Curve And Spiral Settings.
4. In the Curve and Spiral Settings dialog box, enter curves values.
   Note: The spiral type you specify in the Curve and Spiral Settings dialog box is used in all spiral commands on the Alignment Layout Tools toolbar.