Use this command to display the Combination Spiral Curve dialog for selected PI or the Single Spiral Curve dialog for the selected PT.
When you highlight a PI and choose the Spiral Command, TPC assumes you want to use the Combination Spiral dialog that allows you to enter an incoming spiral, a simple curve and an outgoing spiral.
If you are highlighting any other control point, TPC assumes you want to use the Single Spiral dialog that allows you to enter a single spiral segment with beginning and ending radius and spiral length.
Toolbar:
Keys: CTRL+L
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