Other Modules > Other Modules > Modifying Geometry > Modifying Splines > Modifying the Shape of a Spline
Modifying the Shape of a Spline
Using Control Poly, you can modify the shape of a spline. When you click Control Poly, spline control points display with line segments between them on the spline. The line segments begin and end at the startpoints and endpoints of the spline, and intermediate segments always remain tangent to the spline. These line segments are visual aids for modifying the shape of the spline.
You can move the spline control points by picking them and dragging them to a new location. The spline curve rubberbands with the point movement to display how the spline shape changes with movement of the points.
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You cannot use Control Poly to move a spline endpoint, or to modify a spline that has a tangency condition defined for one end only.