Flatten a blend curve to a plane

You can link a blend curve to a reference plane so Alias always keeps the curve in the plane.

1. Pick the curve and the reference plane.
2. Choose Curves > Blend Curve Toolbox to show an extra floating palette containing the BlendCrv Tools tab.
3. Choose BlendCrv Tools > Blend Curve Planarize.

   The blend curve and reference plane stay linked, so transforming the reference plane modifies the blend curve.

   Note:

   To unlink the blend curve from the plane, pick them and choose BlendCrv Tools > Blend Curve Planarize again.