Subdivision > Align to Surface

Aligns selected CVs and associated edges of a subdivision body to a NURBS surface.

Use this tool to smooth or modify selected CVs using a NURBS surface.

You can use this tool to align selected CV's to a NURBS surface in the following ways:

Approximation

Specifies the type of curve that drives alignment.

Linear - degree-1 surface

Quadratic - degree-2 surface

Cubic - degree-3 surface

Projection Direction

Specifies the direction of the CV alignment.

Closest - Aligns CVs along the axis that is closets to the average CV location.

X Axis, Y Axis, Z Axis - Align CV's along the specified axes.

Create History

Turn on to maintain the construction history on the surface when you use an existing NURBS surface for alignment or select the Generate Surface method to align CVs. When off, you cannot use the Generate Surface method to align CVs.

Note:

Starting in Alias 2022.2 Update, you can use the Replace and Replace Multiple commands in the History Visualizer to replace the surface inputs to the Subdiv Align to Surface tool. This means, you can easily swap out the surface you are using to align subdivision CVs to quickly change the alignment results. Note that you cannot use the Replace command to change the selected CVs or the parent subdivision object. See Modify construction history by replacing input geometry.