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About Aligning Objects

Curves and surfaces can be aligned with other curves and surfaces. This is useful for positioning and attaching surfaces side by side.

To align two curves by their positions:

1.
Draw two curves to be used for alignment (Figure 6.20), or open a file that has two curves.

Figure 6.20. Two curves ready for alignment.


2.
Select a curve point on the first curve you want to align by right mouse-clicking it and selecting Curve Point from the Marking Menu, then click a point on the curve (Figure 6.21).

Figure 6.21. Right mouse-clicking a curve pulls up its Marking Menu that allows you to select the chosen component.


3.
Select a point on the second curve you want to align by right mouse–clicking the curve and selecting Curve Point from the Marking Menu, then -click a point on the curve (Figure 6.22).

Figure 6.22. Select the points on each curve you want to align with.


4.
From the Edit Curves menu select the box next to Align Curves.

The Align Curves Options dialog box opens.

5.
In the Align Curves Options dialog box, set the Continuity to Position, and Modify Position to First (Figure 6.23).

Figure 6.23. The Position setting will keep the original shape of the curves.


Position continuity aligns the first Control Vertex (CV) of the first curve to the selected point of the second curve. Modify Position set to First moves the entire first curve into alignment with the second curve.

6.
Press Align to align the two curves.

The entire curve selected first moves into alignment with the second curve.


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