Surface Modeling > NURBS Modeling > Creating and Editing NURBS Sub-Objects > Creating Curve Sub-Objects > 
Mirror Curve
 
 
 
Command entry:Select a NURBS object. Modify panel Create Curves rollout Dependent Curves group box Mirror button
Command entry:Select a NURBS object. Modify panel NURBS toolbox (Create Mirror Curve)

A mirror curve is a mirror image of the original curve.

Curve used to create a mirror curve

Procedures

To create a mirror curve:

The NURBS object must contain at least one curve.

  1. In the NURBS toolbox, turn on (Create Mirror Curve).
  2. On the Mirror Curve rollout, choose the axis or plane you want to use.
  3. Click the curve you want to mirror, and drag to set the initial distance.

    A mirror curve is created. A gizmo (yellow by default) indicates the direction of mirroring. Transforming the mirror curve's gizmo changes the orientation of the mirror, letting you mirror along an axis that isn't aligned with a local coordinate axis.

  4. Adjust the mirror parameters.

Interface

In viewports a gizmo (yellow by default) indicates the mirror axis.

Mirror Curve rollout (creation time)

Mirror Axis group

The Mirror Axis buttons control the direction in which the original curve is mirrored.

You can't transform the mirror curve directly (that would simply transform the mirror curve and its parent curve at the same time). You transform it by transforming its gizmo. By using transforms you can mirror about an arbitrary axis, rather than using one of the Mirror Axis presets. When you transform a mirror curve, you are actually transforming the mirror plane, so Rotate has the effect of rotating the plane about which the curve is mirrored. (This is like rotating the mirror gizmo in the Mirror modifier.)

Offset

Controls the mirror's distance from the original curve.

This parameter is animatable.

Mirror Curve rollout (modification time)

Mirror Axis group

The Mirror Axis buttons control the direction in which the original curve is mirrored.

You can't transform the mirror curve directly (that would simply transform the mirror curve and its parent curve at the same time). You transform it by transforming its gizmo. By using transforms you can mirror about an arbitrary axis, rather than using one of the Mirror Axis presets. When you transform a mirror curve, you are actually transforming the mirror plane, so Rotate has the effect of rotating the plane about which the curve is mirrored. (This is like rotating the mirror gizmo in the Mirror modifier.)

Offset

Controls the mirror's distance from the original curve.

This parameter is animatable.

Replace Base Curve

Lets you replace the parent curve. Click the button, then click the curve to replace the original curve.

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