A spline is a graphic object defined by at least three points. When a curve object is selected and the Edit tool is active, the control hooks at the ends of the curve, at its midpoint, and at the adaptation points are displayed.

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When the control hooks are visible, the following operations can be performed:

  • Activate and drag one of the external hooks to change the corresponding endpoint of the curve.

  • Activate and drag one of the adapter hooks to change the shape of the curve.

  • Activate and drag the central hook to move the curve.

  • Click anywhere on the curve and drag the mouse to move the curve.

  • Right-click on a hook to display the corresponding menu of commands.

SuggerimentoTip:

While dragging a hook you can press the TAB key to constrain the horizontal or vertical displacement from the starting position.

Commands in the hook menu

Command Description

Move All

Moves all active hooks. Displays the Move dialog box.

Deselect All

Deactivates all active hooks.

Select Hook

Activates the clicked hook.

Deselect Hook

Disables the clicked hook.

Move Vertex

Displays the dialog box in which to specify the new coordinates of the point of the curve.

Move Curve

Displays the Move dialog box. This command acts only on the object to which the clicked hook belongs and allows you to move an object included in a group independently of the other objects in the group.

Rotate Curve

Displays the Rotate dialog box. This command acts only on the object to which the clicked hook belongs and allows you to rotate an object included in a group independently of the other objects in the group.

Resize Curve

Displays the Resize dialog box. This command acts only on the object to which the clicked hook belongs and allows you to resize an object included in a group independently of the other objects in the group.

Properties Curve

Displays the Properties dialog box. This command acts only on the object to which the clicked hook belongs and allows you to modify the parameters of an object included in a group independently of the other objects in the group.

Show reference point

Displays the transformation center of the selection. The transformation center is initially hidden and is set in the center of the selection rectangle. See the Transformation center.

See also