Transforming a Selection of Vertices

You can select multiple vertices in a mask and transform them as a group using the parameters. With the exception of translating vertices, transformation results are dependent on the position of the pivot point, displayed as a green or red circle in the image window. All transformations can be animated.

To transform a localized selection of vertices:

1. Select the node of the mask you want to edit.
2. Ctrl-drag over the vertices that you want to transform as a group.
3. Click the Vertices button.
4. Select an option from the Transformation box.

   Fields associated with the transformation type will be enabled.

5. Select an option from the Pivot Type box. (If Translate is selected as the transformation type, the box is disabled.)
   NoteIf the pivot point is selected, the position can also be moved by editing the X and Y Selection fields.
6. Do either of the following:
   • The active fields can be used to transform the selection.
   • Move the selection gesturally in the image window.