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.

Vertices Settings

Transformation box
Select the type of modification that is permitted on the selected vertices. In the image window, the pivot icon indicates the transformation type.
Pivot Type box
Select to place the pivot in the center of the mask (Centroid) or vertex selection set (Selection), or set the pivot gesturally (Manual).
X Selection field
Displays the position on the X axis of the selected vertex. Editable.
Y Selection field
Displays the position on the Y axis of the selected vertex. Editable.
X Translate field
Displays the position on the X axis of the selected vertex. Editable.
Y Translate field
Displays the position on the Y axis of the selected vertex. Editable.
X Scale field
Displays the scale value on the X axis of the selected vertices. Editable.
Y Scale field
Displays the scale value on the Y axis of the selected vertices. Editable.
Proportional button
Enable to change the scale fields proportionally.
X Shear field
Displays the shear value on the X axis of the selected vertices. Editable.
Y Shear field
Displays the shear value on the Y axis of the selected vertices. Editable.
Proportional button
Enable to change the shear fields proportionally.
Z Rotation field
Displays the rotation value on the Z axis of the selected vertices. Editable.

Tangents Settings

In Angle field
Displays the angle of the incoming tangent handle. Editable.
In Distance field
Displays the length of the incoming tangent handle. Editable.
Out Angle field
Displays the angle of the outgoing tangent handle. Editable.
Out Distance field
Displays the length of the outgoing tangent handle. Editable.
Auto Tangent button
Enable to create tangents automatically. When enabled, the Tracker will affect tangents.
Auto Adjust button
Enable to modify tangents on either side of the selected vertex automatically. Press G to temporarily enable or disable during a gestural operation.
Equal Length button
Enable to set tangents on either side of vertices to be the same length (based on the proximity to the next vertex).
Lasso Fit button
Set the tolerance for the number of points in the segments of the mask if it was drawn freehand.