User Manual

Selecting and Adjusting Polylines
To create the shape you need for a mask or a motion path, you need to know how to manipulate
the splines. Fusion provides a number of simple techniques for selecting, moving, and
smoothing a spline, but also includes more complex adjustment techniques for scale, skewing,
and twisting a spline.
Polyline Points Selection
To select one or more control points on a polyline, do one of the following:
 Click directly on the control points.
 Lasso around the points.
To add or remove points from the current selection, do one of the following:
 Hold the Shift key to select a continuous range of points.
 Hold Command and click each control point you want to add or remove.
 Press Command-A to select all the points on the active polyline.
TIP: Once a control point is selected, you can press Page Down or Page Up on the
keyboard to select the next control point in a clockwise or counterclockwise rotation.
This can be very helpful when control points are very close to each other.
Moving Polyline Points
The selected polyline points can be moved using either the keyboard or the mouse.
To move selected control points using the pointer, do one of the following:
 Drag on the selected points anywhere in the viewer.
 Hold Shift while dragging to restrict movement to a single axis.
 Hold Option and drag anywhere in the viewer to move the selected control point.
To move selected control points using the keyboard, do one of the following:
 Press the Up or Down Arrow keys on the keyboard to nudge a point up or down in the
viewer.
 Hold Command-Up or Down Arrow keys to move in smaller increments.
 Hold Shift-Up or Down Arrow keys to move in larger increments.
Smoothing a Polyline Segment
If you want to shape the polyline and control its slope, you can choose to smooth a spline
segment by adjusting the Bézier direction handles.
To smooth the selected points on an active polyline, do one of the following:
 Press Shift-S.
 Click the Smooth button on the Polyline toolbar.
 Choose Smooth from the polyline’s contextual menu.
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