Filters for Point Movement
Set a point move filter to control how the selected points move when you modify the active point. In the following cases, the first point on the right is dragged upward.
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Constant—The selected points move an equal amount.
Constant—The selected points move an equal amount.
• 
Linear—The selected points drop off linearly in relation to the distance from the dragged point.
Linear—The selected points drop off linearly in relation to the distance from the dragged point.
• 
Smooth—The selected points drop off quadratically in relation to the distance from the dragged point.
Smooth—The selected points drop off quadratically in relation to the distance from the dragged point.