Extrapolating Curves

You can extrapolate or shorten existing vector curves.

Before you begin: Create a vector curve.
  1. From the Traces section of the action bar, tap Extrapolation .
    Options are available in the Graphic Properties frame at the right of the screen.
  2. Optional: Set your Trace options as desired.
    OptionDescription
    Opacity (%) Drag the slider or edit the value to define the opacity of the curve (as a percentage).
    Thickness (mm) Drag the slider or edit the value to define the curve thickness.
    Note: You can set your trace options at any time while tracing.
  3. Tap an endpoint of the curve you want to extrapolate.
    Note: You can freeze the selection by tapping the curve and unfreeze it either by tapping another curve or by tapping anywhere on the screen.
  4. Perform either of the following operations:
    • Trace away from the curve to extrapolate it. A linear extrapolation is performed, following the tangent of the existing curve.
    • Trace toward the curve to shorten it.

The extrapolation is finalized when you lift the pen or release the pointer.

Note: The number of points is automatically computed. You can right-tap the curve and modify the precision, using either the slider or entering a value in the Precision box. The higher the number of points, the higher the precision.

You can also locally activate or deactivate the auto-match by tapping , whatever the option set in Natural Sketch: General.