Extrapolating Geometry

Extrapolating Surfaces

Extrapolate lets you extrapolate a surface at one or several boundaries.


Before you begin: Create a 3D shape containing a surface.
  1. Pause over a boundary in the work area.

    The command automatically computes the geometrically feasible surface(s) that can be extrapolated.

  2. In the Type list, select the extrapolation type.
  3. In the Continuity list, select Tangent.
    The selected surface and the extrapolation are connected with tangent continuity.
  4. In the Continuity list, select Curvature.
    The selected surface and extrapolation are connected with curvature continuity.
  5. Optional: To activate the approximate boundaries modem clear the Exact boundaries check box.

    This mode allows a more tolerant approach of the skin border reconstruction.

  6. In the Extremities list, select the extremities conditions between the extrapolated surface and the support surface.
    • Tangent: The extrapolation sides are tangent to the edges adjacent to the surface boundary.
    • Normal: The extrapolation sides are normal to the original surface boundary.
  7. In the Propagation list, select the propagation mode.
  8. Click OK.