FillSrf

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Fill Surface

The FillSrf command creates a single surface to fill a closed boundary of curves or edges with specified continuities.

Steps

  1. Select curves, surface edges, or point objects, press Enter when done.

    The output surface cannot be trimmed if the input objects do not form a closed boundary.

  2. Click the left or right mouse button on the dots on the input objects to cycle continuity forward or backward.

  3. Set options.

FillSrf Options

Constraints

Click this button to add or remove curves or edges used to define the boundary and interior shapes of the surface.

Stiffness

Controls the roundness and flatness of the surface shape. Higher values produce flatter shapes.

  • Double-click the slider to enter a specific number.

 

Degree

Sets the UV degrees of the surface from 3 to 5.

Domain
Untrimmed

Creates an untrimmed surface.

  • This option is only available when the input segments on the boundary can be merged into four smooth segments.

Projected

 

Molded

 

Trim Ends

 

Refine

Uses more UV spans to better fit the surface to the input edges or curves.

Preview

Displays an interactive preview of the surface before it is created.

UV Control

UV Rotation

Rotates the UV directions of the surface up to 90 degrees.

  • Double-click the slider to enter a specific number.

U Spans / V Spans

Sets the initial number of isocurves along the U or V direction.

  • Turning on the Refine setting adjusts the isocurve density to meet the specified tolerances.

Starting Surface

Pick an existing surface that will be pulled to fill the boundary.

  • The output surface will have an identical parameter structure to the starting surface.

  • Using a starting surface allows you to create a surface with a degree higher than 5.

Tolerances

Distance

Controls position matching accuracy.

Angle

Controls tangency matching accuracy.

Internal

Controls the matching accuracy to internal curves or points.

Constraints test results

These labels use different colors to indicate whether the resulting surface meets the requested tolerances of Int (internal), G0 (Position), G1 (Tangency), and G2 (Curvature).

Gray - Not being requested.

Red - The requested continuity fails the tolerance check.

Green - The requested continuity passes the tolerance check

To edit the output surface

  1. Double-click the output surface.

  2. Add more remove curves or edges, press Enter.

  3. Adjust the options.

See also

Patch

Fit a surface through curves and point objects.