Tool Palettes > Surface Edit > Trim > Trim surface

Surface Edit > Trim > Trim surface

Trims or splits surfaces using curves-on-surface.

See Trim a surface

See Project a sketch for fast design label mapping

See Troubleshooting trimmed surfaces

3D Trimming

If this box is checked, you can select curves to project onto the surface while within the tool. If it is unchecked (default), this capability is removed.

Projection History

If this box is checked, the projected curves will have construction history. Editing or transforming the curves and surfaces will cause the projection and trim operations to be re-executed.

This option is only available if 3D Trimming is turned on.

Project Normal

If this box is checked, the curve is projected onto each point on the surface along the normal at that point. If unchecked (default), the curve is projected along the view vector (in both the orthographic and perspective windows).

This option is only available if 3D Trimming is turned on.

Chain Select

If this box is checked, selecting a curve to project also selects all other curves that are tangent continuous with it.

> Display Options

Show Intersections

If this box is checked, green locators indicate the intersections between the trim curves, and between the trim curves and trim surfaces. Yellow locators indicate trim curve endpoints that do not intersect any other curve-on-surface or trim surface edge.

Region Selector U Size/V Size

The relative size of the trim region selectors in the U and V parametric directions on the surface. Adjust these sliders if the selectors (crosses) appear too small or too large on your model. The values range from 0.01 to 2.0.

The Shrink Surface option has been replaced by a plug-in called shrinkToTrim which can be loaded through Utilities > Plug-in Manager . shrinkToTrim shrinks the underlying surface's UV parameters to cover only the visible (non-trimmed) parts of the surface. This functionality is useful when applying label-style textures to the surface.