Use a curve to specify points to trim,
detach, or insert on a group of curves or curves-on-surface all
at once.
The Curve
section tool lets you:
- Define points on a group of curves at:
- Intersections with a free curve, surface,
reference plane or construction plane.
- Specific parameters.
- Specific distances from their endpoints.
- Then use these points to do one of the
following:
- Trim the curves.
- Detach the curves.
- Insert edit points.
- Create a curve that passes through the
intersections.
Slice a group of curves
at their intersections with a sectioning curve or surface
- Choose Curve Edit > Curve Section
❒.
- Do one of the following:
- To trim the curves, set the Sectioning
Mode to Trim.
- To detach the curves, set the Sectioning
Mode to Segment.
- To insert edit points on the curves,
set the Sectioning Mode to Slice and
the Slice Creation Mode to Insert
Edit Points.
- To create a new curve that passes through
the intersections, set the Sectioning Mode to Slice and
the Slice Creation Mode to Create
Curve.
- Set the Sectioning Criterion to Geometry,
then click Go.
- Pick the curves or curves-on-surface
you want to trim, in the view window where the curves and the sectioning
curve/surface intersect.
For
trims, click the part of the curve you want to keep. Red arrows
show the “kept” part of the curve.
- Click Go.
- Click the curve, surface, or construction
plane that you want to section with.
Section a group of curves
based on parameter or distance
- Choose Curve Edit > Curve Section ❒.
- Do one of the following:
- To trim the curves, set the Sectioning
Mode to Trim.
- To detach the curves, set the Sectioning
Mode to Segment.
- To insert edit points on the curves,
set the Sectioning Mode to Slice and
the Slice Creation Mode to Insert
Edit Points.
- To create a new curve that passes through
the intersections, set the Sectioning Mode to Slice and
the Slice Creation Mode to Create
Curve.
- Set the Sectioning Criterion:
- To section each curve at a specific parameter,
set the criterion to Point.
- To section each curve at a specific length,
set the criterion to Distance.
- Click Go.
- Pick the curves or curves-on-surface
you want to trim.
For
trims, click the part of the curve you want to keep. Red arrows
show the “kept” part of the curve.
Green locators show the current sectioning point
for each curve.
- Do any of the following:
- Drag the green locators to change the
sectioning point on a curve, or click a locator and type an exact
value.
- Click a locator to see the corresponding
parameter/distance on the prompt line.
- Click Go.
TipAfter
the Trim/Segment/Slice operation, locators reappear on each curve
segment. Drag them to another location if you want to continue sectioning,
or choose another tool.
What if...?
Curves that should slice
don’t, or vice versa?
- If you pick the curves to section in
an orthographic windows, the intersections are visual. That is,
where the curves appear to cross in the view window.
- Remember to pick the curves in the orthographic
view where they cross the sectioning curve or surface.
- If you pick the curves to section in
a perspective window, the intersections are exact. The curves must
actually intersect the sectioning curve or surface in space.
