Edits a spline or spline-fit
Ribbon: Home tabModify
SplineNot available on the ribbon in
the current workspace
Shortcut menu: Right-click
a selected spline, and click Spline Edit.
Modifies a spline’s definition, such as the
number and weight of control vertices, the fit tolerance, and the
start and end tangents.
When you select a spline object or spline-fit
polyline, grips appear at the control vertices.
Fit data consists of all fit points, the fit
tolerance, and tangents associated with splines created with the SPLINE command.
A spline can lose its fit data if you
- Use the Purge option while editing fit
- Refine the spline by elevating the order,
adding or deleting a control vertex, or changing the weight of a
- Change the fit tolerance
- Move a control vertex
- Trim, break, stretch, or lengthen the
converts spline-fit polylines to splines even if you immediately
exit SPLINEDIT after selecting the spline-fit polyline.
List of Prompts
The following prompts
Enter an option [Close/Join/Fit
Switches between Close and Open, depending on
whether the selected spline is closed.
Closes an open spline and makes it tangentially continuous
(smooth) at its endpoints. If the spline's start point and endpoint
are the same, this option makes the spline tangentially continuous
at both points.
Opens a closed spline. If the spline's start
point and endpoint were the same before using the Close option,
the spline is returned to its original state. The start point and
endpoint remain the same but, lose their tangential continuity (smoothness).
If the spline was open (its start point and endpoint
were not the same) before using the Close option the spline is returned
to its original open state and tangential continuity is removed.
Selected splines, lines,
and arcs are joined to existing splines at coincident endpoints.
After a valid object is selected, it is joined to the current spline
with a kink at the join point.
Edits fit data using the following options:
Enter a fit data option:
Adds fit points to a spline.
When you select a point, SPLINEDIT highlights it
and the next point and interprets the new point to go between the
highlighted points. Selecting the last point on an open spline highlights
only that point, and SPLINEDIT adds the new point after the last.
If you select the first point on an open spline, you have the option
of placing the new point before or after the first point.
The point is added, and the spline is refitted through
the new set of points.
Removes fit points from a spline and refits
the spline through the remaining points.
Adds a knot and fit point
at the selected point on the spline.
Moves fit points to a new location.
Moves the selected point to the specified location.
Moves selection to the next point.
Moves selection to the previous point.
Selects a point from the set of fit points.
Removes a spline's fit data from the drawing database.
After purging the spline's fit data, the main SPLINEDIT prompt is
displayed without the Fit Data option.
Edits the start and end tangents of a spline.
If the spline is closed, the prompt becomes
Specify Tangent or [System Default].
The System Default option calculates the default end
You can specify a point or use the Tangent or Perpendicular
object snap mode to make the spline tangential or perpendicular
to existing objects.
Refits the spline to the existing points with
new tolerance values.
Returns to the main SPLINEDIT prompt.
Fine-tunes a spline definition. The following prompts
Enter a vertex editing
Increases the number of control vertices that control
a portion of a spline.
SPLINEDIT adds a new control vertex close to the
point you select, between the two control vertices affecting that
portion of the spline.
Decreases the number
of control vertices that define the spline.
Increases the number of control vertices on
Entering a value greater than the current value increases
the number of control points uniformly across the spline for more
localized control. The maximum value is 26.
Relocates a spline's control vertices and purges the
Changes the weight at various control vertices. A
larger weight value pulls the spline closer to the control vertex.
Recalculates the spline based on the new weight value
at the selected control point. The larger the integer value, the
more the spline is pulled toward the control point.
Returns to the main SPLINEDIT prompt.
Convert to Polyline
Converts the spline to
The precision value determines
how accurately the resulting polyline is to fit to the source spline.
Valid values are any integer between 0 and 99.
NoteA high precision
value may cause performance problems.
The PLINECONVERTMODE system
variable determines whether the polylines are created with linear
or arc segments.
The conversion in both
PEDIT and SPLINEDIT will obey the DELOBJ system
Reverses the spline's direction. This option
is intended primarily for third-party applications.
Cancels the last editing action.