> Sketching > Splines > Editing Splines

Introduction

Administration

User Interface

SolidWorks Fundamentals

Design Studies in SolidWorks

Drawings and Detailing

Sketch - Getting Started

Sketch Settings Menu

Sketch - How Complex?

Adding Controls to Splines

Editing Splines

Editing Options with Two Point Splines

Insert Spline Point

Curvature Combs

Dimensioning to Spline Handles

Editing Splines

3D Sketching

Dimensions and Relations

Sustainability Products

Editing Splines

To edit 2d or 3D splines:

Drag spline points		Enables you to make quick adjustments to the shape of the spline, but you sacrifice precision.
Drag handles on the control polygon		Affords precision and speed, but spline point data does not update, and you cannot select between symmetrical or asymmetrical weighting control.
Select spline handles and manipulate specific handles		Provides the greatest precision and feedback through the data displayed in the Spline PropertyManager under Parameters. This requires more time than the two other methods.

To edit splines:

Select a spline or a spline point to edit any of the following:

Spline points: Select and drag a spline point to display the Point PropertyManager.
As you drag the spline point, the value for X Coordinate , Y Coordinate , and Z Coordinate (3D splines) changes.
Control polygon handles: Select and drag a control polygon handle to display the Spline Polygon PropertyManager.
As you drag a control polygon handle, the value for X Coordinate , Y Coordinate , and Z Coordinate (3D splines) changes.

Spline handles: In the Spline PropertyManager, under Parameters:

Select Tangent Driving (or modify the tangent radial direction using the spline handles) .

Use any of the handles listed below to manipulate the spline point shown identified as Spline Point Number

Handles	Operation	Results
	Drag either circular handle to control both tangent weighting and direction (vector) asymmetrically.	Under Parameters, updates values for: Tangent Weighting 1 and Tangent Weighting 2 . Tangent Radial Direction . In 3D splines, this affects Tangent Polar Direction .
	Press Alt and drag either circular handle to control both tangency weight and direction (vector) symmetrically.	Updates the same values as above to both sides of the spline point.

	Drag either arrow head handle to control tangency weight asymmetrically.	Under Parameters, updates values for: Tangent Weighting 1 and Tangent Weighting 2 In 3D splines, this affects Tangent Polar Direction .
	Press Alt and drag either arrow head handle to control tangency weight symmetrically.	Updates the same values as above to both sides of the spline point.

	Drag either diamond handle to control tangency direction (vector). Tangency is applied symmetrically to the spline point.	Under Parameters, updates values for Tangent Radial Direction .

Limitations exist with periodic splines. Some combinations of dimensions and constraints, such as Fix and Horizontal , may prevent controlling tangent weighting asymmetrically.

Examine the results, and if necessary, under Parameters:
- Click Reset This Handle to return the spline handle to its original state.
- Click Reset All Handles to return all spline handles to their original state.
- Click Relax Spline to re-parameterize (smooth) the shape.

Search 'Editing Splines' in the SOLIDWORKS Knowledge Base.

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