- Sketch
When you open a new part document, first you create a sketch. The sketch is the basis for a 3D model. You can create a sketch on any of the default planes (Front Plane, Top Plane, and Right Plane), or a created plane.
- Sketch Settings Menu
- Using No Solve Move
No Solve Move 
lets you move sketch entities without solving the dimensions or relations in the sketch.
- Sketch Complexity
- Working in a Sketch
- Inferencing
Inferencing displays relations by means of dotted inferencing lines, pointer display, and highlighted cues such as endpoints and midpoints.
- Sketch Modes
There are two modes for sketching in 2D: click-drag or click-click.
- Autotransitioning
You can transition from sketching a line to sketching a tangent arc, and vice versa, without selecting the arc tool.
- Shaded Sketch Contours
You can use the Shaded Sketch Contours setting to view closed sketch contours and sub-contours as shaded entities. You can drag, resize, and apply relations to shaded sketch contours.
- Extruding Shaded Sketch Contours
- Selecting Contours
Select sketch contours and model edges, and apply features to them. This allows you to use a partial sketch to create features.
- Exiting Sketches
You exit a sketch when you create a feature from a sketched profile. For example, when you extrude a base, boss, or a cut from a sketch.
- Snaps
- Sketch Options
- Sketch Entities
- Sketch Tools
- Blocks
- Splines
The SOLIDWORKS software supports two types of splines, B-splines and style splines.
- 3D Sketching
- Dimensions and Relations