Although there are multiple variations of 2D geometric objects which can be input into the editor, these roughly fall into two categories :

• 2D Line geometry, including Smart Objects, such as polygons, rectangles which allow multi-line objects to be drawn either as single or polylines.
• 2D Radial geometry, including splines and curves.

2D sketch objects are referred to as Curves and can be used to produce a detailed 2D drawing. Curves also form the basis of most solid 3D construction and are frequently referred to as profiles.