The PLACE POINT STRING key-in is used to define point string elements. A point string element consists of a number of vertices with orientations defined at each vertex. They are useful in specialized applications that need to specify orientations as well as point locations, such as a “walk through”.

Point strings can be defined as either continuous or disjoint. Continuous point strings are displayed with lines connecting the vertices. Disjoint point strings are displayed as a set of discrete points.