This section includes only the simplest primitives most commonly used as structure elements.
Polymark : is produced by the ppolymarker (2D primitive) or ppolymarker3 (3D primitive) function
and generates a marker (a ., or a *, etc.) at each point on the list of points given as function parameters.
and generates a series of straight segments joining the points on the list of points given as function parameter, in the order in which they are entered.
and is used to define a closed, planar fill area, and to fill it with a plain color, cross-hatching, or pattern. The list of points given as function parameter defines the outside contour of the fill area.
and is used to define a list of closed, coplanar fill areas, and to fill them with plain colors, cross-hatching, or patterns. The fill areas may be separate or one inside the other. The list of lists of points given as function parameter defines the set of outside contours of the fill areas.
and generates a character string either in the 2D plane, or in any plane in 3D space (for the ptext3 primitive).
