Purpose

Draw a series of connected line segments.

Syntax

GRAPHIC POLYLINE points [, rgbColor&]

Remarks

The Coordinates are specified in Page Units. Line width can be set using GRAPHIC WIDTH. If line width is set to 1 (the default), the line style can be set with GRAPHIC STYLE. GRAPHIC POLYLINE neither uses, nor updates, the last point referenced (POS).

Windows graphic conventions consider the final x and y coordinates to be exclusive. Therefore, by default, the final pixel is not drawn unless Overlap Mode is enabled. See GRAPHIC SET OVERLAP for details.

points

User-defined type that defines the number of vertices and the location of each. There must be at least two, and no more than 1024 vertices. The first member is a long integer point count, followed directly by the appropriate number of single precision floats to specify the actual coordinates. Floating point coordinates are required, because of the possibility of their use as world coordinates with SCALE. You can use a type with a scalar list, like this:

TYPE PolyPoints

 count as long

 x1 as single

 y1 as single

 x2 as single

 y2 as single

 x3 as single

 y3 as single

END TYPE

Or, you can create an array using point types, like this:

TYPE PolyPoint

 x as single

 y as single

END TYPE

TYPE PolyArray

 count as long

 xy(1 TO 3) as PolyPoint

END TYPE

rgbColor&

Optional RGB color of the polyline. If omitted (or -1), the color defaults to the current foreground color.

See also

Built In RGB Color Equates, GRAPHIC ARC, GRAPHIC ATTACH, GRAPHIC BOX, GRAPHIC COLOR, GRAPHIC ELLIPSE, GRAPHIC LINE, GRAPHIC POLYGON, GRAPHIC SET OVERLAP, GRAPHIC STYLE, GRAPHIC WIDTH