6.9  dc-path%

A path is a set of figures defined by curves. A path can be used with the draw-path method of a dc<%> object to draw the path's curves as lines, fill the region bounded by the path's curves, or both. A path can also be used with the set-path method of a region% object to generate a region bounded by the path's curves.

A path consists of zero or more closed sub-paths, and possibly one open sub-path. Some dc-path% methods extend the open sub-path, some dc-path% methods close the open sub-path, and some dc-path% methods add closed sub-paths.

When a path is drawn as a line, a closed sub-path is drawn as a closed figure, analogous to a polygon. An open sub-path is drawn with disjoint start and end points, analogous lines drawn with draw-lines in dc<%>.

When a path is filled or used as a region, the open sub-path (if any) is treated as if it were closed. The content of a path is determined either through the 'even-odd rule or the 'winding rule, as selected at the time when the path is filled or used to generate a region.

• (make-object dc-path%) -> dc-path% object

  Creates a new path that contains no sub-paths (and no open sub-path).

  
  

Methods
    append
    arc
    close
    curve-to
    ellipse
    get-bounding-box
    line-to
    lines
    move-to
    open?
    rectangle
    reset
    reverse
    rotate
    rounded-rectangle
    scale
    translate