vertices(3u) [debian man page]

Vertices(3U)						    InterViews Reference Manual 					      Vertices(3U)

NAME

       Vertices - abstract base class for graphics defined by a set of coordinate pairs

SYNOPSIS

       #include <Unidraw/Graphic/verts.h>

DESCRIPTION

       Vertices is an abstract base class for graphics such as polygons and splines whose geometry is specified by a set of coordinate pairs.  The
       Vertices class supports vertex-related operations common to all such graphical objects and also supports extent caching.

PUBLIC OPERATIONS

       virtual ~Vertices()
	      The destructor deallocates the list of coordinate pairs stored in the graphic.

       virtual int GetOriginal(const Coord*& x, const Coord*& y)
	      Return pointers to the arrays of Coords stored internally that define the graphic's vertices.  GetOriginal's return  value  reflects
	      the size of the arrays.

       virtual boolean operator == (Vertices&)
       virtual boolean operator != (Vertices&)
	      Compare this to the given Vertices instance and return whether they (do not) store identical sets of vertices.

PROTECTED OPERATIONS

       Vertices(Graphic* = nil)
       Vertices(Coord* x, Coord* y, int count, Graphic* = nil)
	      The  constructors are protected to disallow instantiation of the abstract class.	Subclasses can pass a set of vertices to copy into
	      internal storage and an optional graphic from which to obtain an initial set of graphics state.  Vertices  itself  stores  no  addi-
	      tional graphics state over that in the Graphic base class.

       void s_getExtent(
	   float&, float&, float&, float&, float&, Graphic*
       )

       void f_getExtent(
	   float&, float&, float&, float&, float&, Graphic*
       )
	      Helper  functions  that return extent information based on the bounding box that the vertices define.  s_getExtent returns an extent
	      that accounts for the width of a brush, as would be necessary if the vertices defined a stroked path, while f_getExtent assumes that
	      the  vertices  define the graphic's extremities, as would be the case if the vertices defined a filled path.  These operations cache
	      the extent they compute initially.

SEE ALSO

       Graphic(3U)

Unidraw 							  2 February 1991						      Vertices(3U)

Check Out this Related Man Page

lines(3U)						    InterViews Reference Manual 						 lines(3U)

NAME

       Point, Line, MultiLine, S_MultiLine, SF_MultiLine - structured graphics classes for points, lines, and open polygons

SYNOPSIS

       #include <Unidraw/Graphic/lines.h>

DESCRIPTION

       Point  and  Line  are subclasses of Graphic that draw a point and a line, respectively.	MultiLine is a Vertices subclass that serves as an
       abstract base class for open polygons: S_MultiLine is a MultiLine subclass for stroked open polygons,  while  SF_MultiLine  is  a  stroked-
       filled open polygon.  Point, Line, and S_MultiLine store a PSBrush, while SF_MultiLine also stores a PSPattern.

POINT PUBLIC OPERATIONS

       Point(Coord x, Cord y, Graphic* = nil)
	      Construct a Point object, optionally supplying a graphic from which to obtain an initial set of graphics state.

       void GetOriginal(Coord&, Coord&)
	      Return the coordinates supplied in the constructor.

LINE PUBLIC OPERATIONS

       Line(Coord x0, Cord y0, Coord x1, Coord y1, Graphic* = nil)
	      Construct a Line object, optionally supplying a graphic from which to obtain an initial set of graphics state.

       void GetOriginal(Coord& x0, Coord& y0, Coord& x1, Coord& y1)
	      Return the line's endpoints as supplied in the constructor.

MULTILINE PROTECTED OPERATIONS

       MultiLine(Coord* x, Coord* y, int count, Graphic* = nil)
	      MultiLine's constructor is protected to prevent instantiation of the abstract base class.  The parameters are passed directly to the
	      Vertices constructor.

S_MULTILINE PUBLIC OPERATIONS
       S_MultiLine(Coord* x, Coord* y, int count, Graphic* = nil)
	      Construct an S_MultiLine object, optionally supplying a graphic from which to obtain an initial set of graphics state.

SF_MULTILINE PUBLIC OPERATIONS
       SF_MultiLine(Coord* x, Coord* y, int count, Graphic* = nil)
	      Construct an SF_MultiLine object, optionally supplying a graphic from which to obtain an initial set of graphics state.

SEE ALSO

       Graphic(3U), Vertices(3U), pspaint(3U)

Unidraw 							  2 February 1991							 lines(3U)

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vertices(3u) [debian man page]

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