15_simple_geometric_objects: Simple Geometric Objects.

In vectools: Advanced Vector Toolkit

Description

Points, lines, polygons and text, as S4 objects.

These can be plotting using either the base or grid graphics systems.

NOTE:
INTERNAL STRUCTURE OF OBJECTS IS SUBJECT TO CHANGE.
DO NOT USE SLOTS, DIRECTLY.

Usage

Points (x, y, z=NULL, ..., glist = list () )
Line (x, y, z=NULL, ..., glist = list () )
Polygon (x, y, z=NULL, ..., glist = list () )
Text (text, x, y, z=NULL, ..., glist = list () )

as.Points (v, ...)
as.Line (v, ...)
as.Polygon (v, ...)

Arguments

x, y, z	Equal length numeric vectors, giving coordinates. If z missing, a 2d object, otherwise, a 3d object.
v	Currently, a two or three column matrix.
text	A character vector of labels. x, y and z, need to be the same length.
glist	Argument list for plotting functions.
...	Ignored.

Value

Each function returns an S4 object with the corresponding class name.
e.g. Line returns a Line object.

See Also

Grid, VImage

regPolygon

Examples

plot (Points (1:4, 1:4) )

vectools documentation built on June 7, 2021, 9:08 a.m.