jdsl.geomobj.api
Interface GeomConstructor2D

All Known Implementing Classes:

GeomConstructor2DImpl

public interface GeomConstructor2D

A collection of methods that construct geometric objects. The parameters of all the methods are interfaces.

Version:

$Id: GeomConstructor2D.java,v 1.2 2000/03/20 23:18:23 lv Exp $

Author:

Luca Vismara (lv)

Method Summary

GeomObject2D	intersectionGeomObject(LinearCurve2D lc1, LinearCurve2D lc2)
Point2D	midPoint(Point2D p1, Point2D p2)
Line2D	perpendicularLine(LinearCurve2D lc, Point2D p)
Ray2D	perpendicularRay(LinearCurve2D lc, Point2D source)

Method Detail

midPoint

public Point2D midPoint(Point2D p1,
                        Point2D p2)
                 throws InvalidPointException

Parameters:

p1 - a point

p2 - a point

Returns:

the point equidistant from p1 and p2

Throws:

InvalidPointException - if either p1 or p2 is Point2D.INFINITE

intersectionGeomObject

public GeomObject2D intersectionGeomObject(LinearCurve2D lc1,
                                           LinearCurve2D lc2)

Parameters:

lc1 - a linear curve

lc2 - a linear curve

Returns:

the intersection of lc1 and lc2, either a point or a linear curve or GeomObject2D.NONE

perpendicularLine

public Line2D perpendicularLine(LinearCurve2D lc,
                                Point2D p)
                         throws InvalidPointException

Parameters:

lc - a linear curve

p - a point

Returns:

the line perpendicular to lc and passing through p

Throws:

InvalidPointException - if p is Point2D.INFINITE

perpendicularRay

public Ray2D perpendicularRay(LinearCurve2D lc,
                              Point2D source)
                       throws InvalidPointException

Parameters:

lc - a linear curve

source - the source of the ray

Returns:

the ray perpendicular to lc and emanating from source

Throws:

InvalidPointException - if source is Point2D.INFINITE