ProGAL.geom2d

Class ApolloniusSolver

java.lang.Object

ProGAL.geom2d.ApolloniusSolver

public class ApolloniusSolver
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ApolloniusSolver()

Method Summary

Modifier and Type	Method and Description
static Circle	solveApollonius(Circle c1, Circle c2, Circle c3, int s1, int s2, int s3) Solves the Apollonius problem of finding a circle tangent to three other circles in the plane.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ApolloniusSolver

public ApolloniusSolver()

Method Detail

solveApollonius

public static Circle solveApollonius(Circle c1,
                                     Circle c2,
                                     Circle c3,
                                     int s1,
                                     int s2,
                                     int s3)

Solves the Apollonius problem of finding a circle tangent to three other circles in the plane. The method uses approximately 68 heavy operations (multiplication, division, square-roots).

Parameters:

c1 - One of the circles in the problem

c2 - One of the circles in the problem

c3 - One of the circles in the problem

s1 - An indication if the solution should be externally or internally tangent (-1/+1) to c1

s2 - An indication if the solution should be externally or internally tangent (-1/+1) to c2

s3 - An indication if the solution should be externally or internally tangent (-1/+1) to c3

Returns:

The solution to the problem of Apollonius.