Class Vertex

java.lang.Object
  Point
      Vertex

public class Vertex
extends Point

A 3-dimensioal vertex used to construct polyhedra in the spirit of O'Rourke, _Computational Geometry in C_. Note that all field access is public, for convenience.

Field Summary

Edge	duplicate incident cone edge (or null)
boolean	mark T iff point already processed
boolean	onhull T iff point on hull
int	vnum unique id

Constructor Summary

Vertex(double x, double y, double z, int vnum)
Constructor for a 3D Point.

Method Summary

java.lang.String	toString() Format the point.
java.lang.String	toString(java.lang.String df) Format the point using a hint.

Methods inherited from class Point

area2, between, collinear, collinear3, coord, dimension, distanceL1, distanceL2, distanceL2squared, intersect, intersectProp, left, leftOn, volume6

Methods inherited from class java.lang.Object

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

Field Detail

vnum

public int vnum

unique id

duplicate

public Edge duplicate

incident cone edge (or null)

onhull

public boolean onhull

T iff point on hull

mark

public boolean mark

T iff point already processed

Constructor Detail

Vertex

public Vertex(double x,
              double y,
              double z,
              int vnum)

Constructor for a 3D Point.

Parameters:

x - the x-coordinate

y - the y-coordinate

z - the z-coordinate

vnum - a unique identifier (usually an index into an array)

Method Detail

toString

public java.lang.String toString(java.lang.String df)

Format the point using a hint.

Overrides:

toString in class Point

Parameters:

df - the format to be used for a single coordinate

toString

public java.lang.String toString()

Format the point.

Overrides:

toString in class Point