htm.core

Class Domain

java.lang.Object

htm.core.Domain

public class Domain
extends Object

A Domain manages a list of Convexes. This is the data structure that can define any area on the sphere. With the intersect method, the htm index returns the trixels that intersect with the area specified by the current Domain instance. There are two lists returned: one for the nodes fully contained in the area and one for the triangles which lie only partially in the domain.

  Current Version
  ===============
  ID:   $Id: Domain.java,v 1.2 2003/02/19 15:46:11 womullan Exp $
  Revision:     $Revision: 1.2 $
  Date/time:    $Date: 2003/02/19 15:46:11 $
 

Field Summary

Fields

Modifier and Type	Field and Description
(package private) List	convexes_
protected int	olevel

Constructor Summary

Constructors

Constructor and Description
Domain() Default constructor

Method Summary

Modifier and Type	Method and Description
void	add(Convex c) Add a convex
void	add(Domain d) Add all convexces of given domain to this one - simple union
void	clear() Clear domain, empty convex list
boolean	contains(Vector3d p)
Convex	getConvex(int i) Fetch the convex number i
int	getNumberOfConvexes() Return the number of convexes in this domain
int	getOlevel()
boolean	intersect(HTMindexImp idx, HTMrange range, boolean varlen) Intersect with index.
void	setOlevel(int lev)
Domain	simplify()
String	toString() Convert domain to a string.

Methods inherited from class java.lang.Object

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

Field Detail

convexes_

List convexes_

olevel

protected int olevel

Constructor Detail

Domain

public Domain()

Default constructor

Method Detail

setOlevel

public void setOlevel(int lev)

getOlevel

public int getOlevel()

add

public void add(Convex c)

Add a convex

intersect

public boolean intersect(HTMindexImp idx,
                         HTMrange range,
                         boolean varlen)

Intersect with index. Return the range set of the nodes that are intersected by this domain. setting varlen true makes this adaptive giving HTM ranges of different levels suiting the shape of the area.

getConvex

public Convex getConvex(int i)

Fetch the convex number i

getNumberOfConvexes

public int getNumberOfConvexes()

Return the number of convexes in this domain

toString

public String toString()

Convert domain to a string. This string can be written into a file and can recover the domain using the legacy parser.

Overrides:

toString in class Object

clear

public void clear()

Clear domain, empty convex list

simplify

public Domain simplify()

contains

public boolean contains(Vector3d p)

add

public void add(Domain d)

Add all convexces of given domain to this one - simple union