org.vrspace.server
Class Transform

java.lang.Object
  java.util.Observable
      org.vrspace.server.VRObject
          org.vrspace.server.DBObject
              org.vrspace.server.PublicDBObject
                  org.vrspace.server.OwnedDBObject
                      org.vrspace.server.Transform

All Implemented Interfaces:

java.lang.Cloneable, Owned

public class Transform

extends OwnedDBObject

Transform is basic object used to build the scene. This is a point in space containing other objects, and transformations applied to them. Concept taken from VRML97
NOTE: all fields are public, to enable the database storage. What are security implications?

See Also:

Scene

Field Summary

boolean	active Transform is active by default.
double	angle
double[]	bBoxCenter bounding box center.
double[]	bBoxSize object's max size, starting from the bBoxCenter
ID[]	members list of objects on this point in space
java.lang.String	name name
boolean	permanent hint to scene manager: permanent Transform members are always displayed.
double	rotx
double	roty
double	rotz
double[]	scale
double	x
double	y
double	z

Fields inherited from class org.vrspace.server.DBObject

db

Fields inherited from class org.vrspace.server.VRObject

db_id, primitiveMap, primitives

Constructor Summary

Transform()

Transform(double x, double y, double z)
New transoform at x,y,z coordinates

Method Summary

void	addMember(VRObject obj) Adds obj to this Transform.
VRObjectComparator	comparator() Returns a comparator
boolean	contains(VRObject obj) True if obj is member of this Transform
VRObject[]	getChildren() returns all members of this transform
double	getDistance(double x, double y, double z) calculates distance to the specified point
double	getDistance(Transform t) calculates distance to the specified transform
void	removeMember(VRObject obj) Removes obj from this Transform.
void	set_bBoxCenter(double x, double y, double z) sets bounding box center
void	set_bBoxSize(double x, double y, double z) sets bounding box size
void	set_rotation(Request req, java.lang.String args)
void	set_scale(Request req, java.lang.String args)
void	set_translation(Request req, java.lang.String args)

Methods inherited from class org.vrspace.server.OwnedDBObject

addOwner, isOwned, notifyOwners, ownershipRequired, processEvent, removeOwner, sendEvent

Methods inherited from class org.vrspace.server.PublicDBObject

setValue

Methods inherited from class org.vrspace.server.DBObject

delete, get, put, put

Methods inherited from class org.vrspace.server.VRObject

arrayToString, canRead, canWrite, clone, equals, fieldToText, fromString, fromText, getClassName, getField, getFields, getId, getID, getMemebers, hasField, hasMethod, isNew, newInstance, sendResponse, setField, setField, setField, setFields, setFields, stringToArray, toString, toText, toText, toText

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

name

public java.lang.String name

name

permanent

public boolean permanent

hint to scene manager: permanent Transform members are always displayed. Permanent by default.

active

public boolean active

Transform is active by default. Inactive Transforms are not added to the scene by scene manager

x

public double x

y

public double y

z

public double z

members

public ID[] members

list of objects on this point in space

rotx

public double rotx

roty

public double roty

rotz

public double rotz

angle

public double angle

scale

public double[] scale

bBoxCenter

public double[] bBoxCenter

bounding box center. Approximately object's center

bBoxSize

public double[] bBoxSize

object's max size, starting from the bBoxCenter

Constructor Detail

Transform

public Transform()

Transform

public Transform(double x,
                 double y,
                 double z)

New transoform at x,y,z coordinates

Method Detail

set_translation

public void set_translation(Request req,
                            java.lang.String args)
                     throws java.lang.Exception

Throws:

java.lang.Exception

set_rotation

public void set_rotation(Request req,
                         java.lang.String args)
                  throws java.lang.Exception

Throws:

java.lang.Exception

set_scale

public void set_scale(Request req,
                      java.lang.String args)
               throws java.lang.Exception

Throws:

java.lang.Exception

comparator

public VRObjectComparator comparator()

Returns a comparator

See Also:

TransformComparator

addMember

public void addMember(VRObject obj)

Adds obj to this Transform.

removeMember

public void removeMember(VRObject obj)

Removes obj from this Transform.

contains

public boolean contains(VRObject obj)

True if obj is member of this Transform

set_bBoxCenter

public void set_bBoxCenter(double x,
                           double y,
                           double z)

sets bounding box center

set_bBoxSize

public void set_bBoxSize(double x,
                         double y,
                         double z)

sets bounding box size

getChildren

public VRObject[] getChildren()

returns all members of this transform

getDistance

public double getDistance(double x,
                          double y,
                          double z)

calculates distance to the specified point

getDistance

public double getDistance(Transform t)

calculates distance to the specified transform