de.grogra.turtle
Class HDir

java.lang.Object
  de.grogra.graph.impl.Edge
      de.grogra.graph.impl.Node
          de.grogra.turtle.HDir

All Implemented Interfaces:

Transformation, Manageable, PersistenceCapable, Shareable, UserFields, XObject, Map, java.io.Serializable

public class HDir
extends Node
implements Transformation

Set the local z-axis (the turtle's head axis) so that it encompasses the given angle to the world's up axis. This is performed by a rotation in the plane spanned by the world's up axis and the former head direction of the turtle.

Author:

Reinhard Hemmerling

See Also:

Serialized Form

Nested Class Summary

static class

HDir.Pattern

Nested classes/interfaces inherited from class de.grogra.graph.impl.Node

Node.AccessorBridge, Node.FieldAttributeAccessor, Node.NType

Nested classes/interfaces inherited from interface de.grogra.util.Map

Map.Chain

Field Summary

static Node.NType	$TYPE
float	angle The rotation angle in degrees.
static Node.NType.Field	angle$FIELD

Fields inherited from class de.grogra.graph.impl.Node

ADDITIONAL_FIELDS, bits, DELETED, EXTENT_BIT, EXTENT_MASK, extentIndex$FIELD, extentTail$FIELD, HAS_OBSERVERS, IS_INTERPRETIVE, isInterpretive$FIELD, LAST_EXTENT_INDEX, layer$FIELD, MARK, mark$FIELD, MIME_TYPE, MIN_UNUSED_SPECIAL_OF_SOURCE, MIN_UNUSED_SPECIAL_OF_TARGET, name$FIELD, USED_BITS

Fields inherited from interface de.grogra.util.Map

DEFAULT_VALUE, EMPTY_MAP

Constructor Summary

HDir()
Creates a new HDir node with an initial angle of 0 degrees.

HDir(float angle)
Creates a new HDir node which set's the head axis of the turtle such that it spans the given angle in degrees to the world's up-axis.

Method Summary

float	getAngle()
protected Node.NType	getNTypeImpl() This method returns the Node.NType which describes the managed fields of the class of this node.
protected Node	newInstance() This method returns a new instance of the class of this node.
void	postTransform(java.lang.Object node, boolean asNode, Matrix4d in, Matrix4d out, Matrix4d pre, GraphState gs) Implements the change from object's transformation in to the object's post-transformation out.
void	preTransform(java.lang.Object node, boolean asNode, Matrix4d in, Matrix4d out, GraphState gs) Implements the change from the parent's post-transformation in to the object's transformation out.
void	setAngle(float value)

Methods inherited from class de.grogra.graph.impl.Node

addEdgeBitsTo, addReference, appendBranchNode, appendBranchNode, appendReferencesTo, clone, clone, cloneGraph, dump, dumpTree, dup, dupUnmanagedFields, edgeChanged, fieldModified, findAdjacent, get, getAccessor, getAccessor, getAttributes, getAxisParent, getBoolean, getBranch, getBranchLength, getBranchNode, getBranchTail, getByte, getChar, getCommonAncestor, getCurrentGraphState, getDirectChildCount, getDouble, getEdgeAttributeAccessor, getEdgeAttributes, getEdgeBitsTo, getEdgeTo, getExtentIndex, getFirst, getFirstEdge, getFloat, getGraph, getId, getIndex, getInstantiator, getInt, getLayer, getLong, getManageableType, getName, getNeighbor, getNext, getNType, getObject, getOrCreateEdgeTo, getOrNull, getPersistenceManager, getPredecessor, getProvider, getShort, getSource, getStamp, getSuccessor, getSymbol, getSymbolColor, getTarget, getTransaction, getUserField, getUserFieldCount, getXClass, getXData, hasName, initProvider, initXClass, insertBranchNode, insertBranchNode, instantiateGraph, isAncestorOf, isDirection, isManagingInstance, isMarked, isRoot, isSource, isTarget, manageableReadResolve, manageableWriteReplace, paramString, removeAll, removeEdgeBitsTo, removeFromChain, removeFromChain, removeReference, setBranch, setBranch, setExtentIndex, setGraphForDeserialization, setLayer, setMark, setName, setSuccessor, setSuccessor, specialEdgeAdded, specialEdgeRefModified, specialEdgeRemoved, toString, writeReplace

Methods inherited from class de.grogra.graph.impl.Edge

addEdgeBits, getBitMark, getEdgeBits, getObjectMark, getSpecialEdgeDescriptor, parseEdgeKeys, remove, removeEdgeBits, setBitMark, setEdgeBits, setObjectMark, testEdgeBits

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.grogra.persistence.PersistenceCapable

getBitMark, getObjectMark, setBitMark, setObjectMark

Field Detail

$TYPE

public static final Node.NType $TYPE

angle

public float angle

The rotation angle in degrees.

angle$FIELD

public static final Node.NType.Field angle$FIELD

Constructor Detail

HDir

public HDir()

Creates a new HDir node with an initial angle of 0 degrees.

HDir

public HDir(float angle)

Creates a new HDir node which set's the head axis of the turtle such that it spans the given angle in degrees to the world's up-axis.

Parameters:

angle - angle between head and world's up direction in degrees

Method Detail

getAngle

public float getAngle()

getNTypeImpl

protected Node.NType getNTypeImpl()

Description copied from class: Node

This method returns the Node.NType which describes the managed fields of the class of this node. This method has to be implemented in every concrete subclass.

Overrides:

getNTypeImpl in class Node

Returns:

type describing the managed fields of the class of this node

newInstance

protected Node newInstance()

Description copied from class: Node

This method returns a new instance of the class of this node. This method has to be implemented in every concrete subclass.

Overrides:

newInstance in class Node

Returns:

new instance of class of this node

postTransform

public void postTransform(java.lang.Object node,
                          boolean asNode,
                          Matrix4d in,
                          Matrix4d out,
                          Matrix4d pre,
                          GraphState gs)

Description copied from interface: Transformation

Implements the change from object's transformation in to the object's post-transformation out.

Specified by:

postTransform in interface Transformation

Parameters:

node - the object for which the transformation is computed

asNode - is object a node or an edge?

in - the transformation of the object

out - the post-tranformation of the object to be computed

pre - the post-transformation of the object's parent

gs - the graph state in which the computation has to be done

preTransform

public void preTransform(java.lang.Object node,
                         boolean asNode,
                         Matrix4d in,
                         Matrix4d out,
                         GraphState gs)

Description copied from interface: Transformation

Implements the change from the parent's post-transformation in to the object's transformation out.

Specified by:

preTransform in interface Transformation

Parameters:

node - the object for which the transformation is computed

asNode - is object a node or an edge?

in - the post-transformation of the object's parent

out - the tranformation of the object to be computed

gs - the graph state in which the computation has to be done

setAngle

public void setAngle(float value)