com.jme3.scene.plugins.blender.meshes

Class IndexesLoop

java.lang.Object

com.jme3.scene.plugins.blender.meshes.IndexesLoop

All Implemented Interfaces:

java.lang.Iterable<java.lang.Integer>, java.util.Comparator<java.lang.Integer>

public class IndexesLoop
extends java.lang.Object
implements java.util.Comparator<java.lang.Integer>, java.lang.Iterable<java.lang.Integer>

This class represents the Face's indexes loop. It is a simplified implementation of directed graph.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	IndexesLoop.IndexPredicate

Field Summary

Fields

Modifier and Type	Field and Description
static IndexesLoop.IndexPredicate	INDEX_PREDICATE_USE_ALL

Constructor Summary

Constructors

Constructor and Description
IndexesLoop(java.lang.Integer[] nodes) The constructor uses the given nodes in their give order.

Method Summary

Modifier and Type	Method and Description
void	addEdge(java.lang.Integer from, java.lang.Integer to) Adds edge to the loop.
boolean	areNeighbours(java.lang.Integer index1, java.lang.Integer index2) Tells if the given indexes are neighbours.
IndexesLoop	clone()
int	compare(java.lang.Integer i1, java.lang.Integer i2)
void	findPath(java.lang.Integer start, java.lang.Integer end, java.util.List<java.lang.Integer> result) The method finds the path between the given indexes.
java.lang.Integer	get(int indexPosition) Returns the index at the given position.
java.util.List<java.lang.Integer>	getAll()
java.lang.Integer	getNextIndex(java.lang.Integer index) Returns the value of the index located after the given one.
java.lang.Integer	getPreviousIndex(java.lang.Integer index) Returns the value of the index located before the given one.
int	indexOf(java.lang.Integer index) Returns the position of the given index in the loop.
java.util.Iterator<java.lang.Integer>	iterator()
boolean	removeEdge(java.lang.Integer node1, java.lang.Integer node2) Removes edge from the face.
void	removeIndexes(java.lang.Integer... indexes) The method removes all given indexes.
void	reverse() Reverses the order of the indexes.
void	shiftIndexes(int shift, IndexesLoop.IndexPredicate predicate) The method shifts all indexes by a given value.
int	size()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

INDEX_PREDICATE_USE_ALL

public static final IndexesLoop.IndexPredicate INDEX_PREDICATE_USE_ALL

Constructor Detail

IndexesLoop

public IndexesLoop(java.lang.Integer[] nodes)

The constructor uses the given nodes in their give order. Each neighbour indexes will form an edge.

Parameters:

nodes - the nodes for the loop

Method Detail

clone

public IndexesLoop clone()

Overrides:

clone in class java.lang.Object

size

public int size()

Returns:

the count of indexes

addEdge

public void addEdge(java.lang.Integer from,
                    java.lang.Integer to)

Adds edge to the loop.

Parameters:

from - the start index

to - the end index

removeEdge

public boolean removeEdge(java.lang.Integer node1,
                          java.lang.Integer node2)

Removes edge from the face. The edge is removed if it already exists in the face.

Parameters:

node1 - the first index of the edge to be removed

node2 - the second index of the edge to be removed

Returns:

true if the edge was removed and false otherwise

areNeighbours

public boolean areNeighbours(java.lang.Integer index1,
                             java.lang.Integer index2)

Tells if the given indexes are neighbours.

Parameters:

index1 - the first index

index2 - the second index

Returns:

true if the given indexes are neighbours and false otherwise

getNextIndex

public java.lang.Integer getNextIndex(java.lang.Integer index)

Returns the value of the index located after the given one. Pointint the last index will return the first one.

Parameters:

index - the index value

Returns:

the value of 'next' index

getPreviousIndex

public java.lang.Integer getPreviousIndex(java.lang.Integer index)

Returns the value of the index located before the given one. Pointint the first index will return the last one.

Parameters:

index - the index value

Returns:

the value of 'previous' index

shiftIndexes

public void shiftIndexes(int shift,
                         IndexesLoop.IndexPredicate predicate)

The method shifts all indexes by a given value.

Parameters:

shift - the value to shift all indexes

predicate - the predicate that verifies which indexes should be shifted; if null then all will be shifted

reverse

public void reverse()

Reverses the order of the indexes.

indexOf

public int indexOf(java.lang.Integer index)

Returns the position of the given index in the loop.

Parameters:

index - the index of the face

Returns:

the indexe's position in the loop

get

public java.lang.Integer get(int indexPosition)

Returns the index at the given position.

Parameters:

indexPosition - the position of the index

Returns:

the index at a given position

getAll

public java.util.List<java.lang.Integer> getAll()

Returns:

all indexes of the face

removeIndexes

public void removeIndexes(java.lang.Integer... indexes)

The method removes all given indexes.

Parameters:

indexes - the indexes to be removed

findPath

public void findPath(java.lang.Integer start,
                     java.lang.Integer end,
                     java.util.List<java.lang.Integer> result)
              throws BlenderFileException

The method finds the path between the given indexes.

Parameters:

start - the start index

end - the end index

result - a list containing indexes on the path from start to end (inclusive)

Throws:

java.lang.IllegalStateException - an exception is thrown when the loop is not normalized (at least one index has more than 2 neighbours)

BlenderFileException - an exception is thrown if the vertices of a face create more than one loop; this is thrown to prevent lack of memory errors during triangulation

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

compare

public int compare(java.lang.Integer i1,
                   java.lang.Integer i2)

Specified by:

compare in interface java.util.Comparator<java.lang.Integer>

iterator

public java.util.Iterator<java.lang.Integer> iterator()

Specified by:

iterator in interface java.lang.Iterable<java.lang.Integer>