GenerateEngravingIDs

```
public class GenerateEngravingIDs
extends java.lang.Object
```
This class is used to generate and associate IDs with each edge that is connected to another edge. Two connected edges are associated with the same ID. The IDs can be engraved on the shapes while laser-cutting, thus making it easier to find out which edge of which shape needs to be connected to which edge of which other shape. IDs consist of two upper case letters of the alphabet (e.g. "AE") and are unique as long as there aren't more than 676 connections. If more than 676 connections are created, IDs may be duplicated. However, in such big constructions it should not be likely to have two pieces which seemingly fit together AND have the same ID but don't actually belong together. Also, duplicate IDs should be rare unless the user builds something truly enormous.

Fields
Modifier and Type	Field and Description
`private static char`	`c1`
`private static char`	`c2`

Constructors
Constructor and Description
`GenerateEngravingIDs()`

Methods
Modifier and Type	Method and Description
`private static java.util.HashMap<Edge,java.lang.String>`	`createIDs(java.util.ArrayList<Connection> connections)`
`private static java.lang.String`	`getConnectionID()`
`static java.util.HashMap<Edge,java.lang.String>`	`getEngravingIDMap(java.util.ArrayList<Connection> connections)` This method generates a HashMap which maps each Edge which is part of a connection to an ID.
`private static void`	`incrementConnectionID()`
`private static void`	`resetConnectionID()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Class GenerateEngravingIDs