Merge origin/master

README.md

@@ -15,4 +15,5 @@ and [Video of Cloning a Git Repository Using NetBeans IDE](https://netbeans.org/
 * [Savage Developers Guide](https://savage.nps.edu/Savage/developers.html) resources for [DIS](https://savage.nps.edu/Savage/developers.html#DIS)
 * UML [Sequence diagram](https://en.wikipedia.org/wiki/Sequence_diagram) on Wikipedia
 * [WireShark](https://wireshark.org) and [WireShark Tutorial for Beginners](https://www.youtube.com/watch?v=TkCSr30UojM) video by Anson Alexander
-* [X3D-Edit](https://savage.nps.edu/X3D-Edit/#Downloads) as Netbeans Plugin
+* [X3D-Edit](https://savage.nps.edu/X3D-Edit/#Downloads) as Netbeans Plugin including [DIS PDU Player/Recorder](https://savage.nps.edu/X3D-Edit/images/DisPlayerRecorderPanel.png) and [ESPDU Generator](https://savage.nps.edu/X3D-Edit/images/DisEspduTestPanelDemo.png)
+* [X3D for Web Authors](http://x3dgraphics.com) book, examples and slidesets including [X3D Distributed Interactive Simulation (DIS)](http://x3dgraphics.com/slidesets/X3dForAdvancedModeling/DistributedInteractiveSimulation.pdf)

projects/Assignments/FinalProjects/2018March/ConardSnell/ConardSnellPositionReceiver.java

-//package PositionClient;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-import java.net.Socket;
-import java.net.UnknownHostException;
-
-/**
- *
- * @author AJSNELL
- */
-public class ConardSnellPositionReceiver {
-    /**
-     * @param args the command line arguments
-     * @throws java.io.IOException
-     */
-    public static void main(String[] args) throws IOException {
-        String hostName = args[0];
-        try (Socket clientSocket = new Socket(hostName, 8005);
-                PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
-                BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
-                BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in))) {
-                    String userInput;
-                    out.println("unit id: 1\nunit pos: 11S MS 4859 9849");
-                    while ((userInput = stdIn.readLine()) != null) {
-                        out.println(userInput);
-                        System.out.println("from client: " + in.readLine());
-                    }
-        } catch (UnknownHostException e) {
-            System.err.println("Don't know about host " + hostName);
-            System.exit(1);
-        } catch (IOException e) {
-            System.err.println("Couldn't get I/O for the connection to " + hostName);
-            System.exit(1);
-        }
-    }
-}
\ No newline at end of file

projects/Assignments/FinalProjects/2018March/ConardSnell/ConardSnellPositionSender.java

-//package positionserver;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.ServerSocket;
-import java.net.Socket;
-import java.io.PrintWriter;
-
-public class ConardSnellPositionSender {
-    /**
-     * @param args the command line arguments
-     * @throws java.io.IOException
-     */
-    public static void main(String[] args) throws IOException {
-        try (ServerSocket serverSocket = new ServerSocket(8005);
-                Socket clientSocket = serverSocket.accept();
-                PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
-                BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));) {
-            System.out.println("Client connected on port 8005");
-            String inputLine;
-            while ((inputLine = in.readLine()) != null) {
-                System.out.println("Received message: " + inputLine + " from " + clientSocket.toString());
-                out.println(inputLine);
-            }
-        } catch (IOException e) {
-            System.out.println("Exception when trying to listen on port 8005");
-        }
-    }
-}
\ No newline at end of file

projects/Assignments/FinalProjects/2018March/ConardSnell/ConardSnellREADME.md

-## Final Course Projects 2018March
-
-Create a dedicated subdirectory for each individual or team project.
-
-Example:  `SmithJones`
-
-See the course syllabus for details on how to document your project.

projects/Assignments/FinalProjects/2018March/ConardSnell/ConardTcpClient.java

-//package tcpclient;
-
-import java.io.*;
-import java.net.*;
-
-/**
- * Before, we always used telnet to connect to the server. We
- * are now writing our own program to do the connection.
- * 
- * As you will see, when we run this after we start the server
- * we will see the same string telnet printed, sent by the server.
- * The output at the server will show different socket pairs for
- * each time we ran it.
- * 
- * @author mcgredo
- */
-public class ConardTcpClient {
-
-  
-    public static void main(String[] args) 
-    {
-        try
-        {
-           System.out.println("creating socket");
-           
-           // We request an IP to connect to ("localhost") and
-           // port number at that IP (2317). This establishes
-           // a connection to that IP in the form of the Socket
-           // object; the server uses a ServerSocket to wait for
-           // connections.
-           Socket socket = new Socket("localhost", 2317); 
-           
-           // Read the single line written by the server. We'd
-           // do things a bit differently if many lines to be read
-           // from the server, instead of one only.
-           InputStream is = socket.getInputStream();
-           InputStreamReader isr = new InputStreamReader(is);
-           BufferedReader br = new BufferedReader(isr);
-           
-           String serverMessage = br.readLine();
-           System.out.println("What is your location?    " + serverMessage);
-           
-        }
-        catch(Exception e)
-        {
-            System.out.println(e);
-            System.out.println("Problem with client");
-        }
-
-    }
-    
-}

projects/Assignments/FinalProjects/2018March/ConardSnell/ConardTcpServer.java

-//package tcpserver;
-
-import java.io.*;
-import java.net.*;
-
-/**
- * Very slightly more complex than example1. A complete copy of
- * example 2. The only thing this does
- * differently is introduce a loop into the response, so you don't
- * have to restart the program after one response. Also, it prints
- * out the socket pair the server sees. Run the program via telnet
- * several times and compare the socket pairs.
- * 
- * telnet localhost 2317
- * 
- * If you're sophisticated you can contact the instructor's computer
- * while running this program.
- * 
- * telnet <ipOfServersLaptop> 2317
- * 
- * And have him display the socket pairs he got.
- * @author mcgredo
- */
-public class ConardTcpServer 
-{
-
-    public static void main(String[] args) 
-    {
-        try
-        {
-            // ServerSocket waits for a connection from a client. 
-            // Notice that it is outside the loop; ServerSocket
-            // needs to be made only once.
-            
-            ServerSocket serverSocket = new ServerSocket(2317);
-//            System.out.println("socketCreated"); 
-
-            // Loop, infinitely, waiting for client connections.
-            // Stop the program somewhere else.
-            while(true)
-            {
-                Socket clientConnection = serverSocket.accept();
-                OutputStream os = clientConnection.getOutputStream();
-                PrintStream ps = new PrintStream(os);
-
-                ps.println("My location is 1,2,5");
-                
-                // Print some information locally about the Socket
-                // connection. This includes the port and IP numbers
-                // on both sides (the socket pair.)
-                
-                InetAddress localAddress = clientConnection.getLocalAddress();
-                InetAddress remoteAddress = clientConnection.getInetAddress();
-                
-                int localPort = clientConnection.getLocalPort();
-                int remotePort = clientConnection.getPort();
-                
-                // My socket pair connection looks like this, to localhost:
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
-                //
-                // Why is the first IP/port the same, while the second set has
-                // different ports?
-
-
-                System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " + 
-                        remoteAddress.toString() + ", " + remotePort + " ))");
-                
-                // Notice the use of flush() and close(). Without
-                // the close() to Socket object may stay open for 
-                // a while after the client has stopped needing this
-                // connection. Close() explicitly ends the connection.
-                ps.flush();
-                clientConnection.close();
-            }
-       }
-        catch(Exception e)
-        {
-            System.out.println("problem with networking");
-        }
-       
-    }
-    
-}
\ No newline at end of file

projects/Assignments/FinalProjects/2018March/LandasTackettDeMoura/README.md

+MV3500 - Internetwork Communications and Simulation
+Prof. Dr. Don Brutzman
+
+Landas, Enrico
+Tacket, Cody
+Yamashita de Moura, Douglas
+
+Final Project
+Adapt a Unity or Other Program to Emit PDUs Using Open-DIS C# Binding
+
+Two C# scripts, Sender.cs and Receiver.cs, were created to send and receive
+PDUs, respectively. The following data is included:
+
+Sender.cs
+- IP Address: 239.1.2.3
+- Port: 3000
+- EntityID.Entity: 1
+
+Receiver.cs
+- IP Address: 239.1.2.3
+- Port: 3000
+- EntityID.Entity to be processed: anyone different from 1
+
+For the project purpose, the scripts were implemented in such a way that all
+multicast information is enclosed on the scripts and only selected information
+is processed and printed on the screen. Each computer will print the data
+from the entity that is different from the one it is sending.
+
+Unity Project
+- The Unity package can be downloaded from:
+- https://owncloud.nps.edu/owncloud/index.php/s/mewLa2BUEWhucPa
+
+Video
+- A video showing two applications working can be found at the Video folder 
+of the Unity package 
+
+TO-DO List
+- Create an Unity interface to receive input data: IP address, port, etc
+- Transform the object location to real world location (using latitude, 
+longitude and altitude)
+- Replace the 'InvokeRepeating' method using a thread (when creating a sender 
+and a client on the same computer, this method may not work properly, i.e., 
+the interval between the calls could be different from the expected)
+- Implement creation of the received object on the Receiver.cs (or other
+interface to be created)
+- Implement control of the object (NavySeal guy) using keyboard/mouse
\ No newline at end of file

projects/Assignments/FinalProjects/2018March/LandasTackettDeMoura/Receiver.cs

+using System;
+using UnityEngine;
+using System.Net;
+using System.Net.Sockets;
+using OpenDis.Core;
+using OpenDis.Dis1998;
+using OpenDis.Enumerations;
+using UnityEngine.UI;
+
+public class Receiver : MonoBehaviour {
+
+    UdpClient client;
+    IPEndPoint localEp;
+    EntityStatePdu newEntityStatePDU;
+    IPAddress multicastaddress;
+    PduProcessor pduProcessor;
+    int PDU_TYPE_POSITION = 2;
+    public GameObject locationText;
+    Vector3Double location;
+    EntityID entityID;
+    EntityType entityType;
+
+    // Use this for initialization
+    public void onClick () {
+
+        Debug.Log("Start receiving...");
+
+        // Create UDP Client to receive data
+        client = new UdpClient();
+        client.ExclusiveAddressUse = false;
+        localEp = new IPEndPoint(IPAddress.Any, 3000);
+        client.Client.SetSocketOption(SocketOptionLevel.Socket, 
+            SocketOptionName.ReuseAddress, true);
+        client.ExclusiveAddressUse = false;
+        client.Client.Bind(localEp);
+        multicastaddress = IPAddress.Parse("239.1.2.3");
+        client.JoinMulticastGroup(multicastaddress);
+        locationText = GameObject.FindGameObjectWithTag("ReceiverLocationText");
+
+        // Broadcast IP - Client
+        InvokeRepeating("BroadcastClientIP", 0, 1f);
+    }
+
+    // Receive data
+    void BroadcastClientIP()
+    {
+        try
+        {
+            if(client.Available > 0)
+            {
+                // Blocks until a message returns on this socket from a remote host.
+                Byte[] receivedBytes = client.Receive(ref localEp);
+
+                if(receivedBytes != null && receivedBytes.Length > 0)
+                {
+                    try
+                    {
+                        PduType pduType = (PduType)receivedBytes[PDU_TYPE_POSITION];
+                        Pdu pdu = PduProcessor.UnmarshalRawPdu(pduType, receivedBytes, Endian.Big);
+                        switch ((PduType)pdu.PduType)
+                        {
+                            case PduType.EntityState:
+                                ProcessEntityStatePdu((EntityStatePdu)pdu);
+                                SetLocationText();
+                                break;
+                            default:
+                                break;
+                        }
+                    } catch (Exception e)
+                    {
+                        Debug.LogError(e.ToString());
+                    }
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Debug.LogError(e.ToString());
+        }
+    }
+
+    // Process Entity State PDU
+    void ProcessEntityStatePdu(EntityStatePdu espdu)
+    {
+        entityID = espdu.EntityID;
+        entityType = espdu.EntityType;
+        location = espdu.EntityLocation;
+    }
+
+    // Print NavySeal info on screen
+    void SetLocationText()
+    {
+        if (entityID.Entity != 1)
+        {
+            locationText.GetComponent<Text>().text = String.Format("NAVY SEAL RECEIVER\nID: {0}\nCountry: {1}\nCategory: {2}\nLocation: ({3}, {4}, {5})", entityID.Entity.ToString(), entityType.Country.ToString(), entityType.Category.ToString(), location.X.ToString("F2"), location.Y.ToString("F2"), location.Z.ToString("F2"));
+            Debug.Log(String.Format("NAVY SEAL RECEIVER\nID: {0}\nCountry: {1}\nCategory: {2}\nLocation: ({3}, {4}, {5})", entityID.Entity.ToString(), entityType.Country.ToString(), entityType.Category.ToString(), location.X.ToString("F2"), location.Y.ToString("F2"), location.Z.ToString("F2")));
+        }
+    }
+
+}

projects/Assignments/FinalProjects/2018March/LandasTackettDeMoura/Sender.cs

+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using OpenDis.Dis1998;
+using OpenDis.Core;
+using System.IO;
+using System.Threading;
+using UnityEngine.UI;
+
+public class Sender : MonoBehaviour {
+
+    UdpClient sender;
+    string serverIP;
+    int broadcastPort = 3000;
+    IPEndPoint remoteEP;
+    string data = "";
+    public GameObject locationText;
+    EntityStatePdu espdu;
+    EntityID entityID;
+    EntityType entityType;
+
+    //NavySeal object and position
+    public GameObject NavySeal;
+    private double x;
+    private double y;
+    private double z;
+
+    void Start() {
+
+        // Get Navy Seal object
+        NavySeal = GameObject.FindGameObjectWithTag("NavySealPrefab");
+
+        // Create new entity state and set exercise
+        espdu = new EntityStatePdu();
+        espdu.ExerciseID = 1;
+
+        // Create and set entity marking
+        Marking myMarking = new Marking();
+        myMarking.CharacterSet = 1;
+        String markingTest = "Test";
+        myMarking.Characters = Encoding.UTF8.GetBytes(markingTest);
+        espdu.Marking = myMarking;
+
+        // Get time stamp
+        espdu.Timestamp = (uint)DateTimeOffset.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds;
+
+        // Set entity ID parameters
+        entityID = espdu.EntityID;
+        entityID.Site = 1;
+        entityID.Application = 1;
+        entityID.Entity = 1;
+
+        // Set entity type parameters
+        entityType = espdu.EntityType;
+        entityType.EntityKind = 1;
+        entityType.Country = 225;
+        entityType.Domain = 1;
+        entityType.Category = 1;
+        entityType.Subcategory = 20;
+        entityType.Specific = 3;
+
+        locationText = GameObject.FindGameObjectWithTag("SenderLocationText");
+    }
+
+    // Use this for initialization
+    public void onClick () {
+        Debug.Log("Starting multicasting...");
+
+        //Create UDP Client for broadcasting the server
+        sender = new UdpClient();
+        IPAddress groupIP = IPAddress.Parse("239.1.2.3");
+        sender.JoinMulticastGroup(groupIP);
+        remoteEP = new IPEndPoint(groupIP, broadcastPort);
+
+        //Broadcast IP - Server
+        InvokeRepeating("BroadcastServerIP", 0, 1f);
+    }
+
+    // Prepare and send data
+    void BroadcastServerIP()
+    {
+        // Get and print entity position
+        x = NavySeal.transform.position.x;
+        y = NavySeal.transform.position.y;
+        z = NavySeal.transform.position.z; 
+        //Debug.Log(NavySeal.transform.position);
+
+        // Set entity location
+        Vector3Double location = espdu.EntityLocation;
+        location.X = x;
+        location.Y = y;
+        location.Z = z;
+
+        // Get time stamp
+        espdu.Timestamp = (uint)DateTimeOffset.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds;
+
+        //Prepare output
+        DataOutputStream dos = new DataOutputStream(Endian.Big);
+        espdu.MarshalAutoLengthSet(dos);
+
+        // Transmit messages
+        byte[] buffer = dos.ConvertToBytes();
+        sender.Send(buffer, buffer.Length, remoteEP);
+        //Debug.Log(Time.realtimeSinceStartup + ": Sent broadcast data: " + espdu);
+
+        SetLocationText();
+    }
+    
+    // Print NavySeal info on screen
+    void SetLocationText()
+    {
+        locationText.GetComponent<Text>().text = String.Format("NAVY SEAL SENDER\nID: {0}\nCountry: {1}\nCategory: {2}\nLocation: ({3}, {4}, {5})", entityID.Entity.ToString(), entityType.Country.ToString(), entityType.Category.ToString(), x.ToString("F2"), y.ToString("F2"), z.ToString("F2"));
+        Debug.Log(String.Format("NAVY SEAL SENDER\nID: {0}\nCountry: {1}\nCategory: {2}\nLocation: ({3}, {4}, {5})", entityID.Entity.ToString(), entityType.Country.ToString(), entityType.Category.ToString(), x.ToString("F2"), y.ToString("F2"), z.ToString("F2")));
+    }
+
+}

projects/Assignments/FinalProjects/README.md

-## Final Course Projects
+## Final Course Project Landas and Tackett
 
 Create a dedicated subdirectory for each individual or team project.
 

projects/Assignments/homework1/ConardTcpClient.java

-//package tcpclient;
-
-import java.io.*;
-import java.net.*;
-
-/**
- * Before, we always used telnet to connect to the server. We
- * are now writing our own program to do the connection.
- * 
- * As you will see, when we run this after we start the server
- * we will see the same string telnet printed, sent by the server.
- * The output at the server will show different socket pairs for
- * each time we ran it.
- * 
- * @author mcgredo
- */
-public class ConardTcpClient {
-
-  
-    public static void main(String[] args) 
-    {
-        try
-        {
-           System.out.println("creating socket");
-           
-           // We request an IP to connect to ("localhost") and
-           // port number at that IP (2317). This establishes
-           // a connection to that IP in the form of the Socket
-           // object; the server uses a ServerSocket to wait for
-           // connections.
-           Socket socket = new Socket("localhost", 2317); 
-           
-           // Read the single line written by the server. We'd
-           // do things a bit differently if many lines to be read
-           // from the server, instead of one only.
-           InputStream is = socket.getInputStream();
-           InputStreamReader isr = new InputStreamReader(is);
-           BufferedReader br = new BufferedReader(isr);
-           
-           String serverMessage = br.readLine();
-           System.out.println("What is your location?    " + serverMessage);
-           
-        }
-        catch(Exception e)
-        {
-            System.out.println(e);
-            System.out.println("Problem with client");
-        }
-
-    }
-    
-}

projects/Assignments/homework1/ConardTcpServer.java

-//package tcpserver;
-
-import java.io.*;
-import java.net.*;
-
-/**
- * Very slightly more complex than example1. A complete copy of
- * example 2. The only thing this does
- * differently is introduce a loop into the response, so you don't
- * have to restart the program after one response. Also, it prints
- * out the socket pair the server sees. Run the program via telnet
- * several times and compare the socket pairs.
- * 
- * telnet localhost 2317
- * 
- * If you're sophisticated you can contact the instructor's computer
- * while running this program.
- * 
- * telnet <ipOfServersLaptop> 2317
- * 
- * And have him display the socket pairs he got.
- * @author mcgredo
- */
-public class ConardTcpServer 
-{
-
-    public static void main(String[] args) 
-    {
-        try
-        {
-            // ServerSocket waits for a connection from a client. 
-            // Notice that it is outside the loop; ServerSocket
-            // needs to be made only once.
-            
-            ServerSocket serverSocket = new ServerSocket(2317);
-//            System.out.println("socketCreated"); 
-
-            // Loop, infinitely, waiting for client connections.
-            // Stop the program somewhere else.
-            while(true)
-            {
-                Socket clientConnection = serverSocket.accept();
-                OutputStream os = clientConnection.getOutputStream();
-                PrintStream ps = new PrintStream(os);
-
-                ps.println("My location is 1,2,5");
-                
-                // Print some information locally about the Socket
-                // connection. This includes the port and IP numbers
-                // on both sides (the socket pair.)
-                
-                InetAddress localAddress = clientConnection.getLocalAddress();
-                InetAddress remoteAddress = clientConnection.getInetAddress();
-                
-                int localPort = clientConnection.getLocalPort();
-                int remotePort = clientConnection.getPort();
-                
-                // My socket pair connection looks like this, to localhost:
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
-                //
-                // Why is the first IP/port the same, while the second set has
-                // different ports?
-
-
-                System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " + 
-                        remoteAddress.toString() + ", " + remotePort + " ))");
-                
-                // Notice the use of flush() and close(). Without
-                // the close() to Socket object may stay open for 
-                // a while after the client has stopped needing this
-                // connection. Close() explicitly ends the connection.
-                ps.flush();
-                clientConnection.close();
-            }
-       }
-        catch(Exception e)
-        {
-            System.out.println("problem with networking");
-        }
-       
-    }
-    
-}
\ No newline at end of file

projects/Assignments/homework2/TackettMulticastSender.java

@@ -12,7 +12,7 @@ import java.net.*;
 
 
 public class TackettMulticastSender {
-    public static final String MULTICAST_ADDRESS = "239.1.2.15";
+    public static final String MULTICAST_ADDRESS = "172.20.144.145";
     public static final int DESTINATION_PORT = 1717;
     /** How many routers can be crossed */
     public static final int TTL = 10;

projects/Assignments/homework3/EspduSender_1.java

-package edu.nps.moves.examples;
-
-import java.io.*;
-import java.net.*;
-import java.util.*;
-
-import edu.nps.moves.dis.*;
-import edu.nps.moves.disutil.CoordinateConversions;
-import edu.nps.moves.disutil.DisTime;
-
-/**
- * Creates and sends ESPDUs in IEEE binary format. 
- *
- * @author DMcG
- */
-public class EspduSender 
-{
-    public static final int NUMBER_TO_SEND = 5000;
-
-    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
-
-    /** default multicast group we send on */
-    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.3";
-   
-    /** Port we send on */
-    public static final int    DIS_DESTINATION_PORT = 3000;
-    
-/** Possible system properties, passed in via -Dattr=val
-     * networkMode: unicast, broadcast, multicast
-     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
-     *                To determine bcast destination IP, use an online bcast address
-     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
-     *                If in mcast mode, a join() will be done on the mcast address.
-     * port: port used for both source and destination.
-     * @param args 
-     */
-public static void main(String args[])
-{
-    /** an entity state pdu */
-    EntityStatePdu espdu = new EntityStatePdu();
-    MulticastSocket socket = null;
-    DisTime disTime = DisTime.getInstance();
-    int alternator = -1;
-    
-    // ICBM coordinates for my office
-    double lat = 36.595517; 
-    double lon = -121.877000;
-
-    
-    // Default settings. These are used if no system properties are set. 
-    // If system properties are passed in, these are over ridden.
-    int port = DIS_DESTINATION_PORT;
-    NetworkMode mode = NetworkMode.BROADCAST;
-    InetAddress destinationIp = null;
-    
-    try
-    {
-        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
-    }
-    catch(Exception e)
-    {
-        System.out.println(e + " Cannot create multicast address");
-        System.exit(0);
-    }
-    
-    // All system properties, passed in on the command line via -Dattribute=value
-    Properties systemProperties = System.getProperties();
-    
-    // IP address we send to
-    String destinationIpString = systemProperties.getProperty("destinationIp");
-    
-    // Port we send to, and local port we open the socket on
-    String portString = systemProperties.getProperty("port");
-    
-    // Network mode: unicast, multicast, broadcast
-    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
-        
-
-    // Set up a socket to send information
-    try
-    {
-        // Port we send to
-        if(portString != null)
-            port = Integer.parseInt(portString);
-        
-        socket = new MulticastSocket(port);
-        
-        // Where we send packets to, the destination IP address
-        if(destinationIpString != null)
-        {
-            destinationIp = InetAddress.getByName(destinationIpString);
-        }
-
-        // Type of transport: unicast, broadcast, or multicast
-        if(networkModeString != null)
-        {
-            if(networkModeString.equalsIgnoreCase("unicast"))
-                mode = NetworkMode.UNICAST;
-            else if(networkModeString.equalsIgnoreCase("broadcast"))
-                mode = NetworkMode.BROADCAST;
-            else if(networkModeString.equalsIgnoreCase("multicast"))
-            {
-                mode = NetworkMode.MULTICAST;
-                if(!destinationIp.isMulticastAddress())
-                {
-                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
-                }
-                
-                socket.joinGroup(destinationIp);
-                
-            }
-        } // end networkModeString
-    }
-    catch(Exception e)
-    {
-        System.out.println("Unable to initialize networking. Exiting.");
-        System.out.println(e);
-        System.exit(-1);
-    }
-    
-    // Initialize values in the Entity State PDU object. The exercise ID is 
-    // a way to differentiate between different virtual worlds on one network.
-    // Note that some values (such as the PDU type and PDU family) are set
-    // automatically when you create the ESPDU.
-    espdu.setExerciseID((short)1);
-    
-    // The EID is the unique identifier for objects in the world. This 
-    // EID should match up with the ID for the object specified in the 
-    // VMRL/x3d/virtual world.
-    EntityID eid = espdu.getEntityID();
-    eid.setSite(1);  // 0 is apparently not a valid site number, per the spec
-    eid.setApplication(1); 
-    eid.setEntity(2); 
-    
-    // Set the entity type. SISO has a big list of enumerations, so that by
-    // specifying various numbers we can say this is an M1A2 American tank,
-    // the USS Enterprise, and so on. We'll make this a tank. There is a 
-    // separate project elsehwhere in this project that implements DIS 
-    // enumerations in C++ and Java, but to keep things simple we just use
-    // numbers here.
-    EntityType entityType = espdu.getEntityType();
-    entityType.setEntityKind((short)1);      // Platform (vs lifeform, munition, sensor, etc.)
-    entityType.setCountry(225);              // USA
-    entityType.setDomain((short)1);          // Land (vs air, surface, subsurface, space)
-    entityType.setCategory((short)1);        // Tank
-    entityType.setSubcategory((short)1);     // M1 Abrams
-    entityType.setSpec((short)3);            // M1A2 Abrams
-    
-
-    Set<InetAddress> bcastAddresses = getBroadcastAddresses();
-    // Loop through sending N ESPDUs
-    try
-    {
-        System.out.println("Sending " + NUMBER_TO_SEND + " ESPDU packets to " + destinationIp.toString());
-        for(int idx = 0; idx < NUMBER_TO_SEND; idx++)
-        {
-            // DIS time is a pain in the ass. DIS time units are 2^31-1 units per
-            // hour, and time is set to DIS time units from the top of the hour. 
-            // This means that if you start sending just before the top of the hour
-            // the time units can roll over to zero as you are sending. The receivers
-            // (escpecially homegrown ones) are often not able to detect rollover
-            // and may start discarding packets as dupes or out of order. We use
-            // an NPS timestamp here, hundredths of a second since the start of the
-            // year. The DIS standard for time is often ignored in the wild; I've seen
-            // people use Unix time (seconds since 1970) and more. Or you can
-            // just stuff idx into the timestamp field to get something that is monotonically
-            // increasing.
-            
-            // Note that timestamp is used to detect duplicate and out of order packets. 
-            // That means if you DON'T change the timestamp, many implementations will simply
-            // discard subsequent packets that have an identical timestamp. Also, if they
-            // receive a PDU with an timestamp lower than the last one they received, they
-            // may discard it as an earlier, out-of-order PDU. So it is a good idea to
-            // update the timestamp on ALL packets sent.
-            
-
-            // An alterative approach: actually follow the standard. It's a crazy concept,
-            // but it might just work.
-            int ts = disTime.getDisAbsoluteTimestamp();
-            espdu.setTimestamp(ts);
-            
-            // Set the position of the entity in the world. DIS uses a cartesian 
-            // coordinate system with the origin at the center of the earth, the x
-            // axis out at the equator and prime meridian, y out at the equator and
-            // 90 deg east, and z up and out the north pole. To place an object on
-            // the earth's surface you also need a model for the shape of the earth
-            // (it's not a sphere.) All the fancy math necessary to do this is in
-            // the SEDRIS SRM package. There are also some one-off formulas for 
-            // doing conversions from, for example, lat/lon/altitude to DIS coordinates.
-            // Here we use those one-off formulas.
-
-            // Modify the position of the object. This will send the object a little
-            // due east by adding some to the longitude every iteration. Since we
-            // are on the Pacific coast, this sends the object east. Assume we are
-            // at zero altitude. In other worlds you'd use DTED to determine the
-            // local ground altitude at that lat/lon, or you'd just use ground clamping.
-            // The x and y values will change, but the z value should not.
-            
-            //lon = lon + (double)((double)idx / 100000.0);
-            //System.out.println("lla=" + lat + "," + lon + ", 0.0");
-
-            double direction = Math.pow((double)(-1.0), (double)(idx));
-            lon = lon + (direction * 0.00006);
-            System.out.println(lon);
-            
-            double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
-            Vector3Double location = espdu.getEntityLocation();
-            location.setX(disCoordinates[0]);
-            location.setY(disCoordinates[1]);
-            location.setZ(disCoordinates[2]);
-            System.out.println("lat, lon:" + lat + ", " + lon);
-            System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
-
-            // Optionally, we can do some rotation of the entity
-            /*
-            Orientation orientation = espdu.getEntityOrientation();
-            float psi = orientation.getPsi();
-            psi = psi + idx;
-            orientation.setPsi(psi);
-            orientation.setTheta((float)(orientation.getTheta() + idx /2.0));
-             */
-            
-            // You can set other ESPDU values here, such as the velocity, acceleration,
-            // and so on.
-
-            // Marshal out the espdu object to a byte array, then send a datagram
-            // packet with that data in it.
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            DataOutputStream dos = new DataOutputStream(baos);
-            espdu.marshal(dos);
-
-            FirePdu fire = new FirePdu();
-            byte[] fireArray = fire.marshal();
-            
-            // The byte array here is the packet in DIS format. We put that into a 
-            // datagram and send it.
-            byte[] data = baos.toByteArray();
-
-            bcastAddresses = getBroadcastAddresses();
-            Iterator it = bcastAddresses.iterator();
-            while(it.hasNext())
-            {
-               InetAddress bcast = (InetAddress)it.next();
-               System.out.println("Sending bcast to " + bcast);
-               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, 3000);
-               socket.send(packet);
-               packet = new DatagramPacket(fireArray, fireArray.length, bcast, 3000);
-               //socket.send(packet);
-            }
-            
-            // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
-            Thread.sleep(3000);
-
-            location = espdu.getEntityLocation();
-            
-            System.out.println("Espdu #" + idx + " EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
-            System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
-            double c[] = {location.getX(), location.getY(), location.getZ()};
-            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
-//            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
-
-        }
-    }
-    catch(Exception e)
-    {
-        System.out.println(e);
-    }
-        
-}
-
- /**
-    * A number of sites get all snippy about using 255.255.255.255 for a bcast
-    * address; it trips their security software and they kick you off their 
-    * network. (Comcast, NPS.) This determines the bcast address for all
-    * connected interfaces, based on the IP and subnet mask. If you have
-    * a dual-homed host it will return a bcast address for both. If you have
-    * some VMs running on your host this will pick up the addresses for those
-    * as well--eg running VMWare on your laptop with a local IP this will
-    * also pick up a 192.168 address assigned to the VM by the host OS.
-    * 
-    * @return set of all bcast addresses
-    */
-   public static Set<InetAddress> getBroadcastAddresses()
-   {
-       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
-       Enumeration interfaces;
-       
-       try
-       {
-           interfaces = NetworkInterface.getNetworkInterfaces();
-           
-           while(interfaces.hasMoreElements())
-           {
-               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
-               
-               if(anInterface.isUp())
-               {
-                   Iterator it = anInterface.getInterfaceAddresses().iterator();
-                   while(it.hasNext())
-                   {
-                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
-                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
-                           continue;
-                       
-                       //System.out.println("Getting bcast address for " + anAddress);
-                       InetAddress abcast = anAddress.getBroadcast();
-                       if(abcast != null)
-                        bcastAddresses.add(abcast);
-                   }
-               }
-           }
-           
-       }
-       catch(Exception e)
-       {
-           e.printStackTrace();
-           System.out.println(e);
-       }
-       
-       return bcastAddresses;   
-   }
-
-}

projects/Assignments/homework3/Tackett_Assignment3_README.html

+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Tackett_Assignment3_README</title>
+<style type="text/css">/*...*/</style>
+</head>
+<body>
+<h2>Homework Assignment 3 Checklist</h2>
+<ol>
+  <li><p>[x] Add X3D-Edit as Netbeans Plugin from https://savage.nps.edu/X3D-Edit/#Downloads</p></li>
+  <li><p>[x] Optional: checkout Open-DIS-Java library source from https://github.com/open-dis/open-dis-java</p></li>
+  <li><p>[x] Otherwise just inspect files of interest from  <a href="https://github.com/open-dis/open-dis-java/tree/master/src/main/java/edu/nps/moves/examples">edu.nps.moves.examples</a></p></li>
+  <li><p>[x] Copy README.md and create YournameREADME.md documentation file...</p></li>
+  <li><p>[x] Plan a track of interest, described in YournameREADME.md documentation file...</p>
+  <pre><code>Track of interest is a sample from a run route I did recently.
+</code></pre></li>
+  <li><p>[x] Copy, then Refactor/Rename example file OpenDisEspduSender.java or OpenDisPduSender.java as YourNameSomething.java</p></li>
+  <li><p>[x] Modify your example file to produce track PDUs (and be cool)</p></li>
+  <li><p>[x] Generate PDUs...</p></li>
+  <li><p>[x] Test PDU reading using Wireshark...</p>
+  <pre><code>IP address for my machine is 172.20.148.166
+</code></pre></li>
+  <li><p>[x] Record PDU file using X3D-Edit...</p></li>
+  <li><p>[x] Playback PDU file using X3D-Edit...</p></li>
+</ol>
+</body>
+</html>
\ No newline at end of file

projects/Assignments/homework3/Tackett_Assignment3_README.md

+## Homework Assignment 3 Checklist
+
+1. [x] Add X3D-Edit as Netbeans Plugin from https://savage.nps.edu/X3D-Edit/#Downloads
+
+1. [x] Optional: checkout Open-DIS-Java library source from https://github.com/open-dis/open-dis-java
+
+1. [x] Otherwise just inspect files of interest from
+   [edu.nps.moves.examples](https://github.com/open-dis/open-dis-java/tree/master/src/main/java/edu/nps/moves/examples)
+
+1. [x] Copy README.md and create YournameREADME.md documentation file...
+
+1. [x] Plan a track of interest, described in YournameREADME.md documentation file...
+
+        Track of interest is a sample from a run route I did recently.
+
+1. [x] Copy, then Refactor/Rename example file OpenDisEspduSender.java or OpenDisPduSender.java as YourNameSomething.java
+
+1. [x] Modify your example file to produce track PDUs (and be cool)
+
+1. [x] Generate PDUs...
+
+1. [x] Test PDU reading using Wireshark...
+
+        IP address for my machine is 172.20.148.166
+
+1. [x] Record PDU file using X3D-Edit...
+
+1. [x] Playback PDU file using X3D-Edit...