JAVA: Distance forward intersection algorithm GUI implementation

Compilation Environment:

Operating system: Win8.1 64-bit

IDE platform: Visual Studio Ultimate

First, principle and procedure

Second, the Code implementation

Distance to the front intersection. Java

Package Text;import Java.awt.*;import Java.awt.event.*;import java.math.*;import javax.swing.*;import javax.swing.border.border;/** * A frame with sample text Components. */public class distance forward Rendezvous extends jframe{& nbsp;  public static final int textarea_rows = 20;   public static final int textarea_columns = 40;    Public Distance forward intersection ()    {      final JTextField a_x = new JTextField ("37477") ;      final JTextField a_y = new JTextField ("16307");      final JTextField b_x = new JTextField ("37327");      final JTextField b_y = new JTextField ("16078"); nbsp;         final JTextField c_x = new JTextField ("37163");       final JTextField c_y = new JTextField ("16046");      JPanel northpanel = new JPanel ();      final JTextField DAP = new JTextField ("200");      final JTextField DBP = new JTextField (" $ ");      final JTextField DCP = new JTextField ("$");      JPanel Westpanel = new JPanel ();       JLabel pic= New JLabel ();      Pic.seticon (New ImageIcon ("g:/workplace/ Distance forward intersection/2.png "));      westpanel.add (pic);      GetContentPane ( ). Add (Westpanel, borderlayout.west);      JPanel northPane2 = new JPanel ();    //distance from the front intersection           northpane2.setlayout (New GridLayout (3, 8));           Northpane2.add (New JLabel ("a_x:", Swingconstants.center));           Northpane2.add (a_x);           Northpane2.add (New JLabel ("A_y:", Swingconstants.center));   &NBsp;       Northpane2.add (a_y);           Northpane2.add (New JLabel ("b_x:", Swingconstants.center));           Northpane2.add (b_x);          Northpane2.add (New JLabel ("B_Y: ", Swingconstants.center));          NorthPane2.add (B_Y);           Northpane2.add (New JLabel ("c_x:", Swingconstants.center));           Northpane2.add (c_x);           Northpane2.add (New JLabel ("C_y:", Swingconstants.center));           Northpane2.add (c_y);          Northpane2.add (New JLabel ("DAP:", Swingconstants.center));           Northpane2.add (DAP);          Northpane2.add (New JLabel ("DBP:", Swingconstants.center));          NorthPane2.add (DBP);           Northpane2.add (New JLabel ("DCP:", Swingconstants.center));           Northpane2.add (DCP);      Border etched = Borderfactory.createetchedborder ();      Border titled = Borderfactory.createtitledborder (Etched, "distance ahead Rendezvous");      Northpanel.setborder (titled);      Getcontentpane (). Add (NorthPane2, Borderlayout.north);             Final JTextArea TextArea = new JTextArea (20,40);      jscrollpane scrollPane = new Jscrol Lpane (TextArea);      Getcontentpane (). Add (ScrollPane, Borderlayout.center);      //Add button to append text into the text area      JPanel southpanel = new Jpane L ();      JButton Insertbutton = new JButton ("Calculate p-point coordinates");      Insertbutton.addactionlistener (New ActionListener ()          {             public void actionperformed (ActionEvent event)              {          //coordinates initialization                 double x1= Double.valueof (A_x.gettext ()). Doublevalue ();                 double y1=double.valueof (A_y.gettext ()). Doublevalue ();                 double x2=double.valueof (B_x.gettext ()). Doublevalue ();                 double y2=double.valueof (B_ Y.gettext ()). Doublevalue ();                double x3=double.valueof (C_x.gettext ()). Doublevalue ();                 double y3=double.valueof (C_y.gettext ()). Doublevalue ();                 double d_ap=double.valueof (Dap.gettext ()). Doublevalue ();                double D_BP= Double.valueof (Dbp.gettext ()). Doublevalue ();                 double d_cp=double.valueof (Dcp.gettext ()). Doublevalue ();                          //a, B, P                  double d_ab=math.sqrt ( Math.pow ((X1-X2), 2) +math.pow ((Y1-y2), 2);                 doubleα_bap=math.acos ((D_AB*D_AB+D_AP*D_AP-D_BP*D_BP)/(2*D_AB*D_AP));                 //doubleα_abp=math.acos (d_ab*d_ab+d_bp*d_ BP-D_AP*D_AP)/2*d_ab*d_bp);                doubleα_ab=90-math.atan (Math.Abs (y2-y1)/math.abs (x2-x1));                 Doubleα_AP=α_AB-α_BAP;                 double Xp1=x1+d_ap*math.cos (Α_AP);                 double yp1=y1+d_ap*math.sin (Α_AP);                          //b, C, p                 double d_bc=math.sqrt (Math.pow (X3-X2), 2) +math.pow ((Y3-y2), 2);                 Doubleα_cbp=math.acos ((D_BC*D_BC+D_BP*D_BP-D_CP*D_CP)/(2*D_BC*D_BP));                 //doubleα_bcp=math.acos ((D_BC*D_BC+D_CP*D_CP-D_BP*D_BP)/2*D_BC *D_CP);                doubleα_bc=90- Math.atan (Math.Abs (y2-y3)/math.abs (x2-x3));                 Doubleα_BP=α_BC-α_CBP;                 double Xp2=x1+d_bp*math.cos (Α_BP);            &NBsp;    double Yp2=y1+d_bp*math.sin (Α_BP);                                   textarea.append ("===== distance ahead Rendezvous = = =" + "\ n" + "reference value 1:" + "(" +xp1+ "," +yp1+ ")"                          +   "\ n" + "reference value 2:" + "(" +xp2+ "," +yp2+ ")"                          +  "\ n" + "error distance approx:" +math.round (Miss (XP1,YP1 , XP2,YP2)) + "M");           }             public double Miss (double xp1,double yp1,double xp2,double YP2) {                 return math.sqrt (Math.pow (xp1-XP2), 2) +math.pow ((YP1-YP2), 2));           }             public double convert (String input) {                 double a=double.valueof (Input.split ("°") [0]). Doublevalue ();                double b= Double.valueof (Input.split ("°") [1].split ("'") [0]). Doublevalue ();                 return a+b/60;            }        });     Add (Insertbutton, Borderlayout.south);      pack ();  }}

test.java

Package Text;import Java.awt.*;import javax.swing.*;p ublic class test{   public static void Main (string[] args )    {      Eventqueue.invokelater (New Runnable ()           {            public void run ()              {                JFrame frame = new Distance forward rendezvous ();                Frame.settitle ("Distance ahead Rendezvous");                frame.setdefaultcloseoperation (jframe.exit_on_close);                frame.setvisible (True);            }        });  }} 

Iii. Results of operation

Download: Distance forward Rendezvous algorithm Java project package

JAVA: Distance forward intersection algorithm GUI implementation