JAVA: Distance to the rear intersection algorithm GUI implementation

Compilation Environment:

Operating system: Win8.1 64-bit

IDE platform: Visual Studio Ultimate

First, the principle

The distance s1,s2,s3 is observed on the point p to be measured, and the plane coordinates of P are determined:

Second, the Code implementation

Distance to the rear intersection. java

Package Text;import Java.awt.*;import Java.awt.event.*;import java.math.*;import javax.swing.*;import   Javax.swing.border.border;public class distance rear Rendezvous extends jframe{public static final int textarea_rows = 20;    public static final int textarea_columns = 40;      Public distance rear 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");      Final JTextField c_x = new JTextField ("37163");      Final JTextField c_y = new JTextField ("16046");      Final JTextField s_1 = new JTextField ("200");      Final JTextField s_2 = new JTextField ("200");      Final JTextField S_3 = new JTextField ("200");      JPanel Northpanel = new JPanel ();      JPanel Westpanel = new JPanel ();      JLabel pic= new JLabel ();      Pic.seticon (New ImageIcon ("g:/workplace/distance from the rear intersection/4.png"));      Westpanel.add (pic); Getcontentpane (). Add (Westpanel, BorderLayout.WEST);    JPanel northPane2 = new JPanel ();          Distance to the front intersection northpane2.setlayout (New GridLayout (3, 4));          Northpane2.add (New JLabel ("a_x:", Swingconstants.center));          Northpane2.add (a_x);          Northpane2.add (New JLabel ("A_y:", Swingconstants.center));          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 ("S1:", Swingconstants.center));          Northpane2.add (S_1);          Northpane2.add (New JLabel ("S2:", Swingconstants.center));          Northpane2.add (s_2);          Northpane2.add (New JLabel ("S3:", Swingconstants.center));  Northpane2.add (S_3);    Border etched = Borderfactory.createetchedborder ();      Border titled = Borderfactory.createtitledborder (Etched, "distance to the rear rendezvous");      Northpanel.setborder (titled);            Getcontentpane (). Add (NorthPane2, Borderlayout.north);      Final JTextArea TextArea = new JTextArea (20,40);      JScrollPane ScrollPane = new JScrollPane (TextArea);      Getcontentpane (). Add (ScrollPane, borderlayout.center);      Add button to append text into the text area JPanel Southpanel = new JPanel ();      JButton Insertbutton = new JButton ("Calculate p-point coordinates");            Insertbutton.addactionlistener (new ActionListener () {public void actionperformed (ActionEvent event)            {//coordinates initialize 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 s1=double.valueof (S_1.gettext ()). Doublevalue ();            Double s2=double.valueof (S_2.gettext ()). Doublevalue ();                      Double s3=double.valueof (S_3.gettext ()). Doublevalue ();            A, B, P Double d_ab=math.sqrt (Math.pow (X1-X2), 2) +math.pow ((Y1-y2), 2));            Doubleα_ab=math.acos ((D_AB*D_AB+S1*S1-S2*S2)/(2*D_AB*S1));            Doubleα_1=math.atan (Math.Abs (y2-y1)/math.abs (x2-x1));            Doubleα_2=α_ab-α_1;            Double Xp1=x1+s1*math.cos (α_2);                      Double Yp1=y1-s1*math.sin (α_2);            B, C, P Double d_bc=math.sqrt (Math.pow (X3-X2), 2) +math.pow ((Y3-y2), 2));            Doubleα_bc=math.acos ((D_BC*D_BC+S2*S2-S3*S3)/(2*D_BC*S2));            Doubleα_3=math.atan (Math.Abs (y3-y2)/math.abs (x3-x2));            Doubleα_4=α_bc-α_3;            Double Xp2=x1+s1*math.cos (α_4); Double Yp2=y1-s1*maTh.sin (Α_4); Textarea.append ("===== distance from the rear 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");            Textarea.append ("Test:" +β_2); } public double Miss (double xp1,double yp1,double xp2,double YP2) {return math.sqrt (Math.pow (XP1-XP            2), 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 from the rear intersection ();               Frame.settitle ("distance from the rear intersection");               Frame.setdefaultcloseoperation (jframe.exit_on_close);               Frame.setvisible (True);}}         );}   }

Iii. Results of operation

Download: Distance from the rear Rendezvous algorithm Java Project package

JAVA: Distance to the rear intersection algorithm GUI implementation