JOGL-2.java

import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.awt.GLCanvas;
import com.jogamp.opengl.glu.GLU;
import java.io.File;
import java.io.FileNotFoundException;
import javax.swing.JFrame;
import java.util.Scanner;
public class Assignment2 implements GLEventListener{
   
	private GLU glu;
   @Override
   public void display(GLAutoDrawable drawable) {
      final GL2 gl = drawable.getGL().getGL2();
      File file = new File ("randomValues.txt");
      try {
    	  Scanner scan= new Scanner(file);
    	  gl.glBegin(GL2.GL_POINTS);
    	  while (scan.hasNext()) {
    		  double x = scan.nextDouble();
    		  double y = scan.nextDouble();
    		  gl.glVertex2d(x,y);
    	  }
    	  gl.glEnd();
      }
      catch (FileNotFoundException e) {
    	  e.printStackTrace();
      }
      
      DDA(gl, 4,4,7,10);
      
   }
   @Override
   public void dispose(GLAutoDrawable arg0) {
      //method body
   }
   
   @Override
   public void init(GLAutoDrawable gld) {
       GL2 gl = gld.getGL().getGL2();
       glu = new GLU();

       gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
       gl.glViewport(-100, -50, 50, 100);
       gl.glMatrixMode(GL2.GL_PROJECTION);
       gl.glLoadIdentity();
       glu.gluOrtho2D(-100.0, 100.0, -100.0, 100.0);
   }

   

   @Override
   public void reshape(GLAutoDrawable arg0, int arg1, int arg2, int arg3, int arg4) {
      // method body
   }
   
   
   public void DDA(GL2 gl, float x1, float y1, float x2, float y2) {
       
       gl.glPointSize(3.0f);
       gl.glColor3d(1, 0, 0);
       
     //write your own code
      
    }

   
   
   
   
   
   public static void main(String[] args) {
      //getting the capabilities object of GL2 profile
      final GLProfile profile = GLProfile.get(GLProfile.GL2);
      GLCapabilities capabilities = new GLCapabilities(profile);
      // The canvas 
      final GLCanvas glcanvas = new GLCanvas(capabilities);
      Assignment2 l = new Assignment2();
      glcanvas.addGLEventListener(l);
      glcanvas.setSize(400, 400);
      //creating frame
      final JFrame frame = new JFrame ("straight Line");
      //adding canvas to frame
      frame.getContentPane().add(glcanvas);
      frame.setSize(frame.getContentPane().getPreferredSize());
      frame.setVisible(true);
   }//end of main
}//end of classimport javax.media.opengl.GL2;