I am using Processing core libraries for java to plot points given in a text file. The number of points usually range from 200-300. The issue is the points are plotted at the top of the sketch, instead of getting plotted at the top.

1. private ArrayList<PointXY> pointsList; 
   

2. //private File pointsFile; BoundingBox box; 
   

3. TraceGroup tg; 

4. public void setup(){ size(50, 50); 
   

5. strokeWeight(3);

6.  //noSmooth(); background(255); 
   

7. if (frame != null) { frame.setResizable(true); }

8.  selectInput("Select a file to Process", "fileSelected"); 
   

9. } 

10. public void draw(){ 

11. if(tg != null)

12. {

13.  for(Trace t : tg.getTraceList())

14.  //loop iterates though all the points 

15. for(PointXY p : t.getTracePoints())

16. { 

17. System.out.println(p.getX() + " " + p.getY()); 
    

18. point(p.getX(), getY());

19.  } 
    

20. }

21.  }

22.  //callback- filechooser 

23. public void fileSelected(File file)

24. { pointsList = PenFileReader.readPointsFromFile(file);

25.  System.out.print(pointsList.size());

26.  //resizeFrameForCharDisplay() takes care of resizing the sketch window 
    

27. //according to the points read. uses bounding bounding box of the points 
    

28. //to resize the window.

29.  tg = resizeFrameForCharDisplay(pointsList); 
    

30. }

31.