making polygon with available co-ordinates

i have attached a screen-capture of my drwaing in the attached word file.( m also attaching the .dwg file named mod.dwg). i found the .lsp file for getting the intersection points between red and white lines ( these may be intersection between white and white lines or between red and red lines at some places). I have the .lsp file for obtaining the co-ordinates for all intersection points in .txt format. now my task is to get a .txt file. containing the points of each quadrilaterals (or triangles at some places) . like i have co-ordinates of all points , each point is assigned a number now( for their identity). now i want numbers assigned to the quadrilateral, made by these points .( taking points in anticlockwise manner)

like----

POINTS

16, 10.8699, -0.0174275

17, 10.8712, -0.0174672

18, 10.8724, -0.0175068

19, 10.8763, -0.0176307

20, 10.8856, -0.0179275

21, 10.8617, -0.0335175

22, 10.8634, -0.0336126

23, 10.865, -0.033699

24, 10.8665, -0.0337854

25, 10.8679, -0.0338632

26, 10.8693, -0.033941

27, 10.8706, -0.0340101

28, 10.8718, -0.0340793

29, 10.8757, -0.0342953

30, 10.8849, -0.0348095

31, 10.8608, -0.0478232

32, 10.8626, -0.0479505

33, 10.8641, -0.0480641

34, 10.8657, -0.0481776

35, 10.8671, -0.0482798

36, 10.8684, -0.048382

37, 10.8697, -0.0484728

38, 10.8709, -0.0485637

39, 10.8748, -0.0488475

I already have the point set now i want quadrilaterals' set. like

the first column is numbers assigned for quadrilaterals identity.

rest four columns are the identity number of the vertices of quadrilaterals (taken in anti-clockwise order).

1, 1, 11, 12, 2

2, 11, 21, 22, 12

3, 21, 31, 32, 22

4, 31, 41, 42, 32

5, 41, 51, 52, 42

6, 51, 61, 62, 52

7, 61, 71, 72, 62

8, 71, 81, 82, 72

9, 81, 91, 92, 82

for a triangular polygon

10, 31, 57, 32, 31

PLEASE PROVIDE ME THE SOLUTION .

IF ANY EXTRA SOLUTION IS NEEDED PLZ INFORM ME.

ujjwalkuma@gmail.com

mod.dwg

problem.doc