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procedure(fonction_ordre()

coord_concatener = '()
	path_ordre = '()

cv = geGetEditCellView() 
	win_id = getCurrentWindow()

segments = geGetSelSet()

for(i 0 length(segments)-1
	    points='() 
	    id = nth(i segments)
	    points = id~>points
	    nb_points = id~>nPoints
	    for(j 0 nb_points-1-1
		coord_concatener = append1(coord_concatener nth(j points))
	    )
	    ; dernier point du dernier segment	
	    if(i == length(segments)-1 then
	       coord_concatener = append1(coord_concatener nth(nb_points-1 points))	
	    )
	)

coord_concatener = '()
	for(i 0 length(segments)-1
	    points='() 
	    id = nth(i segments)
	    points = id~>points
	    nb_points = id~>nPoints
    	    coord_concatener = append1(coord_concatener car(points))
	    coord_concatener= append1(coord_concatener cadr(points))	
	)

;; rechercher x le plus petit et y le plus petit

liste_x = '()
	liste_y = '()

for(i 0 length(coord_concatener)-1
	    liste_x = append1(liste_x car(nth(i coord_concatener)))
	    liste_y = append1(liste_y cadr(nth(i coord_concatener)))
	)
	
	mini_x = minimum(liste_x)
	maxi_x = maximum(liste_x)

mini_y = minimum(liste_y)
	maxi_y = maximum(liste_y)

for(i 0 length(segments)-1
	    test = leIsPointInsideFig(nth(i segments) list(mini_x mini_y)) 
	    if(test == t then
		id_path_detecter = nth(i segments)
		path_ordre = append1(path_ordre id_path_detecter) 
	      )
	)
	
	tmp = '()
	tmp = remove(id_path_detecter segments)

;; replacer les points dans le sens de parcours
	points = id_path_detecter~>points
	n_pts = id_path_detecter~>nPoints

test = equal(nth(0 points) list(mini_x mini_y) )
	if(test == t then
	   rien = 0
	)
	test = equal(nth(n_pts-1 points) list(mini_x mini_y) )
	if(test == t then
	   ;; faire un reverse de la liste des points	
	   reverse_pts = reverse(points)
	   id_path_detecter~>points = reverse_pts
	)

for(i 0 length(tmp)-1
	
	    id_search = id_path_detecter
	    bBox = id_search~>bBox  
	    figList = dbProduceOverlap(cv bBox)
	   
    	    figList = remove(id_search figList)
	    if(length(figList) == 1 then
	       id_path_detecter = nth(0 figList)
               path_ordre = append1(path_ordre id_path_detecter)

else
	       un = nth(0 figList)
	       res = setof( x path_ordre (x == un ) )
	       if(res == nil then
		      id_path_detecter = nth(0 figList)
                      path_ordre = append1(path_ordre id_path_detecter) 
	       )			
	       
	       deux = nth(1 figList)
	       res = setof( x path_ordre (x == deux ) )
	       if(res == nil then
		  id_path_detecter = nth(1 figList)
                  path_ordre = append1(path_ordre id_path_detecter) 
	       )

)
	)

liste_points = '()

first = list(mini_x mini_y)

liste_points = append1(liste_points first )

for(i 0 length(path_ordre)-1-1

id1 = nth(i path_ordre)
   	   p1 = car(id1~>points)
	   p2 = cadr(id1~>points)
	   xa = car(p1)
	   ya = cadr(p1)
	   xb = car(p2)
	   yb = cadr(p2)

id2 = nth(i+1 path_ordre)
   	   p1 = car(id2~>points)
	   p2 = cadr(id2~>points)
	   xc = car(p1)
	   yc = cadr(p1)
	   xd = car(p2)
	   yd = cadr(p2)

tampon = '() 
	   tampon = calculer_intersection_segment(xa ya xb yb xc yc xd yd)
	   liste_points = append1(liste_points tampon)

)

last_path = nth(0 reverse(path_ordre))
        p1 = car(last_path~>points)
        p2 = cadr(last_path~>points)
	
	
	last_point = nth(0 reverse(liste_points))

test = equal(p1 last_point )
	if(test == t then
	   liste_points = append1(liste_points p2) 	
	)

test = equal(p2 last_point )
	if(test == t then
	   liste_points = append1(liste_points p1) 	
	)

printf("**** : %L \n" liste_points )
	printf("**** : %L \n" path_ordre)

)