INIT_QUADTREE(256)
DISPLAY()
CREATE_LINE(L1,23,24,56,56)
LINE_SEARCH(l1)
LINE_SEARCH(L1)
INSERT(L1)
LIST_LINES()
DISPLAY()
DELETE_LINE(L1)
DELETE_POINT(23,24)
WINDOW(0,0,100,100)
NEAREST_NEIGHBOR(0,0)
FIND_POLYGON(0,0)
CHECK_DELAUNAY()
INSERT_POINT_DELAUNAY(50,50)
DELETE_POINT_DELAUNAY(20,35,0,0,0,100,100,0)