fix grid orientation

diff --git a/src/gridf3.py b/src/gridf3.py
index 89c24a9..34e2315 100644 (file)
--- a/src/gridf3.py
+++ b/src/gridf3.py
@@ -106,7 +106,12 @@ def gen_corners(d1, d2):
         c2 = [p for p in d2.points if p in c1.l1.points][0]
         c3 = [p for p in d1.points if p in c2.l2.points][0]
         c4 = [p for p in d2.points if p in c3.l1.points][0]
-        yield map(lambda p: p.to_tuple(), [c1, c2, c3, c4])
+        try:
+            yield manual.lines(map(lambda p: p.to_tuple(), [c2, c1, c3, c4]))
+        except TypeError:
+            pass
+            # the square was too small to fit 17 lines inside
+            # TODO define SquareTooSmallError or something
 
 def dst(p, l):
     (x, y), (a, b, c) = p, ransac.points_to_line(*l)
@@ -145,12 +150,16 @@ def find(lines, size, l1, l2, bounds, hough, show_all, do_something, logger):
     diag2 = Line(line2)
     diag2.points = ransac.filter_near(data, diag2, 2)
 
-    grids = map(manual.lines, list(gen_corners(diag1, diag2)))
+    grids = list(gen_corners(diag1, diag2))
 
     sc, grid = min(map(lambda g: (score(sum(g, []), data), g), grids))
     
     grid_lines = [[l2ad(l, size) for l in grid[0]], 
                   [l2ad(l, size) for l in grid[1]]]
+    grid_lines[0].sort(key=lambda l: l[1])
+    grid_lines[1].sort(key=lambda l: l[1])
+    if grid_lines[0][0][0] > grid_lines[1][0][0]:
+        grid_lines = grid_lines[1], grid_lines[0]
 
     return grid, grid_lines