From: Tomas Musil <tomik.musil@gmail.com>
Date: Sun, 14 Oct 2012 15:21:33 +0000 (+0200)
Subject: better manual mode, grid-fitting preparation
X-Git-Url: http://git.tomasm.cz/imago.git/commitdiff_plain/f6002686fef1bd826f3a1777998416b93d909d56?hp=b1b5232a3561e92a40a26ff586ee3496b080692c

better manual mode, grid-fitting preparation
---

diff --git a/gridf.py b/gridf.py
new file mode 100644
index 0000000..c8f4b90
--- /dev/null
+++ b/gridf.py
@@ -0,0 +1,8 @@
+from manual import lines as g_grid, l2ad
+from intrsc import intersections_from_angl_dist
+
+def find(lines, size, l1, l2):
+    c = intersections_from_angl_dist(lines, size)
+    corners = [c[0][0], c[0][-1], c[-1][0], c[-1][-1]]
+    grid = g_grid(corners)
+    return grid
diff --git a/imago.py b/imago.py
index c053a7f..1e5166c 100755
--- a/imago.py
+++ b/imago.py
@@ -17,6 +17,7 @@ import im_debug
 import linef
 import manual
 import intrsc
+import gridf
 
 def main():
     """Main function of the program."""
@@ -52,7 +53,7 @@ def main():
                               image.size[1])), Image.ANTIALIAS)
     do_something = im_debug.show
     if args.saving:
-        do_something = imsave("saved/" + args.file[0][:-4] + "_" +
+        do_something = imsave("saved/" + args.files[0][:-4] + "_" +
                                str(image.size[0]) + "/").save
 
     if args.manual_mode:
@@ -63,6 +64,13 @@ def main():
             return 1
     else:
         lines = linef.find_lines(image, show_all, do_something, verbose)
+        grid = gridf.find(lines, image.size, None, None)
+        if show_all:
+            im_g = image.copy()
+            draw = ImageDraw.Draw(im_g)
+            for l in grid[0] + grid[1]:
+                draw.line(l, fill=(64, 255, 64), width=1)
+            do_something(im_g)
 
     board = intrsc.board(image, lines, show_all, do_something)
 
diff --git a/linef.py b/linef.py
index fbd1368..34c4d07 100755
--- a/linef.py
+++ b/linef.py
@@ -105,7 +105,7 @@ def find_lines(image, show_all, do_something, verbose):
     for line in [l for s in lines for l in s]:
         draw.line(line_from_angl_dist(line, image.size), fill=(120, 255, 120))
     if show_all:
-        do_something(image_g, "the grid")
+        do_something(image_g, "lines")
    
     return lines
 
diff --git a/manual.py b/manual.py
index 55dfdd0..1d06035 100644
--- a/manual.py
+++ b/manual.py
@@ -2,7 +2,7 @@
 
 import pygame
 import Image, ImageDraw
-from math import atan, sin, cos, pi
+from math import atan, sin, cos, pi, sqrt, acos, copysign
 
 class UserQuitError(Exception):
     pass
@@ -72,8 +72,12 @@ def find_lines(im_orig):
         clock.tick(15)
 
 def lines(corners):
-    cor_d = sorted([(corners[0][0] * c[1] - c[0] * corners[0][1], c) for c in
-                    corners[1:]])
+    #TODO Error on triangle 
+    cor_d = [(corners[0], (c[0] - corners[0][0], c[1] - corners[0][1]), c) for c in
+             corners[1:]]
+    cor_d = [(float(a[0] * b[0] + a[1] * b[1]) / (sqrt(a[0] ** 2 + a[1] ** 2) *
+              sqrt(b[0] **2 + b[1] ** 2)), a[0] * b[1] - b[0] * a[1], c) for a, b, c in cor_d]
+    cor_d = sorted([(copysign(acos(a), b), c) for a, b, c in cor_d])
     corners = [corners[0]] + [c for _, c in cor_d]
     return (_lines(corners, 0) + [(corners[0], corners[3]),
                                   (corners[1], corners[2])],
@@ -89,8 +93,14 @@ def _lines(corners, n):
         x = half_line(corners)
         c = intersection(line(x[0], corners[2]), line(corners[1], corners[3]))
         d = intersection(line(corners[0], corners[3]), line(corners[1], corners[2]))
-        l = (intersection(line(corners[0], corners[1]), line(c,d)),
-             intersection(line(corners[2], corners[3]), line(c,d)))
+        if d:
+            l = (intersection(line(corners[0], corners[1]), line(c,d)),
+                 intersection(line(corners[2], corners[3]), line(c,d)))
+        else:
+            lx = line(c, (c[0] + corners[0][0] - corners[3][0], 
+                      c[1] + corners[0][1] - corners[3][1]))
+            l = (intersection(line(corners[0], corners[1]), lx),
+                 intersection(line(corners[2], corners[3]), lx))
         l2 = half_line([corners[0], l[0], l[1], corners[3]])
         if n == 1:
             return ([l, l2] + _lines([l[0], l2[0], l2[1], l[1]], 2)