"atomic bomb" commit. Reorganized OpenCV directory structure

samples/python/minarea.py

@@ -0,0 +1,61 @@
+#!/usr/bin/python 
+
+import urllib2
+import cv
+from random import randint
+
+def roundxy(pt):
+    return (cv.Round(pt[0]), cv.Round(pt[1]))
+
+def draw_common(points):
+    success, center, radius = cv.MinEnclosingCircle(points)
+    if success:
+        cv.Circle(img, roundxy(center), cv.Round(radius), cv.CV_RGB(255, 255, 0), 1, cv. CV_AA, 0)
+
+    box = cv.MinAreaRect2(points)
+    box_vtx = [roundxy(p) for p in cv.BoxPoints(box)]
+    cv.PolyLine(img, [box_vtx], 1, cv.CV_RGB(0, 255, 255), 1, cv. CV_AA) 
+
+def minarea_array(img, count):
+    pointMat = cv.CreateMat(count, 1, cv.CV_32SC2)
+    for i in range(count):
+        pointMat[i, 0] = (randint(img.width/4, img.width*3/4),
+                               randint(img.height/4, img.height*3/4))
+
+    cv.Zero(img)
+
+    for i in range(count):
+        cv.Circle(img, roundxy(pointMat[i, 0]), 2, cv.CV_RGB(255, 0, 0), cv.CV_FILLED, cv. CV_AA, 0)
+
+    draw_common(pointMat)
+
+def minarea_seq(img, count, storage):
+    points = [(randint(img.width/4, img.width*3/4), randint(img.height/4, img.height*3/4)) for i in range(count)]
+    cv.Zero(img)
+
+    for p in points:
+        cv.Circle(img, roundxy(p), 2, cv.CV_RGB(255, 0, 0), cv.CV_FILLED, cv. CV_AA, 0)
+
+    draw_common(points)
+
+if __name__ == "__main__":
+    img = cv.CreateImage((500, 500), 8, 3)
+    storage = cv.CreateMemStorage()
+
+    cv.NamedWindow("rect & circle", 1)
+        
+    use_seq = True
+
+    while True: 
+        count = randint(1, 100)
+        if use_seq:
+            minarea_seq(img, count, storage)
+        else:
+            minarea_array(img, count)
+
+        cv.ShowImage("rect & circle", img)
+        key = cv.WaitKey() % 0x100
+        if key in [27, ord('q'), ord('Q')]:
+            break
+
+        use_seq = not use_seq