1 files changed, 13 insertions, 2 deletions
diff --git a/util/Geo.py b/util/Geo.py
index be3e93e..0dde80b 100644
--- a/util/Geo.py
+++ b/util/Geo.py
@@ -4,20 +4,31 @@ from bisect import *
 import random
 def pointWithinBoundingBox(point, bb): #this could be in 4 lines, but I'm lazy.
     return sum([(point[i % 2] <= bb[i]) == (i>1) for i in range(4)]) == 4 
+
 def addLocations(l1,l2):
     return tuple([l1[i]+l2[i] for i in range(len(l1))])
+
 def gaussian(x,height,center,width):
     a=height
     b=center
     c=width
     return a*math.exp(-((x-b)**2)/(2*c**2))
+
 def dist(l1, l2):
-    return math.sqrt((l1[0]-l2[0])**2+(l1[1]-l2[1])**2)
-    #return math.sqrt(sum([(l1[i]-l2[i])**2 for i in range(len(l1))]))
+    return math.sqrt((l1[0]-l2[0])**2+(l1[1]-l2[1])**2) #For speed
+
 def randomLoc(boundingBox): #TODO: make less shitty
     loc = []
     loc.append(random.randint(0, boundingBox[0]))
     loc.append(random.randint(0, boundingBox[1]))
     return tuple(loc)
+
 def approxexp(x):
+    """Approximates exp with a 3 term Taylor Series."""
     return 1+x+x**2/2+x**3/6
+
+def windtrail(x,y,height,center,width):
+    a=height
+    b=center
+    c=width
+    return a*((math.exp(-((x-b))/(c)))**2)*(math.exp(-((y))/(0.2*c)))**2