--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/poly_utils.py	Wed Apr 03 22:46:39 2013 -0400
@@ -0,0 +1,49 @@
+#! /usr/bin/env python
+'''Various utilities to load data saved by the POLY new output(s)'''
+import sys
+import utils
+from moving import  TimeInterval
+import numpy as np
+
+__metaclass__ = type
+
+# inputs variables	
+#dirname= 'G:/0-phdstart/Code/trial/indicatorsNew/'
+#extension= '-indicatorsNew.csv'
+#indicatorsNames= {1:'Distance',2:'Cosine',3:'collision Course Angle',4:'Velocity Cosine',5:'Velocity Angle',6:'Speed Differential',7:'Collision Probability',8:'Severity Index',9:'TTC'}
+''' min Distance case'''
+dirname= 'G:/0-phdstart/Code/trial/minDistanceIndicator/'
+extension= '-minDistanceInd.csv'
+indicatorsNames= {1:'minDistance'}
+
+def loadNewInteractions(videoFilename,interactionType, roaduserNum1,roaduserNum2, selectedIndicators=[]):
+    '''Loads interactions from the POLY traffic event format'''
+    from events import Interaction 
+    from indicators import SeverityIndicator
+    #filename= dirname + videoFilename + extension
+    filename= dirname + interactionType+ '-' + videoFilename + extension # case of min distance todo: change the saving format to be matched with all outputs
+    file = utils.openCheck(filename)
+    if (not file):
+        return []
+    interactions = []
+    interactionNum = 0
+    data= np.loadtxt(filename)
+    indicatorFrameNums= data[:,0]
+    inter = Interaction(interactionNum, TimeInterval(indicatorFrameNums[0],indicatorFrameNums[-1]), roaduserNum1, roaduserNum2) 
+    inter.addVideoFilename(videoFilename)
+    inter.addInteractionType(interactionType)
+    for key in indicatorsNames.keys():
+        values= {}
+        for i,t in enumerate(indicatorFrameNums):
+            values[t] = data[i,key]
+        inter.addIndicator(SeverityIndicator(indicatorsNames[key], values))
+    if selectedIndicators !=[]:
+        values= {}
+        for i,t in enumerate(indicatorFrameNums):
+            values[t] = [data[i,index] for index in selectedIndicators]
+        inter.addIndicator(SeverityIndicator('selectedIndicators', values))	
+		
+    interactions.append(inter)
+    file.close()
+    return interactions
+