tolerance = abs(float(tolerance))
if(tolerance > 0):
    #get the difference of every bearing change
    #if difference is within tolerance, print
    #otherwise, ignore
    diff = float(previous_bearing) - float(bearing)

    #print abs(diff),tolerance
    if(float(previous_bearing) != float(bearing)):
        if(abs(diff) <= tolerance):
            #print ("%d,%s,%s,%s\n" % (i,easting,northing,bearing)),
            print abs(diff),tolerance
            new_file.write("%f,%f,%s\n" % (abs(diff),tolerance,bearing))
            #new_file.write("%d,%s,%s,%s\n" % (i,easting,northing,bearing))

elif(float(previous_bearing) != float(bearing)):
    #print ("%d,%s,%s,%s\n" % (i,easting,northing,bearing)),
    new_file.write("%d,%s,%s,%s\n" % (i,easting,northing,bearing))