def getInclination(end, start):
 if ((end == None) or (start == None)):
  return 0.0
 endMinusStart = (end - start)
 return math.atan2(endMinusStart.z, abs(endMinusStart.dropAxis()))

def getInclination ( end , start ) : if ( ( end == None ) or ( start == None ) ) : return 0.0 endMinusStart = ( end - start ) return math . atan2 ( endMinusStart . z , abs ( endMinusStart . dropAxis ( ) ) )
get inclination .