def METHOD_NAME(self,T,length=0.1):
    """draws a set of arrows around a coordinate system
    """
    return [self.env.drawarrow(p1=T[0:3,3],p2=T[0:3,3]+length*T[0:3,0],linewidth=0.01,color=[1.0,0.0,0.0]),
            self.env.drawarrow(p1=T[0:3,3],p2=T[0:3,3]+length*T[0:3,1],linewidth=0.01,color=[0.0,1.0,0.0]),
            self.env.drawarrow(p1=T[0:3,3],p2=T[0:3,3]+length*T[0:3,2],linewidth=0.01,color=[0.0,0.0,1.0])]