io_export_ogreDotScene.py 文件源码

def isRotIdentity( self ):
        # if the angle is very close to zero, or the axis is not unit length,
        if abs(self.rot.angle) < 0.0001 or abs(self.rot.axis.length - 1.0) > 0.001:
            # treat it as a zero rotation
            return True
        return False