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_LinkState.py

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"""autogenerated by genmsg_py from LinkState.msg. Do not edit."""
import roslib.message
import struct

import geometry_msgs.msg

class LinkState(roslib.message.Message):
  _md5sum = "0818ebbf28ce3a08d48ab1eaa7309ebe"
  _type = "gazebo_msgs/LinkState"
  _has_header = False #flag to mark the presence of a Header object
  _full_text = """# @todo: FIXME: sets pose and twist of a link.  All children link poses/twists of the URDF tree are not updated accordingly, but should be.
string link_name            # link name, link_names are in gazebo scoped name notation, [model_name::body_name]
geometry_msgs/Pose pose     # desired pose in reference frame
geometry_msgs/Twist twist   # desired twist in reference frame
string reference_frame      # set pose/twist relative to the frame of this link/body
                            # leave empty or "world" or "map" defaults to world-frame

================================================================================
MSG: geometry_msgs/Pose
# A representation of pose in free space, composed of postion and orientation. 
Point position
Quaternion orientation

================================================================================
MSG: geometry_msgs/Point
# This contains the position of a point in free space
float64 x
float64 y
float64 z

================================================================================
MSG: geometry_msgs/Quaternion
# This represents an orientation in free space in quaternion form.

float64 x
float64 y
float64 z
float64 w

================================================================================
MSG: geometry_msgs/Twist
# This expresses velocity in free space broken into it's linear and angular parts. 
Vector3  linear
Vector3  angular

================================================================================
MSG: geometry_msgs/Vector3
# This represents a vector in free space. 

float64 x
float64 y
float64 z
"""
  __slots__ = ['link_name','pose','twist','reference_frame']
  _slot_types = ['string','geometry_msgs/Pose','geometry_msgs/Twist','string']

  def __init__(self, *args, **kwds):
    """
    Constructor. Any message fields that are implicitly/explicitly
    set to None will be assigned a default value. The recommend
    use is keyword arguments as this is more robust to future message
    changes.  You cannot mix in-order arguments and keyword arguments.
    
    The available fields are:
       link_name,pose,twist,reference_frame
    
    @param args: complete set of field values, in .msg order
    @param kwds: use keyword arguments corresponding to message field names
    to set specific fields. 
    """
    if args or kwds:
      super(LinkState, self).__init__(*args, **kwds)
      #message fields cannot be None, assign default values for those that are
      if self.link_name is None:
        self.link_name = ''
      if self.pose is None:
        self.pose = geometry_msgs.msg.Pose()
      if self.twist is None:
        self.twist = geometry_msgs.msg.Twist()
      if self.reference_frame is None:
        self.reference_frame = ''
    else:
      self.link_name = ''
      self.pose = geometry_msgs.msg.Pose()
      self.twist = geometry_msgs.msg.Twist()
      self.reference_frame = ''

  def _get_types(self):
    """
    internal API method
    """
    return self._slot_types

  def serialize(self, buff):
    """
    serialize message into buffer
    @param buff: buffer
    @type  buff: StringIO
    """
    try:
      _x = self.link_name
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
      _x = self
      buff.write(_struct_13d.pack(_x.pose.position.x, _x.pose.position.y, _x.pose.position.z, _x.pose.orientation.x, _x.pose.orientation.y, _x.pose.orientation.z, _x.pose.orientation.w, _x.twist.linear.x, _x.twist.linear.y, _x.twist.linear.z, _x.twist.angular.x, _x.twist.angular.y, _x.twist.angular.z))
      _x = self.reference_frame
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
    except struct.error as se: self._check_types(se)
    except TypeError as te: self._check_types(te)

  def deserialize(self, str):
    """
    unpack serialized message in str into this message instance
    @param str: byte array of serialized message
    @type  str: str
    """
    try:
      if self.pose is None:
        self.pose = geometry_msgs.msg.Pose()
      if self.twist is None:
        self.twist = geometry_msgs.msg.Twist()
      end = 0
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      self.link_name = str[start:end]
      _x = self
      start = end
      end += 104
      (_x.pose.position.x, _x.pose.position.y, _x.pose.position.z, _x.pose.orientation.x, _x.pose.orientation.y, _x.pose.orientation.z, _x.pose.orientation.w, _x.twist.linear.x, _x.twist.linear.y, _x.twist.linear.z, _x.twist.angular.x, _x.twist.angular.y, _x.twist.angular.z,) = _struct_13d.unpack(str[start:end])
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      self.reference_frame = str[start:end]
      return self
    except struct.error as e:
      raise roslib.message.DeserializationError(e) #most likely buffer underfill


  def serialize_numpy(self, buff, numpy):
    """
    serialize message with numpy array types into buffer
    @param buff: buffer
    @type  buff: StringIO
    @param numpy: numpy python module
    @type  numpy module
    """
    try:
      _x = self.link_name
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
      _x = self
      buff.write(_struct_13d.pack(_x.pose.position.x, _x.pose.position.y, _x.pose.position.z, _x.pose.orientation.x, _x.pose.orientation.y, _x.pose.orientation.z, _x.pose.orientation.w, _x.twist.linear.x, _x.twist.linear.y, _x.twist.linear.z, _x.twist.angular.x, _x.twist.angular.y, _x.twist.angular.z))
      _x = self.reference_frame
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
    except struct.error as se: self._check_types(se)
    except TypeError as te: self._check_types(te)

  def deserialize_numpy(self, str, numpy):
    """
    unpack serialized message in str into this message instance using numpy for array types
    @param str: byte array of serialized message
    @type  str: str
    @param numpy: numpy python module
    @type  numpy: module
    """
    try:
      if self.pose is None:
        self.pose = geometry_msgs.msg.Pose()
      if self.twist is None:
        self.twist = geometry_msgs.msg.Twist()
      end = 0
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      self.link_name = str[start:end]
      _x = self
      start = end
      end += 104
      (_x.pose.position.x, _x.pose.position.y, _x.pose.position.z, _x.pose.orientation.x, _x.pose.orientation.y, _x.pose.orientation.z, _x.pose.orientation.w, _x.twist.linear.x, _x.twist.linear.y, _x.twist.linear.z, _x.twist.angular.x, _x.twist.angular.y, _x.twist.angular.z,) = _struct_13d.unpack(str[start:end])
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      self.reference_frame = str[start:end]
      return self
    except struct.error as e:
      raise roslib.message.DeserializationError(e) #most likely buffer underfill

_struct_I = roslib.message.struct_I
_struct_13d = struct.Struct("<13d")

---

gazebo_msgs
Author(s): John Hsu
autogenerated on Sat Mar 2 13:38:29 2013