OpenSim.Region.Framework.Scenes.Scene.GetLandData C# (CSharp) Method

        public LandData GetLandData(float x, float y)
        {
            return LandChannel.GetLandObject(x, y).LandData;
        }

        /// Callback for a client request for ParcelVoiceInfo
        public string ParcelVoiceInfoRequest(Scene scene, string request, string path, string param,
                                             UUID agentID, Caps caps)
        {
            m_log.Info("[MurmurVoice]: Calling ParcelVoiceInfoRequest...");
            try
            {
                ScenePresence avatar = scene.GetScenePresence(agentID);

                LLSDParcelVoiceInfoResponse parcelVoiceInfo;
                string channel_uri = String.Empty;

                if (null == scene.LandChannel)
                    throw new Exception(String.Format("region \"{0}\": avatar \"{1}\": land data not yet available",
                                                      scene.RegionInfo.RegionName, avatar.Name));

                // get channel_uri: check first whether estate
                // settings allow voice, then whether parcel allows
                // voice, if all do retrieve or obtain the parcel
                // voice channel
                LandData land = scene.GetLandData(avatar.AbsolutePosition.X, avatar.AbsolutePosition.Y);

                m_log.DebugFormat("[MurmurVoice]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": request: {4}, path: {5}, param: {6}",
                                  scene.RegionInfo.RegionName, land.Name, land.LocalID, avatar.Name, request, path, param);

                if ( ((land.Flags & (uint)ParcelFlags.AllowVoiceChat) > 0) && scene.RegionInfo.EstateSettings.AllowVoice )
                {
                    Agent agent = m_manager.Agent.GetOrCreate(agentID);

                    string RegionName  = scene.RegionInfo.RegionName;
                    if(m_RegionParents.ContainsKey(RegionName))
                        {
                        int RParent = m_RegionParents[RegionName];

                        agent.channel = m_manager.Channel.GetOrCreate(ChannelName(scene, land),RParent);

                    // Host/port pair for voice server
                        channel_uri = String.Format("{0}:{1}", m_murmurd_exthost, m_murmurd_port);

                        m_log.InfoFormat("[MurmurVoice]: {0}", channel_uri);
                        m_callback.AddUserToChan(agent);
                        }
                    else
                        m_log.DebugFormat("[MurmurVoice]: Region Parent channel not found: {0}",RegionName);
                } else {
                    m_log.DebugFormat("[MurmurVoice]: Voice not enabled.");
                }

                Hashtable creds = new Hashtable();
                creds["channel_uri"] = channel_uri;

                parcelVoiceInfo = new LLSDParcelVoiceInfoResponse(scene.RegionInfo.RegionName, land.LocalID, creds);
                string r = LLSDHelpers.SerialiseLLSDReply(parcelVoiceInfo);
                m_log.InfoFormat("[MurmurVoice]: Parcel: {0}", r);

                return r;
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[MurmurVoice]: Exception: " + e.ToString());
                return "<llsd><undef /></llsd>";
            }
        }