C#开发BIMFACE系列25 服务端API之获取模型数据10：获取楼层对应面积分区列表

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在《C#开发BIMFACE系列22 服务端API之获取模型数据7：获取多个模型的楼层信息》中，返回的楼层信息结果中包含了楼层的具体信息，其中包含楼层ID。

一个楼层中可能包含多个面积分区，本文介绍如何获取楼层对应面积分区列表。

请求地址：GET https://api.bimface.com/data/v2/files/{fileId}/areas

说明：获取单个模型中单个楼层对应的分区列表。

参数：

请求 path(示例)：https://api.bimface.com/data/v2/files/1211223382064960/areas?floorId=311

请求 header(示例)："Authorization: Bearer dc671840-bacc-4dc5-a134-97c1918d664b"

HTTP响应示例(200)：

{
  "code" : "success",
  "data" : [ {
    "area" : 5.168684733047761E7,
    "boundary" : "",
    "id" : "",
    "levelId" : "",
    "maxPt" : {
      "x" : -4938.068482562385,
      "y" : -3201.59397858169,
      "z" : 0.0
    },
    "minPt" : {
      "x" : -4938.068482562385,
      "y" : -3201.59397858169,
      "z" : 0.0
    },
    "name" : "dining room 4",
    "perimeter" : 28802.013920728663,
    "properties" : [ {
      "group" : "dimension",
      "items" : [ {
        "code" : "perimeter",
        "extension" : "object",
        "key" : "perimeter",
        "orderNumber" : ,
        "unit" : "mm",
        "value" : ,
        "valueType" :
      } ]
    } ],
    "viewName" : "1 1"
  } ],
  "message" : ""
}

封装成对应的C#类：

/// <summary>
///  获取单个模型种单个楼层对应面积分区列表的返回结果类
/// </summary>
public class SingleModelSingleFloorAreas : GeneralResponse<List<Area>>
{

}

其中 Area 类定义为

 /// <summary>
    ///  楼层区域信息
    /// </summary>
    [Serializable]
    public class Area
    {
        /// <summary>
        ///  样例 : 7.256476003661832E7
        /// </summary>
        [JsonProperty("area")]
        public double? AreaValue { get; set; }

        /// <summary>
        ///  边界
        /// </summary>
        [JsonProperty("boundary")]
        public string Boundary { get; set; }

        /// <summary>
        ///  编号
        /// </summary>
        [JsonProperty("id")]
        public string Id { get; set; }

        /// <summary>
        ///  水平线编号
        /// </summary>
        [JsonProperty("levelId")]
        public string LevelId { get; set; }

        [JsonProperty("maxPt")]
        public Coordinate MaxPt { get; set; }

        [JsonProperty("minPt")]
        public Coordinate MinPt { get; set; }

        /// <summary>
        ///  对象名称。例如："dining room 4"
        /// </summary>
        [JsonProperty("name")]
        public string Name { get; set; }

        /// <summary>
        ///  样例 : 40087.80000000279
        /// </summary>
        [JsonProperty("perimeter")]
        public double? Perimeter { get; set; }

        [JsonProperty("properties")]
        public PropertyGroup[] Properties { get; set; }

        /// <summary>
        ///   样例 : "1 1"
        /// </summary>
        [JsonProperty("viewName")]
        public string ViewName { get; set; }

        /// <summary>返回表示当前对象的字符串。</summary>
        /// <returns>表示当前对象的字符串。</returns>
        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();
            if (Properties != null && Properties.Length > )
            {
                foreach (var property in Properties)
                {
                    sb.AppendLine(property.ToString());
                }
            }

            return string.Format("[area={0}, boundary={1}, id={2}, levelId={3}, maxPt={4}, minPt={5}, name={6}, perimeter={7}, properties={8}, viewName={9}]",
                                  AreaValue,  Boundary, Id, LevelId, MaxPt, MinPt, Name, Perimeter, sb, ViewName);
        }
    }

其中 Coordinate 、PropertyGroup 类请参考《C#开发BIMFACE系列17 服务端API之获取模型数据2：获取构件材质列表》。

C#实现方法：

 /// <summary>
 ///  获取单个模型中单个楼层对应面积分区列表
 /// </summary>
 /// <param name="accessToken">【必填】令牌</param>
 /// <param name="fileId">【必填】代表该单模型的文件ID</param>
 /// <param name="floorId">【必填】代表该单模型的楼层ID</param>
 /// <returns></returns>
 public virtual SingleModelSingleFloorAreas GetSingleModelSingleFloorAreas(string accessToken, long fileId, string floorId)
 {
     // GET https://api.bimface.com/data/v2/files/{fileId}/areas
     string url = string.Format(BimfaceConstants.API_HOST + "/data/v2/files/{0}/areas?floorId={1}", fileId, floorId);

     BimFaceHttpHeaders headers = new BimFaceHttpHeaders();
     headers.AddOAuth2Header(accessToken);

     try
     {
         SingleModelSingleFloorAreas response;

         HttpManager httpManager = new HttpManager(headers);
         HttpResult httpResult = httpManager.Get(url);
         if (httpResult.Status == HttpResult.STATUS_SUCCESS)
         {
             response = httpResult.Text.DeserializeJsonToObject<SingleModelSingleFloorAreas>();
         }
         else
         {
             response = new SingleModelSingleFloorAreas
             {
                 Message = httpResult.RefText
             };
         }

         return response;
     }
     catch (Exception ex)
     {
         throw new Exception("[获取楼层对应面积分区列表]发生异常！", ex);
     }
 }

其中调用到的 httpManager.Get() 方法，请参考《C# HTTP系列》

测试

在BIMFACE的控制台中可以看到我们上传的文件列表，模型状态均为转换成功。

使用“bimface_2018_mdv_room.rvt”为例测试上述方法。

在《C#开发BIMFACE系列22 服务端API之获取模型数据7：获取多个模型的楼层信息》中可以查询到该文件的楼层信息

下面查询 FloorID 等于 245423 的面积分区列表

查询到的完整的面积分区列表为

success

[area=4480840.0410909,
 boundary={"version":"2.0",
           "loops":[[[{"z":2999.9998798520546,"y":650.40599536995444,"x":6616.83125243813},
                      {"z":2999.9998798520546,"y":650.40599536996251,"x":4121.9313523570981}
                     ],
                     [{"z":2999.9998798520546,"y":650.40599536996251,"x":4121.9313523570981},
                      {"z":2999.9998798520546,"y":-1145.5939327014466,"x":4121.9313523570954}
                     ],
                     [{"z":2999.9998798520546,"y":-1145.5939327014466,"x":4121.9313523570945},
                      {"z":2999.9998798520546,"y":-1145.5939327014546,"x":6616.8312524381263}
                     ],
                     [{"z":2999.9998798520546,"y":-1145.5939327014546,"x":6616.8312524381263},
                      {"z":2999.9998798520546,"y":650.40599536995444,"x":6616.83125243813}
                     ]
                    ]
                  ]
           },
 id=,
 levelId=,
 maxPt=[x=6616.83125243813, y=650.405995369963, z=2999.99987985205],
 minPt=[x=4121.93135235709, y=-1145.59393270145, z=2999.99987985205],
 name=面积 , perimeter=8101.79967552855, properties=, viewName=
]
[area=4333552.00744229,
 boundary={"version":"2.0",
           "loops":[[[{"z":2999.9998798520546,"y":-3201.5938503598827,"x":4505.6454184675295},
                      {"z":2999.9998798520546,"y":-3201.5938503598904,"x":7001.9312370150637}
                     ],
                     [{"z":2999.9998798520546,"y":-3302.5938463149096,"x":7001.9312370150637},
                      {"z":2999.9998798520546,"y":-1465.5939198856749,"x":7001.9312370150674}
                     ],
                     [{"z":2999.9998798520546,"y":-1465.5939198856749,"x":7001.9312370150665},
                      {"z":2999.9998798520546,"y":-1465.5939198856668,"x":4505.6454184675331}
                     ],
                     [{"z":2999.9998798520546,"y":-1465.5939198856677,"x":4505.6454184675331},
                      {"z":2999.9998798520546,"y":-3302.5938463149018,"x":4505.64541846753}
                     ]
                    ]
                   ]
          },
 id=,
 levelId=,
 maxPt=[x=7001.93123701507, y=-1465.59391988567, z=2999.99987985205],
 minPt=[x=4505.64541846753, y=-3302.59384631491, z=2999.99987985205],
 name=面积 ,
 perimeter=8104.57151246125,
 properties=,
 viewName=
]

测试代码如下：

// 获取楼层对应面积分区列表
protected void btnGetSingleModelSingleFloorAreas_Click(object sender, EventArgs e)
{
    long fileId = txtFileID.Text.Trim().ToLong();
    string floorId = txtFloorId.Text.Trim();
    FileConvertApi api = new FileConvertApi();
    SingleModelSingleFloorAreas response = api.GetSingleModelSingleFloorAreas(txtAccessToken.Text, fileId, floorId);

    txtResult.Text = response.Code.ToString2()
                   + Environment.NewLine
                   + response.Message.ToString2()
                   + Environment.NewLine
                   + response.Data.ToStringLine();
}

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