C#開發BIMFACE系列25 服務端API之獲取模型數據10：獲取樓層對應面積分區列表

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在《C#開發BIMFACE系列22 服務端API之獲取模型數據7：獲取多個模型的樓層信息》中，返回的樓層信息結果中包含了樓層的具體信息，其中包含樓層ID。

一個樓層中可能包含多個面積分區，本文介紹如何獲取樓層對應面積分區列表。

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

說明：獲取單個模型中單個樓層對應的分區列表。

參數：

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

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

HTTP響應示例(200)：

{ "code" : "success", "data" : [ { "area" : 5.168684733047761E7, "boundary" : "", "id" : "313137", "levelId" : "11", "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" : 0, "unit" : "mm", "value" : 17200, "valueType" : 2 } ] } ], "viewName" : "1 1" } ], "message" : "" }

封裝成對應的C#類：

/// <summary>
/// 獲取單個模型種單個樓層對應面積分區列表的返回結果類 /// </summary>
public class SingleModelSingleFloorAreas : GeneralResponse<List<Area>> { }

其中 Area 類定義爲

/// <summary>
    /// 樓層區域信息 /// </summary>
 [Serializable] public class Area { /// <summary>
        /// 樣例 : 7.256476003661832E7 /// </summary>
        [JsonProperty("area")] public double? AreaValue { get; set; } /// <summary>
        /// 邊界 /// </summary>
        [JsonProperty("boundary")] public string Boundary { get; set; } /// <summary>
        /// 編號 /// </summary>
        [JsonProperty("id")] public string Id { get; set; } /// <summary>
        /// 水平線編號 /// </summary>
        [JsonProperty("levelId")] public string LevelId { get; set; } [JsonProperty("maxPt")] public Coordinate MaxPt { get; set; } [JsonProperty("minPt")] public Coordinate MinPt { get; set; } /// <summary>
        /// 對象名稱。例如："dining room 4" /// </summary>
        [JsonProperty("name")] public string Name { get; set; } /// <summary>
        /// 樣例 : 40087.80000000279 /// </summary>
        [JsonProperty("perimeter")] public double? Perimeter { get; set; } [JsonProperty("properties")] public PropertyGroup[] Properties { get; set; } /// <summary>
        /// 樣例 : "1 1" /// </summary>
        [JsonProperty("viewName")] public string ViewName { get; set; } /// <summary>返回表示當前對象的字符串。</summary>
        /// <returns>表示當前對象的字符串。</returns>
        public override string ToString() { StringBuilder sb = new StringBuilder(); if (Properties != null && Properties.Length > 0) { 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 類請參考《C#開發BIMFACE系列17 服務端API之獲取模型數據2：獲取構件材質列表》。

C#實現方法：

 1 /// <summary>
 2 /// 獲取單個模型中單個樓層對應面積分區列表  3 /// </summary>
 4 /// <param name="accessToken">【必填】令牌</param>
 5 /// <param name="fileId">【必填】表明該單模型的文件ID</param>
 6 /// <param name="floorId">【必填】表明該單模型的樓層ID</param>
 7 /// <returns></returns>
 8 public virtual SingleModelSingleFloorAreas GetSingleModelSingleFloorAreas(string accessToken, long fileId, string floorId)  9 { 10     // GET https://api.bimface.com/data/v2/files/{fileId}/areas
11     string url = string.Format(BimfaceConstants.API_HOST + "/data/v2/files/{0}/areas?floorId={1}", fileId, floorId); 12 
13     BimFaceHttpHeaders headers = new BimFaceHttpHeaders(); 14  headers.AddOAuth2Header(accessToken); 15 
16     try
17  { 18  SingleModelSingleFloorAreas response; 19 
20         HttpManager httpManager = new HttpManager(headers); 21         HttpResult httpResult = httpManager.Get(url); 22         if (httpResult.Status == HttpResult.STATUS_SUCCESS) 23  { 24             response = httpResult.Text.DeserializeJsonToObject<SingleModelSingleFloorAreas>(); 25  } 26         else
27  { 28             response = new SingleModelSingleFloorAreas 29  { 30                 Message = httpResult.RefText 31  }; 32  } 33 
34         return response; 35  } 36     catch (Exception ex) 37  { 38         throw new Exception("[獲取樓層對應面積分區列表]發生異常！", ex); 39  } 40 }

其中調用到的 httpManager.Get() 方法，請參考《C# HTTP系列》

測試

在BIMFACE的控制檯中能夠看到咱們上傳的文件列表，模型狀態均爲轉換成功。

使用「bimface_2018_mdv_room.rvt」爲例測試上述方法。

在《C#開發BIMFACE系列22 服務端API之獲取模型數據7：獲取多個模型的樓層信息》中能夠查詢到該文件的樓層信息

 

下面查詢 FloorID 等於 245423 的面積分區列表

查詢到的完整的面積分區列表爲

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=1092832, levelId=, maxPt=[x=6616.83125243813, y=650.405995369963, z=2999.99987985205], minPt=[x=4121.93135235709, y=-1145.59393270145, z=2999.99987985205], name=面積 2, 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=1092841, levelId=, maxPt=[x=7001.93123701507, y=-1465.59391988567, z=2999.99987985205], minPt=[x=4505.64541846753, y=-3302.59384631491, z=2999.99987985205], name=面積 3, perimeter=8104.57151246125, properties=, viewName= ]

測試代碼以下：

// 獲取樓層對應面積分區列表
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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