C#开发BIMFACE系列29 服务端API之获取模型数据14：获取图纸列表

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　　一个三维模型中可能包含对应多张二维图纸列表，如果在在上传转换时设置导出二维图纸，则转换完成后三维模型自动关联所有的二维图纸。

　　在BIM查看器的左上角【视图】->【目录树】下拉选项中选择“图纸”选项，如果三维模型包含二维图纸，则在上传转换时设置导出二维图纸，则此处就会列出所有的图纸。双击一个图纸，右上侧显示该图纸。当双击三维模型的构件时，如果包含对应的二维图纸，则自动定位到二维图纸上；双击二维图纸上的图元时，自动定位到三维模型的构件。

本篇主要介绍如何获取模型文件对应的图纸列表。

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

说明：获取单个模型文件对应的图纸列表。如果请求参数elementId为null，返回所有图纸，否则返回包含该构件的所有图纸。

参数：

请求 path(示例)：https://api.bimface.com/data/v2/files/1211223382064960/drawingsheets

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

HTTP响应示例(200)：

{
  "code" : "success",
  "data" : [ {
    "fileId" : 0,
    "portsAndViews" : [ {
      "elevation" : 0.0,
      "outline" : [ 0.0 ],
      "viewId" : "6278f2c7786043d4a35ae4115571b7c8",
      "viewPoint" : {
        "origin" : [ 0.0 ],
        "rightDirection" : [ 0.0 ],
        "scale" : 0,
        "upDirection" : [ 0.0 ],
        "viewDirection" : [ 0.0 ]
      },
      "viewType" : "viewType",
      "viewport" : [ 0.0 ]
    } ],
    "viewInfo" : {
      "cropBox" : [ -12147.804809235151, -19279.554054815613, -30480.0, 22637.545576143948, 6805.089759789783, 30480.0 ],
      "elevation" : 0.0,
      "id" : "312",
      "levelId" : "312",
      "name" : "Level 1",
      "outline" : [ -146.52900292249365, -215.01048476685295, 240.3331231070219, 110.78415780710446 ],
      "preview" : {
        "height" : 0,
        "path" : "path",
        "width" : 0
      },
      "thumbnails" : [ "m.bimface.com/9b711803a43b92d871cde346b63e5019/resource/thumbnails/312/312.96x96.png" ],
      "viewPoint" : {
        "origin" : [ 0.0 ],
        "rightDirection" : [ 0.0 ],
        "scale" : 0,
        "upDirection" : [ 0.0 ],
        "viewDirection" : [ 0.0 ]
      },
      "viewType" : "FloorPlain"
    }
  } ],
  "message" : ""
}

返回结果的结构比较复杂。封装成对应的 C# 类，SingleModelDrawingSheets

/// <summary>
///  获取单个模型的图纸列表返回的结果类
/// </summary>
[Serializable]
public class SingleModelDrawingSheets : GeneralResponse<List<DrawingSheet>>
{

}

引用的 DrawingSheet 类

/// <summary>
///  图纸信息类
/// </summary>
[Serializable]
public class DrawingSheet
{
    /// <summary>
    ///  文件ID 
    /// </summary>
    [JsonProperty("fileId")]
    public long? FileId { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("portsAndViews")]
    public PortAndView[] PortAndViews { get; set; }

    [JsonProperty("viewInfo")]
    public ViewInfo ViewInfo { 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()
    {
        return String.Format("[fileId={0}, portAndViews={1}, viewInfo={2}]",
                             FileId, PortAndViews.ToStringLine(), ViewInfo);
    }
}

引用的 PortAndView 类 

[Serializable]
public class PortAndView
{
    /// <summary>
    ///  样例 :  0.0 
    /// </summary>
    [JsonProperty("elevation")]
    public double? Elevation { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("outline")]
    public double?[] Outline { get; set; }

    /// <summary>
    ///  样例 :  "6278f2c7786043d4a35ae4115571b7c8"
    /// </summary>
    [JsonProperty("viewId")]
    public string ViewId { get; set; }

    [JsonProperty("viewPoint")]
    public ViewPoint ViewPoint { get; set; }

    /// <summary>
    ///  样例 : "viewType"
    /// </summary>
    [JsonProperty("viewType")]
    public string ViewType { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("viewport")]
    public double?[] Viewport { 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()
    {
        return String.Format("[elevation={0}, outline={1}, viewId={2}, viewPoint={3}, viewType={4}, viewport={5}]",
                             Elevation, Outline.ToStringWith(","), ViewId, ViewPoint, ViewType, Viewport.ToStringWith(","));
    }
}

引用的 ViewPoint 类

[Serializable]
public class ViewPoint
{
    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("origin")]
    public double?[] Origin { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("rightDirection")]
    public double?[] RightDirection { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("scale")]
    public int? Scale { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("upDirection")]
    public double?[] UpDirection { get; set; }

    /// <summary>
    ///  样例 : [ 0.0 ]
    /// </summary>
    [JsonProperty("viewDirection")]
    public double?[] ViewDirection { 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()
    {
        return String.Format("[origin={0}, rightDirection={1}, scale={2}， upDirection={3}, ViewDirection={4}]",
                             Origin.ToStringWith(","), RightDirection.ToStringWith(","), Scale, UpDirection.ToStringWith(","),
                             ViewDirection.ToStringWith(","));
    }
}

C#实现方法：

/// <summary>
///  获取单个模型的图纸列表。
///  如果请求参数elementId为null，返回所有图纸，否则返回包含该构件的所有图纸
/// </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="elementId">【非必填】构件ID</param>
/// <returns></returns>
public virtual SingleModelDrawingSheets GetSingleModelDrawingSheets(string accessToken, long fileId, string elementId = null)
{
    // GET https://api.bimface.com/data/v2/files/{fileId}/drawingsheets
    string url = string.Format(BimfaceConstants.API_HOST + "/data/v2/files/{0}/drawingsheets", fileId);
    if (!string.IsNullOrWhiteSpace(elementId))
    {
        url = url + "?elementId=" + elementId;
    }

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

    try
    {
        SingleModelDrawingSheets response;

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

        return response;
    }
    catch (Exception ex)
    {
        throw new Exception("[获取图纸列表]发生异常！", ex);
    }
}

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。

 完整的图纸列表信息为：

success

[fileId=, 
 portAndViews=, 
 viewInfo=[cropBox=-30479.998046875,-30479.998046875,-304800,30479.998046875,30479.998046875,-30.4799995422363, 
           elevation=0, 
           width=382617, 
           Id=382617, 
           levelId=, 
           Outline=2.49999989974552,-0.999999959964061,842.499966258321,592.999976250742, 
           preview=[height=724, 
                    path=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/382617/382617.png, 
                    width=1024
                   ], 
           thumbnails=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/382617/382617.96x96.png, 
           viewPoint=[height=, path=, width=], 
           viewType=DrawingSheet]
]

[fileId=, 
 portAndViews=, 
 viewInfo=[cropBox=-30479.998046875,-30479.998046875,-304800,30479.998046875,30479.998046875,-30.4799995422363, 
           elevation=0, 
           width=503701, 
           Id=503701, 
           levelId=, 
           Outline=2.49999989974552,-0.999999959964061,842.499966258321,592.999976250742, 
           preview=[height=724, 
                    path=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/503701/503701.png, 
                    width=1024
                   ], 
           thumbnails=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/503701/503701.96x96.png, 
           viewPoint=[height=, path=, width=], 
           viewType=DrawingSheet
          ]
]

[fileId=, 
 portAndViews=, 
 viewInfo=[cropBox=-30479.998046875,-30479.998046875,-304800,30479.998046875,30479.998046875,-30.4799995422363, 
           elevation=0, 
           width=958184, 
           Id=958184, 
           levelId=, 
           Outline=2.49999989974552,-0.999999959964061,842.499966258321,592.999976250742, 
           preview=[height=724, 
                    path=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/958184/958184.png, 
                    width=1024
                   ], 
           thumbnails=m.bimface.com/6bd2057ac6d8072ad03758b0b34e205d/resource/thumbnails/958184/958184.96x96.png, 
           viewPoint=[height=, path=, width=], 
           viewType=DrawingSheet
          ]
]

测试代码如下：

// 获取图纸列表
protected void btnGetSingleModelDrawingSheets_Click(object sender, EventArgs e)
{
    long fileId = txtFileID.Text.Trim().ToLong();
    string elementId = txtElementId.Text.Trim();
    FileConvertApi api = new FileConvertApi();
    SingleModelDrawingSheets response = api.GetSingleModelDrawingSheets(txtAccessToken.Text, fileId, elementId);

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

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BIMFACE二次开发系列目录     【已更新最新开发文章，点击查看详细】