Revit开发 - 几何信息（GeometryElement）的获取

r囧r小猫 2022-03-01 10:12 494阅读 0赞

本文演示如何获取Revit文件中墙和柱各个面的面积。

### 1.用Revit绘制模型 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70][]

### 2.获取墙各个面的面积 ###

using Autodesk.Revit.Attributes;
    using Autodesk.Revit.DB;
    using Autodesk.Revit.UI;
    using System.Windows.Forms;
    
    namespace RevitAddin4
    {
        [TransactionAttribute(TransactionMode.Manual)]
        public class RevitAddin : IExternalCommand
        {
            public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                Document doc = uiDoc.Document;
                FilteredElementCollector collector = new FilteredElementCollector(doc);
                var walls = collector.OfClass(typeof(Wall));
    
                string info = "";
                foreach (var item in walls)
                {
                    Options options = new Options();
                    GeometryElement geometry = item.get_Geometry(options);
                    int i = 0;
                    foreach (GeometryObject obj in geometry)
                    {
                        Solid solid = obj as Solid;
                        if (solid != null)
                        {
                            FaceArray faceArray = solid.Faces;
                            foreach (Face face in faceArray)
                            {
                                info += "Face"+ i +" 的面积: " + face.Area.ToString() + "\n";
                                i++;
                            }
                        }
                    }
                }
    
                MessageBox.Show(info, "信息");
                return Result.Succeeded;
            }
        }
    }

执行结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 1][]

### 3.获取柱各个面的面积 ###

using Autodesk.Revit.Attributes;
    using Autodesk.Revit.DB;
    using Autodesk.Revit.UI;
    using System.Windows.Forms;
    
    namespace RevitAddin4
    {
        [TransactionAttribute(TransactionMode.Manual)]
        public class RevitAddin : IExternalCommand
        {
            public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                Document doc = uiDoc.Document;
                FilteredElementCollector collector = new FilteredElementCollector(doc);
                var columns = collector.OfClass(typeof(FamilyInstance));
    
                string info = "";
                foreach (var item in columns)
                {
                    info += "名称: " + item.ToString() + "\n";
                    Options options = new Options();
                    GeometryElement geometry = item.get_Geometry(options);
                    int i = 0;
                    foreach (GeometryObject obj in geometry)
                    {
                        GeometryInstance instance = obj as GeometryInstance;
                        if (instance == null)
                            continue;
                        GeometryElement geometryElement = instance.GetInstanceGeometry();
                        if (geometryElement == null)
                            continue;
                        foreach (GeometryObject elem in geometryElement)
                        {
                            Solid solid = elem as Solid;
                            if (solid == null || solid.Volume.ToString() == "0")
                                continue;
                            FaceArray faceArray = solid.Faces;
                            foreach (Face face in faceArray)
                            {
                                info += "Face" + i + " 的面积: " + face.Area.ToString() + "\n";
                                i++;
                            }
                        }
                    }
                }
                MessageBox.Show(info, "信息");
                return Result.Succeeded;
            }
        }
    }

执行结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 2][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70]: /images/20220301/107f7de9a6b444ff87de9cf2e83eb281.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 1]: /images/20220301/89269dede8614bbbb956cdcd6fe640ee.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 2]: /images/20220301/557c1b17a9e64610ae8a3d554d7eca5a.png