Revit开发 - 属性（Parameter）的获取和设置

野性酷女 2022-03-01 09:08 294阅读 0赞

本文演示如何获取和设置Revit文件中墙的属性值。

### 1.用Revit绘制模型 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70][]

### 2.内部属性的枚举 ###

本文涉及到的枚举类型如下：

public enum BuiltInParameter
    {
        WALL_TOP_OFFSET,       //顶部偏移
        WALL_BASE_OFFSET,      //底部偏移
        WALL_BASE_CONSTRAINT,  //底部约束
        WALL_HEIGHT_TYPE,      //顶部约束
        HOST_VOLUME_COMPUTED,   //体积
        HOST_AREA_COMPUTED      //面积
        ......
    }

代码实例

using Autodesk.Revit.Attributes;
    using Autodesk.Revit.DB;
    using Autodesk.Revit.UI;
    using System.Windows.Forms;
    
    namespace RevitAddin3
    {
        [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 = "";
                Transaction trans = new Transaction(doc);
                trans.Start("Move");
                foreach (var item in walls)
                {                  
                    //设置顶部偏移
                    item.get_Parameter(BuiltInParameter.WALL_TOP_OFFSET).SetValueString("4000");
                    //设置底部偏移
                    item.get_Parameter(BuiltInParameter.WALL_BASE_OFFSET).SetValueString("2000");
                    //获取底部约束
                    var baseConstraint = item.get_Parameter(BuiltInParameter.WALL_BASE_CONSTRAINT).AsValueString();
                    info += "底部约束: " + baseConstraint + "\n";
                    //获取顶部约束
                    var heightType = item.get_Parameter(BuiltInParameter.WALL_HEIGHT_TYPE).AsValueString();
                    info += "顶部约束: " + heightType + "\n";                
                    //获取体积
                    var volume = item.get_Parameter(BuiltInParameter.HOST_VOLUME_COMPUTED).AsValueString();
                    info += "体积: " + volume + "\n";
                    //获取面积
                    var area = item.get_Parameter(BuiltInParameter.HOST_AREA_COMPUTED).AsValueString();
                    info += "面积: " + area + "\n";
                }
                trans.Commit();
    
                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][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70]: /images/20220301/280c8a6cbfc5435aacf5d119c6841e79.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 1]: /images/20220301/5f3510334ff148d196c4f78c716afb26.png