Revit Family API 创建参考平面

最新推荐文章于 2024-09-18 20:15:00 发布

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最新推荐文章于 2024-09-18 20:15:00 发布

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本文介绍如何使用 Revit Family API 创建垂直与水平参考平面。通过定义平面上的两个点和一个向量，或者三个点来确定参考平面的位置。文中提供了具体的 C# 代码示例。

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使用API来编辑族时，使用doc.FamilyCreate.NewReferencePlane();创建参考平面。

// Revit Family API 创建参考平面
[TransactionAttribute(Autodesk.Revit.Attributes.TransactionMode.Manual)]
public class cmdCreateReferencePlane : IExternalCommand
{
     // 添加垂直参考平面(Family API)，通过平面上两点与向量。
     void AddReferencePlane_VerticalOffset(Document doc, View view)
    {
        XYZ pt1 = new XYZ(- 0.5, - 2.0, 0.0);
        XYZ pt2 = new XYZ(- 0.5, 2.0, 0.0);
        XYZ vec = XYZ.BasisZ;
        ReferencePlane refPlane = doc.FamilyCreate.NewReferencePlane(pt1, pt2, vec, view);
        refPlane.Name = " OffsetV ";
    }
     // 添加水平参考平面(Family API)，通过平面上两点与向量。
     void AddReferencePlane_HorizontalOffset(Document doc, View view)
    {
        XYZ pt1 = new XYZ( 2.0, - 0.5, 0.0);
        XYZ pt2 = new XYZ(- 2.0, - 0.5, 0.0);
        XYZ vec = XYZ.BasisZ;
        ReferencePlane refPlane = doc.FamilyCreate.NewReferencePlane(pt1, pt2, vec, view);
        refPlane.Name = " OffsetH ";
    }
     // 使用三个点来确定参考平面
     void AddReferencePlane_VerticalOffset2(Document doc)
    {
        XYZ pt1 = new XYZ(- 0.5, - 2.0, 0.0);
        XYZ pt2 = new XYZ(- 0.5, 2.0, 0.0);
        XYZ pt3 = new XYZ(- 0.5, - 1.0, 1.0);
        View view = findElement(doc, typeof(ViewPlan), " Lower Ref. Level ") as View;
         if (view != null)
        {
            ReferencePlane refPlane = doc.FamilyCreate.NewReferencePlane2(pt1, pt2, pt3, view);
            refPlane.Name = " OffsetV ";
        }
    }
     public Result Execute(ExternalCommandData commandData, ref string messages, ElementSet elements)
    {
        UIApplication app = commandData.Application;
        Document doc = app.ActiveUIDocument.Document;
        Selection sel = app.ActiveUIDocument.Selection;

        Transaction ts = new Transaction(doc, " CreateReferencePlane ");
        ts.Start();
         // 垂直参考平面
        AddReferencePlane_VerticalOffset(doc, doc.ActiveView);
         // AddReferencePlane_VerticalOffset2(doc);
         // 水平参考平面
        AddReferencePlane_HorizontalOffset(doc, doc.ActiveView);

        ts.Commit();

         return Result.Succeeded;
    }
     // 通过类型与名称找Element
    Element findElement(Document _rvtDoc, Type targetType, string targetName)
    {
         // get the elements of the given type
         //
        FilteredElementCollector collector = new FilteredElementCollector(_rvtDoc);
        collector.WherePasses( new ElementClassFilter(targetType));

         // parse the collection for the given name
         // using LINQ query here.
         //
         var targetElems = from element in collector where element.Name.Equals(targetName) select element;
        List<Element> elems = targetElems.ToList<Element>();

         if (elems.Count > 0)
        {   // we should have only one with the given name.
             return elems[ 0];
        }

         // cannot find it.
         return null;
    }
}

from: http://greatverve.cnblogs.com/p/NewReferencePlane.html