Revit二次开发----分割族

**如有不明白，请qq254033230询问。**

其实在revit里是不存在分割族的概念。

对于基于线形的族，截面沿线都是一样，要想达到分割的状态，只需要把族基于线的那条线变短，然后再在分割点复制一个新的族即可。

过程是先获得线的均分点，然后把族的线缩短，接着再复制族，即可变成均分的效果。主要方法见代码:

private void DevideFamilyInstance(FamilyInstance famIns,int n, Document revitDoc)        {            LocationCurve locationCurve = famIns.Location as LocationCurve;            XYZ stratPoint = locationCurve.Curve.GetEndPoint(0);            XYZ endPoint = locationCurve.Curve.GetEndPoint(1);            IList<XYZ> devidePoint = InsertPoint(stratPoint, endPoint,n);            Transaction transaction = new Transaction(revitDoc);            transaction.Start("将族复制到相应位置");            locationCurve.Curve = Line.CreateBound(stratPoint, devidePoint[0]);            List<ElementId> list = new List<ElementId>();            list.Add(famIns.Id);            ICollection<ElementId> elementIds = list;            for (int j=1;j<n;j++)            {                XYZ tanslation = new XYZ(devidePoint[j - 1].X - stratPoint.X, devidePoint[j - 1].Y - stratPoint.Y, devidePoint[j - 1].Z - stratPoint.Z);                     ElementTransformUtils.CopyElements(revitDoc, elementIds, tanslation);                            }            transaction.Commit();        }        private List<XYZ> InsertPoint(XYZ stratPoint, XYZ endPoint,int n)        {            List<XYZ> listPoint = new List<XYZ>();            double x, y, z;            for(int i=1;i<n;i++)            {                x = stratPoint.X+(endPoint.X- stratPoint.X)*i/n;                y = stratPoint.Y + (endPoint.Y - stratPoint.Y) * i / n;                z= stratPoint.Z + (endPoint.Z - stratPoint.Z) * i / n;                XYZ point = new XYZ(x,y,z);                listPoint.Add(point);            }