Revit API之获取复合结构和材质

用户可以使用HostObjAttributes.GetCompoundStructure()这个方法来获取复合结构 CompoundStructure。

其中 HostObjAttributes 的子类包括有：WallType，FloorType 和RoofType。

而 CompoundStructure. GetLayers()方法可以用来获取 CompoundStructureLayer，也就是每一层的信息,从而进一步获取每层的材质、厚度、功能等信息。

void GetWallMaterial(Autodesk.Revit.DB.Document RevitDoc)
        {
            Wall wall = RevitDoc.GetElement(new ElementId(732980)) as Wall;
            CompoundStructure compoundStructure = wall.WallType.GetCompoundStructure();
            if (compoundStructure == null)
                return;
            if (compoundStructure.LayerCount > 0)
            {
                foreach (CompoundStructureLayer compoundStructureLayer in
             compoundStructure.GetLayers())
                {
                    //获取材质和厚度 
                    ElementId materialId = compoundStructureLayer.MaterialId;
                    double layerWidth = compoundStructureLayer.Width;
                }
            }
        }

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