Revit.Plugln/FWindSoft/FWindSoft.Revit/FamilyManager/FamilyExtension.cs

using Autodesk.Revit.DB;
using FWindSoft.Revit.FamilyManager;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FWindSoft.Revit
{
    public static class FamilyExtension
    {
        #region 查找族相关信息
        /// <summary>
        /// 查找family的所有族类型
        /// </summary>
        /// <param name="family"></param>
        /// <returns></returns>
        public static List<FamilySymbol> GetFamilySymbols(this Family family)
        {
            var fsIds = family.GetFamilySymbolIds();
            var refDoc = family.Document;
            return fsIds.Select(id => refDoc.GetElement(id)).OfType<FamilySymbol>().ToList();
        }
        /// <summary>
        /// 查找family的第一个可用Symbol
        /// </summary>
        /// <param name="family"></param>
        /// <returns></returns>
        public static FamilySymbol GetFamilySymbol(this Family family)
        {
            return family.GetFamilySymbol(strTypeName: null);
        }
        /// <summary>
        /// 查找指定名称familySymbol,没有找到则返回null
        /// </summary>
        /// <param name="family"></param>
        /// <param name="strTypeName"></param>
        /// <returns></returns>
        public static FamilySymbol GetFamilySymbol(this Family family, string strTypeName)
        {
            FamilySymbol familySymbol = null;
            var symbolList = family.GetFamilySymbols();
            if (string.IsNullOrWhiteSpace(strTypeName))
            {
                familySymbol = symbolList.FirstOrDefault();
            }
            else
            {
                familySymbol = symbolList.FirstOrDefault(fs => fs.Name == strTypeName);
            }

            familySymbol.ActivateT();
            return familySymbol;
        }


        /// <summary>
        /// 查找指定条件的FamilySymbol,没有找到则返回Null
        /// </summary>
        /// <param name="family"></param>
        /// <param name="parameterValues"></param>
        /// <returns></returns>
        public static FamilySymbol GetFamilySymbol(this Family family, Dictionary<string, string> parameterValues)
        {
            var symbols = family.GetFamilySymbols();
            FamilySymbol fsResult = null;
            foreach (var fs in symbols)
            {
                bool valueEqual = true;
                foreach (var parameterValue in parameterValues)
                {
                    var parameter = fs.GetParameter(parameterValue.Key);
                    if (parameter == null)
                        continue;
                    valueEqual = ParameterUtil.EqualValue(parameter, parameterValue.Value);
                    if (!valueEqual)
                    {
                        break;
                    }
                }
                if (valueEqual)
                {
                    fsResult = fs;
                    break;
                }
            }
            fsResult.ActivateT();
            return fsResult;
        } 
        #endregion


        /// <summary>
        /// 获取指定类型参数的Symbol,如条件果没有条件指定的类型，则创建满足条件的类型
        /// </summary>
        /// <param name="family"></param>
        /// <param name="parameterValues"></param>
        /// <param name="symbolName"></param>
        /// <returns></returns>
        public static FamilySymbol GetAndCopySymbol(this Family family,
            Dictionary<string, string> parameterValues, ref string symbolName)
        {
            var familySymbol = family.GetFamilySymbol(symbolName);
            if (familySymbol == null)
            {
                familySymbol = family.GetFamilySymbol(parameterValues);
                if (familySymbol == null)
                {
                    familySymbol = family.GetFamilySymbol()?.CopyFamilySymbol(symbolName, parameterValues);
                }
            }
            if(familySymbol!=null)
            {
                symbolName = familySymbol.Name;
            }
            familySymbol.ActivateT();
            return familySymbol;
        }


        
    }
}