ShrlAlgoToolkit/ShrlAlgoToolkit.RevitAddins/RvFamily/ReplaceInstanceCmd.cs

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Structure;
using Autodesk.Revit.UI;
using Nice3point.Revit.Toolkit.External;



namespace ShrlAlgoToolkit.RevitAddins.RvFamily;

/// <summary>
///     替换族实例
/// </summary>
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
public class ReplaceInstanceCmd : ExternalCommand
{
    public override void Execute()
    {
        var elementIds = new List<ElementId>();
        if (
            UiDocument.SelectObject(
                new FuncFilter(
                    e =>
                        e is FamilyInstance instance
                        && instance.Symbol.Family.FamilyPlacementType is FamilyPlacementType.OneLevelBased or FamilyPlacementType.WorkPlaneBased or FamilyPlacementType.TwoLevelsBased
                ),
                "请选择目标族实例"
            )
            is not FamilyInstance instanceToMatch
        )
        {
            Result = Result.Cancelled;
            return;
        }

        var instancesReplace = UiDocument.SelectObjects(
            new FuncFilter(e => e is FamilyInstance instance && instance.Id != instanceToMatch.Id),
            "请选择被替换(修改)的族实例"
        ).Cast<FamilyInstance>();
        if (!instancesReplace.Any())
        {
            Result = Result.Cancelled;
            return;
        }
        Document.Invoke(
            _ =>
            {
                instanceToMatch.Symbol.Activate();
                foreach (var instanceReplace in instancesReplace)
                {
                    //跳过相同的实例
                    if (instanceReplace.Id == instanceToMatch.Id)
                    {
                        continue;
                    }
                    var p1 = instanceReplace.GetLocXYZ();
                    var p2 = instanceReplace.HandOrientation;
                    //默认当前平面视图标高
                    var level = Document.ActiveView.GenLevel;
                    var placementType = instanceToMatch.Symbol.Family.FamilyPlacementType;
                    FamilyInstance newInstance = null;
                    switch (placementType)
                    {
                        case FamilyPlacementType.OneLevelBased:

                            {
                                newInstance = Document.Create.NewFamilyInstance(
                                    p1,
                                    instanceToMatch.Symbol,
                                    level,
                                    StructuralType.NonStructural
                                );
                            }
                            break;
                        case FamilyPlacementType.TwoLevelsBased:

                            {
                                level = Document.GetElement(instanceToMatch.LevelId) as Level;
                                newInstance = Document.Create.NewFamilyInstance(
                                    p1,
                                    instanceToMatch.Symbol,
                                    level,
                                    StructuralType.NonStructural
                                );
                            }
                            break;
                        case FamilyPlacementType.WorkPlaneBased:

                            {
                                newInstance = Document.Create.NewFamilyInstance(
                                    level.GetPlaneReference(),
                                    p1,
                                    p2,
                                    instanceToMatch.Symbol
                                );
                            }
                            break;
                        default:
                            break;
                    }
                    foreach (Parameter paramSource in instanceReplace.Parameters)
                    {
                        //var defini = paramSource.Definition as InternalDefinition;
                        var b =
                            paramSource.Definition is InternalDefinition definition
                            && (
                                definition.BuiltInParameter != BuiltInParameter.INVALID
                                && definition.BuiltInParameter != BuiltInParameter.DOOR_NUMBER
                                && definition.BuiltInParameter != BuiltInParameter.ALL_MODEL_INSTANCE_COMMENTS
                            );
                        if (b || paramSource.IsReadOnly || !paramSource.HasValue)
                        {
                            continue;
                        }

                        foreach (Parameter paramToWrite in newInstance.Parameters)
                        {
                            if (paramSource.Definition.Name == paramToWrite.Definition.Name)
                            {
                                paramToWrite.SetValue(paramSource.GetValue());
                            }
                        }
                        Document.Regenerate();
                    }

                    elementIds.Add(instanceReplace.Id);
                }

                Document.Delete(elementIds);
            },
            "替换族实例"
        );
    }
}