9.3 编辑对象

BIMBase SDK中对象的编辑主要包括属性、夹点、移动复制等通用编辑操作。本节中主要介绍洞口的属性编辑和立方体的移动操作。

9.3.1 洞口对象属性编辑

在3.2.6节中已详细介绍立方体的属性，洞口属性获取与立方体属性获取相似，但洞口属性修改后需要刷新关联立方体，实现重新开洞，详见示例代码9-4。

[BPExternalToolAttribute(className = "OpenningDemo")]
public class 0penningPropertyDemo : BPToolProperty
{
    enum enOpenningProperty
    {
        Length,
        Height,
        OpenningPropertyCunt
    }
    public override bool onPropertySet(List<BPObject> elementlist, int index, BPBimUIPropertyItem item)
    {
        BPDocument doc = BPApplication.singleton().activeDocument;
        BPModel model = doc.modelManager.activeModel;
        for (int i = 0; i < elementlist.Count(); i++)
        {
            OpenningDemo Openning = (OpenningDemo)elementlist.ElementAt(i);
            switch (index)
            {
                case (int)enOpenningProperty.Length:
                    {
                        int _value = 0;
                        if (!item.getValue(ref _value))
                            return false;
                        Openning.length = _value;
                        break;
                    }
                case (int)enOpenningProperty.Height:
                    {
                        int _value = 0;
                        if (!item.getValue(ref _value))
                            return false;
                        Openning.height = _value;
                        break;

                    }
                default:
                            break;
            }
                    Openning.replaceInDocument(doc);
                    List<BPDataKey> keyList = new List<BPDataKey>();
                    BPDataKey keyOpenning = Openning.dataKey;
                    BPRelatedDataUtil.getRelatedElements(keyList,doc,
                    keyOpenning);
                    if (keyList.Count == 0) return false;
                    BPGraphics graphicBoolResult = new BPGraphics();
                    foreach (BPDataKey key in keyList)
                    {
                        BPObject _object = BPObjectUtil.getObjFromData(doc,
                        key);
                        if (_object != null)
                        {
                            CubeDemo cube = _object as CubeDemo;
                            if (cube == null)
                                continue;
                            cube.replaceInDocument(doc);
                        }
                    }
            }
            return true;
        }
    }

示例代码9-4为洞口属性类中OnPropertySet接口的实现，可以看到在设置了洞口的长或高，并刷新洞口后，需要通过BPRelatedDataUtil.getRelatedElements获取洞口关联的立方体对象，并刷新立方体的图素修改开洞大小。洞口属性效果实现如图9-2所示。

图9-2 洞口属性实现效果

9.3.2 立方体对象编辑时联动洞口

示例代码9-5主要展示在立方体对象移动时相应的修改关联的洞口，读者需要关注对关联对象的操作，通过继承BPToolMove类重写move方法实现。在刷新立方体前，需要通过关联关系找到立方体关联的洞口，对洞口进行移动并刷新洞口。此时，移动立方体时，洞口会跟随移动。

[BPExternalToolAttribute(className = "CubeDemo")]
public class CubeMove : BPToolMove
{
    public override void move(List<BPObject> elementlist, GeTransform lst)
    {
        BPDocument doc = BPApplication.singleton().activeDocument;
        BPModel model = doc.modelManager.activeModel;
        foreach (var obj in elementlist)
        {
            CubeDemo cube = obj as CubeDemo;
            cube.replaceInDocument(doc);
            List<BPDataKey> keyList = new List<BPDataKey>();
            BPDataKey keyCube = cube.dataKey;
            BPRelatedDataUtil.getRelatedElements(keyList, doc, keyCube);
            foreach (BPDataKey key in keyList)
            {
                BPObject _object = BPObjectUtil.getObjFromData(doc, key);
                if (_object != null)
                {
                    OpenningDemo Openning = _object as OpenningDemo;
                    if (Openning == null) continue;
                    Openning.onTransform(lst);
                    Openning.replaceInDocument(doc);
                }
            }
        }
    }
}