[每日一码] ARX图层合并

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图层合并
将一个图层的所有对象转移到另一个图层，并删除原图层。

1. AcDbObjectId eId;
2. AcDbObject *pObj;
3. AcDbEntity *pE;
5. ads采用name ss;
6. ads采用name ent;
7. ads采用point pt;
8. long len;
9. char * layer采用tc1;
10. char * layer采用tc2;
11. struct resbuf eb;
12. struct resbuf blc;
15. int rc = acedEntSel("\n选择被合并图层实体:",ent,pt);
16. switch(rc)
17. {
18. case RTERROR :
19.   acutPrintf("\n未选中实体! ");
20. break;
22. case RTCAN :
23.   acutPrintf("\n取消! ");
24. break;
26. case RTNORM :   
27.   acdbGetObjectId(eId,ent);
28.   acdbOpenObject(pE, eId, AcDb::kForRead, false);
29.   layer采用tc1 = pE->layer();//查询实体所在的图层  
30.   pE->close();
32.   int rcc = acedEntSel("\n选择合并图层实体:",ent,pt);
33.   switch(rcc)
34.   {
35.    case RTERROR :
36.     acutPrintf("\n未选中实体! ");
37.    break;
39.    case RTCAN :
40.     acutPrintf("\n取消! ");
41.    break;
43.    case RTNORM :      
44.     acdbGetObjectId(eId,ent);
45.     acdbOpenObject(pE, eId, AcDb::kForRead, false);
46.     layer采用tc2 = pE->layer();   
47.     pE->close();
49.     eb.restype = 8;//层名
50.     eb.resval.rstring = layer采用tc1;
51.     eb.rbnext = NULL;
52.     acedSSGet("X",NULL,NULL,&eb,ss);
53.     free(eb.resval.rstring);
55.     acedSSLength(ss,&len);
56.     for(int i=0; i<len; i++)
57.     {
58.      acedSSName(ss,i,ent);
59.      acdbGetObjectId(eId,ent);
60.      acdbOpenObject(pE, eId, AcDb::kForWrite, false);
61.      pE->setLayer(layer采用tc2);
62.      pE->close();  
63.     }
64.     acedSSFree(ss);
66.     blc.restype = RTSTR;
67.     blc.resval.rstring = "0";
68.     acedSetVar("CLAYER",&blc);//设置当前图层为0层  
71.     AcDbLayerTable * pLayerTbl;//定义层表指针
72.     acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pLayerTbl, AcDb::kForWrite);
73.      
74.     AcDbLayerTableRecord * pLayerTblRcd; //定义层表记录指针
75.     if ( Acad::eOk == pLayerTbl->getAt(layer采用tc1 , pLayerTblRcd , AcDb::kForWrite))
76.     {
77.      pLayerTblRcd->erase(true);//删除图层
78.     }   
79.     pLayerTblRcd->close();
80.     pLayerTbl->close();
81.     free(layer采用tc2);
82.    break;
83.   }
84.   free(layer采用tc);   
85. break;
86. }   

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