[求助]：关于创建块引用实体的，高手帮忙看一下为什么显示不出来

Bazhaoyu

请高手帮忙分析一下，为什么运行后图块显示不出来，谢谢了！

        AcDbBlockTableRecord *pLtBlockTableRec
                =new AcDbBlockTableRecord();
        pLtBlockTableRec->setName("ASDK_BLOCK_LT2");
        //获取块表
        //
        AcDbBlockTable *pBlockTable=NULL;
        acdbCurDwg()->getSymbolTable(pBlockTable,AcDb::kForWrite);
        //将新建的块表记录加入到块表中
        //
        AcDbObjectId blockId;
        pBlockTable->add(blockId,pLtBlockTableRec);
        pBlockTable->close();

acedGetPoint(NULL,"请选择圆形冷铁的圆心",center);

  AcDbCircle *pCircle=new AcDbCircle;
        CopyPoint(basePoint,center);
        pCircle->setCenter(basePoint);
        pCircle->setRadius(lt2_radius);
        //AcDbCircle *pCir;
        //pCir=new AcDbCircle(center,(0,0,1),lt2_radius);

        if (acdbEntLast(ent_lt2[0])!=RTNORM) {
                acdbFail("\nFail create last entity.");
                return;
        }
        //
        AcDbObjectId circleId;
        pLtBlockTableRec->appendAcDbEntity(circleId,pCircle);



    //画两条交叉线并将它们作为部件加入块表中
        AcGePoint3d pt1,pt2,pt3,pt4;

        acutPolar(center,PI/4,lt2_radius,asDblArray(pt1));//获得与圆心成45度角的圆周点
        acutPolar(center,5*PI/4,lt2_radius,asDblArray(pt2));
        acutPolar(center,3*PI/4,lt2_radius,asDblArray(pt3));
        acutPolar(center,7*PI/4,lt2_radius,asDblArray(pt4));

        AcDbLine *pLine;

        pLine=new AcDbLine(pt1,pt2);
        AcDbObjectId lineId1;
        //AddEntityToDbs(pLine);
        pLtBlockTableRec->appendAcDbEntity(lineId1,pLine);
        pLine->close();
       
        pLine=new AcDbLine(pt3,pt4);
        AcDbObjectId lineId2;
        //AddEntityToDbs(pLine);
        pLtBlockTableRec->appendAcDbEntity(lineId2,pLine);
        pLine->close();
        pLtBlockTableRec->close();
AcDbBlockReference *pBlkRef=new AcDbBlockReference;
        pBlkRef->setBlockTableRecord(blockId);

        struct resbuf to,from;
        from.restype=RTSHORT;
        from.resval.rint=1;
        to.restype=RTSHORT;
        to.resval.rint=0;
        AcGeVector3d normal(0.0,0.0,1.0);
        acedTrans(&(normal.x),&from,&to,Adesk::kTrue,&(normal.x));

        pBlkRef->setPosition(basePoint);
        pBlkRef->setRotation(0.0);
        pBlkRef->setNormal(normal);

        acdbCurDwg()->getSymbolTable(pBlockTable,AcDb::kForRead);
        AcDbBlockTableRecord *pBlockTableRec;
        pBlockTable->getAt(ACDB_MODEL_SPACE,pBlockTableRec,AcDb::kForWrite);
        pBlockTable->close();

        AcDbObjectId newEntId;
        pBlockTableRec->appendAcDbEntity(newEntId,pBlkRef);
        pBlockTableRec->close();

        INSERT("ASDK_BLOCK_LT2",center,1,"0");

fengyuan95

pBlockTable->add(blockId,pLtBlockTableRec);
看看是不是把这句放到块内图形添加的代码后

binbin

...
AcDbObjectId newEntId;
pBlockTableRec->appendAcDbEntity(newEntId,pBlkRef);
pBlockTableRec->close();

pBlkRef->close();      //这句话你忘了

Bazhaoyu

刚才我试了
出现了崩溃
有提示：Invalid  type in acutBulidList() arg#g
还有一个图C:\Documents and Settings\lihui\桌面[/IMG]

fengyuan95

INSERT("ASDK_BLOCK_LT2",center,1,"0"); 这句干什么用？
if (acdbEntLast(ent_lt2[0])!=RTNORM) {
acdbFail("\nFail create last entity.");
return;
}
这些又是干什么的？

Bazhaoyu

INSERT("ASDK_BLOCK_LT2",center,1,"0");这句话是插入刚才我定义的块，INSERT是我自定义的宏！这个宏没错，但是后面的参数有问题，我调试了就到这句出问题，但不知道该怎么改
if (acdbEntLast(ent_lt2[0])!=RTNORM) {
acdbFail("\nFail create last entity.");
return;
}这个是获得最后一个实体啊，没有错！

peakhill

好像没有问题,是不是对块的操作有误.

Bazhaoyu

我已经找到了INSERT("ASDK_BLOCK_LT2",center,1,"0");这句是多余的，因为我已经将块引用加入到模型空间中了！谢谢大家！