[请问]如何改变UCS?

lxspine

请问如何改变UCS？我的这个方法没有效果（想改变Z坐标值，其他的值不变）：

void SetNewUCSZ(double Z)
{
 acDocManager->lockDocument(curDoc(),AcAp::kWrite,NULL,NULL,true);

 AcDbViewportTable* pVPTable;
 acdbHostApplicationServices()->workingDatabase() ->getViewportTable(pVPTable,AcDb::kForWrite);

 AcGePoint3d ptOrigin;
 AcGeVector3d vecXAxis;
 AcGeVector3d vecYAxis;
 //获得当前视口记录
 AcDbViewportTableRecord *pVPCurrent;
 pVPTable->getAt("*ACTIVE", pVPCurrent, AcDb::kForWrite);

 //改变UCS
 pVPCurrent->getUcs(ptOrigin,vecXAxis,vecYAxis);
 ptOrigin.z=Z;
 Acad::ErrorStatus aa=pVPCurrent->setUcs(ptOrigin,vecXAxis,vecYAxis);
 pVPCurrent->close();

 pVPTable->close();
 acDocManager->unlockDocument(curDoc());

}

yinpengji

用acedSetCurrentUCS();来设置

AcGeMatrix3d mat;

mat.entry[0][0] = (aUcsRecord->xAxis()).x;

mat.entry[1][0] = (aUcsRecord->xAxis()).y;

mat.entry[2][0] = (aUcsRecord->xAxis()).z;

mat.entry[0][1] = (aUcsRecord->yAxis()).x;

mat.entry[1][1] = (aUcsRecord->yAxis()).y;

mat.entry[2][1] = (aUcsRecord->yAxis()).z;

acedSetCurrentUCS(mat);

mat.entry[0][0] = (aUcsRecord->xAxis()).x;

mat.entry[1][0] = (aUcsRecord->xAxis()).y;

mat.entry[2][0] = (aUcsRecord->xAxis()).z;

mat.entry[0][1] = (aUcsRecord->yAxis()).x;

mat.entry[1][1] = (aUcsRecord->yAxis()).y;

mat.entry[2][1] = (aUcsRecord->yAxis()).z;

acedSetCurrentUCS(mat);