objectarx图元平面对齐

admin1

[code]static void MyGroupMyCommand5 ()
{
        ads_name en; ads_point p1; ads_point p2;
        if (acedEntSel(_T("\n选择一个对象: "),en,p1) != RTNORM ||
                acedGetPoint(NULL,_T("\n第一个出发点: "),p1) != RTNORM ||
                acedGetPoint(p1,  _T("\n第一个目标点: "),p2)  != RTNORM) return;
        AcGePoint3d pSrcPt1(p1[X],p1[Y],p1[Z]); AcGePoint3d pDestPt1(p2[X],p2[Y],p2[Z]);
        if (acedGetPoint(NULL,_T("\n第二个出发点: "),p1) != RTNORM ||
                acedGetPoint(p1,  _T("\n第二个目标点: "),p2)  != RTNORM) return;
        AcGePoint3d pSrcPt2(p1[X],p1[Y],p1[Z]); AcGePoint3d pDestPt2(p2[X],p2[Y],p2[Z]);

        AcDbObjectId id;
        acdbGetObjectId(id,en);
        ALIGN1(id,pSrcPt1,pDestPt1,pSrcPt2,pDestPt2);
}


//图元对齐 (图元 id,第一个出发点 pSrcPt1, 第一个目标点 pDestPt1, 第二个出发点 pSrcPt2, 第二个目标点 pDestPt2)
static void ALIGN1(AcDbObjectId id,AcGePoint3d pSrcPt1, AcGePoint3d pDestPt1, AcGePoint3d pSrcPt2, AcGePoint3d pDestPt2)
        {
                AcGeVector3d v1(pSrcPt1 - pSrcPt2); AcGeVector3d v2(pDestPt1 - pDestPt2);
                AcDbEntityPointer pEnt(id,AcDb::kForWrite);
                if (pEnt.openStatus() != Acad::eOk) return;
                AcGeMatrix3d mMatScale; AcGeMatrix3d mMatRot; AcGeMatrix3d mMatResul;
                mMatRot = v1.rotateTo(v2);
                mMatScale.setToScaling(v2.length()/v1.length()); mMatResul = mMatRot * mMatScale;pSrcPt1.transformBy(mMatResul);
                mMatResul.setTranslation(pDestPt1 - pSrcPt1);
                pEnt->transformBy(mMatResul);
                pEnt->close();
        }[/code]