Objectarx 相交矩形求并集 面域转多段线

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static voidECDMyGroupEUnion() {

DrawRecJig recJig=DrawRecJig();

ads_point pt;

AcDbPolyline*pl1 = NULL, *pl2 =NULL;if (acedGetPoint(NULL, L"\n请选择插入点：", pt) ==RTNORM) {

AcDbObjectId oId1, oId2;if(recJig.DoIt(asPnt3d(pt), oId1)) {

pl1=AcDbPolyline::cast(recJig.entity());

}if(recJig.DoIt(asPnt3d(pt), oId2)) {

pl2=AcDbPolyline::cast(recJig.entity());

}

AcDbVoidPtrArray curveSegments;

AcDbVoidPtrArray regions;

curveSegments.append(pl1);

curveSegments.append(pl2);if (AcDbRegion::createFromCurves(curveSegments, regions) ==Acad::eOk) {

AcDbRegion*region =(AcDbRegion *)regions[0];

region->booleanOper(AcDb::BoolOperType::kBoolUnite, (AcDbRegion *)regions[1]);

AcGePoint3dArray ptArr;

CRegionUtil::GetRegionPoints(region, ptArr);for (int i = 0; i < regions.length (); i++)

{

AcDbRegion*regionTemp = (AcDbRegion *)regions[i];

regionTemp->erase();

regionTemp->close();

}

region->close();

AcDbPolyline*plTemp1 = newAcDbPolyline();for (int i = 0; i

{

plTemp1->addVertexAt(plTemp1->numVerts(), CConvertUtil::ToPoint2d(ptArr.at(i)), 0, 0, 0);

}

plTemp1->setClosed(Adesk::kTrue);

plTemp1->setColorIndex(1);

CDwgDataBaseUtil::PostToModelSpace(plTemp1);

plTemp1->close();

}

pl1->close();

pl2->close();

}

}