Function splitQuad

source/MRMesh/MRMeshFillHole.cpp:1201–1216

}

void splitQuad( MeshTopology & topology, EdgeId a, FaceBitSet * outNewFaces )
{
    assert( topology.isLeftQuad( a ) );
    assert( topology.left( a ) );
    auto d = topology.makeEdge();
    topology.splice( topology.prev( a.sym() ), d );
    topology.splice( topology.next( a ).sym(), d.sym() );
    assert( topology.isLeftTri( d ) );
    assert( topology.isLeftTri( d.sym() ) );
    assert( topology.left( d ) );
    assert( !topology.left( d.sym() ) );
    auto f = topology.addFaceId();
    topology.setLeft( d.sym(), f );
    if ( outNewFaces )
        outNewFaces->autoResizeSet( f );
}

MakeBridgeResult makeBridge( MeshTopology & topology, EdgeId a, EdgeId b, FaceBitSet * outNewFaces )
{