C++ SPtr::createChild方法代码示例

    /// It is important to freeze what are the available Data field
    /// of a component and rise warning/errors when some one removed.
    ///
    void attributesTests(){
        m_node = m_root->createChild("node") ;
        m_mass = New< TheUniformMass >() ;
        m_node->addObject(m_mass) ;

        EXPECT_TRUE( m_mass->findData("mass") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("totalmass") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("filename") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("localRange") != nullptr ) ;

        EXPECT_TRUE( m_mass->findData("showGravityCenter") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("showAxisSizeFactor") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("showInitialCenterOfGravity") != nullptr ) ;

        EXPECT_TRUE( m_mass->findData("indices") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("handleTopoChange") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("preserveTotalMass") != nullptr ) ;

        EXPECT_TRUE( m_mass->findData("compute_mapping_inertia") != nullptr ) ;
        EXPECT_TRUE( m_mass->findData("totalMass") != nullptr ) ;
        return ;
    }

/**
  * @brief another complex case

  R______
 / \ \ \ \
 A B C D E
 \/__/_/_/
  F
  |\
  G |
  |/
  H

     */
    void traverse_morecomplex2()
    {
        Node::SPtr root = clearScene();
        root->setName("R");
        Node::SPtr A = root->createChild("A");
        Node::SPtr B = root->createChild("B");
        Node::SPtr C = root->createChild("C");
        Node::SPtr D = root->createChild("D");
        Node::SPtr E = root->createChild("E");
        Node::SPtr F = A->createChild("F");
        B->addChild(F);
        C->addChild(F);
        D->addChild(F);
        E->addChild(F);
        Node::SPtr G = F->createChild("G");
        Node::SPtr H = G->createChild("H");
        F->addChild(H);

        traverse_test( root, "RAFGHHGFABBCCDDEER",
                       "RAFGHHGHHFABFGHHGHHFBCFGHHGHHFCDFGHHGHHFDEFGHHGHHFER",
                       "RAFGHHGHHFABFFBCFFCDFFDEFFER",
                       "RABCDEFGH" );
    }

Node::SPtr createChild(Node::SPtr node, BaseObjectDescription& desc)
{
    Node::SPtr tmp = node->createChild(desc.getName());
    tmp->parse(&desc);
    return tmp;
}

/// Create an assembly of a siff hexahedral grid with other objects
simulation::Node::SPtr createGridScene(Vec3 startPoint, Vec3 endPoint, unsigned numX, unsigned numY, unsigned numZ, double totalMass/*, double stiffnessValue, double dampingRatio=0.0*/ )
{
    using helper::vector;

    // The graph root node
    Node::SPtr  root = simulation::getSimulation()->createNewGraph("root");
    root->setGravity( Coord3(0,-10,0) );
    root->setAnimate(false);
    root->setDt(0.01);
    addVisualStyle(root)->setShowVisual(false).setShowCollision(false).setShowMapping(true).setShowBehavior(true);

    Node::SPtr simulatedScene = root->createChild("simulatedScene");

    EulerImplicitSolver::SPtr eulerImplicitSolver = New<EulerImplicitSolver>();
    simulatedScene->addObject( eulerImplicitSolver );
    CGLinearSolver::SPtr cgLinearSolver = New<CGLinearSolver>();
    simulatedScene->addObject(cgLinearSolver);

    // The rigid object
    Node::SPtr rigidNode = simulatedScene->createChild("rigidNode");
    MechanicalObjectRigid3::SPtr rigid_dof = addNew<MechanicalObjectRigid3>(rigidNode, "dof");
    UniformMassRigid3::SPtr rigid_mass = addNew<UniformMassRigid3>(rigidNode,"mass");
    FixedConstraintRigid3::SPtr rigid_fixedConstraint = addNew<FixedConstraintRigid3>(rigidNode,"fixedConstraint");

    // Particles mapped to the rigid object
    Node::SPtr mappedParticles = rigidNode->createChild("mappedParticles");
    MechanicalObject3::SPtr mappedParticles_dof = addNew< MechanicalObject3>(mappedParticles,"dof");
    RigidMappingRigid3_to_3::SPtr mappedParticles_mapping = addNew<RigidMappingRigid3_to_3>(mappedParticles,"mapping");
    mappedParticles_mapping->setModels( rigid_dof.get(), mappedParticles_dof.get() );

    // The independent particles
    Node::SPtr independentParticles = simulatedScene->createChild("independentParticles");
    MechanicalObject3::SPtr independentParticles_dof = addNew< MechanicalObject3>(independentParticles,"dof");

    // The deformable grid, connected to its 2 parents using a MultiMapping
    Node::SPtr deformableGrid = independentParticles->createChild("deformableGrid"); // first parent
    mappedParticles->addChild(deformableGrid);                                       // second parent

    RegularGridTopology::SPtr deformableGrid_grid = addNew<RegularGridTopology>( deformableGrid, "grid" );
    deformableGrid_grid->setNumVertices(numX,numY,numZ);
    deformableGrid_grid->setPos(startPoint[0],endPoint[0],startPoint[1],endPoint[1],startPoint[2],endPoint[2]);

    MechanicalObject3::SPtr deformableGrid_dof = addNew< MechanicalObject3>(deformableGrid,"dof");

    SubsetMultiMapping3_to_3::SPtr deformableGrid_mapping = addNew<SubsetMultiMapping3_to_3>(deformableGrid,"mapping");
    deformableGrid_mapping->addInputModel(independentParticles_dof.get()); // first parent
    deformableGrid_mapping->addInputModel(mappedParticles_dof.get());      // second parent
    deformableGrid_mapping->addOutputModel(deformableGrid_dof.get());

    UniformMass3::SPtr mass = addNew<UniformMass3>(deformableGrid,"mass" );
    mass->mass.setValue( totalMass/(numX*numY*numZ) );

    HexahedronFEMForceField3::SPtr hexaFem = addNew<HexahedronFEMForceField3>(deformableGrid, "hexaFEM");
    hexaFem->f_youngModulus.setValue(1000);
    hexaFem->f_poissonRatio.setValue(0.4);


    // ======  Set up the multimapping and its parents, based on its child
    deformableGrid_grid->init();  // initialize the grid, so that the particles are located in space
    deformableGrid_dof->init();   // create the state vectors
    MechanicalObject3::ReadVecCoord  xgrid = deformableGrid_dof->readPositions(); //    cerr<<"xgrid = " << xgrid << endl;


    // create the rigid frames and their bounding boxes
    unsigned numRigid = 2;
    vector<BoundingBox> boxes(numRigid);
    vector< vector<unsigned> > indices(numRigid); // indices of the particles in each box
    double eps = (endPoint[0]-startPoint[0])/(numX*2);

    // first box, x=xmin
    boxes[0] = BoundingBox(Vec3d(startPoint[0]-eps, startPoint[1]-eps, startPoint[2]-eps),
                           Vec3d(startPoint[0]+eps,   endPoint[1]+eps,   endPoint[2]+eps));

    // second box, x=xmax
    boxes[1] = BoundingBox(Vec3d(endPoint[0]-eps, startPoint[1]-eps, startPoint[2]-eps),
                           Vec3d(endPoint[0]+eps,   endPoint[1]+eps,   endPoint[2]+eps));
    rigid_dof->resize(numRigid);
    MechanicalObjectRigid3::WriteVecCoord xrigid = rigid_dof->writePositions();
    xrigid[0].getCenter()=Vec3d(startPoint[0], 0.5*(startPoint[1]+endPoint[1]), 0.5*(startPoint[2]+endPoint[2]));
    xrigid[1].getCenter()=Vec3d(  endPoint[0], 0.5*(startPoint[1]+endPoint[1]), 0.5*(startPoint[2]+endPoint[2]));

    // find the particles in each box
    vector<bool> isFree(xgrid.size(),true);
    unsigned numMapped = 0;
    for(unsigned i=0; i<xgrid.size(); i++){
        for(unsigned b=0; b<numRigid; b++ )
        {
            if( isFree[i] && boxes[b].contains(xgrid[i]) )
            {
                indices[b].push_back(i); // associate the particle with the box
                isFree[i] = false;
                numMapped++;
            }
        }
    }

    // distribution of the grid particles to the different parents (independent particle or solids.
    vector< pair<MechanicalObject3*,unsigned> > parentParticles(xgrid.size());

//.........这里部分代码省略.........