C++ SpatialLocalizer::init方法代码示例

void
FreeWarping :: computeResultAtCenterOfGravity(TimeStep *tStep)
{
    int noCS = this->giveDomain(1)->giveNumberOfCrossSectionModels(); //number of warping Crosssections
    SolutionAtCG.resize(noCS);
    Element *closestElement;
    FloatArray lcoords,  closest, lcg;
    SpatialLocalizer *sp = this->giveDomain(1)->giveSpatialLocalizer();
    sp->init();
    lcoords.resize(2);
    closest.resize(2);
    lcg.resize(2);

    for ( int j = 1; j <= noCS; ++j ) {
        lcg.at(1) = CG.at(j, 1);
        lcg.at(2) = CG.at(j, 2);
        closestElement = sp->giveElementClosestToPoint(lcoords, closest, lcg, 0);

        StructuralElement *sE = dynamic_cast< StructuralElement * >(closestElement);
        FloatArray u, r, b;
        FloatMatrix N;
        sE->computeNmatrixAt(lcoords, N);
        sE->computeVectorOf(VM_Total, tStep, u);
        u.resizeWithValues(3);
        r.beProductOf(N, u);

        SolutionAtCG.at(j) = r.at(1);
    }
}

void HangingNode :: postInitialize()
{
    Node :: postInitialize();

    Element *e;
    FEInterpolation *fei;
    FloatArray lcoords, masterContribution;

#ifdef __OOFEG
    if ( initialized ) {
        return;
    }
    initialized = true;
#endif

    // First check element and interpolation
    if ( masterElement == -1 ) { // Then we find it by taking the closest (probably containing element)
        FloatArray closest;
        SpatialLocalizer *sp = this->domain->giveSpatialLocalizer();
        sp->init();
        // Closest point or containing point? It should be contained, but with numerical errors it might be slightly outside
        // so the closest point is more robust.
        if ( !( e = sp->giveElementClosestToPoint(lcoords, closest, coordinates, this->masterRegion) ) ) {
            OOFEM_ERROR("Couldn't find closest element (automatically).");
        }
        this->masterElement = e->giveNumber();
    } else if ( !( e = this->giveDomain()->giveElement(this->masterElement) ) ) {
        OOFEM_ERROR("Requested element %d doesn't exist.", this->masterElement);
    }
    if ( !( fei = e->giveInterpolation() ) ) {
        OOFEM_ERROR("Requested element %d doesn't have a interpolator.", this->masterElement);
    }

    if ( lcoords.giveSize() == 0 ) { // we don't need to do this again if the spatial localizer was used.
        fei->global2local( lcoords, coordinates, FEIElementGeometryWrapper(e) );
    }

    // Initialize slave dofs (inside check of consistency of receiver and master dof)
    const IntArray &masterNodes = e->giveDofManArray();
    for ( Dof *dof: *this ) {
        SlaveDof *sdof = dynamic_cast< SlaveDof * >(dof);
        if ( sdof ) {
            DofIDItem id = sdof->giveDofID();
            fei = e->giveInterpolation(id);
            if ( !fei ) {
                OOFEM_ERROR("Requested interpolation for dof id %d doesn't exist in element %d.",
                             id, this->masterElement);
            }
#if 0 // This won't work (yet), as it requires some more general FEI classes, or something similar.
            if ( fei->hasMultiField() ) {
                FloatMatrix multiContribution;
                IntArray masterDofIDs, masterNodesDup, dofids;
                fei->evalMultiN(multiContribution, dofids, lcoords, FEIElementGeometryWrapper(e), 0.0);
                masterContribution.flatten(multiContribution);
                masterDofIDs.clear();
                for ( int i = 0; i <= multiContribution.giveNumberOfColumns(); ++i ) {
                    masterDofIDs.followedBy(dofids);
                    masterNodesDup.followedBy(masterNodes);
                }
                sdof->initialize(masterNodesDup, & masterDofIDs, masterContribution);
            } else { }
#else
            // Note: There can be more masterNodes than masterContributions, since all the
            // FEI classes are based on that the first nodes correspond to the simpler/linear interpolation.
            // If this assumption is changed in FEIElementGeometryWrapper + friends,
            // masterNode will also need to be modified for each dof accordingly.
            fei->evalN( masterContribution, lcoords, FEIElementGeometryWrapper(e) );
            sdof->initialize(masterNodes, IntArray(), masterContribution);
#endif
        }
    }
}