C++ BoundBox3d::LengthY方法代码示例

void PointsGrid::CalculateGridLength (unsigned long ulCtGrid, unsigned long ulMaxGrids)
{
  // Grid Laengen bzw. Anzahl der Grids pro Dimension berechnen
  // pro Grid sollen ca. 10 (?!?!) Facets liegen
  // bzw. max Grids sollten 10000 nicht ueberschreiten
  Base::BoundBox3d clBBPtsEnlarged;// = _pclPoints->GetBoundBox();
  for (PointKernel::const_iterator it = _pclPoints->begin(); it != _pclPoints->end(); ++it )
    clBBPtsEnlarged.Add(*it);
  double fVolElem;

  if (_ulCtElements > (ulMaxGrids * ulCtGrid))
    fVolElem = (clBBPtsEnlarged.LengthX() * clBBPtsEnlarged.LengthY() * clBBPtsEnlarged.LengthZ()) / float(ulMaxGrids * ulCtGrid);
  else
    fVolElem = (clBBPtsEnlarged.LengthX() * clBBPtsEnlarged.LengthY() * clBBPtsEnlarged.LengthZ()) / float(_ulCtElements);

  double fVol     = fVolElem * float(ulCtGrid);
  double fGridLen = float(pow((float)fVol,(float) 1.0f / 3.0f));

  _ulCtGridsX = std::max<unsigned long>((unsigned long)(clBBPtsEnlarged.LengthX() / fGridLen), 1);
  _ulCtGridsY = std::max<unsigned long>((unsigned long)(clBBPtsEnlarged.LengthY() / fGridLen), 1);
  _ulCtGridsZ = std::max<unsigned long>((unsigned long)(clBBPtsEnlarged.LengthZ() / fGridLen), 1);
}

PointsGrid::PointsGrid (const PointKernel &rclM, double fGridLen)
: _pclPoints(&rclM),
  _ulCtElements(0),
  _ulCtGridsX(0), _ulCtGridsY(0), _ulCtGridsZ(0),
  _fGridLenX(0.0f), _fGridLenY(0.0f), _fGridLenZ(0.0f),
  _fMinX(0.0f), _fMinY(0.0f), _fMinZ(0.0f)
{
  Base::BoundBox3d clBBPts;// = _pclPoints->GetBoundBox();
  for (PointKernel::const_iterator it = _pclPoints->begin(); it != _pclPoints->end(); ++it )
    clBBPts.Add(*it);
  Rebuild(std::max<unsigned long>((unsigned long)(clBBPts.LengthX() / fGridLen), 1),
          std::max<unsigned long>((unsigned long)(clBBPts.LengthY() / fGridLen), 1),
          std::max<unsigned long>((unsigned long)(clBBPts.LengthZ() / fGridLen), 1));
}

void PointsGrid::InitGrid (void)
{
  assert(_pclPoints != NULL);

  unsigned long i, j;

  // Grid Laengen berechnen wenn nicht initialisiert
  //
  if ((_ulCtGridsX == 0) || (_ulCtGridsY == 0) || (_ulCtGridsZ == 0))
    CalculateGridLength(POINTS_CT_GRID, POINTS_MAX_GRIDS);

  // Grid Laengen und Offset bestimmen
  //
  {
  Base::BoundBox3d clBBPts;// = _pclPoints->GetBoundBox();
  for (PointKernel::const_iterator it = _pclPoints->begin(); it != _pclPoints->end(); ++it )
    clBBPts.Add(*it);

  double fLengthX = clBBPts.LengthX(); 
  double fLengthY = clBBPts.LengthY();
  double fLengthZ = clBBPts.LengthZ();

  {
    // Offset fGridLen/2
    //
    _fGridLenX = (1.0f + fLengthX) / double(_ulCtGridsX);
    _fMinX = clBBPts.MinX - 0.5f;
  }

  {
    _fGridLenY = (1.0f + fLengthY) / double(_ulCtGridsY);
    _fMinY = clBBPts.MinY - 0.5f;
  }

  {
    _fGridLenZ = (1.0f + fLengthZ) / double(_ulCtGridsZ);
    _fMinZ = clBBPts.MinZ - 0.5f;
  }
  }

  // Daten-Struktur anlegen
  _aulGrid.clear();
  _aulGrid.resize(_ulCtGridsX);
  for (i = 0; i < _ulCtGridsX; i++)
  {
    _aulGrid[i].resize(_ulCtGridsY);
    for (j = 0; j < _ulCtGridsY; j++)
      _aulGrid[i][j].resize(_ulCtGridsZ);
  }
}

void Tessellation::findShapes()
{
    App::Document* activeDoc = App::GetApplication().getActiveDocument();
    if (!activeDoc) return;
    Gui::Document* activeGui = Gui::Application::Instance->getDocument(activeDoc);
    if (!activeGui) return;

    this->document = QString::fromAscii(activeDoc->getName());
    std::vector<Part::Feature*> objs = activeDoc->getObjectsOfType<Part::Feature>();

    double edgeLen = 0;
    bool foundSelection = false;
    for (std::vector<Part::Feature*>::iterator it = objs.begin(); it!=objs.end(); ++it) {
        const TopoDS_Shape& shape = (*it)->Shape.getValue();
        if (shape.IsNull()) continue;
        bool hasfaces = false;
        TopExp_Explorer xp(shape,TopAbs_FACE);
        while (xp.More()) {
            hasfaces = true;
            break;
        }

        if (hasfaces) {
            Base::BoundBox3d bbox = (*it)->Shape.getBoundingBox();
            edgeLen = std::max<double>(edgeLen, bbox.LengthX());
            edgeLen = std::max<double>(edgeLen, bbox.LengthY());
            edgeLen = std::max<double>(edgeLen, bbox.LengthZ());
            QString label = QString::fromUtf8((*it)->Label.getValue());
            QString name = QString::fromAscii((*it)->getNameInDocument());
            
            QTreeWidgetItem* child = new QTreeWidgetItem();
            child->setText(0, label);
            child->setToolTip(0, label);
            child->setData(0, Qt::UserRole, name);
            Gui::ViewProvider* vp = activeGui->getViewProvider(*it);
            if (vp) child->setIcon(0, vp->getIcon());
            ui->treeWidget->addTopLevelItem(child);
            if (Gui::Selection().isSelected(*it)) {
                child->setSelected(true);
                foundSelection = true;
            }
        }
    }

    ui->spinMaximumEdgeLength->setValue(edgeLen/10);
    if (foundSelection)
        ui->treeWidget->hide();
}

void ViewProviderInspection::updateData(const App::Property* prop)
{
    // set to the expected size
    if (prop->getTypeId() == App::PropertyLink::getClassTypeId()) {
        App::GeoFeature* object = static_cast<const App::PropertyLink*>(prop)->getValue<App::GeoFeature*>();
        if (object) {
            float accuracy=0;
            Base::Type meshId  = Base::Type::fromName("Mesh::Feature");
            Base::Type shapeId = Base::Type::fromName("Part::Feature");
            Base::Type pointId = Base::Type::fromName("Points::Feature");
            Base::Type propId  = App::PropertyComplexGeoData::getClassTypeId();

            // set the Distance property to the correct size to sync size of material node with number
            // of vertices/points of the referenced geometry
            const Data::ComplexGeoData* data = 0;
            if (object->getTypeId().isDerivedFrom(meshId)) {
                App::Property* prop = object->getPropertyByName("Mesh");
                if (prop && prop->getTypeId().isDerivedFrom(propId)) {
                    data = static_cast<App::PropertyComplexGeoData*>(prop)->getComplexData();
                }
            }
            else if (object->getTypeId().isDerivedFrom(shapeId)) {
                App::Property* prop = object->getPropertyByName("Shape");
                if (prop && prop->getTypeId().isDerivedFrom(propId)) {
                    data = static_cast<App::PropertyComplexGeoData*>(prop)->getComplexData();
                    ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath
                        ("User parameter:BaseApp/Preferences/Mod/Part");
                    float deviation = hGrp->GetFloat("MeshDeviation",0.2);

                    Base::BoundBox3d bbox = data->getBoundBox();
                    accuracy = (float)((bbox.LengthX() + bbox.LengthY() + bbox.LengthZ())/300.0 * deviation);
                }
            }
            else if (object->getTypeId().isDerivedFrom(pointId)) {
                App::Property* prop = object->getPropertyByName("Points");
                if (prop && prop->getTypeId().isDerivedFrom(propId)) {
                    data = static_cast<App::PropertyComplexGeoData*>(prop)->getComplexData();
                }
            }

            if (data) {
                this->pcLinkRoot->removeAllChildren();
                std::vector<Base::Vector3d> points;
                std::vector<Data::ComplexGeoData::Facet> faces;
                data->getFaces(points, faces, accuracy);

                this->pcLinkRoot->addChild(this->pcCoords);
                this->pcCoords->point.setNum(points.size());
                SbVec3f* pts = this->pcCoords->point.startEditing();
                for (size_t i=0; i < points.size(); i++) {
                    const Base::Vector3d& p = points[i];
                    pts[i].setValue((float)p.x,(float)p.y,(float)p.z);
                }
                this->pcCoords->point.finishEditing();

                if (!faces.empty()) {
                    SoIndexedFaceSet* face = new SoIndexedFaceSet();
                    this->pcLinkRoot->addChild(face);
                    face->coordIndex.setNum(4*faces.size());
                    int32_t* indices = face->coordIndex.startEditing();
                    unsigned long j=0;
                    std::vector<Data::ComplexGeoData::Facet>::iterator it;
                    for (it = faces.begin(); it != faces.end(); ++it,j++) {
                        indices[4*j+0] = it->I1;
                        indices[4*j+1] = it->I2;
                        indices[4*j+2] = it->I3;
                        indices[4*j+3] = SO_END_FACE_INDEX;
                    }
                    face->coordIndex.finishEditing();
                }
                else {
                    this->pcLinkRoot->addChild(this->pcPointStyle);
                    this->pcLinkRoot->addChild(new SoPointSet());
                }
            }
        }
    }
    else if (prop->getTypeId() == Inspection::PropertyDistanceList::getClassTypeId()) {
        // force an update of the Inventor data nodes
        if (this->pcObject) {
            App::Property* link = this->pcObject->getPropertyByName("Actual");
            if (link) updateData(link);
        }
        setDistances();
    }
    else if (prop->getTypeId() == App::PropertyFloat::getClassTypeId()) {
        if (strcmp(prop->getName(), "SearchRadius") == 0) {
            float fSearchRadius = ((App::PropertyFloat*)prop)->getValue();
            this->search_radius = fSearchRadius;
            pcColorBar->setRange( -fSearchRadius, fSearchRadius, 4 );
            pcColorBar->Notify(0);
        }
    }
}