Method GenerateRepresentation

Filters/FlowPaths/vtkModifiedBSPTree.cxx:486–539

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//------------------------------------------------------------------------------
void vtkModifiedBSPTree::GenerateRepresentation(int level, vtkPolyData* pd)
{
  this->BuildLocator();
  if (this->mRoot == nullptr)
  {
    return;
  }
  nodestack ns;
  boxlist bl;
  BSPNode* node;
  ns.push(this->mRoot.get());
  // lets walk the tree and get all the level n node boxes
  while (!ns.empty())
  {
    node = ns.top();
    ns.pop();
    if (node->depth == level)
    {
      bl.emplace_back(node->Bounds);
    }
    else
    {
      if (node->mChild[0])
      {
        ns.push(node->mChild[0]);
        if (node->mChild[1])
        {
          ns.push(node->mChild[1]);
        }
        ns.push(node->mChild[2]);
      }
      else if (level == -1)
      {
        bl.emplace_back(node->Bounds);
      }
    }
  }

  // Ok, now create cube(oid)s and stuff'em into a polydata thingy
  vtkAppendPolyData* polys = vtkAppendPolyData::New();
  size_t s = bl.size();
  for (size_t i = 0; i < s; i++)
  {
    vtkCubeSource* cube = vtkCubeSource::New();
    cube->SetBounds(bl[i].bounds);
    cube->Update();
    polys->AddInputConnection(cube->GetOutputPort());
    cube->Delete();
  }
  polys->Update();
  pd->SetPoints(polys->GetOutput()->GetPoints());
  pd->SetPolys(polys->GetOutput()->GetPolys());
  polys->Delete();
}

//------------------------------------------------------------------------------
void vtkModifiedBSPTree::GenerateRepresentationLeafs(vtkPolyData* pd)