Method RequestData

Infovis/BoostGraphAlgorithms/vtkBoostDividedEdgeBundling.cxx:539–576

}

int vtkBoostDividedEdgeBundling::RequestData(vtkInformation* vtkNotUsed(request),
  vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
  // get the info objects
  vtkInformation* graphInfo = inputVector[0]->GetInformationObject(0);
  vtkInformation* outInfo = outputVector->GetInformationObject(0);

  // get the input and output
  vtkDirectedGraph* g =
    vtkDirectedGraph::SafeDownCast(graphInfo->Get(vtkDataObject::DATA_OBJECT()));
  vtkDirectedGraph* output =
    vtkDirectedGraph::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));

  vtkBundlingMetadata* meta = new vtkBundlingMetadata(this, g);

  meta->NormalizeNodePositions();
  meta->CalculateEdgeLengths();
  meta->CalculateNodeDistances();
  meta->CalculateEdgeCompatibilities();
  meta->LayoutEdgePoints();
  meta->DenormalizeNodePositions();

  output->ShallowCopy(g);

  for (vtkIdType e = 0; e < g->GetNumberOfEdges(); ++e)
  {
    output->ClearEdgePoints(e);
    for (int m = 1; m < meta->MeshCount - 1; ++m)
    {
      vtkVector3f edgePoint = meta->EdgeMesh[e][m];
      output->AddEdgePoint(e, edgePoint[0], edgePoint[1], edgePoint[2]);
    }
  }

  delete meta;

  return 1;
}

void vtkBoostDividedEdgeBundling::PrintSelf(ostream& os, vtkIndent indent)
{