Method AddLinkEdge

Infovis/Core/vtkTableToGraph.cxx:188–222

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkTableToGraph::AddLinkEdge(const char* column1, const char* column2)
{
  if (!column1 || !column2)
  {
    vtkErrorMacro("Column names may not be null.");
  }
  this->ValidateLinkGraph();
  vtkStringArray* columnArr =
    vtkArrayDownCast<vtkStringArray>(this->LinkGraph->GetVertexData()->GetAbstractArray("column"));
  vtkIdType source = -1;
  vtkIdType target = -1;
  for (vtkIdType i = 0; i < this->LinkGraph->GetNumberOfVertices(); i++)
  {
    if (column1 == columnArr->GetValue(i))
    {
      source = i;
    }
    if (column2 == columnArr->GetValue(i))
    {
      target = i;
    }
  }
  if (source < 0)
  {
    this->AddLinkVertex(column1);
    source = this->LinkGraph->GetNumberOfVertices() - 1;
  }
  if (target < 0)
  {
    this->AddLinkVertex(column2);
    target = this->LinkGraph->GetNumberOfVertices() - 1;
  }
  this->LinkGraph->AddEdge(source, target);
  this->Modified();
}

//------------------------------------------------------------------------------
void vtkTableToGraph::ClearLinkEdges()