Method CreatePlotData

Rendering/Annotation/vtkXYPlotActor.cxx:1765–2125

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//------------------------------------------------------------------------------
void vtkXYPlotActor::CreatePlotData(
  int* pos, int* pos2, double xRange[2], double yRange[2], double* lengths, int numDS, int numDO)
{
  double xyz[3];
  xyz[2] = 0.;
  int i, numLinePts, doNum, num;
  vtkIdType numPts, ptId, id;
  double length, x[3], xPrev[3];
  vtkDataArray* scalars;
  int component;
  vtkDataSet* ds;
  vtkCellArray* lines;
  vtkPoints* pts;
  int clippingRequired = 0;

  // Allocate resources for the polygonal plots
  //
  num = (numDS > numDO ? numDS : numDO);
  this->InitializeEntries();
  this->NumberOfInputs = num;
  this->PlotData = new vtkPolyData*[num];
  this->PlotGlyph = new vtkGlyph2D*[num];
  this->PlotAppend = new vtkAppendPolyData*[num];
  this->PlotMapper = new vtkPolyDataMapper2D*[num];
  this->PlotActor = new vtkActor2D*[num];
  for (i = 0; i < num; i++)
  {
    this->PlotData[i] = vtkPolyData::New();
    this->PlotGlyph[i] = vtkGlyph2D::New();
    this->PlotGlyph[i]->SetInputData(this->PlotData[i]);
    this->PlotGlyph[i]->SetScaleModeToDataScalingOff();
    this->PlotAppend[i] = vtkAppendPolyData::New();
    this->PlotAppend[i]->AddInputData(this->PlotData[i]);
    if (this->LegendActor->GetEntrySymbol(i) != nullptr &&
      this->LegendActor->GetEntrySymbol(i) != this->GlyphSource->GetOutput())
    {
      this->PlotGlyph[i]->SetSourceData(this->LegendActor->GetEntrySymbol(i));
      this->PlotGlyph[i]->SetScaleFactor(this->ComputeGlyphScale(i, pos, pos2));
      this->PlotAppend[i]->AddInputConnection(this->PlotGlyph[i]->GetOutputPort());
    }
    this->PlotMapper[i] = vtkPolyDataMapper2D::New();
    this->PlotMapper[i]->SetInputConnection(this->PlotAppend[i]->GetOutputPort());
    this->PlotMapper[i]->ScalarVisibilityOff();
    this->PlotActor[i] = vtkActor2D::New();
    this->PlotActor[i]->SetMapper(this->PlotMapper[i]);
    this->PlotActor[i]->GetProperty()->DeepCopy(this->GetProperty());
    if (this->LegendActor->GetEntryColor(i)[0] < 0.0)
    {
      this->PlotActor[i]->GetProperty()->SetColor(this->GetProperty()->GetColor());
    }
    else
    {
      this->PlotActor[i]->GetProperty()->SetColor(this->LegendActor->GetEntryColor(i));
    }
  }

  // Prepare to receive data
  this->GenerateClipPlanes(pos, pos2);