Method DrawPoints

Rendering/ContextOpenGL2/vtkOpenGLContextDevice3D.cxx:402–422

}

void vtkOpenGLContextDevice3D::DrawPoints(
  const float* verts, int n, const unsigned char* colors, int nc)
{
  // build up temporary vtkDataArrays without copying the data.
  vtkNew<vtkFloatArray> positionsArray;
  vtkNew<vtkUnsignedCharArray> colorsArray;

  positionsArray->SetNumberOfComponents(3);
  positionsArray->SetNumberOfTuples(n);
  std::copy(verts, verts + n * 3, positionsArray->Begin());

  if (colors != nullptr)
  {
    vtkErrorMacro(<< "Here");
    colorsArray->SetNumberOfComponents(nc);
    colorsArray->SetNumberOfTuples(n);
    std::copy(colors, colors + n * nc, colorsArray->Begin());
  }

  this->DrawPoints(positionsArray, colorsArray, /*cacheIdentifier=*/0);
}

void vtkOpenGLContextDevice3D::DrawPoints(
  vtkDataArray* positions, vtkUnsignedCharArray* colors, std::uintptr_t cacheIdentifier)