Function SetColorAndOpacity

Rendering/VtkJS/vtkVtkJSSceneGraphSerializer.cxx:307–334

namespace
{
void SetColorAndOpacity(
  Json::Value& property, vtkCompositePolyDataMapper* mapper, vtkDataObject* block)
{
  static const std::array<std::string, 4> colorProperties = { "ambientColor", "color",
    "diffuseColor", "specularColor" };

  // Set the color and opacity according to the dataset's corresponding block
  // information.
  vtkCompositeDataDisplayAttributes* atts = mapper->GetCompositeDataDisplayAttributes();
  if (atts->HasBlockColor(block))
  {
    for (int i = 0; i < 3; i++)
    {
      for (auto& colorProperty : colorProperties)
      {
        property["properties"][colorProperty.c_str()][i] = atts->GetBlockColor(block)[i];
      }
    }
  }
  if (atts->HasBlockOpacity(block))
  {
    property["properties"]["opacity"] = atts->GetBlockOpacity(block);
  }
  if (atts->HasBlockVisibility(block))
  {
    property["properties"]["visibility"] = atts->GetBlockVisibility(block);
  }
}
}

//------------------------------------------------------------------------------