Method DeepCopy

Rendering/Core/vtkCamera.cxx:1552–1770

------------------------------------------------------------------------------ Description: Copy the properties of `source' into `this'. Copy the contents of the matrices. \pre source_exists!=0 \pre not_this: source!=this

// \pre source_exists!=0
// \pre not_this: source!=this
void vtkCamera::DeepCopy(vtkCamera* source)
{
  assert("pre: source_exists" && source != nullptr);
  assert("pre: not_this" && source != this);

  this->PartialCopy(source);

  // Deep copy the matrices:
  if (source->UserTransform == nullptr)
  {
    if (this->UserTransform != nullptr)
    {
      this->UserTransform->UnRegister(this);
      this->UserTransform = nullptr;
    }
  }
  else
  {
    if (this->UserTransform == nullptr)
    {
      this->UserTransform =
        static_cast<vtkHomogeneousTransform*>(source->UserTransform->MakeTransform());
    }
    this->UserTransform->DeepCopy(source->UserTransform);
  }

  if (source->UserViewTransform == nullptr)
  {
    if (this->UserViewTransform != nullptr)
    {
      this->UserViewTransform->UnRegister(this);
      this->UserViewTransform = nullptr;
    }
  }
  else
  {
    if (this->UserViewTransform == nullptr)
    {
      this->UserViewTransform =
        static_cast<vtkHomogeneousTransform*>(source->UserViewTransform->MakeTransform());
    }
    this->UserViewTransform->DeepCopy(source->UserViewTransform);
  }

  if (source->ExplicitProjectionTransformMatrix == nullptr)
  {
    if (this->ExplicitProjectionTransformMatrix != nullptr)
    {
      this->ExplicitProjectionTransformMatrix->UnRegister(this);
      this->ExplicitProjectionTransformMatrix = nullptr;
    }
  }
  else
  {
    if (this->ExplicitProjectionTransformMatrix == nullptr)
    {
      this->ExplicitProjectionTransformMatrix =
        source->ExplicitProjectionTransformMatrix->NewInstance();