public function Stroke() { if (JpGraphError::GetImageFlag()) { $errobj = new JpGraphErrObjectImg(); $errobj->SetTitle(JpGraphError::GetTitle()); } else { $errobj = new JpGraphErrObject(); $errobj->SetTitle(JpGraphError::GetTitle()); $errobj->SetStrokeDest(JpGraphError::GetLogFile()); } $errobj->Raise($this->getMessage()); }