If the model data has any unnecessary region (e.g., a region that does not belong to the cylinder or a region with irregularities), masking that region enables stable measurement. 若要在測量區域中創建遮罩,請按一下[編輯]按鍵。 即使已編輯遮罩,取消勾選[啟用]時,遮罩會被忽略。