價格：免費
更新日期：2020-07-30
檔案大小：4.4 MB
目前版本：2.2
版本需求：macOS 10.14 或以上版本，64 位元處理器
This application can display a ruler or a protractor on the screen.
The interval of the ruler is 1 mm, 0.1 inch, or 5 pixel.
Note: I cannot guarantee the accuracy of the scale intervals on all displays, but you can adjust it manually.
