Scale Ruler for Mac
Tired of converting measurements from the real 1:1 scale world to the actual size? Ondesoft Screen rulers can be used as a normal ruler in 1:1 scale mode or alternatively can be used to measure scaled drawings or maps with customized units and magnifications.
Before using the scale ruler option , it is important to know the scale of the drawing or item that is being measured. Once the scale of the drawing has been ascertained, add a new unit and fill the correct scale in the “Multiple” tab. For example, 100000 on the “Multiple” is in fact a scale that converts 1 ”new unit” on the drawing to 100000 ”new unit”.
Then measure graphics or maps like using a traditional ruler on your Mac; the only difference is that you can read the actual size immediately, no need to calculate again.