The ruler and guidelines are very effective and useful features of various design application for graphics basically. The ruler and guidelines features of a design application/software helps the designer in getting accurate measurement of what he or she is designing.
I’m going to point out just one application in this post and explain how you can put the ruler and guidelines features of the application to best use. And the software we will be using is CorelDraw
The values are usually determined by the units you measure in.