Using Ortho mode in LibreCAD offers several benefits, including:
In CAD software, "Ortho" (short for ) mode restricts the cursor movement so that you can only draw lines or move objects parallel to the horizontal and vertical axes. This eliminates the guesswork of trying to "eye" a straight line and ensures that your angles are exactly 90 degrees. How to Enable Ortho Mode in LibreCAD librecad ortho mode
In the mouse move event handler (while drawing): Using Ortho mode in LibreCAD offers several benefits,