👉 Orthodiagraphy is a type of art that involves drawing, painting or sculpting with only one line. It can be used to represent a single object or an abstract concept. The artist uses a series of lines and shapes to create the image they want to depict. This technique allows artists to create complex designs in a shorter amount of time than traditional techniques like pen and ink or crayon. The term "orthodiagraphy" is often used to describe this type of art, as it