The Elements of Art (Art 7) Line Name: Class: Date: A line is a point moving in space. Artist use different Type of Line to create movement and interested. vertica l horizontal diagonal wavy freeform Line Quality is the thickness or thinness of a line. Lines can be used to create shading or value Hatching Contour line: Used to create outlines or edges Cross hatching Cross contour lines: Lines that run across the surface of an object.