BASIC ELEMENTS OR VISUAL REPRESENTATION 
dot: it is the smallest and the most simple element in art expresion. it my have different qualities qualities such as size, shape and color
the dot three dimensional capacity:when the size, shapes and colors and changed the dot can create visual sensations of espacial deepneess and volume 
 the dot expresive capacity : the point has a ulimited capacity to represent images nad two express ideas and emotions 
optical mix: when colors are mixed whith the help of distances. paint isn´t mixed on the palette or on the painting. the optical mix was used firt by the pointillist.
line: the line it can be defined as a dot in moviment. it has a position a direction in the space and one of it principal fundition consists on making the shapes outlines.