baseline
a horizontal line in the immediate foreground formed by the intersection of the ground plane and the picture plane.
cross-hatching
the use of overlapping parallel lines to convey darkness or lightness
Chiaroscuro
The treatment of light and shade in a work of art, especially to give an illusion of depth.
invented texture
a form of visual texture that has been created without reference to perceptual reality
Foreshortening
The use of perspective to represent in art the apparent visual contraction of an object that extends back in space at an angle to the perpendicular plane of sight.
perspective
one way of looking at things
positive shape
a shape defined by its surrounding empty space
simulated texture
a convincing copy or translation of an object's texture in any medium
picture plane
The two-dimensional surface on which the artist works
gestural approach
A quick, all-encompassing statement of forms, the hand duplicates the movement of the eyes, quickly defining the subject's general characteristics (movement, weight, shape, tension, scale, and proportion)
frottage
A textural transfer technique; the process of making rubbings with graphite or crayon on paper laid over a textured surface
actual texture
a surface that can be experienced through the sense of touch
organizational line
the line that provides the structure and basic organization for a drawing
formal elements
line, texture, and color
asymmetrical
no symmetry
elipse
on oval shaped path
highlight, light, shadow, core of shadow, reflective light, cast shadow
six categories of light
implied line
a line not actually drawn but suggested by elements in the work
vanishing point
a point in space, usually located on the horizon, where parallel edges of an object appear to converge.
sighting
The visual measurements of objects and spaces between objects.