is a technique for rendering depth or distance by muting the hue, tone, and distinctness of objects perceived as receding from the picture-plane. Also called atmospheric perspective.
relates to the drawing of lines to represent the three-dimensional structure and geometry of a form, proceeding generally from the whole to the constituent parts.
is an elevation drawing of a façade, surrounded by a decorative arrangement of drawings of important details and sometimes a plan or section of the facade.
is a distorted image that appears in natural form only when viewed at a special angle or reflected from a curved mirror.
is a plan showing the principal elements of a design project in the wider context of its surrounding environment.
is a paraline drawing of an axonometric projection, having all lines parallel to the three principal axes drawn to scale but diagonal and curved lines distorted.
is the orthographic projection of a three-dimensional object inclined to the picture plane in such a way that its three principal axes are foreshortened.