Foreshortening refers to the visual effect or optical illusion that an object or distance is shorter than it actually is because it is angled toward the viewer. Visual effects is the term given to a sub-category of special effects in which images or frames of a movie, are created, recorded, or manipulated for film and video. ... An optical illusion is any illusion that deceives the human visual system into perceiving something that is not present or incorrectly perceiving what is present. ... Etymology: The word object comes from the latin word objectum a noun form of objectus which in turn comes from objicere, which means to throw or put something before someone. ... personal space, proxemics. ... This article is about angles in geometry. ...

Foreshortening is an important element in graphic art where visual perspective is being depicted. Graphic design is the applied art of arranging image and text to communicate a message. ... Vision can refer to: Visual perception is one of the senses. ... Perspective is the choice of a single point of view from which to sense, categorize, measure or codify experience, typically for comparing with another. ...

Donatello's St. Mark, created for the Orsanmichele between 1411 and 1413. In order to create a sculpture that looked to be in proportion when viewed from the street below, Donatello had to employ foreshortening. For this reason, the sculpture might look out of proportion if seen at eye-level. When seen from below, however, it appears to be in perfect proportion. According to Vasari, the sculpture was originally rejected when seen on the ground. Donatello promised that he could make the work please his patrons if only he were allowed to place it in the niche of the Orsanmichele, which was above ground level, and refine it further. Statue of Donatello at the Uffizi Donatello (Donato di Niccolò di Betto Bardi) (1386 - December 13, 1466) was a famous Florentine artist and sculptor of the Early Renaissance. ... The church of Orsanmichele (or Or San Michele), located on the Via Calzaiuoli in Florence, was originally built as a grain market in 1337. ... Giorgio Vasari (Arezzo, Tuscany July 3, 1511 - Florence, June 27, 1574) was an Italian painter and architect, mainly known for his famous biographies of Italian artists. ... Generally, patronage is the act of supporting or favoring some person, group, or institution. ...

According to Vasari's story, Donatello put the sculpture in place, covered it with cloth for fifteen days, and then, without working on it further, revealed it to the patrons. They were completely satisfied once they saw the sculpture in place in its niche.

For a mathematical analysis please see projections. In linear algebra, a projection is a linear transformation P such that P2 = P, i. ...