WikiProject Mathematics  (Rated Startclass, Midimportance)  


May I please offer suggestions for the first paragraph under Protocols? This is meant to be constructive rather than just critical.
The second sentence is confusing. The concept of projecting three dimensions onto two is already available from the first sentence of the introduction. The mention of scale is confusing. Unless multiple scales are specified, the reader should assume that a single consistent scale applies for the whole construction. What is meant by "an invisible (point view) axis receding ..."? This suggests perspective although that probably was not intended. What is meant by "... shares a fullscale view ..."? Each projection can be made independent of the others.
Rewriting the paragraph should be considered.
Regards, ...PeterEasthope (talk) 15:16, 18 November 2007 (UTC)
 I agree. I added one of those templates used for that purposes. There actually a lot more things needing work than this sentence, I'm confused also by the diagrams at the end, and most of the info is given without telling the sources. Allefant (talk) 16:12, 18 November 2007 (UTC)
History ( to correct)
Since the ancient Egyptian civilization, has been shown, through the discovery of drawings that they used orthogonal projections to build tombs with elliptical roof. Between the first century BC In the first century dp Vitruvius, in his pubblication entitled "De architectura" elements used as a representation of buildings and plants prospectuses he called iconography and orthographies. In later times, the work of Jacopo Barozzi da Vignola "the five orders of architecture" which used the method of Monge. During the same period, Alberto Dürer (14711528) called some graphs proceedings concerning conical, as flat sections of quadric cone and also the study of perspective. In 1600 Girard Desargues scholars and Guarino Guarini have laid the foundations for the emergence of discipline "descriptive geometry" of this name has been christened by the French scientist Gaspard Monge (17461818). In 1700 the book was published "descriptive geometry" which posed the fundamental rules of descriptive geometry. Rules that are aimed, above all, to be on an equal footing (that plan projection), the objects in 3D. Currently includes descriptive geometry as an integral part projective geometry where the most significant studies and should be conclusive to Jean Victor Poncelet (17881867) disciple of Monge. With the projective geometry is introduced the concept of geometric improper Authority (point, and right plan), which determines a substantial difference with Euclidean geometry, although the remaining valid postulates of Euclid. —Preceding unsigned comment added by 82.59.173.91 (talk) 14:18, 14 January 2008 (UTC)