It is a form of parallel projection, where the view direction is orthogonal to the projection plane. It is further divided into multiview orthographic projections and axonometric projections.rthographic projection corresponds to a perspective projection with a hypothetical viewpoint; e.g., one where the camera lies at an infinite distance away from the object and has an infinite focal length, or  zoom .
Summary of the 2017 Postage Rate Increase: First Class Mail Letters (1 oz.) rates will increase from $0.47 to $0.49 when purchased at the Post Office. Each additional ounce will cost $0.21. The discounted âMetered Mailâ category for First Class Mail Letters (1 oz.), which includes online postage providers and postage meters, will decrease from $0.465 to $0.46.
The value of a Forever stamp is always set as the first-class mail rate. When Forever stamps were introduced in 2007, their value was 41 cents. On May 12, 2008, the cost of a first-class stamp increased to 42 cents, and on May 11, 2009, the cost of a first-class stamp increased to 44 cents. The value of a Forever stamp increased accordingly.