Sciography
Encyclopedia
Sciography is a branch of science of the perspective
Perspective
- Literally, in visual topics :* Perspective , the way in which objects appear to the eye.* Perspective , representing the effects of visual perspective in graphic arts- Metaphorically, in relation to cognitive topics :...

 dealing with the projection of shadows, or delineation of an object in perspective with its gradations of light and shade
Light & Shade
Light + Shade is a two-disc album by English musician Mike Oldfield. It is the first album to be released by Oldfield following his signing with Mercury Records. The album was released on 26 September 2005...

. One of the major professional fields that use this technique is the architectural field. In architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

it is defined as a study of shades and shadows cast by simple architectural forms on plain surfaces.

In general sciography the light source is imagined as the sun inclined at 45 degrees to both vertical plane and horizontal plane coming from left hand side. The resultant shadow is then drawn.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK