A kind of spline generated by basis functions. This relationship is classified as either absolute or relative. Relative co-ordinates reference the last point you entered. These are useful when you want to draw or place an entity at a known distance from another entity. Entities Each item you add to a drawing is called an entity.
Entities are the building blocks of a drawing.
Programs might refer to entities as objects, items or elements. Layers Layers help you place entities together in logical groups. An architectural floorplan, for example, might contain a framing layer, a plumbing layer, an electrical layer and so on. All rights reserved. Reproduction in whole or in part in any form or medium without express written permission of ZDNet is prohibited.