Glossary,E (Continued)ContinuedEN– A measure of type equal to one half of an EM.ENCRUSTING— Taking a video image and wrapping it around an image ofan object.ENGINEERING DRAWING— An orthographic drawing of a piece ofequipment or of its detailed parts containing information and instructionssufficient for manufacture.ENGINEER’S SCALE— A scale used whenever dimensions are in feet anddecimal parts of a foot, or when a scale ratio is a multiple of 10.ERASING SHIELD— A small, thin spring metal plate with variously sizedand shaped openings used to protect the surrounding area of a drawing whileerasing in an adjacent area.ESSENTIAL AREA— The part of a picture that contains all of the title orlettering intended for viewer consumption and often corresponding with thesafe title area.EQUALATERAL— Equal angles and equal sides.EXPLODED VIEW— A pictorial view of a device in a state of disassembly,showing the appearance and interrelationship of parts.EXPOSURE INDEX— The degree of light sensitivity of film.EXPORT— The transfer of files to another software application.EXTENSION BAR— A leg extension to a standard compass whichthe diameter of a circle that the compass is able to draw.expandsEXTENSION LINE— A line used to indicate the extent of a dimension.EYE LEVEL— Also called HORIZON LINE. The horizontal plane at theartist’s eye level to which that person relates linear perspective.Continued on next pageAI-23
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