All Tutorial Text & Images - Copyright © 2011 KHI, Inc.
Aliasing (v) Condition when bitmapped or vector graphics show jagged edges under magnification.
Auxiliary View (n) An additional view, usually of a slanted surface.
Azimuth (n) The measure of how far a line is off due north.
Bevel (n) A surface slanted to another surface.
Bird's Eye (View) (n) A view of an object from above the horizon plane. An aerial view of the subject.
Cavalier Drawing (n) Oblique pictorial drawing in which receding edges are drawn to their full proportional length.
Chamfer (v) To bevel an edge.
CMYK (n) The four process colors used in four-color printed reproduction.
Color Space (n) The parts of the visible spectrum which can be reproduced in a given medium.
Continuous Tone (n) Rendering of the surface of an object with solid or gradated tone.
Cross Hatch (n) Rendering tone by placing surface lines close together for dark tones and further apart for light tones.
Cutaway (n) A drawing of an object as if part of it were cut away to show the inside.
Detail Drawing (n) A drawing of one part of a machine or structure.
Dimension Line (n) A line with arrowheads at either end to show the distance between two points.
Dithering (v) Simulating gray tones by altering the size, arrangement or shape of background dots.
DPI (Dots Per Inch) (v) Measuring the number of dots a printer can print per inch both horizontally and vertically.
Elevation (n) A drawing of a facade of a structure.
Ellipse (n) A non-normal view of a circle.
EPS (n) A vector based, computer graphics file format developed by Adobe Systems.
Exploded View (n) Drawing showing how an object looks when disassembled and spread out, showing how parts relate to each other.
FPO (v) (For Position Only), a low resolution image inserted into a layout to be replaced by a full resolution image before printing.
Ghosting (Ghosted) (n) A Ghosted illustration reveals the internal components by fading out the exterior skin of the object.
Gradation (n) In illustrations, the range of tones from the brightest highlights to the deepest shadows.
Greek (v) Nonsense words and letterforms used to approximate the flow of written language.
Hair Line (n) A .25 point line.
Halftone (n) A reproduction of a continuous tone image.
High 3/4 (View) (n) A pictorial drawing that shows the height, width, and depth of an object from above the horizon plane.
Isometric View (n) A kind of pictorial drawing based on height, width, and depth axes in equal 120 degree angles with each other.
Key Line (n) A thin line that is placed around a graphic image.
Line Art (n) A pictorial drawing or diagram with no continuous tone. Line only.
Nadir (n) The lowest point below the observer at which receding axes converge.
Oblique Drawing (n) A kind of a drawing that shows one face of the object in true shape, but the other faces on a distorted angle.
Orthogonal View (n) Viewing angle with no perspective - scale of the object doesn't decrease as distance from viewer increases.
Orthographic Projection (n) A system of showing an object in several views.
Overlay (n) A translucent sheet placed over a drawing.
Perspective Drawing (n) A kind of pictoral drawing that shows objects as they look to the eye.
Phantom View (n) A Phantom View illustration reveals internal components by fading the exterior skin of the object (see Ghosting).
Photo Illustration (n) An illustration, primarily consisting of a photograph or composite image containing a photograph.
Pictoral Drawing (n) A drawing that looks like a picture.
Pictoral Space (n) Illusionary space which appears to recede backward into depth from the picture plane.
Picture Plane (n) Two-dimensional picture surface.
Plan View (n) A drawing of a structure from directly overhead.
Point (n) Unit of measurement, approximately 1/72 inch. There are 12 points in a pica.
Registration (v) The process of aligning different elements or layers in an illustration.
Rendering (n) Surface shading used in a drawing.
Scaling (v) Determining the proper size of an image to be printed or reproduced.
Schematic (n) A diagram using symbols, icons, and connecting lines.
Section Lines (n) In a section view, thin, evenly spaced lines that indicate the cut surface.
Section View (n) A drawing of an object as if part of it were cut away to show the inside. Usually shown in an elevation view.
Stipple (n) Rendering tone by placing small dots close together for dark tones and further apart for light tones.
Technical Illustration (v) A pictorial drawing made to simplify and interpret technical information.
Three Quarter (3/4) View (v) A pictorial drawing that shows the height, width, and depth of an object.
Tint (n) Various even tones of a solid color.
Vanishing Point (n) In perspective drawing, the point at which receding axes converge.
Vector (n) Images defined by sets of straight lines, defined by the locations of the end points.
Vignette (n) An illustration in which the subject matter fades gradually away until it blends into the unprinted paper.
Working Drawing (n) A drawing that contains all of the information needed to make an object.
Worm's Eye (View) (n) A view of an object from below the horizon plane. An underground view of the subject.
Zenith (n) The highest point above the observer at which receding axes converge.
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