Term
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Definition
| A two-or three-dimensional area defined by visual elements. |
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Term
| Actual three-dimensional space |
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Definition
| boundless and limitless in all directions |
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Term
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Definition
flat plane with only length and width
depth is created through illusion |
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Term
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Definition
| The tendency of animals and human to see familiar objects as having standard shape, size, color or location regardless of changes in the angle of perspective, distance or lighting. |
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Term
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Definition
| The ability of the mind to maintain constant perceptions of figures and forms despite changes in the image on the retina. |
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Term
(Communicating Depth on a 2D Plane)
Relative Size (Size Cues) |
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Definition
| The relationship of the sizes of figures or forms communicates the sense of depth |
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Term
(Communicating Depth on a 2D Plane)
Overlapping |
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Definition
| When a form partially obscures another form(s) within the visual field |
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Term
(Communicating Depth on a 2D Plane)
Vertical Position in the Plane |
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Definition
| The perception of depth is influenced by the relative location of the object to the ground plane. The further away an object is on the ground plane the higher it is in the visual field. |
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Term
(Communicating Depth on a 2D Plane)
Atmospheric (Aerial) Perspective |
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Definition
| Strong value contrast are perceived as closer distance, while lighter values are perceived as further away. |
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Term
(Communicating Depth on a 2D Plane)
Value as Depth Cue |
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Definition
| lighter values appear closer, while darker values appear further away |
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Term
(Communicating Depth on a 2D Plane)
Texture Gradients |
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Definition
| The process of a gradual change through regular steps or stages |
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Term
(Communicating Depth on a 2D Plane)
Linear Perspective |
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Definition
| A depth cue that is related to both relative size and texture gradient |
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Term
(Communicating Depth on a 2D Plane)
Change in Line Weight |
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Definition
| Heavier lines are usually perceived as closer to the plane. Thinner lines are perceived as being further away. |
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Term
(Communicating Depth on a 2D Plane)
Spacing Between Lines |
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Definition
| More condensed spacing usually is perceived as further away from the plane. |
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Term
(Communicating Depth on a 2D Plane)
Shadows |
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Definition
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Term
(Communicating Depth on a 2D Plane)
Color |
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Definition
| Warm colors tend to be seen as advancing cool colors to recede. |
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Term
(Communicating Depth on a 2D Plane)
Foreshortening |
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Definition
| The apparent diminishing size of the width or height of an object as it angles away from the observer. |
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Term
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Definition
| Where the sky meets the earth. The line on which the vanishing point is located. |
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Term
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Definition
| The point at which a set of converging lines meet on the horizon; a drawing can have many vanishing points |
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Term
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Definition
| Location of the eye of the viewer. |
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Term
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Definition
| Bird’s eye, normal eye, worm’s eye |
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Term
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Definition
| One point, two point, three point |
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Term
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Definition
| There is only one vanishing point and the face of the object is parallel to the picture plane |
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Term
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Definition
| The edge of the object is parallel to the picture plane |
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Term
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Definition
| A development of two-point perspective: the third vanishing point is located above or below the horizon, which the vertical vanish to. |
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Term
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Definition
| The method of drawing three-dimensional objects in two dimensions by means of related views called plans, elevations, and sections. |
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Term
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Definition
| A scaled drawing of the object viewed from above. |
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Term
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Definition
| A scaled drawing of the object viewed vertically with the inclusion of wall thickness. |
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Term
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Definition
| A scaled drawing of the object viewed vertically. |
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Term
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Definition
| Contains a true plan and is usually made with the aid of a 45 degree set square, although as long as the plan remains true, the angle at which it is tilted to the horizontal can be varied to produce the best effect. |
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Term
| Axonometric (Plan Oblique): |
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Definition
| Higher angle and horizontal planes receive more emphasis. |
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Term
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Definition
| The scale of three axes are the same. All three visible surfaces have equal emphasis. |
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Term
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Definition
| The scales of two of the axes are the same and have idealized angles of 7 and 42 degrees to the horizontal. |
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Term
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Definition
| The scales of all the axes are different. |
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Term
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Definition
| A vertical plane remains parallel to the drawing surface, showing itself in true size, shape and proportion. |
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Term
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Definition
| Paraline projections are always aerial view. It is particularly useful in architectural graphics because of their ease of construction and their effectiveness as a pictorial view. |
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Term
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Definition
Line
Shape
Texture
Value
Scale
Proportion
Rhythm
Time/Motion
Color
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