19 3D graphics

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Cartesian Coordinate System

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is a coordinate system that specifies each point uniquely in a plane by a set of numerical coordinates, which are the signed distances to the point from two fixed perpendicular oriented lines, measured in the same unit of length.

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axis (plural axes)

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Each reference line

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ONE DIMENSION

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—that is, for a straight line—involves choosing a point O of the line (the origin), a unit of length, and an orientation for the line

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TWO DIMENSIONS

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(also called a rectangular coordinate system or an orthogonal coordinate system) is defined by an ordered pair of perpendicular lines (axes), a single unit of length for both axes, and an orientation for each axis.

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THREE DIMENSIONS

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consists of an ordered triplet of lines (the axes) that go through a common point (the origin) and are pair-wise perpendicular; an orientation for each axis; and a single unit of length for all three axes.

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three parameter values are required

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to determine the position of an element (i.e., point).

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3D computer graphics

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are graphics that use a three dimensional representation of geometric data

that is stored in the computer for the purposes of performing calculations and rendering 2D images. Such images may be stored for viewing later or displayed in real-time.

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one of the fathers of computer animation.

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John Whitney, Sr

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term computer graphics

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William Fetter

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the creator of Interactive Computer Graphics

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Ivan Sutherland