Question

What is projection and its type in computer graphics?

Answer 1

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Projection is defined as mapping of an object point P(X ,Y, Z ) into its imageP'(X' ,Y', Z' ) on the viewing surface called view plane or projection plane . ... Projection can be of two types parallel projection and perspective projection.

methods of projection are commonly used, these are:

1. Isometric projection.
2. Oblique projection.
3. Perspective projection.
4. Orthographic projection.

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Answer 2

The method of projection in graphics is a type of protocol used for technical drawing and it has two categories- parallel and perspective.

Explanation:

• The protocol of numerical calculation through which presentation of an object or image of two and three-dimension on a surface of planar is referred to as projection in graphics.
• This includes two chief categories like- parallel and perspective and both of them have their protocols.
• Parallel projection is the process in which the sight lines of the object to the plane remain parallel. In a perspective projection, the 3D image is projected on a plane of the picture.

Learn more about projection

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