# Orthographic Projection of Cone

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## Presentation Description

breif description about orthographic projection,cone nd orthographic projectio of cone and frustum of a cone

## Presentation Transcript

### Orthographic Projection of Cone and Frustum of Cone :

Orthographic Projection of Cone and Frustum of Cone Indranil Saha(07) Foundation Program-II Nift, Delhi

### Orthographic projection :

Orthographic projection Orthographic projection (or orthogonal projection) is a means of representing a three-dimensional object in two dimensions. It is a form of parallel projection, where the view direction is orthogonal to the projection plane.

### Frustum :

Frustum A frustum (plural: frusta or frustums) is the portion of a solid (normally a cone or pyramid) which lies between two parallel planes cutting it. The term is commonly used in computer graphics to describe the three-dimensional region which is visible on the screen (which is formed by a clipped pyramid); in particular, frustum culling is a method of hidden surface determination.

### Multiview orthographic projections :

Multiview orthographic projections With multiview orthographic projections, up to six pictures of an object are produced, with each projection plane parallel to one of the coordinate axis of the object. The views are positioned relative to each other according to either of two schemes: first-angle or third-angle projection. In each, the appearances of views may be thought of as being projected onto planes that form a 6-sided box around the object. Although 6 different sides can be drawn 3 sides of a drawing give enough information to make a 3D object. These views are known as front view, top view and right side view.

### Defining the Six Principal Views or Orthographic Views :

Defining the Six Principal Views or Orthographic Views

### Slide 6:

THE GLASS BOX CONCEPT Bottom view Left side view Rear view

### First and Third Angle Projections :

First and Third Angle Projections First Angle Third Angle

### Cone :

Cone A cone is a three-dimensional geometric shape that tapers smoothly from a flat, usually circular base to a point called the apex or vertex.

### Orthographic projection of Cone :

Orthographic projection of Cone Top View Front View Side View

### Frustum of a Cone :

Frustum of a Cone cone Truncated part is removed Frustum

### Orthographic projection of Frustum of a Cone :

Orthographic projection of Frustum of a Cone Top View Front View Side View

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