3d transformations.ppt (2)

7/31/2019 3d Transformations.ppt (2)

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3DTRANSFORMATIONS

By,

S.Tejaswini

160609737047


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ABSTRACT

The 3D object is evolved from a 2D object to

increase the visualizing effects .

Mathematical operations performed on 3D

objects are known as 3D transformations.

The basic idea behind developing a 3D object

is to enhance the quality of a picture , by

adding the depth of the object , which was

lacking in case of 2D transformations


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ABSTRACT

To represent a 3D object mathematically, itneeds to be defined in terms of 3dimensionalvertices.

3-dimensional vertices consist of 3 valuesrepresenting the point's position with respectto three axes (x, y, z).

The z axes included to represent the depth of

the object On a computer, this data is stored in a 4x1

matrix because 3D transformations requiretransformation matrices that are 4x4.


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ABSTRACT

Since we only ever have 3 values, the fourth

value is always 1.

For the purpose of viewing 3D representation

it should be converted into a 2d

representation.

There are four methods of projecting 3D

image on to a 2D plane. They are

Orthognal projection


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ABSTRACT

Oblique projection

Isometric projection

Perspective projection There are two types of 3D reference system

according to the orientation for the coordinate

axes:


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ABSTRACT

Right hand system

Left hand system

3D transformations are :

1.Translations

2.Rotation3.scaling


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INTRODUCTION

In this project 3D transformations that istranslation, scaling, rotation can be performedon the given object.

Translation :In this an object is displaced agiven distance and direction from its originalposition.

Rotation: In 3D rotation has to be carried outabout any axis or any arbitrary line i.erotation about x-axis , y-axis and z-axis.


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INTRODUCTION

Scaling: scaling is the process of expandingand compressing the dimensions of an object.Scaling constants Sx,Sy and Sz are used to

describe changes in length with respect toeach direction.

In this project an object is provided on whichthe transformations will be performed.

The user can select the type of thetransformation that he want to perform.


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SYSTEM REQUIREMENTS

SOFTWARE REQUIREMENTS:

jdk1.6

HARDWARE REQUIREMENTS:

Operating system-windows xp

Processor-Pentium dual coreRam-1gb


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SOFTWARE REQUIREMENTS

The project requires an object on which the

transformation should be performed

The user should select the type of the

transformation that he/she wants to perform

by clicking the buttons

The transformed object is displayed after

selecting the type of the transformation


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E-R DIAGRAM

TRANSFORMATION

TRANSLATION

ROTATION

SCALING

X-AXIS

Y-axis

Z-axis

X-axis

X-axis

Z-axis

Y-axis

Y-axis

Z-axis


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USECASE DIAGRAM

Translation

scaling

rotation

useradministrator


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CLASS DIAGRAM

user

Selecting

transformation()

administrator

X-axis :intY-axis:int

Z-axis:int

Angle:degree

Translation()

Rotation()Scaling()

Collecting

transformation

1 1


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OUTPUT SCREENS


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translate


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Rotation about x-axis


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Roation about y-axis


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Rotation about z-axis


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scaling


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CONCLUSION

I conclude that in this project, I have perform

the basic 3D transformations of computer

graphics on an object with user interaction

.The transformations that, I have implement inthis project are translation, scaling, rotation

about x-axis y-axis and z-axis .


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FUTURE SCOPE

This can be further developed by combining

these transformations to obtain more complex

transformations.

The project can be developed to take values of

x-axis, y-axis, and z-axis for performing

transformations from the user. And can add

color to the object.


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REFERENCES

1. www.1000projects.com

2. www.google.com


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THANK YOU

3d transformations.ppt (2)

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