# What is 2D scaling in computer graphics?

## What is 2D scaling in computer graphics?

In computer graphics, scaling is a process of modifying or altering the size of objects. Scaling may be used to increase or reduce the size of object. Scaling subjects the coordinate points of the original object to change. If scaling factor < 1, then the object size is reduced.

### What is scaling in 2D transformation?

A scaling transformation alters size of an object. In the scaling process, we either compress or expand the dimension of the object. Scaling operation can be achieved by multiplying each vertex coordinate (x, y) of the polygon by scaling factor sx and sy to produce the transformed coordinates as (x’, y’).

#### What is scaling in computer graphic?

It is used to alter or change the size of objects. The change is done using scaling factors. If scaling factors are less than one, then the size of the object will be reduced. If scaling factors are higher than one, then the size of the object will be enlarged. If Sxand Syare equal it is also called as Uniform Scaling.

What is the scaling transformation?

In Euclidean geometry, uniform scaling (or isotropic scaling) is a linear transformation that enlarges (increases) or shrinks (diminishes) objects by a scale factor that is the same in all directions. The result of uniform scaling is similar (in the geometric sense) to the original.

How do you do 2D scaling transformation?

Scaling. To change the size of an object, scaling transformation is used. In the scaling process, you either expand or compress the dimensions of the object. Scaling can be achieved by multiplying the original coordinates of the object with the scaling factor to get the desired result.

## How many types of computer graphics are there?

There are two types of computer graphics: raster graphics, where each pixel is separately defined (as in a digital photograph), and vector graphics, where mathematical formulas are used to draw lines and shapes, which are then interpreted at the viewer’s end to produce the graphic.

### What is the difference between 2D and 3D transformation?

2D is “flat”, using the horizontal and vertical (X and Y) dimensions, the image has only two dimensions and if turned to the side becomes a line. 3D adds the depth (Z) dimension. This third dimension allows for rotation and visualization from multiple perspectives.

#### What is scaling transformation explain with example?

To change the size of an object, scaling transformation is used. In the scaling process, you either expand or compress the dimensions of the object. Scaling can be achieved by multiplying the original coordinates of the object with the scaling factor to get the desired result.

What is the difference between uniform scaling and differential scaling?

Uniform scaling takes place when both these factors are allocated with the same value. Differential scaling takes place when separate values are assigned to the scaling factors, sx and sy. It is more popular and used in most of the designing applications.

What is scaling and rotation?

You reposition the center of your drawing surface—the 0,0 point, or origin—by calling the translate(x,y) method. The origin of the canvas’s coordinate system is moved to the point x,y . You spin the drawing surface around the origin by calling the rotate(angle) method.

## When do you use scaling in computer graphics?

In this article, we will discuss about 2D Scaling in Computer Graphics. In computer graphics, scaling is a process of modifying or altering the size of objects. Scaling may be used to increase or reduce the size of object. Scaling subjects the coordinate points of the original object to change.

### How are 2D transformations used in computer graphics?

2D Transformations take place in a two dimensional plane. In this article, we will discuss about 2D Scaling in Computer Graphics. In computer graphics, scaling is a process of modifying or altering the size of objects. Scaling may be used to increase or reduce the size of object.

#### How does scaling change the size of an object?

A scaling transformation alters size of an object. In the scaling process, we either compress or expand the dimension of the object. Scaling operation can be achieved by multiplying each vertex coordinate (x, y) of the polygon by scaling factor s x and s y to produce the transformed coordinates as (x’, y’).

How does the scaling process work in reflection?

Where S is the scaling matrix. The scaling process is shown in the following figure. If we provide values less than 1 to the scaling factor S, then we can reduce the size of the object. If we provide values greater than 1, then we can increase the size of the object. Reflection is the mirror image of original object.

30/01/2021