D1 Lesson 3: Vector Graphics

Which of the following best describes a vector graphic?

• An image composed of pixels

• An image defined by mathematical equations

• An image with a fixed resolution

• An image that cannot be resized

Answer explanation

A vector graphic is defined by mathematical equations, allowing it to be scaled without losing quality. This contrasts with pixel-based images, which are resolution-dependent and can become pixelated when resized.

What is the primary advantage of using vector graphics over raster graphics?

• They are easier to edit

• They have smaller file sizes

• They can be resized without losing quality

• They support more colors

Answer explanation

The primary advantage of vector graphics is that they can be resized without losing quality. Unlike raster graphics, which can become pixelated when enlarged, vector graphics maintain their clarity at any size.

Which file format is commonly used for vector graphics?

• JPEG

• PNG

• SVG

• BMP

Answer explanation

SVG (Scalable Vector Graphics) is a widely used file format for vector graphics, allowing for scalable images without loss of quality. In contrast, JPEG, PNG, and BMP are raster formats that do not support vector graphics.

In vector graphics, what does the term "anchor point" refer to?

• A point that defines the start of a line

• A point that connects two lines

• A point that defines the curvature of a path

• A point that marks the end of a path

Answer explanation

In vector graphics, an anchor point is crucial as it defines the start of a line, allowing for the creation of paths. While it can also influence curvature, the primary role is to mark the beginning of a line.

How do vector graphics handle colors differently from raster graphics?

• They use color palettes

• They use color gradients

• They use mathematical formulas to define colors

• They use a fixed number of colors

Answer explanation

Vector graphics use mathematical formulas to define colors, allowing for scalability without loss of quality. In contrast, raster graphics rely on a grid of pixels, which can limit color representation and quality when resized.

Which of the following is a characteristic of vector graphics?

• They are resolution-dependent

• They are composed of paths

• They are best for photographs

• They are always black and white

Answer explanation

Vector graphics are composed of paths, which are defined by mathematical equations. This allows them to be scaled without losing quality, unlike raster graphics that are resolution-dependent and best for photographs.

What is the role of a "control handle" in vector graphics?

• It defines the start of a path

• It adjusts the thickness of a line

• It controls the direction and curvature of a path

• It changes the color of a path

Answer explanation

A control handle in vector graphics is used to control the direction and curvature of a path. It allows artists to manipulate the shape of curves, making it essential for creating smooth and precise vector designs.

Which software is commonly used for creating vector graphics?

• Adobe Photoshop

• Adobe Illustrator

• Microsoft Paint

• Corel Photo-Paint

Answer explanation

Adobe Illustrator is specifically designed for creating vector graphics, making it the correct choice. In contrast, Adobe Photoshop and Microsoft Paint focus on raster graphics, while Corel Photo-Paint is more for photo editing.

What does the term "scalable" mean in the context of vector graphics?

• The ability to change colors

• The ability to be resized without losing quality

• The ability to be printed in high resolution

• The ability to be converted to raster format

Answer explanation

In vector graphics, "scalable" refers to the ability to be resized without losing quality. Unlike raster images, vector graphics maintain their clarity and detail at any size, making them ideal for various applications.

Which of the following is NOT a typical use for vector graphics?

• Logo design

• Digital painting

• Technical illustrations

• Font creation

Answer explanation

Digital painting typically uses raster graphics for detailed textures and color blending, while vector graphics are better suited for scalable designs like logos, technical illustrations, and fonts.