In computer graphics, vector graphics refers to the use of polygons to display images. Vector graphics are based on vectors passing through locations known as control points or nodes. Each of these points has a specific position on the X and Y axes of the work plane and determines the direction of the path, and different attributes can be assigned to each path, including values such as line color, shape, curve, thickness, and fill. Vector graphics are also ideal for detailed illustrative work and industrial illustrations. They are also referred to as object-based graphics or object-oriented graphics.
Vector-based images do not consist of a certain number of dots, they can be scaled to a larger size and do not lose image quality. When you enlarge a raster image, it will look blocky or “pixelated. When you enlarge a vector graphic, the edges of each object within the graphic remain smooth and clean. This makes vector graphics ideal for logos that can be small enough to appear on a business card, but can also be scaled to fill a billboard. Common vector graphics software is Adobe Illustrator, Sketch Book Pro and Corel Draw.
There are several vector graphics file formats, but the most commonly used are for logo design:
- EPS (Encapsulated PostScript): Adobe’s EPS format is the most commonly used vector graphics format. It is a standard exchange format for the printing industry and a well supported export format from Vector graphics software.
- AI ( Adobe Illustrator Artwork): Abobe Illustrator’s native format is a modified version of the EPS format. The AI format is quite common, but less universal than the EPS format.