It is possible to mark out two main differences between vector and raster graphics. Considering possibilities of modern computers, the most perspective is work with vector graphics as the speed of information processing and memory size of the computer increased.
The modern person during the work with the computer uses two types of graphics – vector and raster. Since there were two types of representation of graphic objects, there were disputes on what of ways is better. Some incline that it is the most preferable to work with raster objects, others argue with them, adducing the arguments in favor of vector graphics. As in the first, and second case there are pluses and minuses. It is expedient to apply one type of graphics to the image of some objects, in other case – the second.
Vector graphics
So, by means of vector graphics it is possible to describe images with application of mathematical formulas. The most important advantage of vector graphics – if to change image scale, then it will have same qualities which were put originally. That is, if to umenshenat or increase a figure, the quality of the image at the same time does not change at all.
However at storage in long-term memory of the computer of similar figures certain shortcomings can come to light. For example, if there is a need of creation of a difficult figure, file sizes will impress. If at the computer the small memory, it can become a problem. On the other hand, modern personal computers possess in the large volume of both constant, and random access memory that allows to work with the "heaviest" files very quickly. Anyway modern programmers and designers prefer to apply vector graphics when the image does not bear in itself a large amount of half tones, shades and so on. For example, production of logos, execution of the text and other.
Raster graphics
This type of graphics represents a rectangular matrix which consists of a large number of the small indivisible points called pixels. Any pixel can be painted in any color. For example, at the monitor with the resolution of 1024Х768 the matrix which contains 786432 pixels turns out. At each pixel the purpose. At pixels very small size. If the monitor has good resolution, the person just does not perceive the image as a set of pixels. When the raster image is enlarged, it as if stretches. In that case the person can catch pixels which look as small small squares. As a result the image kind of loses symmetry and harmony. But raster images take not enough place in memory of the computer that in certain cases becomes a decisive factor.
Summary
It is possible to mark out two main differences between vector and raster graphics. First, if to increase or reduce the vector image, it will not lose in quality. If to do the same with the image raster, at increase it "is washed away". Secondly, files with vector images have big capacity in comparison with files with raster images.