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The mathematical formulas determine where the dots that make up the image should be placed for the best results when displaying the image. A vector graphics program uses these mathematical formulas to construct the screen image, building the best quality image possible, given the screen resolution. If the number of pixels is kept constant, the size of each pixel will grow and the image becomes grainy (pixelated) when magnified, as the resolution of the eye enables it to pick out individual pixels.Vector graphics files store the lines, shapes and colors that make up an image as mathematical formulas. The smaller and closer the cells are together, the better the quality of the image, but the bigger the file needed to store the data. The picture is built up from these cells. An understanding of the advantages and limitations of each technology and the relationship between them is most likely to result in efficient and effective use of tools.Ĭomputer displays are made up from grids of small rectangular cells called pixels. There are times when both formats come together. There are instances when working with vector tools and formats is the best practice, and instances when working with raster tools and formats is the best practice.
#Bef raster graphics format unified color technologies. series
Vector graphics are stored as mathematical expressions as opposed to bit mapped graphics which are stored as a series of mapped ‘dots’, also known as pixels (Picture cells). Vector graphics formats are complementary to raster graphics, which is the representation of images as an array of pixels, as is typically used for the representation of photographic images. Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics.
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Raster images are based on pixels and thus scale with loss of clarity, while vector-based images can be scaled indefinitely without degrading quality. The lower-right image illustrates the same magnification as a bitmap image. The upper-right image illustrates magnification of 7x as a vector image. The original vector-based illustration is at the left. Example showing effect of vector graphics versus raster graphics.