Who invented vector drawing?

Pixel graphics or vector graphics? Advantages and disadvantages in comparison

Unlike pixel graphics, vector graphics do not consist of individual pixels, but of so-called graphic primitives such as lines, circles or curves, which are defined by parameters such as start point, end point, radius, edge length, line width, color and fill pattern. Modern vector drawing programs also reproduce color gradients and transparency. These objects are not defined as a series of pixels, but rather logically described on the basis of their properties. For the description of a simple circle, only the position of the center point and the radius as well as the color and line thickness are required in a vector graphic in order to represent the object in any conceivable size.

This shows the great advantage of vector graphics compared to raster graphics: An image that is described independently of pixels on the basis of object properties can be scale at will without loss of qualitybecause the saved parameters are simply converted to the new size. A circle, on the other hand, which was defined in a pixel graphic by a precisely defined number of pixels, shows from a certain magnification Stair or alias effectsin which the individual pixels emerge. In contrast to pixel graphics, in which proportionally more pixels are required for large-format images, the display size of a vector graphic has no influence on the memory requirement. Instead, it results from the number of parameters saved.

Since all common display media (screen, print) only output images as raster graphics, vector graphics must be converted to raster graphics before they are displayed (rasterization). Depending on the complexity of the objects described, this step costs both time and computing power.