Vector diagram refers to a series of points connected by lines. In computer graphics, images are represented by geometric primitives based on mathematical equations, such as points, lines or polygons. The vector can be a point or a line, and the vector diagram can only be generated by software, so the internal space occupied by the file is small, because this kind of image file contains independent separated images, which can be freely combined without restriction.

Bitmaps consist of individual points of picture elements. These dots can be arranged and dyed into different patterns. When you enlarge the bitmap, you can see that countless independent squares make up the whole image. The effect of enlarging the bitmap size is to add one pixel, which makes the lines and shapes look uneven. The characteristic of bitmap is that it can show the change of color and the subtle transition of color, resulting in realistic effects.

Extended data:

When processing bitmaps, the quality of the output image depends on the resolution set at the beginning of the processing. When manipulating bitmaps, the resolution will affect the quality of the final output and the file size. When dealing with bitmaps, the resolution selected for images is usually accompanied by files throughout the process.

Whether you print a bitmap file on a 300dpi printer or a 2570dpi imagesetter, the file is always printed at the resolution set when the image is created, unless the resolution of the printer is lower than that of the image. If you want the final output to look the same as that displayed on the screen, you need to know the relationship between the resolution of the image and the resolution of different devices before you start working.

Baidu Encyclopedia-Vector Diagram

Baidu Encyclopedia-Bitmap