Disadvantages: (1) It is difficult to redraw the image; (2) The fidelity is low, and it takes a lot of skills to draw images with high naturalness.
Vector diagram uses straight lines and curves to describe graphics. The elements of these graphs are points, lines, rectangles, polygons, circles and arcs. , are calculated by mathematical formulas. For example, the vector diagram of flowers is actually the outline of the outer frame formed by line segments. The color of the outer frame and the color surrounded by the outer frame determine the color displayed by the flowers. Because vector graphics can be calculated by formulas, the volume of vector graphics files is generally small. The biggest advantage of vector graphics is that it will not be distorted regardless of enlargement, reduction and rotation.
Vector images, also known as object-oriented images or drawing images, are mathematically defined as a series of points connected by lines. The graphic elements in a vector file are called objects. Each object is an independent entity with properties such as color, shape, outline, size and screen position. Because each object is an independent entity, it can move and change its properties many times without affecting other objects in the legend, while maintaining its original clarity and curvature. These characteristics make vector-based programs especially suitable for legend and three-dimensional modeling, because they usually require the ability to create and manipulate a single object. Vector-based drawing is independent of resolution. This means that they can be displayed on the output device at the highest resolution.
The biggest difference between vector diagram and bitmap is that it is not affected by resolution. Therefore, when printing, you can enlarge or reduce the graphics at will without affecting the clarity of the drawing.
Vector diagram: drawing a graph according to geometric characteristics. A vector can be a point or a line. Vector diagram can only be generated by software, and the file occupies less internal space, because this kind of image file contains independent and separated images, which can be recombined freely and unrestricted. Its characteristic is that the enlarged image will not be distorted, regardless of the resolution, the file occupies less space, and it is suitable for graphic design, text design, logo design, layout design and so on.