What is the difference between a vector map and a bitmap?

1, vector map vector map is also called Vector map, is a series of computer instructions to describe and record a picture, a picture can be solved by a series of points, lines, faces wait until the composition of the child graph, which is recorded in the object geometry, line thickness and color. The generated vector map file storage is very small, especially for text design, pattern design, layout design, logo design, CAD (CAD), arts and crafts design, illustrations and so on.

A vector chart can only represent a graph of regular lines, such as engineering drawings, three-dimensional modelling or WordArt, etc. for images (landscapes, characters, landscapes) composed of irregular pixel points, it is difficult to express them mathematically, and it is not appropriate to use vector graph format. Second, vector maps are not easy to produce colorful images, the image is not very real, And it's not easy to exchange data between different software.

In addition, vector images cannot be obtained by scanning, and they depend primarily on the design software generation. Vector drawing programs define (like mathematical calculations) angles, arcs, areas, and spatial orientations relative to the paper, including wireframe that give the fill and wheel characteristics. The common vector graph processing software has Coreidraw, AutoCAD, illustrator and Freehand.

2, bitmap bitmap is also called dot-matrix or pixel map, computer screen diagram you are by the screen of light points (that is, pixels), each point with binary data to describe its color and brightness information, these points are discrete, similar to the lattice. The color combination of multiple pixels forms an image, called a bitmap.

When the bitmap is magnified to a certain extent, it is made up of small squares, which are called pixel points, and one pixel is the smallest image element in the image. When working with a bitmap image, the pixel is edited rather than the object or shape, and its size and quality depend on the number of pixels in the image, the more pixels in each square inch, the clearer the image, and the smoother the blending between the colors. The computer storage bit image is actually storing the position of each pixel of the image and the color data wait for information, so the clearer the image, the more pixels, the larger the corresponding storage capacity.

Bitmap images are more likely to mimic the real effects of photos than vector images. The main advantage of bitmap image is strong performance, exquisite, many levels, more details, can be very easy to simulate the same as the real effect of photos. Because the pixels in the image are edited, the sharpness and smoothness of the image are affected when it is stretched, enlarged, or shrunk to wait for processing. Bitmap images can be obtained by digital cameras, scans, or PHOTOCD, and can be generated by other design software

Bitmap images, also called dot-matrix images or drawn images, are made up of individual dots called pixels. When you enlarge a bitmap, you can see the individual picture elements that make up the image. Enlarging a bitmap size increases a single pixel, making the lines and shapes appear uneven. However, if viewed from a slightly farther point, the color and shape of the bitmap image is continuous, which is the character of the bitmap. Vector images, also known as drawing images, are mathematically defined as a series of points and points of the relationship between the vector map can be arbitrarily enlarged or reduced without image distortion phenomenon

A lot of people will say, small make up you said so much, I do not understand Ah, the following straightforward when: vector map that is to enlarge how many times will not appear mosaic. Always a clear bitmap that is, the magnification than the original size of the multiple will appear mosaic, not clear, look at the blurred. That's the only difference.

What software is used to open it? Vector Graphics: CDR, AI, EPS and other formats, can be infinitely enlarged; can be made of any size. Only the relevant plane software is installed to preview and open

Bitmaps: generally BMP, JPG format, is a pixel map, without the software can be directly preview open. Can not be enlarged, online download the picture can not be used for printing, inkjet and other production (professional material network except)