What is the concept of mouse resolution?

DPI refers to the positioning accuracy of the mouse, the unit is dpi or cpi, and refers to the maximum amount of information that can be accurately positioned per inch of mouse movement.

DPI is an abbreviation for dots per inch, which means the number of pixels per inch. CPI is an abbreviation for Count Per Inch, which means the sampling rate per inch. DPI and CPI can both be used to represent the resolution of a mouse, but DPI is a static indicator and is more appropriate for a printer or scanner.

Since mouse movement is a dynamic process, it is more appropriate to use CPI to represent the resolution of the mouse.

When we move the mouse one inch to the left, a 400cpi mouse sends a "left" signal to the computer 400 times, while an 800cpi mouse sends 800 times. Let's say if we move the mouse 1 800 inches, then the 800 cpi mouse will send a movement signal to the computer, but the 400 cpi mouse will not respond, and we have to move another 1 800 inches for it to transmit the movement signal.

You can install a Logitech public mouse driver, which is suitable for most miscellaneous mice, and you can obviously feel that the mouse is a lot more stable after installation, and it is no longer a floating feeling!

To put it simply, you move the mouse around the table a unit distance, and then reflect the distance on the computer screen...The larger the resolution, the more you move a little bit on the screen can also be represented! My own understanding confused me...

Isn't it the sensitivity of the mouse!!

It is the sensitivity of the mouse, that is to say, if the resolution is low, you have to turn the mouse many times to complete a turning action when playing CS.

The speed of the reaction and the degree of sluggishness.

The converter for resolution and dpi is calculated as follows:For example, a machine, the screen is 4 inches, the resolution is 480x800, because I don't know the side length, it must not be calculated separately, 4 is the diagonal length, then directly use the Pythagorean theorem to calculate the diagonal pixels, divide by 4, and calculate it is about dpi = 233 pixels inches.

Resolution refers to the number of pixels that an image or display has in terms of length and width. For example, the resolution is 1920x1080, which means that this is composed of 1920 pixels in landscape and 1080 pixels in portrait, which contains a total of 1920x1080 pixels.

Definitions:

When we need the mouse to move a fixed distance on the screen, the high dpi mouse will move a shorter physical distance than the low dpi mouse. A mouse with a high dpi often needs to move a small distance to move the cursor from one edge of the screen to the other. A mouse with a low DPI often needs to move several times more than a mouse with a high DPI to accomplish this.

The specific method to check the dpi value of the mouse is as follows:

1.First of all, some mice have a key for DPI setting (direct physical setting). The exact number of gears depends on the maker of the mouse. You can change the DPI by pressing the gear switch.

2.High-end mice have professional drivers.

Low-end mice can't use these drivers) install the free driver software, select the DPI setting bar in the interface, and you can see the current DPI number hand slip value.

The resolution of the mouse, which is the most frequent keyword, is one of the main bases for us to buy mice. The resolution of a mouse is usually measured in dpi or cpi, and dpi is an abbreviation for dots per inch, which means the number of pixels per inch. CPI is an abbreviation for Count Per Inch, which means the sampling rate per inch.

Basically, the two values are very close, and the DPI has a higher resolution than the CPI at higher values, and the DPI is relatively more referential. (1 inch = cm).

Friends who are familiar with Windows know that the system provides the mouse pointer movement speed adjustment function, which can increase or decrease the pointer movement speed to a certain extent and extent, so that the low-resolution mouse can also achieve high-resolution functions. But in reality, the system doesn't really change the resolution of the mouse, but rather increases the speed of the pointer movement while reducing the accuracy of the pointer. For example, when the system makes the pointer skip one point in every two adjacent pixels, the pointer moves twice as fast, but the mouse is only half as accurate, which shows that this does not really improve the resolution of the mouse, but only achieves the final effect of high mouse resolution to a certain extent, and negatively affects the user's positioning with the mouse.

What is the right DPI resolution?

Seeing this, many friends may have such questions, that is, what resolution mouse is needed for large-size liquid crystals with different resolutions?

The figure below is a schematic diagram of the resolution of 15 inches, 17 inches, 19 inches, 22 inches, and inches.

As you can see from the figure above, if we use a resolution of 400dpi, at a resolution of 1024x768 (the resolution is the best resolution of 17-inch CRT, and also the resolution of 15-inch LCD), move from the leftmost end of the screen to the far right, we only need 1024 400 = inches = centimeters, and 800dpi only needs centimeters, which is still acceptable for our daily operations. The same can be said:

Here's a look at what we usually look like with a mouse:

Assuming that the mouse's positioning engine is in the middle of the mouse, then, after measurement, we find that the maximum distance of the mouse engine is about 11 centimeters when the mouse is swung by the wrist. However, except for intense gaming, we rarely swing the mouse so much in daily operation, because it is easy to cause wrist fatigue. Therefore, the swing range of the more comfortable mouse operation is the small arc range in the middle of the figure above, and the author's test result is about 3 cm, which is slightly longer than one inch.

The resolution of the mouse refers to the sensitivity of the mouse.

Nowadays, the commonly used photoelectric mouse has the concept of resolution.

Resolution refers to the speed of light reaction of the photoelectric mouse, to put it bluntly, it is the reaction of the light rays at the bottom of the photoelectric mouse to the external light and the degree of concave and convex.

The higher the resolution, the more sensitive the mouse.

Nowadays, game masters, especially CS masters or professional 3D makers, will use this highly sensitive mouse.

Go to Zhongguancun and check the parameters of the mouse you want to buy.

The only quantitative indicator of the mouse is the degree of interpretation, also known as resolution, which is an important concept related to images, and it is a technical parameter to measure the expressiveness of image details. However, there are many types of interpretations, and their meanings vary. The degree of interpretation is defined as the number of points that can be generated per inch, i.e., dpi (dots).

perinch). The degree of interpretation should be determined from three aspects: the optical part, the hardware part and the software part.

There is no way to adjust the DPI of the mouse yourself, it is the mechanical properties of the mouse itself.

Test method: 1. Draw a 2cm long straight line on a piece of white paper, don't think that the distance of 2cm is very short, the distance of this 2cm on the screen is almost 20cm with the mouse! (For ease of measurement, the display uses 800x600x16bit resolution.) ）

2. Open Photoshop and create a new blank file with a size of 500x1200 pixels.

4. Finally, use a photoshop ruler to measure the distance of the mouse pointer on the screen.

5. The greater the interpretation of the mouse, the greater the distance of the corresponding pointer on the screen.

Mouse resolution dot

perinch, dots per inch.

The change is how many pieces of data are collected when the mouse moves an inch. Of course, the higher the resolution, the better, and the more accurate the mobile positioning. If the resolution is too high, your computer may not be able to handle it.

The higher resolution mouse positioning is more accurate, and it is better when playing some CS games. It is also more comfortable when drawing.