Mobile web development pixel and DPR, web pixel dpr* Directory [1] Definition [2] classification [3] 3 P [4] scaling [5] DPR [6] before API
Pixels are used almost every day in web development. But what are pixels? Are there any differences between pixels on the mobile end and the desktop end? Does scaling affect pixels
640*1136 pictures cannot be fully displayed on the Ipone?Iphone5 Resolution: 640*1136 (claimed--device independent pixels)Why Iphone5 is 320px*568px?Px:css pixels logical pixels, abstract units used by the browser (can be larger and smaller depending on the device)Dp,pt:device indipendent pixels device independent pixels (physical pixels fixed, not larger and smaller as logical pixels)Dpr:devicepixelratio Device pixel scaling ratioCalculation formula:
One pixel knowledge 1.1 device pixel (Devices pixel)It is a physical concept, referring to the physical pixels used in the device (physic pixel). This unit is represented by PX, which is a [relative absolute unit] ————That is, on the same device, the physical length (such as inches) represented by each of the 1 device
[1] definition [2] classification [3] scaling [4]DPR[5]API front wordsPixels are used almost every day in web development, but what exactly is a pixel, is there a difference between the pixel on the mobile and the desktop, and how does scaling affect the pixel, and what does the retina screen have to do with pixels? On
Mobile web development pixel and DPR-little match Blue ideal
* Directory [1] Definition [2] classification [3] scaling [4] DPR [5] APIPrevious
Pixels are used almost every day in web development. But what are pixels? Are there any differences between pixels on the mobile end and the desktop end? Does scaling affect pixels? What is the relationship between retina
Pixels are used almost every day in web development, but what exactly is a pixel, is there a difference between the pixel on the mobile and the desktop, and how does scaling affect the pixel, and what does the retina screen have to do with pixels? On these issues, it may not be clear. This article will introduce you to
Basic mobile phone resolution knowledge (DPI, DIP computing)
1. terms and concepts
Terms
Description
Remarks
Screen size)
It refers to the actual physical size of the mobile phone, such as the commonly used 2.8 inch, 3.2 inch, 3.5 inch, 3.7 inch
Motorola's milestone mobile phone is 3.7 inch
Aspect Ratio (width/height Ratio)
xCatalog [1] definition [2] classification [3]3p[4] scaling [5]DPR[6]API front wordsPixels are used almost every day in web development, but what exactly is a pixel, is there a difference between the pixel on the mobile and the desktop, and how does scaling affect the pixel, and what does the retina screen have to do w
Introduce PS to mm fuzzy low pixel mobile phone photos into a dream hand-painted effect, this article with Ps+sai to complete, of course, you can only use PS, see a person's preferences.
Tutorial Final effect Diagram:
This is the original image of the legend ... Well, it is the pixel is so slag, the picture is so small, so
One. Related basic knowledgeXiaomi Note Parameter view: http://www.mi.com/minote/specs/The following is an example of millet note this device.1. It is generally said that the number of inches of mobile phone refers to: the length of the screen diagonal. 1 inches 2.54 cm. The millet note is 5.7 inches and is about 14.478 cm.2. Physical pixel/device pixel/
Due to the problem of mobile phone DPR (device pixel ratio), there are often 1 pixel border problems in WebApp, the solution is as followsThe following code implements BORDER-1PX ($color) {position:relative using sylus ; :after{ Display:block; Position:absolute; left:0; bottom:0; border-top:1px solid $color; Content
One, why there is a pixel problemTo understand this problem, we must first know the DPR.The DPR (device pixel ratio) pixel equals the picture element. Device pixel ratio, which is the default scale of 100%, that is, the number of dpr= device pixels/The number of ideal viewport pixels (device-width).1. Device pixels: ph
Since the amid Lord has raised the retina screen. Can have a lot of front-end brothers of the pixel eye, obsessive-compulsive partners days can be suffering. To draw a true 1-pixel border, the front-end apes were abused by browsers.About what is the mobile side 1 pixel border problem, first on the two pictures, we will
Recently has been in the Vue Mobile project, every time at the beginning to solve the problem of BORDER:1PX, referring to Daniel's article himself summarized down as a noteReference:Zhang Xin Xu: http://www.zhangxinxu.com/wordpress/2012/08/window-devicepixelratio/Https://www.cnblogs.com/lunarorbitx/p/5287309.htmlCause:in the On the Retina screen (Retina is a pixel-compressed screen that compresses more pixe
In a mobile Web project, the following 1-pixel border is often implementedMobile Web design, the retina display under the screen will be 1px will be rendered as 2px, then the visual version of 1px lines to restore the page needs CSS defined as 0.5pxBut just as we go to use 0.5px to Boder to find the CSS border-width:0.5px does not work, that is not really support 0.5px it?Some of the problems we found when
PX:css pixels logical pixels, abstract units used by the browserDP (Android), PT (IOS):device independent pixels devices-independent pixels, logical pixelsDPR:devicepixelratio device pixel scaling ratioDPi: Ink dots that can be sprayed on the printer per inch (printing industry)PPI: The number of pixels per inch of the screen, which is the pixel density in units of inchesAt present, in the computer display
.
The application of pixel painting is also very extensive. such as our childhood playing FC home red and white machine screen, as well as today's GBA palm machine and mobile games, from Black-and-white mobile phone pictures until today Full-color handheld computer, and we face the computer is also ubiquitous in all kinds of software
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