retina biometrics

simple natural ~But then things changed, and it was the Retina technology that used 4 or more physical pixels to render 1 logical pixels, so the size of the same CSS code would look the same on both retina and non-retina screens. But it's much finer on the retina screen.On the Retian screen, the DPR is no longer 1, bu

explore how to use colors effectively on the site, while also providing a number of color blending techniques that allow you to use colors to harness your web design.Color Science We can see that color is formed by interacting with three elements: the light source, the reflective properties of the object, and the way the human retina and the visual cortex of the brain interact with light waves. No matter what media we use to work-painting, printing

from the first generation to the present, a total of five dynasties, that is, IPAD1~IPAD5, and the mini IPad. And each generation of ipads has a corresponding CSS Media Queries. This code allows you to be more perfect in the code under ipads. IPad (Landscape and portrait) @media only screen and (min-device-width:768px) and (max-device-width:1024px) { IPad (Landscape) @media only Screens and ( min-device-width:768px) and ( max-device-width:1024px) and ( Orientation:landscap E) {

Recently, Apple launched a new Retina-screen MacBook Pro caused a lot of users to discuss the upgrade of the play is the 15-inch retina version of Macbookpro, its changes are also limited, but compared to 13-inch significantly more, getting started and Ding although still carrying four core Intel Core i7 processor, but the main frequency is also upgraded to 200MHz (one is 2.2GHz, one is 2.5GHz), and both of

to explore how to use colors effectively on the site, while also providing a number of color blending techniques that allow you to use colors to harness your web design. 　　 Color Science We can see that color is formed by interacting with three elements: the light source, the reflective properties of the object, and the way the human retina and the visual cortex of the brain interact with light waves. No matter what media we use to work-painting,

to color theory is designed to explore how to use colors effectively on the site, while also providing a number of color blending techniques that allow you to use colors to harness your web design.Color Science We can see that color is formed by interacting with three elements: the light source, the reflective properties of the object, and the way the human retina and the visual cortex of the brain interact with light waves. No matter what media we u

principle of Google, find some answers on the internet, the following is a simple answer. 1. DPI and PPI what the hell. The DPI (Dots per Inch) is initially used to measure the number of points that are printed without an inch, which means that your printer can hit as many points in an inch. The smaller the DPI value, the less pleasant the picture is. When the concept of the DPI is used on a computer screen, it should be called PPI (Pixels per Inch). Similarly: PPI is the number of pixel point

upgrade to the Intel fourth generation Haswell Core I series processor, in fact, compared to the most important upgrade of the old model is the significant increase in the battery life, this is the real selling point of the new MacBook Air. CNET has also tested a number of laptops that use the Haswell processor, and overall, the Haswell processor can improve laptop performance while reducing power consumption, increasing user care. After switching to the Haswell processor, Apple says the 13-in

figure below). So now we can't trust this thing completely. For more details on DPR, please read the PPK of the Great God: Devicepixelratio Original source: PPK Greater about devicepixelratio physical pixels On IOS Retina devices, Screen.width gives the width in dips. So both a retina and a Non-retina iPad report 768 in portrait mode.On the three Android device

Https://developer.apple.com/library/ios/qa/qa1686/_index.html Image Size (px) File Name Used for APP Store Ad Hoc 512x512 Itunesartwork App list in iTunes Do not include Optional but recommended 1024x1024 [emailprotected] App list in iTunes on devices with Retina display Do not include Optional but recommended

IOS6/iOS7, 3.5 inch/4.0 inch, ios6ios7 Retina (3.5/4 inch Screen) or Non-Retina judgment if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) { if ([[UIScreen mainScreen] scale] == 2.0) { if([UIScreen mainScreen].bounds.size.height == 568){ // iPhone retina-4 inch } else{ // iPhone

The Safri browser in iOS can add a webpage to the desktop and run it as a standalone app.Of course, here we don't discuss how to do a webapp, which requires HTML5 knowledge and development experience.Here we only talk about the details of WebApp after adding the desktop to the boot.Full Screen display:Color of the system top bar (black and white):The desktop icon (if not set, the icon displays the page's:However, iOS will give this icon with a high-gloss, if you want the icon not to be high-glos

) (design_w/s ); } Else {// The width-to-width ratio is smaller than the height-to-height ratio. First, determine the small size, that is, the width. Design _ H = 720; Design_w = (int) (design_h * s ); } } Else { Designing W = 1280; Design_h = (int) (design_w/s ); } // Achieve full screen display according to this size PEGLView-> setDesignResolutionSize (design_w, design_h, ResolutionPolicy: SHOW_ALL ); Refer: Starting from Cocos2d-x 2.0.4, Cocos2d-x proposed its multi-resolution support schem

, must haveipad,72x72 pixels, can not, but recommended to haveRetina IPhone and retina itouch,114x114 pixels, can not, but recommended to haveRetina ipad,144x144 pixels, can not, but recommended to haveIOS icon Size on IPhone 6 Plus is 180x180,iphone 6 is 120x120. With iphone 6 Plus, you'll need to add thisIOS splash ScreenOfficial Document: Https://developer.apple.com/library/ios/qa/qa1686/_index.htmlThe IPad splash screen does not include the status

(i) Resolution definitionresolution, which is the number of pixel points contained within a unit length, usually in pixels per inch (PPI). The units that describe the resolution are: (dpi dots per inch ), LPI (line per inch) and PPI (pixels per inch ). (ii) IOS resolutioniOS devices, there are currently 3 main types (Apple TV, etc. not discussed here), divided into two categories by resolution(1) Iphone/ipod TouchPu resolution 320 pixels x 480 pixelsNormal R