10 recommended articles about display size

I have recently browsed a lot of website image cropping effects. Most of the methods are as shown in the picture below (borrowing a picture from Script Home). Select the appropriate position by changing the size of the cropping box. But this article introduces another cropping method. The cropping box is determined by the developer, and the image size is determined by the user. The appropriate position is selected by scaling and dragging the image, and the aspect ratio of the image is always maintained in the process. As shown in the picture above right. This approach mainly has the following advantages: the width and height of the cropping frame are consistent with the actual aspect ratio, preventing image deformation problems without limiting the display size of the image, ensuring the original proportion of the image, and the original size can be obtained through scaling for local parts. Cropping is more friendly. For example, to capture a very small part of a high-definition picture, we only need to enlarge the picture and drag it into the cropping box, while other methods require the cropping box to be adjusted very small, which is not conducive to After talking about the user operation, we should also talk about the shortcomings. The shortcoming is that the difficulty increases by an order of magnitude. . . . The main idea is to use two pictures and position them absolutely. One is placed inside the cropping frame and the other is placed outside the cropping frame and has a transparent effect. The overflow of the cropping frame is set to hidden to maintain absolute synchronization of the two pictures at all times.

1. JavaScript image cropping sample code sharing without deformation (picture)

##Introduction: Recently I have browsed the image cropping effects of many websites. Most of the methods are as shown in the picture below (borrowing a picture from Script House). By changing the size of the cropping box to choose a suitable location. But this article introduces another cropping method. The cropping box is determined by the developer, and the image size is determined by the user. The appropriate position is selected by scaling and dragging the image, and the aspect ratio of the image is always maintained in the process. As shown in the picture above right. This approach mainly has the following advantages: The width and height of the cropping frame are consistent with the actual aspect ratio, preventing image deformation problems. It does not limit the display size of the image, ensuring the original proportion of the image, and the original image can be obtained by zooming..

2. JS method to control the display size of pictures [picture proportional scaling function]

##Introduction: This article mainly introduces the method of JS to control the display size of images, that is, to realize the image scaling function, and involves JS related techniques for dynamically operating page element attributes. Friends in need can refer to it. Next

3.

PHP verification code function code (simple and practical)_PHP tutorial

Introduction: PHP verification code function code (simple and practical). Rendering: Copy the code as follows: ?php /*** vCode(m,n,x,y) m numbers display size n side width x side height y * micxp *jb51.net*/ session_start(); vCode(4, 15); //4 numbers, display

4.

php verification code only displays the canvas under linux, but does not display the verification code. The ultimate solution_PHP tutorial

Introduction: php verification code under linux only displays the canvas, does not display the verification code The ultimate solution for displaying verification codes. After passing the test, first release my code [php] ?php session_start(); /**Removing the boom is utf-8 * vCode(m,n,x,y) m numbers display size is n side width x side height y * http://blog.qita.in *

##5.

htmlStatic page image display size error_html/css_WEB-ITnose

Introduction: The display size of html static page pictures is wrong

6.

About the problem of the display size of pictures in mobile browsers

Introduction: Issues regarding the display size of images in mobile browsers

7.

Issues related to the size setting of PHPExcel exported images

Introduction: PHPExcel export picture size setting problem. When using PHPExcel to export pictures to excel, the picture size will only be displayed according to a certain ratio and cannot be displayed according to your own requirements. I don’t know how to solve it. Is there any master? Can you help me? $objDrawing = new PHPExcel_Worksheet_Drawing(); $objDrawing->setName('Photo');&

8. PHP verification code function code (simple and practical)

Introduction: PHP verification code function code (simple and practical). Rendering: Copy the code as follows: ?php /*** vCode(m,n,x,y) m numbers display size n side width x side height y * micxp *jb51.net*/ session_start(); vCode(4, 15); //4 numbers, display

9. About the problem of the display size of the picture in the mobile browser

Introduction: About the problem of the display size of the picture in the mobile browser The mobile phone resolution is: 720*1280, Then, I used screen.width to display it on the mobile browser, which was also 720. Now I added a picture with a size of 638*882. As a result, the width of the picture was not displayed in full, only part of it was displayed. Later, I added the picture Change it to 360* (height), and the result will be displayed in the browser interface in terms of width. Excuse me, how is this resolution calculated? ------Solution ideas

10. The ultimate solution for php verification code under Linux to only display the canvas and not the verification code

Introduction: The ultimate solution to the PHP verification code that only displays the canvas and does not display the verification code under Linux. After passing the test, first release my code [php] ?php session_start(); /**Removing the boom is utf-8 * vCode(m,n,x,y) m numbers display size is n side width x side height y * http://blog.qita.in *

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