Home > Web Front-end > JS Tutorial > body text

How to limit the display size of images in JavaScript_javascript skills

WBOY
Release: 2016-05-16 16:10:23
Original
1380 people have browsed it

The example in this article describes how to limit the display size of images using JavaScript. Share it with everyone for your reference. The specific implementation method is as follows:

/**
 * 限制图片显示的size.
 * 
 * @param thisobj 图片组件
 * @param limitW 限制宽度大小
 * @param limitH 限制高度大小
 */
function imageResize(thisobj, limitW, limitH) {
  var newW;
  var newH;
  if (thisobj.width > limitW) {
    newW = limitW;
    newH = parseInt(thisobj.height * newW / thisobj.width);
 // 按宽度比例缩放
    if (newH > limitH) {
      newH = limitH;
      newW = parseInt(thisobj.width * newH / thisobj.height);
    }
    thisobj.width = newW;
    thisobj.height = newH;
  } else if (thisobj.height > limitH) {
    newH = limitH;
    newW = parseInt(thisobj.width * newH / thisobj.height);
    thisobj.width = newW;
    thisobj.height = newH;
  }
}
Copy after login

I hope this article will be helpful to everyone’s JavaScript programming design.

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template