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Sunday, September 26, 2021
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Vue3VueJs

Vue 3 Image Magnifier Working Functionality

Vue 3 Image Magnifier Working Functionality

Hello my friends, welcome back to my blog. Today in this blog post, I am going to show you, Vue 3 Image Magnifier Working Functionality.

Working Demo

Vue 3 came and if you are new then you must check below link:
Vuejs

Vue 3 Image Magnifier Working Functionality
Vue 3 Image Magnifier Working Functionality

Friends now I proceed onwards and here is the working code snippet and please use this carefully to avoid the mistakes:

1. Firstly friends we need fresh vuejs(Vue 3) setup and for that we need to run below commands into our terminal and also w should have latest node version installed on our system:

Guys you can skip this first step if you already have vuejs fresh setup:

npm install -g @vue/cli

vue create vuedemo

cd vuedemo

npm run serve //http://localhost:8080/

2. Now friends please create new file “App.css” inside src folder and add below code inside it:

* {box-sizing: border-box;}
.img-magnifier-container {
  position:relative;
}
.img-magnifier-glass {
  position: absolute;
  border: 3px solid #000;
  border-radius: 50%;
  cursor: none;
  /*Set the size of the magnifier glass:*/
  width: 100px;
  height: 100px;
}

3. Finally friends we need to add below code into our src/App.vue file to get final output on web browser:

<template>
 

   <div class="img-magnifier-container">
    <img id="myimage" src="https://therichpost.com/wp-content/uploads/2021/05/category_img_02.jpg" width="600" height="400">
  </div>

   
    
</template>
<script>
import "./App.css";
import "./App.js";
export default {
}
</script>

4. Now friends please create new file “App.js” inside src folder and add below code inside it:

//Image Magnifire Functions
function magnify(imgID, zoom) {
    var img, glass, w, h, bw;
    img = document.getElementById(imgID);
    /*create magnifier glass:*/
    glass = document.createElement("DIV");
    glass.setAttribute("class", "img-magnifier-glass");
    /*insert magnifier glass:*/
    img.parentElement.insertBefore(glass, img);
    /*set background properties for the magnifier glass:*/
    glass.style.backgroundImage = "url('" + img.src + "')";
    glass.style.backgroundRepeat = "no-repeat";
    glass.style.backgroundSize = (img.width * zoom) + "px " + (img.height * zoom) + "px";
    bw = 3;
    w = glass.offsetWidth / 2;
    h = glass.offsetHeight / 2;
    /*execute a function when someone moves the magnifier glass over the image:*/
    glass.addEventListener("mousemove", moveMagnifier);
    img.addEventListener("mousemove", moveMagnifier);
    /*and also for touch screens:*/
    glass.addEventListener("touchmove", moveMagnifier);
    img.addEventListener("touchmove", moveMagnifier);
    function moveMagnifier(e) {
      var pos, x, y;
      /*prevent any other actions that may occur when moving over the image*/
      e.preventDefault();
      /*get the cursor's x and y positions:*/
      pos = getCursorPos(e);
      x = pos.x;
      y = pos.y;
      /*prevent the magnifier glass from being positioned outside the image:*/
      if (x > img.width - (w / zoom)) {x = img.width - (w / zoom);}
      if (x < w / zoom) {x = w / zoom;}
      if (y > img.height - (h / zoom)) {y = img.height - (h / zoom);}
      if (y < h / zoom) {y = h / zoom;}
      /*set the position of the magnifier glass:*/
      glass.style.left = (x - w) + "px";
      glass.style.top = (y - h) + "px";
      /*display what the magnifier glass "sees":*/
      glass.style.backgroundPosition = "-" + ((x * zoom) - w + bw) + "px -" + ((y * zoom) - h + bw) + "px";
    }
    function getCursorPos(e) {
      var a, x = 0, y = 0;
      e = e || window.event;
      /*get the x and y positions of the image:*/
      a = img.getBoundingClientRect();
      /*calculate the cursor's x and y coordinates, relative to the image:*/
      x = e.pageX - a.left;
      y = e.pageY - a.top;
      /*consider any page scrolling:*/
      x = x - window.pageXOffset;
      y = y - window.pageYOffset;
      return {x : x, y : y};
    }
  }

  //Image Magnifire Calls
  setTimeout(function(){ 
  magnify("myimage", 3);
   }, 1000);

Now we are done friends also and If you have any kind of query or suggestion or any requirement then feel free to comment below.

Note: Friends, I just tell the basic setup and things, you can change the code according to your requirements. For better understanding must watch video above.

I will appreciate that if you will tell your views for this post. Nothing matters if your views will be good or bad.

Jassa

Thanks

Ajay Malhotra
the authorAjay Malhotra
Hello to all. Welcome to therichpost.com. Myself Ajay Malhotra and I am freelance full stack developer. I love coding. I know WordPress, Core php, Angularjs, Angular 2, Angular 6, Angular 7, Angular 8, Angular 9, Angular 10, Angular 11, Angular12, Bootstrap 5, Nodejs, Laravel, Codeigniter, Shopify, Squarespace, jQuery, Google Map Api, Vuejs, Reactjs, Big commerce etc.

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