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Image Magnifier Glass / Image Zoom

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Hi tuanphan 

THX a lot for your help! I can see the picture after putting the code in a code block but cant see any magnifier glass effect....I'm working with the template pedro... Any ideas why?🙂

Angela

 

4 hours ago, tuanphan said:

<div class="img-magnifier-container"> <img id="myimage" src="https://cdn.pixabay.com/photo/2020/01/09/03/41/cow-4751775__340.jpg" width="600" height="400"> </div> <script> /* Initiate Magnify Function with the id of the image, and the strength of the magnifier glass:*/ magnify("myimage", 3); </script> <style> .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; } </style> <script> 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}; } } </script>

 

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  • 1 month later...
  • 9 months later...

Sorry, the above code has incorrect order. use this new code

Add a Code Block >>> Add all code

<div class="img-magnifier-container">
  <img id="myimage" src="https://cdn.pixabay.com/photo/2020/01/09/03/41/cow-4751775__340.jpg" width="600" height="400">
</div>

<style>
.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;
}
</style>
<script>
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};
  }
}
</script>
<script>
/* Initiate Magnify Function
with the id of the image, and the strength of the magnifier glass:*/
magnify("myimage", 3);
</script>

 

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  • 1 month later...
On 5/22/2021 at 2:43 AM, kellybellyjones said:

Have you got it sorted

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If you find my answer useful, let's leave a like or upvote so others with the same issue can find their solution. Thank you!

 

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  • 3 months later...
On 10/20/2021 at 6:54 PM, waiki said:

Hi @tuanphan I tested the code and it works great. Except on mobile preview the image is squeezed together. Can you tell me how I can fix this, for an image with a 1920 x 1080 size. 

 

Thank you in advance!!!

Can you share link to your site?

Email me if you have need any help (free, of course.). Answer within 24 hours. 
Or send to forum message

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  • 2 years later...
On 4/8/2024 at 8:19 PM, Ellelle said:

Hi @tuanphan 

I'm also looking to create a magnifying glass when an image is moused over, just within one section of a page. Something similar to this:  https://www.w3schools.com/howto/howto_js_image_magnifier_glass.asp or this: https://www.marieneurath.org/

I tried your code above which didn't seem to do anything.

Is this possible? I'm using version 7.1. 

Thank you!

You can use Image Zoom Plugin (affiliate link) or this link (non-affiliate link) to achieve this.

Or you can message me with your site url, I can help you achieve this.

Email me if you have need any help (free, of course.). Answer within 24 hours. 
Or send to forum message

Contact Customer Care - Learn CSS - Buy me a coffee (thank you!)

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  • 2 months later...
On 7/9/2024 at 5:05 AM, Squaredspace said:

Hi @tuanphan,

Is it possible to create a magnifying glass effect for images using only CSS code and no script? Am currently on a Personal Plan with no plans to upgrade to a higher level plan yet. 

If you have script code, you can add it via Markdown Block. It won't work in all cases, but worth to give a try

Email me if you have need any help (free, of course.). Answer within 24 hours. 
Or send to forum message

Contact Customer Care - Learn CSS - Buy me a coffee (thank you!)

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