Panzoom library and filling a div with a centered image

Question

The Panzoom library ( https://timmywil.com/panzoom/demo/ ) allows you to move and zoom an image in a div:

 var panzoom1 = Panzoom(document.querySelector(".zoom-area1"), { maxScale: 6 }); document.querySelector(".zoom-wrapper1").addEventListener("wheel", panzoom1.zoomWithWheel); var panzoom2 = Panzoom(document.querySelector(".zoom-area2"), { maxScale: 6 }); document.querySelector(".zoom-wrapper2").addEventListener("wheel", panzoom2.zoomWithWheel);

 .main-container { display: flex; } .zoom-wrapper1 { width: 300px; height: 300px; border: 5px solid #1C6EA4; } .zoom-wrapper2 { width: 300px; height: 300px; border: 5px solid #1C6EA4; }

 <script src="https://timmywil.com/panzoom/demo/panzoom.js"></script> <div class="main-container"> <div class="zoom-wrapper1"> <div class="zoom-area1"> <img src="https://ironcodestudio.com/wp-content/uploads/2015/03/css-remove-horizontal-scrollbar.jpg" /> </div> </div> <div class="zoom-wrapper2"> <div class="zoom-area2"> <img src="https://image.freepik.com/free-photo/vertical-view-eiffel-tower-paris-france_1258-3169.jpg" /> </div> </div> </div>

Everything is working properly.

Now I would like these images to fill their divs but:

the image has to be centered vertically and horizontally
if the image has a horizontal orientation, its height cannot be higher than the height of the div
if the image has a vertical orientation, then its width cannot be greater than the div's width. Exactly like here: https://drive.google.com/file/d/1znFq-EJVE4Dv2j9sc3xZUZuMH0bhRsfz/view?usp=sharing

How to do it? I'm trying different ways and I'm already running out of ideas.

Answer 1

I'm not sure, but I think this is ok:

 var zoomWraper1 = document.querySelector(".zoom-wrapper1"); var zoomWraper2 = document.querySelector(".zoom-wrapper2"); var panzoom1 = Panzoom(document.querySelector(".zoom-area1"), { maxScale: 6 }); zoomWraper1.addEventListener("wheel", panzoom1.zoomWithWheel); var panzoom2 = Panzoom(document.querySelector(".zoom-area2"), { maxScale: 6 }); zoomWraper2.addEventListener("wheel", panzoom2.zoomWithWheel); panzoom1.pan(0, 0); panzoom1.zoom(300 / document.querySelector(".zoom-area1 img").height); panzoom2.pan(0, 0); panzoom2.zoom(300 / document.querySelector(".zoom-area2 img").width);

 body { width: 100%; height: 100vh; } button { margin-right: 20px; } .main-container { display: flex; align-items: center; justify-content: center; height: 100%; } .zoom-wrapper1 { width: 300px; height: 300px; border: 5px solid #1c6ea4; display: flex; align-items: center; justify-content: center; } .zoom-wrapper2 { width: 300px; height: 300px; border: 5px solid #1c6ea4; display: flex; align-items: center; justify-content: center; }

 <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="style.css"> <title>Document</title> </head> <body> <div class="main-container"> <div class="zoom-wrapper1"> <div class="zoom-area1"> <img src="https://images.unsplash.com/photo-1552288092-76e7d732366c?ixid=MnwxMjA3fDB8MHxzZWFyY2h8MXx8cGFub3JhbWljfGVufDB8fDB8fA%3D%3D&ixlib=rb-1.2.1&w=1000&q=80"> </div> </div> <div class="zoom-wrapper2"> <div class="zoom-area2"> <img src="https://i2.wp.com/digital-photography-school.com/wp-content/uploads/2013/08/1.-Moraine_final.jpg"> </div> </div> </div> <script src="https://timmywil.com/panzoom/demo/panzoom.js"></script> <script src="script.js"></script> </body> </html>

Definitely the problem is that the zoom escapes to the sides, it is not directed to the point pointed by the mouse. This needs improvement.

Panzoom library and filling a div with a centered image

Question

1 answers

solution1
0 ACCPTED 2021-06-29 05:53:15

Panzoom library and filling a div with a centered image

Question

1 answers

solution1 0 ACCPTED 2021-06-29 05:53:15

solution1
0 ACCPTED 2021-06-29 05:53:15