Creating a slider that slides items in an arc / upper cricle - css

Question

I'm attempting to create a carousel that rotates items in a upper circle / arc fashion.
This is how it's supposed to roll: https://thumbs.gfycat.com/HastyTemptingBarnswallow-mobile.mp4
My initial thought is to have 1 element in the middle then one previous and next which are slightly rotated. Upon dragging it should move all items along the x-axis and slightly rotate. This is my attempt:
https://codesandbox.io/s/muddy-cdn-rbs34?from-embed
Problem is I can't seem to make the dragging animation very smooth. I might also just be overthinking this and go in the wrong direction. Any advice?

Answer 1

I used the following link to create an effect like the one you want
https://tympanus.net/codrops/2013/08/09/building-a-circular-navigation-with-css-transforms/
You will have to adjust the CSS according to your UI.
$('.opened-nav li').click(function(event) {
var index = $(".opened-nav li").index(this);
console.log(index)
if (index >= 7) {
return;
}
let startDeg = 80;
$('#cn-wrapper').css({
'-webkit-transform': 'scale(2) rotate(' + (startDeg - (index) * 40) + 'deg)',
'-moz-transform': 'scale(2) rotate(' + (startDeg - (index) * 40) + 'deg)',
'-ms-transform': 'scale(2) rotate(' + (startDeg - (index) * 40) + 'deg)',
'-o-transform': 'scale(2) rotate(' + (startDeg - (index) * 40) + 'deg)',
'transform': 'scale(2) rotate(' + (startDeg - (index) * 40) + 'deg)'
});
/* console.log(event) */
})
#import url(http://netdna.bootstrapcdn.com/font-awesome/2.0/css/font-awesome.css);
* {
-moz-box-sizing: border-box;
box-sizing: border-box;
margin: 0;
padding: 0;
list-style: none;
position: relative
}
html,
body {
height: 100%;
}
body {
background: #f06060;
color: #fff;
}
.csstransforms .cn-wrapper {
font-size: 1em;
width: 26em;
height: 26em;
overflow: hidden;
position: fixed;
z-index: 10;
bottom: -20em;
left: 50%;
border-radius: 50%;
margin-left: -13em;
-webkit-transform: scale(0.1) rotate(40deg);
-ms-transform: scale(0.1) rotate(40deg);
-moz-transform: scale(0.1) rotate(40deg);
transform: scale(0.1) rotate(40deg);
pointer-events: none;
-webkit-transition: all .3s ease;
-moz-transition: all .3s ease;
transition: all .3s ease;
}
.csstransforms .opened-nav {
border-radius: 50%;
pointer-events: auto;
-webkit-transform: scale(2) rotate(-40deg);
-moz-transform: scale(2) rotate(-40deg);
-ms-transform: scale(2) rotate(-40deg);
transform: scale(2) rotate(-40deg);
}
.cn-overlay {
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.6);
position: fixed;
top: 0;
left: 0;
bottom: 0;
right: 0;
opacity: 0;
visibility: hidden;
-webkit-transition: all .3s ease;
-moz-transition: all .3s ease;
transition: all .3s ease;
z-index: 2;
}
.cn-overlay.on-overlay {
visibility: visible;
opacity: 1;
}
.cn-button {
border: none;
background: none;
color: #f06060;
text-align: center;
font-size: 1.8em;
padding-bottom: 1em;
height: 3.5em;
width: 3.5em;
background-color: #fff;
position: fixed;
left: 50%;
margin-left: -1.75em;
bottom: -1.75em;
border-radius: 50%;
cursor: pointer;
z-index: 11;
}
.cn-button:hover,
.cn-button:active,
.cn-button:focus {
color: #aa1010;
}
.csstransforms .cn-wrapper li {
position: absolute;
font-size: 1.5em;
width: 10em;
height: 10em;
-webkit-transform-origin: 100% 100%;
-moz-transform-origin: 100% 100%;
-ms-transform-origin: 100% 100%;
transform-origin: 100% 100%;
overflow: hidden;
left: 50%;
top: 50%;
margin-top: -1.3em;
margin-left: -10em;
-webkit-transition: border .3s ease;
-moz-transition: border .3s ease;
transition: border .3s ease;
}
.csstransforms .cn-wrapper li a {
display: block;
font-size: 1.18em;
height: 14.5em;
width: 14.5em;
position: absolute;
bottom: -7.25em;
right: -7.25em;
border-radius: 50%;
text-decoration: none;
color: #fff;
padding-top: 1.8em;
text-align: center;
-webkit-transform: skew(-50deg) rotate(-70deg) scale(1);
-ms-transform: skew(-50deg) rotate(-70deg) scale(1);
-moz-transform: skew(-50deg) rotate(-70deg) scale(1);
transform: skew(-50deg) rotate(-70deg) scale(1);
-webkit-backface-visibility: hidden;
-webkit-transition: opacity 0.3s, color 0.3s;
-moz-transition: opacity 0.3s, color 0.3s;
transition: opacity 0.3s, color 0.3s;
}
.csstransforms .cn-wrapper li a span {
font-size: 1.1em;
opacity: 0.7;
}
/* for a central angle x, the list items must be skewed by 90-x degrees
in our case x=40deg so skew angle is 50deg
items should be rotated by x, minus (sum of angles - 180)2s (for this demo) */
.csstransforms .cn-wrapper li{
-webkit-transform: rotate(calc(-10deg + var(--n) * 360deg / 9)) skew(50deg);
-ms-transform: rotate(calc(-10deg + var(--n) * 360deg / 9)) skew(50deg);
-moz-transform: rotate(calc(-10deg + var(--n) * 360deg / 9)) skew(50deg);
transform: rotate(calc(-10deg + var(--n) * 360deg / 9)) skew(50deg);
}
/*.csstransforms .cn-wrapper li:nth-child(odd) a {
background-color: #a11313;
background-color: hsla(0, 88%, 63%, 1);
}
.csstransforms .cn-wrapper li:nth-child(even) a {
background-color: #a61414;
background-color: hsla(0, 88%, 65%, 1);
}
.csstransforms .cn-wrapper li:last-child a {
background-color: #a61414;
background-color: hsl(343, 82%, 50%);
}*/
/* active style */
.csstransforms .cn-wrapper li.active a {
background-color: #b31515;
background-color: hsla(0, 88%, 70%, 1);
}
/* hover style */
.csstransforms .cn-wrapper li:not(.active) a:hover,
.csstransforms .cn-wrapper li:not(.active) a:active,
.csstransforms .cn-wrapper li:not(.active) a:focus {
background-color: #b31515;
background-color: hsla(0, 88%, 70%, 1);
}
.csstransforms .cn-wrapper li:not(.active) a:focus {
position: fixed;
}
/* fallback */
.no-csstransforms .cn-button {
display: none;
}
.no-csstransforms .cn-wrapper li {
position: static;
float: left;
font-size: 1em;
height: 5em;
width: 5em;
background-color: #eee;
text-align: center;
line-height: 5em;
}
.no-csstransforms .cn-wrapper li a {
display: block;
width: 100%;
height: 100%;
text-decoration: none;
color: inherit;
font-size: 1.3em;
border-right: 1px solid #ddd;
}
.no-csstransforms .cn-wrapper li a:last-child {
border: none;
}
.no-csstransforms .cn-wrapper li a:hover,
.no-csstransforms .cn-wrapper li a:active,
.no-csstransforms .cn-wrapper li a:focus {
background-color: white;
}
.no-csstransforms .cn-wrapper li.active a {
background-color: #6F325C;
color: #fff;
}
.no-csstransforms .cn-wrapper {
font-size: 1em;
height: 5em;
width: 25.15em;
bottom: 0;
margin-left: -12.5em;
overflow: hidden;
position: fixed;
z-index: 10;
left: 50%;
border: 1px solid #ddd;
}
#media screen and (max-width:480px) {
.csstransforms .cn-wrapper {
font-size: .68em;
}
.cn-button {
font-size: 1em;
}
.csstransforms .cn-wrapper li {
font-size: 1.52em;
}
}
#media screen and (max-width:320px) {
.no-csstransforms .cn-wrapper {
width: 15.15px;
margin-left: -7.5em;
}
.no-csstransforms .cn-wrapper li {
height: 3em;
width: 3em;
}
}
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.js"></script>
<script src="https://use.fontawesome.com/2972279885.js"></script>
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<div class="cn-wrapper opened-nav" id="cn-wrapper">
<ul>
<li style="--n: 0"><i class="fa fa-film"></i></li>
<li style="--n: 1"><i class="fa fa-headphones"></i></li>
<li style="--n: 2"><i class="fa fa-bookmark"></i></li>
<li style="--n: 3"><i class="fa fa-cog"></i></li>
<li style="--n: 4"><i class="fa fa-flag"></i></li>
<li style="--n: 5"><i class="fa fa-calculator"></i></li>
<li style="--n: 6"><i class="fa fa-coffee"></i></li>
<li style="--n: 7"></li>
<li style="--n: 8"></li>
</ul>
</div>