Low Poly Art Generator

Low Poly Art Generator

<!--
    https://github.com/evansque/polygonize
-->
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

<div class="container">
    <header id="header">
        <div class="cell-size-value-wrapper">
            <span>Cell size:</span>
            <span id="cell-size-value">30</span>
        </div>

        <input type="range" id="cell-size" min="10" max="100" value="30" onchange="updateVisibleValue()">

        <label for="image-file" class="button">
            <i class="fa fa-upload"></i>
            Upload an image
        </label>
        <input type="file" id="image-file" onchange="readURL(this)">
    </header>

    <div id="canvas">
        Just add a picture and see the magic
    </div>
</div>

<div id="loading" class="loading">Processing...</div>    

low-poly-art-generator.markdown

Low Poly Art Generator

A Pen by ✠ Aragua ✠ 🇧🇷 on CodePen.

License.

Low Poly Art Generator

script.js

// https://github.com/evansque/polygonize

let src = '';

function updateVisibleValue() {
  document.getElementById('cell-size-value').innerText = document.getElementById('cell-size').value;
  if (src) {
    poly()
  }
}

function readURL(input) {
  if (input.files && input.files[0]) {
    const reader = new FileReader();
    reader.onload = event => {
      src = event.target.result;
      poly();
      document.getElementById('image-file').value = '';
    };
    reader.readAsDataURL(input.files[0]);
  }
}

function poly() {
  loading(true);
  Polygonize({
    src: src,
    cellSize: parseInt(document.getElementById('cell-size').value),
    progress: function (progress) {
      // console.log(progress + '%');
    },
    onSuccess: function(canvas) {
      const canvasContainer = document.getElementById('canvas')
      canvasContainer.innerHTML = '';
      canvasContainer.appendChild(canvas);
      loading(false);
    }
  });
}

function loading(show) {
  let loading = document.getElementById('loading');
  loading.style.display = show ? "flex" : "none";
}

scripts

<script src="https://cdn.rawgit.com/AymanJitan/polygonize/master/dist/polygonize.js"></script>
<script src="https://cdn.rawgit.com/ironwallaby/delaunay/master/delaunay.js"></script>

style.css

* {
    margin: 0;
    padding: 0;
}

html,
body,
.container {
    height: 100%;
    font-family: Arial, Helvetica, sans-serif;
}

input[type="file"] {
    display: none;
}

.button {
    background: #1abc9c;
    color: #fff;
    float: right;
    margin: 10px 10px 10px 0px;
    padding: 13px 18px;
    font-size: 12px;
    border-radius: 3px;
    cursor: pointer;
}

.button:hover {
    background: #18ac8e;
}

.container {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    align-content: stretch;
    align-items: stretch;
}

.container #header {
    height: 60px;
    min-height: 60px;
    background: #34495e;
    z-index: 2;
    order: 0;
    flex: 0 1 auto;
    align-self: auto;
    display: flex;
    flex-flow: row;
    position: fixed;
    left:0;
    right:0;
    top: 0;
}

.container #canvas {
    order: 1;
    flex: 1 1 auto;
    align-self: stretch;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #bbb;
    font-size: 24px;
    padding: 80px 20px 20px 20px;
    text-align: center;
    background: #f6f6f6;
}

.container #canvas canvas {
    max-width: 75%;
    max-height: 75%;
    margin: 0 auto;
    display: block;
    align-self: center;
}

#cell-size {
    width: 60%;
    margin: 28px;
    flex: 1;
}

.cell-size-value-wrapper {
    font-size: 13px;
    color: #fff;
    line-height: 60px;
    padding: 0 15px;
}

input[type=range] {
    -webkit-appearance: none;
    margin: 10px 0;
    width: 100%;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 2px;
    cursor: pointer;
    animate: 0.2s;
    box-shadow: 0px 0px 0px transparent, 0px 0px 0px transparent;
    background: #fff;
    border-radius: 25px;
    border: 0px solid transparent;
}

input[type=range]::-webkit-slider-thumb {
    box-shadow: 0px 0px 0px transparent, 0px 0px 0px transparent;
    border: 0px solid transparent;
    height: 16px;
    width: 16px;
    border-radius: 8px;
    background: #1abc9c;
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -6px;
}

input[type=range]:focus::-webkit-slider-runnable-track {
    background: #fff;
}

input[type=range]::-moz-range-track {
    width: 100%;
    height: 2px;
    cursor: pointer;
    animate: 0.2s;
    box-shadow: 0px 0px 0px transparent, 0px 0px 0px transparent;
    background: #fff;
    border-radius: 25px;
    border: 0px solid transparent;
}

input[type=range]::-moz-range-thumb {
    box-shadow: 0px 0px 0px transparent, 0px 0px 0px transparent;
    border: 0px solid transparent;
    height: 16px;
    width: 16px;
    border-radius: 8px;
    background: #1abc9c;
    cursor: pointer;
    margin-top: -6px;
}

.loading {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10;
    line-height: 100%;
    color: #fff;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 36px;
    display: none;
}