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index.pug
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<!DOCTYPE html>
html(lang="zh-TW")
head
meta(charset="UTF-8")
meta(name="viewport", content="width=device-width, initial-scale=1.0")
meta(http-equiv="X-UA-Compatible", content="ie=edge")
title Hand Track Test - August - Let's Write
link(rel="canonical", href="https://letswritetw.github.io/medium-handtrack/")
meta(property="og:url", content="https://letswritetw.github.io/medium-handtrack/")
meta(property="og:site_name", content="Let's Write")
meta(property="og:title", content="Hand Track Test - August - Let's Write")
meta(itemprop="name", content="Hand Track Test - August - Let's Write")
meta(name="description", content="第一次測試handtrack.js，之後想想能拿來做什麼……")
meta(property="og:description", content="第一次測試handtrack.js，之後想想能拿來做什麼……")
meta(itemprop="description", content="第一次測試handtrack.js，之後想想能拿來做什麼……")
link(rel="stylesheet", href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css")
style.
html, body, .container {
margin: 0;
padding: 0;
width: 100vw;
height: 100vh;
overflow: hidden;
}
#video {
display: none;
}
#canvas {
width: 100%;
max-width: 100%;
}
link(rel="shortcut icon", href="https://letswritetw.github.io/letswritetw/dist/img/logo_512.png")
// Google Tag Manager
script.
(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-PGQ9WQT');
body
// Google Tag Manager (noscript)
noscript
iframe(src="https://www.googletagmanager.com/ns.html?id=GTM-PGQ9WQT", height="0", width="0", style="display:none;visibility:hidden")
#app.container-fluid
.row.pt-3
.video.col-8
video#video
canvas#canvas
.info.col-4
.card
.card-header 偵測到的「手」資訊
ul.list-group.list-group-flush(v-for="box in boxs")
li.list-group-item(v-for="(b, i) in box.bbox") {{ tag(i) }} {{ Math.floor(b) }}
hr
script(src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.min.js")
script(src="https://cdn.jsdelivr.net/npm/handtrackjs/dist/handtrack.min.js")
script.
const HandTrack = new Vue({
el: '#app',
data: {
boxs: null
},
methods: {
tag(i) {
switch(i) {
case 0:
return 'X：';
break;
case 1:
return 'Y：';
break;
case 2:
return '寬：';
break;
case 3:
return '長：';
break;
}
}
},
mounted() {
const video = document.getElementById('video');
const canvas = document.getElementById('canvas');
const context = canvas.getContext('2d');
const _this = this;
function runDetection() {
model.detect(video).then(predictions => {
_this.boxs = predictions;
model.renderPredictions(predictions, canvas, context, video);
requestAnimationFrame(runDetection);
});
}
handTrack
.startVideo(video)
.then(res => {
if(res) runDetection()
else console.log('err')
});
handTrack.load({
flipHorizontal: true,
maxNumBoxes: 20,
iouThreshold: 0.5,
scoreThreshold: 0.6,
}).then(lmodel => model = lmodel);
}
})