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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="/static/style.css">
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<link rel=" stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css" />
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<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.27.2/axios.min.js" integrity="sha512-odNmoc1XJy5x1TMVMdC7EMs3IVdItLPlCeL5vSUPN2llYKMJ2eByTTAIiiuqLg+GdNr9hF6z81p27DArRFKT7A==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
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<title>Harvesting the Net</title>
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</head>
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<body>
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<!-- Loading gif -->
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<div id="loading" class="animate__animated">
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<img src="https://shortpixel.com/img/spinner2.gif" alt="">
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</div>
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<div id="text">
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<p class="marquee">
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<!-- Here is where the text is rendered -->
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</p>
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</div>
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<img id="pic" src="">
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<div class="viewport">
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<div class="scene3D-container">
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<div class="scene3D">
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<!-- Here is where the pics are rendered -->
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</div>
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</div>
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</div>
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<script>
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// TODO: list setup to museum
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// TODO: check higher quality pics
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// TODO: automation scripts in parallel
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// TODO: credits at the end
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// TODO: attempt on button to start everything
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let n = 0
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let scrollVal = 0
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// Automate scrolling
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function pageScroll(scroll) {
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window.scrollBy(0, scroll);
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scrolldelay = setTimeout(pageScroll, 50, scroll);
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}
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// After 100 pics appeared, delete the farer pic
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// at the bottom every time a new pic is added
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//
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// Otherwise the computational work would be too heavy
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// TODO: cancellare immagini più lentamente
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function removeElements(num) {
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let hold = 100
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if (num >= hold) {
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var elem = document.getElementById(`num${num-hold}`);
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elem.remove()
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console.log(num)
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}
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}
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// Fetch data from a json read by Flask
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function getData() {
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url = "/api/datapoint";
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function r(x) {
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return Math.floor(Math.random() * 300 + x)
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}
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axios.get(url)
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.then(function(response) {
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if (response.data.pics[String(n)]) {
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scrollVal = 1
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if (n >= 20){
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pageScroll(scrollVal)}
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// Inject the HTML page with the src of the scraped picture and the scraped text of the metadata from Google
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// TODO: animazione stabile, ora accelera, test per vedere se non fa casino
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document.querySelector(".marquee").insertAdjacentHTML("afterbegin", `${response.data.meta[String(n)]} --- `)
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document.querySelector('.scene3D').innerHTML += `<div><img id="num${String(n)}" style='margin:${r(1)}% ${r(2)}% ${r(3)}% -${r(4)}%' src=${response.data.pics[String(n)]}></div>`
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n++
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} else {
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// if the data is empty, stop the automatic scrolling
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console.log('pause')
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scrollVal = 0
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pageScroll(scrollVal)
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}
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removeElements(n)
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})
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.catch(function(error) {
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console.log(error);
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});
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}
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// Loading gif for 15 seconds
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// then start to scroll after 7 seconds
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setTimeout(() => {
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document.getElementById('loading').classList.add('animate__fadeOut')
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var intervalID = window.setInterval(getData, 2000);
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// setTimeout(() => {
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// pageScroll(scrollVal)
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// }, 7000);
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}, 5000); //TODO: rimettere 15s
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// 3D stuff
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var numberOfItems = 800;
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document.addEventListener("DOMContentLoaded", function() {
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window.addEventListener("scroll", moveCamera);
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window.addEventListener("mousemove", moveCameraAngle);
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setSceneHeight();
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})
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function moveCamera() {
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document.documentElement.style.setProperty("--cameraZ", window.pageYOffset);
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}
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function setSceneHeight() {
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const itemZ = parseFloat(
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getComputedStyle(document.documentElement).getPropertyValue("--itemZ")
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);
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const scenePerspective = parseFloat(
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getComputedStyle(document.documentElement).getPropertyValue(
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"--scenePerspective"
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)
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);
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const cameraSpeed = parseFloat(
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getComputedStyle(document.documentElement).getPropertyValue("--cameraSpeed")
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);
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const height =
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window.innerHeight +
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scenePerspective * cameraSpeed +
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itemZ * cameraSpeed * numberOfItems;
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document.documentElement.style.setProperty("--viewportHeight", height);
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}
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function moveCameraAngle(event) {
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const xGap =
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(((event.clientX - window.innerWidth / 2) * 100) /
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(window.innerWidth / 2)) *
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-1;
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const yGap =
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(((event.clientY - window.innerHeight / 2) * 100) /
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(window.innerHeight / 2)) *
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-1;
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const newPerspectiveOriginX =
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perspectiveOrigin.x + (xGap * perspectiveOrigin.maxGap) / 100;
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const newPerspectiveOriginY =
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perspectiveOrigin.y + (yGap * perspectiveOrigin.maxGap) / 40;
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document.documentElement.style.setProperty(
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"--scenePerspectiveOriginX",
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newPerspectiveOriginX
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);
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document.documentElement.style.setProperty(
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"--scenePerspectiveOriginY",
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newPerspectiveOriginY
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);
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}
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</script>
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</body>
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</html>
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