WME/aufgabe5/public/assets/js/webgl.js

115 lines
No EOL
3 KiB
JavaScript

let tableData_global = []; // fetched date
let flags;
const doFetchCountries = () => {
$.ajax({ url: "/items" }).done((data) => {
if (data instanceof Array) tableData_global = data;
else {
tableData_global = [];
tableData_global.push(data);
}
setup_bars();
});
};
window.onload = () => {
doFetchCountries();
setup();
};
// mappa
const options = {
lat: 0,
lng: 0,
zoom: 4,
style: 'mapbox://styles/mapbox/traffic-night-v2',
pitch: 50,
}
const key = 'pk.eyJ1IjoicmljYXJkb2xhbmduZXIiLCJhIjoiY2pxano2enh2MG1qazN4bm5lajIzeDl3eiJ9.wK0MtuxLgJxDcGUksKMeKg';
let mappa;
let myMap;
let canvas;
// three
let scene;
let camera;
let renderer;
let zoom = 1.0;
function setup_enables() {
flags = [
{ id: "birth_rate_per_1000", enabled: true },
{ id: "cell_phones_per_100", enabled: false },
{ id: "children_per_woman", enabled: false },
{ id: "electricity_consumption_per_capita", enabled: false },
{ id: "gdp_per_capita", enabled: false },
{ id: "gdp_per_capita_growth", enabled: false },
{ id: "inflation_annual", enabled: false },
{ id: "internet_user_per_100", enabled: false },
{ id: "life_expectancy", enabled: false },
{ id: "military_expenditure_percent_of_gdp", enabled: false },
];
}
function setup() {
mappa = new Mappa('MapboxGL', key);
myMap = mappa.tileMap(options);
canvas = document.getElementById("mapa");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.up = new THREE.Vector3(0, 0, 1);
scene = new THREE.Scene();
renderer = new THREE.WebGLRenderer({ alpha: true, canvas: canvas });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
myMap.overlay(canvas);
myMap.onChange(animate);
scene.add(camera);
setup_enables();
}
function setup_bars() {
let k = 1000;
for (let i = 0; i < tableData_global.length; i++) {
let long = tableData_global[i]["gps_long"];
let lat = tableData_global[i]["gps_lat"];
for (let j = 0; j < flags.length; j++) {
let flag = flags[j];
if (flag.enabled) {
let value = tableData_global[i][flag.id];
let geometry = new THREE.BoxGeometry(1, 1, value);
let material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
let cube = new THREE.Mesh(geometry, material);
cube.position.set(long, lat, 0.0);
scene.add(cube);
}
}
}
}
function draw() { }
function animate() {
let position = myMap.pixelToLatlng(window.innerWidth / 2, window.innerHeight / 2);
let look_at = new THREE.Vector3(position.x, position.y, 0);
camera.position.set(look_at.x, look_at.y - 10 * zoom, look_at.z + 30 * zoom);
camera.lookAt(look_at);
renderer.render(scene, camera);
}