three-geo/examples/flat/index.html

72 lines
2.5 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
<title>Flatten terrain demo</title>
</head>
<body>
<div>
Flatten terrain demo <a href="https://github.com/w3reality/three-geo/tree/master/examples/flat/index.html">Source Code</a>
</div>
<canvas id="canvas" style="width: 100%; height: 100%;"></canvas>
<script type="module">
import Stats from '../deps/three/examples/jsm/libs/stats.module.js';
import { OrbitControls } from '../deps/three/examples/jsm/controls/OrbitControls.js';
(async () => {
window.THREE = await import('../deps/three/build/three.module.js');
const Threelet = (await import('../deps/threelet.esm.js')).default;
const ThreeGeo = (await import('../../dist/three-geo.esm.js')).default;
// const ThreeGeo = (await import('../../target/three-geo.esm.dev.js')).default;
//
const threelet = new Threelet({
canvas: document.getElementById("canvas"),
// optAxes: false,
});
threelet.setup('mod-controls', OrbitControls);
// threelet.setup('mod-stats', Stats);
const { scene, render } = threelet;
render(); // first time
const ioToken = 'pk.eyJ1IjoiamRldmVsIiwiYSI6ImNqemFwaGJoZjAyc3MzbXA1OGNuODBxa2EifQ.7M__SgfWZGJuEiSqbBXdoQ';
const tgeo = new ThreeGeo({
// tokenMapbox: '********', // <---- set your Mapbox API token here
tokenMapbox: ioToken,
});
if (tgeo.tokenMapbox === ioToken && window.location.origin !== 'https://w3reality.github.io') {
const warning = 'Please set your own Mapbox API token in the ThreeGeo constructor.';
alert(warning);
throw warning;
}
const origin = [46.5763, 7.9904];
const radius = 5.0;
//
const terrain = await tgeo.getTerrainRgb(origin, radius, 12);
scene.add(terrain);
terrain.children.forEach(mesh => {
// To get more 'lightweight' flat terrain, you might want to try [this](https://github.com/w3reality/three-geo/issues/19#issuecomment-640161898)
const position = mesh.geometry.attributes.position;
const arr = position.array;
for (let i = 0; i < arr.length; i += 3) {
arr[i+2] = 0; // set z value (height) to zero
}
position.needsUpdate = true;
mesh.rotation.x = - Math.PI/2;
mesh.material.side = THREE.DoubleSide;
});
render();
})();
</script>
</body>
</html>