# | Coordinate | Distance to camera | |
---|---|---|---|
Double-click on the scene for picking |
Display a 3D Tiles point cloud.
import { Vector3 } from 'three';
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import Tiles3D from '@giro3d/giro3d/entities/Tiles3D.js';
import Tiles3DSource from '@giro3d/giro3d/sources/Tiles3DSource.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
const tmpVec3 = new Vector3();
const viewerDiv = document.getElementById('viewerDiv');
Instance.registerCRS(
'EPSG:2154',
'+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs',
);
const instance = new Instance(viewerDiv, {
crs: 'EPSG:2154',
renderer: {
clearColor: 0xcccccc,
},
});
// Configure Point Cloud
const pointcloud = new Tiles3D(
'pointcloud',
new Tiles3DSource('https://3d.oslandia.com/3dtiles/eglise_saint_blaise_arles/tileset.json'),
);
function placeCamera(position, lookAt) {
instance.camera.camera3D.position.set(position.x, position.y, position.z);
instance.camera.camera3D.lookAt(lookAt);
// create controls
const controls = new MapControls(instance.camera.camera3D, instance.domElement);
controls.target.copy(lookAt);
controls.enableDamping = true;
controls.dampingFactor = 0.25;
instance.useTHREEControls(controls);
instance.notifyChange(instance.camera.camera3D);
}
// add pointcloud to scene
function initializeCamera() {
const bbox = pointcloud.root.bbox
? pointcloud.root.bbox
: pointcloud.root.boundingVolume.box.clone().applyMatrix4(pointcloud.root.matrixWorld);
instance.camera.camera3D.far = 2.0 * bbox.getSize(tmpVec3).length();
const ratio = bbox.getSize(tmpVec3).x / bbox.getSize(tmpVec3).z;
const position = bbox.min
.clone()
.add(bbox.getSize(tmpVec3).multiply({ x: 0, y: 0, z: ratio * 0.5 }));
const lookAt = bbox.getCenter(tmpVec3);
lookAt.z = bbox.min.z;
placeCamera(position, lookAt);
}
instance.add(pointcloud).then(initializeCamera);
Inspector.attach(document.getElementById('panelDiv'), instance);
const resultsTable = document.getElementById('results-body');
const formatter = new Intl.NumberFormat();
function format(point) {
return `x: ${formatter.format(point.x)}\n
y: ${formatter.format(point.y)}\n
z: ${formatter.format(point.z)}`;
}
instance.domElement.addEventListener('dblclick', e => {
const picked = instance.pickObjectsAt(e, { radius: 5, limit: 10, where: ['pointcloud'] });
if (picked.length === 0) {
const row = document.createElement('tr');
const count = document.createElement('th');
count.setAttribute('scope', 'row');
count.innerText = '-';
const coordinates = document.createElement('td');
coordinates.innerText = '-';
const distanceToCamera = document.createElement('td');
distanceToCamera.innerText = '-';
row.append(count, coordinates, distanceToCamera);
resultsTable.replaceChildren(row);
} else {
const rows = picked.map((p, i) => {
const row = document.createElement('tr');
const count = document.createElement('th');
count.setAttribute('scope', 'row');
count.innerText = `${i + 1}`;
const coordinates = document.createElement('td');
coordinates.innerHTML = format(p.point);
const distanceToCamera = document.createElement('td');
distanceToCamera.innerText = formatter.format(p.distance);
row.append(count, coordinates, distanceToCamera);
return row;
});
resultsTable.replaceChildren(...rows);
}
});
<!doctype html>
<html lang="en">
<head>
<title>3D Tiles Point Cloud</title>
<meta charset="UTF-8" />
<meta name="name" content="pointcloud" />
<meta name="description" content="Display a 3D Tiles point cloud." />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" href="https://giro3d.org/images/favicon.svg" />
<link href="https://giro3d.org/assets/bootstrap-custom.css" rel="stylesheet" />
<script src="https://giro3d.org/assets/bootstrap.bundle.min.js"></script>
<link
rel="stylesheet"
type="text/css"
href="https://giro3d.org/latest/css/example.css"
/>
</head>
<body>
<div id="viewerDiv" class="m-0 p-0 w-100 h-100"></div>
<div id="panelDiv" class="position-absolute top-0 start-0 mh-100 overflow-auto"></div>
<div class="side-pane-with-status-bar">
<div class="card">
<div class="card-body" style="max-width: 30vw; overflow: auto">
<!-- Result table -->
<table class="table small">
<thead>
<tr>
<th scope="col">#</th>
<th scope="col">Coordinate</th>
<th scope="col">Distance to camera</th>
</tr>
</thead>
<tbody id="results-body">
<tr>
<th scope="row" colspan="4">Double-click on the scene for picking</th>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<script type="module" src="index.js"></script>
<script>
/* activate popovers */
const popoverTriggerList = [].slice.call(
document.querySelectorAll('[data-bs-toggle="popover"]'),
);
popoverTriggerList.map(
// bootstrap is used as script in the template, disable warning about undef
// eslint-disable-next-line no-undef
popoverTriggerEl =>
new bootstrap.Popover(popoverTriggerEl, {
trigger: 'hover',
placement: 'left',
content: document.getElementById(
popoverTriggerEl.getAttribute('data-bs-content'),
).innerHTML,
html: true,
}),
);
</script>
</body>
</html>
{
"name": "pointcloud",
"dependencies": {
"@giro3d/giro3d": "0.38.5"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}