Element informations
Name | Value | ||
---|---|---|---|
Click on the scene to inspect object properties |
Display a 3D Tiles building converted from a IFC file with py3dtiles.
import {
Color,
DirectionalLight,
AmbientLight,
Vector3,
GridHelper,
MathUtils,
} 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();
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({
target: "view",
crs: "EPSG:2154",
backgroundColor: 0xcccccc,
});
// Add a sunlight
const sun = new DirectionalLight("#ffffff", 1.4);
sun.position.set(1, 0, 1).normalize();
sun.updateMatrixWorld(true);
instance.scene.add(sun);
// We can look below the floor, so let's light also a bit there
const sun2 = new DirectionalLight("#ffffff", 0.5);
sun2.position.set(0, -1, 1);
sun2.updateMatrixWorld();
instance.scene.add(sun2);
// Add ambient light
const ambientLight = new AmbientLight(0xffffff, 1);
instance.scene.add(ambientLight);
instance.view.minNearPlane = 0.5;
const ifc = new Tiles3D(
new Tiles3DSource(
"https://3d.oslandia.com/3dtiles/19_rue_Marc_Antoine_Petit_ifc/tileset.json",
),
);
// Hide some elements that don't bring visual value
ifc.addEventListener("object-created", (evt) => {
const obj = evt.obj;
if (obj.userData?.class === "IfcSpace") {
obj.visible = false;
instance.notifyChange();
}
});
function placeCamera(position, lookAt) {
instance.view.camera.position.set(position.x, position.y, position.z);
instance.view.camera.lookAt(lookAt);
// create controls
const controls = new MapControls(instance.view.camera, instance.domElement);
controls.target.copy(lookAt);
controls.enableDamping = true;
controls.dampingFactor = 0.25;
instance.view.setControls(controls);
instance.notifyChange(instance.view.camera);
}
// add pointcloud to scene
function initializeCamera() {
const bbox = ifc.root.boundingVolume.box
.clone()
.applyMatrix4(ifc.root.matrixWorld);
const ratio = bbox.getSize(tmpVec3).x / bbox.getSize(tmpVec3).z;
const position = bbox
.getCenter(new Vector3())
.clone()
.add(bbox.getSize(tmpVec3).multiply(new Vector3(-2, -2, ratio)));
const lookAt = bbox.getCenter(tmpVec3);
lookAt.z = bbox.min.z;
placeCamera(position, lookAt);
const grid = new GridHelper(60, 10);
grid.rotateX(MathUtils.degToRad(90));
grid.position.copy(lookAt);
instance.add(grid);
grid.updateMatrixWorld(true);
}
instance.add(ifc).then(initializeCamera);
Inspector.attach("inspector", instance);
const resultsTable = document.getElementById("results-body");
let highlighted;
let highlightColor = new Color(0xff7171);
let canPick = true;
function highlight(evt) {
if (!canPick) {
return;
}
const picked = instance.pickObjectsAt(evt, {
radius: 5,
limit: 10,
where: [ifc],
filter: (pick) => pick.object.visible, // Ignore invisible objects, such as IfcSpace elements
});
if (highlighted) {
// reset style
const material = highlighted.material;
material.color.copy(material.userData.oldColor);
instance.notifyChange(highlighted);
}
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 obj = picked[0].object;
const material = obj.material;
// keep the old color to reset it later
if (!material.userData.oldColor) {
material.userData.oldColor = material.color.clone();
}
material.color.copy(highlightColor);
instance.notifyChange(obj);
highlighted = obj;
const rows = [];
for (const [name, value] of Object.entries(obj.userData)) {
if (name !== "oldColor" && name !== "parentEntity") {
const row = document.createElement("tr");
const nameCell = document.createElement("td");
nameCell.innerHTML = `<code>${name}</code>`;
const valueCell = document.createElement("td");
valueCell.innerText = value;
row.append(nameCell, valueCell);
rows.push(row);
}
}
resultsTable.replaceChildren(...rows);
}
}
// Prevent picking if user is dragging mouse
instance.domElement.addEventListener("mousedown", () => (canPick = true));
instance.domElement.addEventListener("mousemove", () => (canPick = false));
instance.domElement.addEventListener("mouseup", highlight);
<!doctype html>
<html lang="en">
<head>
<title>3D Tiles Building</title>
<meta charset="UTF-8" />
<meta name="name" content="3dtiles_building" />
<meta
name="description"
content="Display a 3D Tiles building converted from a IFC file with py3dtiles."
/>
<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/examples/css/example.css"
/>
</head>
<body>
<div id="view" class="m-0 p-0 w-100 h-100"></div>
<div
id="inspector"
class="position-absolute top-0 start-0 mh-100 overflow-auto"
></div>
<div class="side-pane-with-status-bar">
<div class="card">
<h5 class="card-header">Element informations</h5>
<div class="card-body" style="max-width: 30vw">
<!-- Result table -->
<table class="table table-sm table-striped">
<thead>
<tr>
<!-- <th scope="col">#</th> -->
<th scope="col">Name</th>
<th scope="col">Value</th>
</tr>
</thead>
<tbody id="results-body">
<tr>
<th scope="row" colspan="4">
Click on the scene to inspect object properties
</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": "3dtiles_building",
"dependencies": {
"@giro3d/giro3d": "0.40.0"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}