ifcurl/forgejo/custom/public/assets/viewer.html

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>IFC Viewer</title>
<link rel="icon" href="data:,">
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: #1c1c1e; color: #f0f0f0;
font-family: system-ui, sans-serif; overflow: hidden; }
#viewer { position: fixed; inset: 0; top: var(--toolbar-h, 72px); }
#toolbar {
position: fixed; top: 0; left: 0; right: 0; z-index: 10;
display: flex; flex-direction: column; gap: 6px;
padding: 8px 12px;
background: rgba(28,28,30,0.85); backdrop-filter: blur(8px);
border-bottom: 1px solid rgba(255,255,255,0.08);
}
.trow { display: flex; align-items: center; gap: 6px; }
/* Shared input style */
.ti {
font-size: 12px; color: #f0f0f0; font-family: monospace;
background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12);
border-radius: 4px; padding: 3px 7px; outline: none; min-width: 0;
}
.ti:focus { border-color: rgba(255,255,255,0.3); }
.ti::placeholder { color: #505058; }
/* Row 1 */
#url-input { flex: 1; }
#fov-wrap {
display: flex; align-items: center; gap: 4px; flex-shrink: 0;
font-size: 11px; color: #a0a0a8;
}
#fov-input { width: 44px; text-align: right; }
/* Row 2 structured fields */
.field { display: flex; align-items: center; gap: 4px; min-width: 0; }
.field label { font-size: 10px; color: #808088; flex-shrink: 0; }
#repo-input { flex: 3; }
#ref-input { flex: 2; }
#path-input { flex: 2; }
#selector-input { flex: 1; }
/* Toolbar buttons */
.tb-btn {
font-size: 12px; color: #c0c0c8; cursor: pointer; flex-shrink: 0;
background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12);
border-radius: 4px; padding: 3px 8px; white-space: nowrap;
}
.tb-btn:hover { background: rgba(255,255,255,0.14); }
.tb-btn.active { color: #a8c8ff; background: rgba(80,120,255,0.2);
border-color: rgba(80,120,255,0.5); }
/* Status */
#status {
position: fixed; bottom: 12px; left: 50%;
transform: translateX(-50%); z-index: 10;
font-size: 13px; color: #a0a0a8;
background: rgba(28,28,30,0.85);
padding: 4px 12px; border-radius: 4px;
pointer-events: none;
}
#status:empty { display: none; }
body.drag-over::after {
content: "Drop ifc:// URL to load";
position: fixed; inset: 0; z-index: 100;
display: flex; align-items: center; justify-content: center;
font-size: 24px; color: #f0f0f0;
background: rgba(28,28,30,0.7);
pointer-events: none;
}
</style>
<script type="importmap">
{
"imports": {
"three": "https://esm.sh/three@0.177.0",
"three/addons/": "https://esm.sh/three@0.177.0/examples/jsm/",
"web-ifc": "https://unpkg.com/web-ifc@0.0.75/web-ifc-api.js",
"@thatopen/fragments": "https://esm.sh/@thatopen/fragments@3.3.1?external=three,web-ifc",
"@thatopen/components": "https://esm.sh/@thatopen/components@3.3.1?external=three,web-ifc,@thatopen/fragments"
}
}
</script>
</head>
<body>
<div id="toolbar">
<!-- Row 1: raw URL + FOV -->
<div class="trow">
<input id="url-input" class="ti" type="text"
placeholder="Paste ifc:// URL and press Enter, or fill fields below"
spellcheck="false">
<button id="clip-btn" class="tb-btn" title="Double-click model surface to add clipping plane">✂ clip</button>
<button id="clip-clear-btn" class="tb-btn" title="Remove all clipping planes" style="display:none">⊗ clips</button>
<div id="fov-wrap">
FOV <input id="fov-input" class="ti" type="number" min="10" max="120" step="1"
title="Field of view (degrees)">°
</div>
</div>
<!-- Row 2: structured fields -->
<div class="trow">
<div class="field" style="flex:3">
<label>repo</label>
<input id="repo-input" class="ti" type="text"
placeholder="host/org/repo or git@host/org/repo" spellcheck="false">
</div>
<div class="field" style="flex:2">
<label>ref</label>
<input id="ref-input" class="ti" type="text"
placeholder="heads/main or commit hash" spellcheck="false">
</div>
<div class="field" style="flex:2">
<label>path</label>
<input id="path-input" class="ti" type="text"
placeholder="model.ifc" spellcheck="false">
</div>
<div class="field" style="flex:1">
<label>selector</label>
<input id="selector-input" class="ti" type="text"
placeholder="IfcWall" spellcheck="false">
</div>
</div>
</div>
<div id="viewer"></div>
<div id="status"></div>
<script type="module">
import * as THREE from "three";
import * as OBC from "@thatopen/components";
import { parseIfcUrl, toRawUrl, buildIfcUrl as _buildIfcUrl } from "./viewer-url.js";
const params = new URLSearchParams(window.location.search);
const ifcUrl = params.get("url") ?? "";
const statusEl = document.getElementById("status");
const urlInput = document.getElementById("url-input");
const fovInput = document.getElementById("fov-input");
const toolbar = document.getElementById("toolbar");
const repoInput = document.getElementById("repo-input");
const refInput = document.getElementById("ref-input");
const pathInput = document.getElementById("path-input");
const selectorInput = document.getElementById("selector-input");
// Keep viewer below the full toolbar height.
const resizeObs = new ResizeObserver(() => {
document.documentElement.style.setProperty("--toolbar-h", toolbar.offsetHeight + "px");
});
resizeObs.observe(toolbar);
let cameraControls = null;
let threeCamera = null;
let activeClipper = null;
// Build an ifc:// URL from the structured form fields.
function buildIfcUrl() {
return _buildIfcUrl(
repoInput.value.trim(), refInput.value.trim(),
pathInput.value.trim(), selectorInput.value.trim()
);
}
// Populate structured fields from the current ifcUrl.
const parsed = parseIfcUrl(ifcUrl);
if (parsed) {
repoInput.value = parsed.repo;
refInput.value = parsed.ref;
pathInput.value = parsed.path;
selectorInput.value = parsed.selector;
}
urlInput.value = ifcUrl;
// -----------------------------------------------------------------------
// Navigate to the viewer with a different ifc:// URL.
// -----------------------------------------------------------------------
function loadUrl(url) {
const pageUrl = new URL(window.location.href);
pageUrl.searchParams.set("url", url);
window.location.href = pageUrl.toString();
}
urlInput.addEventListener("keydown", e => {
if (e.key === "Enter") { const v = urlInput.value.trim(); if (v) loadUrl(v); }
});
// Pressing Enter in any structured field rebuilds the URL and navigates.
for (const el of [repoInput, refInput, pathInput, selectorInput]) {
el.addEventListener("keydown", e => {
if (e.key === "Enter") { const u = buildIfcUrl(); if (u) loadUrl(u); }
});
}
// Disable camera controls while any input has focus.
function onInputFocus() { if (cameraControls) cameraControls.enabled = false; }
function onInputBlur() { if (cameraControls) cameraControls.enabled = true; }
const allInputs = [urlInput, fovInput, repoInput, refInput, pathInput, selectorInput];
for (const el of allInputs) {
el.addEventListener("focus", onInputFocus);
el.addEventListener("blur", onInputBlur);
el.addEventListener("pointerdown", e => e.stopPropagation());
el.addEventListener("mousedown", e => e.stopPropagation());
}
fovInput.addEventListener("change", () => {
if (!threeCamera?.isPerspectiveCamera) return;
const v = parseFloat(fovInput.value);
if (isNaN(v)) return;
threeCamera.fov = Math.max(10, Math.min(120, v));
threeCamera.updateProjectionMatrix();
syncCameraUrl(threeCamera);
});
// -----------------------------------------------------------------------
// Drag-and-drop: accept ifc:// URLs or viewer page URLs.
// -----------------------------------------------------------------------
document.body.addEventListener("dragover", e => {
e.preventDefault();
document.body.classList.add("drag-over");
});
document.body.addEventListener("dragleave", e => {
if (!e.relatedTarget) document.body.classList.remove("drag-over");
});
document.body.addEventListener("drop", e => {
e.preventDefault();
document.body.classList.remove("drag-over");
const candidates = [
e.dataTransfer.getData("text/uri-list"),
e.dataTransfer.getData("text/plain"),
];
for (const blob of candidates) {
for (const line of (blob || "").split(/\r?\n/)) {
const t = line.trim();
if (!t || t.startsWith("#")) continue;
if (t.startsWith("ifc://")) { loadUrl(t); return; }
try {
const u = new URL(t, window.location.href);
const p = u.searchParams.get("url");
if (p?.startsWith("ifc://")) { loadUrl(p); return; }
} catch { /* not a URL */ }
}
}
});
// -----------------------------------------------------------------------
// Coordinate transforms: IFC (Z-up) ↔ Three.js (Y-up).
// IFC → Three.js: (x, y, z) → (x, z, -y)
// Three.js → IFC: (x, y, z) → (x, -z, y)
// -----------------------------------------------------------------------
const toIfc = v => ({ x: v.x, y: -v.z, z: v.y });
const toThree = (x, y, z) => new THREE.Vector3(x, z, -y);
// -----------------------------------------------------------------------
// Sync camera viewpoint (in IFC coords) into the URL and toolbar row 1.
// The structured fields in row 2 are not affected by camera movement.
// -----------------------------------------------------------------------
function syncCameraUrl(camera) {
const pos = camera.position;
const dir = new THREE.Vector3();
camera.getWorldDirection(dir);
const up = camera.up;
const f = v => parseFloat(v.toFixed(4));
const ip = toIfc(pos), id = toIfc(dir), iu = toIfc(up);
const cameraParam = [
f(ip.x), f(ip.y), f(ip.z),
f(id.x), f(id.y), f(id.z),
f(iu.x), f(iu.y), f(iu.z),
].join(",");
const qIdx = ifcUrl.indexOf("?");
const base = qIdx < 0 ? ifcUrl : ifcUrl.slice(0, qIdx);
const qs = new URLSearchParams(qIdx < 0 ? "" : ifcUrl.slice(qIdx + 1));
qs.set("camera", cameraParam);
if (camera.isPerspectiveCamera) {
qs.set("fov", f(camera.fov).toString());
qs.delete("scale");
fovInput.value = Math.round(camera.fov);
} else {
qs.set("scale", f(camera.top - camera.bottom).toString());
qs.delete("fov");
fovInput.value = "";
}
// Replace original clip= params with current interactive planes.
qs.delete("clip");
if (activeClipper) {
for (const [, plane] of activeClipper.list) {
const n3 = plane.three.normal;
const p3 = n3.clone().multiplyScalar(-plane.three.constant);
const ni = toIfc(n3), pi = toIfc(p3);
qs.append("clip", [f(pi.x),f(pi.y),f(pi.z),f(ni.x),f(ni.y),f(ni.z)].join(","));
}
}
const newIfcUrl = base + "?" + qs.toString().replace(/%2C/g, ",").replace(/%2B/g, "+");
urlInput.value = newIfcUrl;
const pageUrl = new URL(window.location.href);
pageUrl.searchParams.set("url", newIfcUrl);
history.replaceState(null, "", pageUrl.toString());
}
// -----------------------------------------------------------------------
// Set up OBC.Clipper for interactive clipping planes.
// Seeds initial planes from the URL, wires toolbar buttons, and syncs
// plane state back to the URL on create/delete/drag.
// -----------------------------------------------------------------------
function setupClipper(components, world, clips) {
const clipper = components.get(OBC.Clipper);
clipper.setup();
activeClipper = clipper;
const clipBtn = document.getElementById("clip-btn");
const clipClearBtn = document.getElementById("clip-clear-btn");
const container = document.getElementById("viewer");
function updateClearBtn() {
clipClearBtn.style.display = clipper.list.size > 0 ? "" : "none";
}
// Seed planes from URL as interactive planes.
for (const [px, py, pz, nx, ny, nz] of clips) {
clipper.createFromNormalAndCoplanarPoint(
world, toThree(nx, ny, nz).normalize(), toThree(px, py, pz)
);
}
updateClearBtn();
// Double-click on model surface adds a plane when clip mode is active.
let clipMode = false;
clipBtn.addEventListener("click", () => {
clipMode = !clipMode;
clipBtn.classList.toggle("active", clipMode);
container.style.cursor = clipMode ? "crosshair" : "";
});
container.addEventListener("dblclick", async () => {
if (!clipMode) return;
await clipper.create(world);
syncCameraUrl(threeCamera);
updateClearBtn();
});
clipClearBtn.addEventListener("click", () => {
clipper.deleteAll();
syncCameraUrl(threeCamera);
updateClearBtn();
});
// Sync URL whenever a plane is dragged.
clipper.onAfterDrag.add(() => syncCameraUrl(threeCamera));
}
// -----------------------------------------------------------------------
// Apply selector= by isolating matching IFC elements.
// Supports simple type names and + union: "IfcWall+IfcSlab".
// Subtypes matched by prefix: IfcWall matches IfcWallStandardCase, etc.
// Attribute/property filters (.Name=, #id, [pset]) are not yet supported.
// -----------------------------------------------------------------------
async function applySelector(components, selectorStr) {
const userTypes = selectorStr
.split("+")
.map(g => g.trim().replace(/[.,\s#[].*/s, "").trim().toUpperCase())
.filter(Boolean);
if (!userTypes.length) return;
const classifier = components.get(OBC.Classifier);
await classifier.byCategory();
const categoryGroups = classifier.list.get("Categories");
if (!categoryGroups) return;
const matchingCategories = [];
for (const [cat] of categoryGroups) {
if (userTypes.some(t => cat === t || cat.startsWith(t)))
matchingCategories.push(cat);
}
if (!matchingCategories.length) return;
const matching = await classifier.find({ Categories: matchingCategories });
if (!matching || Object.keys(matching).length === 0) return;
const hider = components.get(OBC.Hider);
await hider.isolate(matching);
}
// -----------------------------------------------------------------------
// Place the camera from ifc:// URL camera=/fov=/scale= params.
// -----------------------------------------------------------------------
async function applyCameraParam(controls, camera) {
const qIdx = ifcUrl.indexOf("?");
if (qIdx < 0) return false;
const qs = new URLSearchParams(ifcUrl.slice(qIdx + 1));
const camStr = qs.get("camera");
if (!camStr) return false;
const v = camStr.split(",").map(Number);
if (v.length < 9 || v.some(isNaN)) return false;
const pos = toThree(v[0], v[1], v[2]);
const dir = toThree(v[3], v[4], v[5]);
const target = pos.clone().add(dir);
await controls.setLookAt(pos.x, pos.y, pos.z, target.x, target.y, target.z, false);
const fovStr = qs.get("fov");
if (fovStr && camera.isPerspectiveCamera) {
camera.fov = Math.max(10, Math.min(120, parseFloat(fovStr)));
camera.updateProjectionMatrix();
fovInput.value = Math.round(camera.fov);
}
return true;
}
// -----------------------------------------------------------------------
// Main
// -----------------------------------------------------------------------
async function main() {
if (!ifcUrl) {
statusEl.textContent = "Fill in the fields above and press Enter, or paste an ifc:// URL.";
return;
}
statusEl.textContent = "Loading…";
const components = new OBC.Components();
const worlds = components.get(OBC.Worlds);
const world = worlds.create();
const container = document.getElementById("viewer");
world.scene = new OBC.SimpleScene(components);
world.renderer = new OBC.SimpleRenderer(components, container);
world.camera = new OBC.OrthoPerspectiveCamera(components);
world.scene.setup();
components.init();
cameraControls = world.camera.controls;
threeCamera = world.camera.three;
// Firefox blocks cross-origin module workers; wrap in a blob URL.
const fragments = components.get(OBC.FragmentsManager);
const workerResp = await fetch(
"https://unpkg.com/@thatopen/fragments@3.3.1/dist/Worker/worker.mjs"
);
fragments.init(URL.createObjectURL(
new Blob([await workerResp.text()], { type: "application/javascript" })
));
const ifcLoader = components.get(OBC.IfcLoader);
await ifcLoader.setup({
autoSetWasm: false,
wasm: { path: "https://unpkg.com/web-ifc@0.0.75/", absolute: true },
});
statusEl.textContent = "Fetching IFC file…";
let buffer;
try {
const resp = await fetch(toRawUrl(ifcUrl));
if (!resp.ok) throw new Error(`HTTP ${resp.status} ${resp.statusText}`);
buffer = new Uint8Array(await resp.arrayBuffer());
} catch (err) {
statusEl.textContent = `Fetch error: ${err.message}`;
return;
}
statusEl.textContent = "Parsing IFC…";
try {
const model = await ifcLoader.load(buffer, true, "model");
world.scene.three.add(model.object);
const hasCam = await applyCameraParam(cameraControls, threeCamera);
if (!hasCam && !model.box.isEmpty()) {
await cameraControls.fitToBox(model.box, false);
}
model.useCamera(threeCamera);
const qIdxPost = ifcUrl.indexOf("?");
const qsPost = new URLSearchParams(
qIdxPost < 0 ? "" : ifcUrl.slice(qIdxPost + 1)
);
const clips = qsPost.getAll("clip")
.map(s => s.split(",").map(Number))
.filter(v => v.length === 6 && !v.some(isNaN));
setupClipper(components, world, clips);
const selectorStr = qsPost.get("selector") ?? "";
if (selectorStr) {
statusEl.textContent = "Applying selector…";
await applySelector(components, selectorStr);
}
await fragments.core.update(true);
syncCameraUrl(threeCamera);
cameraControls.addEventListener("rest", () => syncCameraUrl(threeCamera));
statusEl.textContent = "";
} catch (err) {
statusEl.textContent = `Render error: ${err.message}`;
console.error(err);
}
}
main();
</script>
</body>
</html>