import { Suspense, useRef, useMemo, useEffect, type ReactNode } from 'react';
import { Canvas, useThree, useFrame } from '@react-three/fiber';
import { OrbitControls, useGLTF, Grid, Html, Line } from '@react-three/drei';
import { Loader2 } from 'lucide-react';
import * as THREE from 'three';
import { useModelStore, type SceneModel } from '@/stores/useModelStore';
import { findNearestVertex, detectHoleAtFace, findNearestEdgeSegment, detectCircularEdgeAtPoint } from './SmartMeasure';
import { registerModelLocalGroup, unregisterModelLocalGroup } from '@/lib/modelTransforms';
interface ModelViewerProps {
url?: string; // legacy, ignored — uses store.models
}
function isPickableModelMesh(obj: THREE.Object3D): obj is THREE.Mesh {
if (!(obj instanceof THREE.Mesh)) return false;
if (obj.userData.__edgeLine) return false;
if (obj.geometry instanceof THREE.SphereGeometry) return false;
if (obj.geometry instanceof THREE.RingGeometry) return false;
if (obj.geometry instanceof THREE.PlaneGeometry) return false;
return true;
}
/** Walk up the parent chain until we find a node tagged as `ifcElement`.
* Falls back to the clicked mesh so older/demo GLBs without IFC metadata
* still support selection/highlight. */
export function findElementRoot(obj: THREE.Object3D | null): THREE.Object3D | null {
const fallback = isPickableModelMesh(obj as THREE.Object3D) ? obj : null;
let cur: THREE.Object3D | null = obj;
while (cur) {
if (cur.userData?.ifcElement) return cur;
cur = cur.parent;
}
return fallback;
}
function hasIfcAncestor(obj: THREE.Object3D): boolean {
let cur = obj.parent;
while (cur) {
if (cur.userData?.ifcElement) return true;
cur = cur.parent;
}
return false;
}
/** Stable key for an element across reloads: prefers ifcId, falls back to name. */
export function elementKey(modelId: string, el: THREE.Object3D): string {
const id = el.userData?.ifcId ?? el.name ?? el.uuid;
return `${modelId}:${id}`;
}
/** Globally accessible ref to the active R3F scene (set by SceneRefCapture). */
export const sceneRef: { current: THREE.Scene | null } = { current: null };
function SceneRefCapture() {
const { scene } = useThree();
useEffect(() => {
sceneRef.current = scene;
return () => { if (sceneRef.current === scene) sceneRef.current = null; };
}, [scene]);
return null;
}
function LoadingFallback() {
return (
Carregando modelo…
);
}
function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive: boolean }) {
const { scene: rawScene } = useGLTF(sceneModel.url);
// Clone scene per instance so multiple GLBModels with same url don't share materials/transforms
const scene = useMemo(() => rawScene.clone(true), [rawScene]);
const ref = useRef(null);
const opacity = useModelStore((s) => s.opacity);
const renderMode = useModelStore((s) => s.renderMode);
const wireframeColor = useModelStore((s) => s.wireframeColor);
const wireframeThickness = useModelStore((s) => s.wireframeThickness);
const edgeThresholdAngle = useModelStore((s) => s.edgeThresholdAngle);
const checklist = useModelStore((s) => s.checklist);
const setActive = useModelStore((s) => s.setActiveModel);
const selectionMode = useModelStore((s) => s.selectionMode);
const fineTuning = sceneModel.fineTuning;
const modelInfo = useMemo(() => {
const box = new THREE.Box3().setFromObject(scene);
const size = new THREE.Vector3();
const center = new THREE.Vector3();
box.getSize(size);
box.getCenter(center);
return { size, center };
}, [scene]);
const originalColors = useRef>(new Map());
useEffect(() => {
const hasRejected = checklist.some(i => i.status === 'rejected');
const allApproved = checklist.every(i => i.status === 'approved');
scene.traverse((child) => {
if (child instanceof THREE.Mesh) {
if (Array.isArray(child.material)) {
child.material = child.material.map(m => m.clone());
} else {
child.material = child.material.clone();
}
const toRemove: THREE.Object3D[] = [];
child.children.forEach(c => {
if (c.userData.__edgeLine) toRemove.push(c);
});
toRemove.forEach(c => {
if (c instanceof THREE.LineSegments) {
c.geometry.dispose();
(c.material as THREE.Material).dispose();
}
child.remove(c);
});
const materials = Array.isArray(child.material) ? child.material : [child.material];
materials.forEach((mat: THREE.Material) => {
if (mat instanceof THREE.MeshStandardMaterial) {
if (!originalColors.current.has(mat)) {
originalColors.current.set(mat, mat.color.clone());
}
if (renderMode === 'edges') {
mat.visible = false;
} else {
mat.visible = true;
mat.transparent = opacity < 1;
mat.opacity = opacity;
mat.wireframe = renderMode === 'wireframe';
if (renderMode === 'wireframe') {
mat.wireframeLinewidth = wireframeThickness;
mat.color.set(wireframeColor);
} else if (hasRejected) {
mat.color.setHSL(0, 0.7, 0.5);
} else if (allApproved) {
mat.color.setHSL(0.38, 0.7, 0.45);
} else {
// Tint with the per-model color (subtle)
mat.color.set(sceneModel.color);
}
}
mat.needsUpdate = true;
}
});
if (renderMode === 'edges' && child.geometry) {
const edgesGeo = new THREE.EdgesGeometry(child.geometry, edgeThresholdAngle);
const lineMat = new THREE.LineBasicMaterial({
color: wireframeColor,
linewidth: wireframeThickness,
});
const lineSegments = new THREE.LineSegments(edgesGeo, lineMat);
lineSegments.userData.__edgeLine = true;
child.add(lineSegments);
}
}
});
}, [scene, opacity, renderMode, checklist, wireframeColor, wireframeThickness, edgeThresholdAngle, sceneModel.color]);
const rotXRad = (fineTuning.rotX * Math.PI) / 180;
const rotYRad = (fineTuning.rotY * Math.PI) / 180;
const rotZRad = (fineTuning.rotZ * Math.PI) / 180;
const s = fineTuning.scale ?? 1;
const scaleRatio = useModelStore((st) => st.scaleRatio);
const renderFactor = scaleRatio?.factor ?? 1;
if (!sceneModel.visible) return null;
// Determine dominant local axis of the model (longest bbox side) for axial roll
const dominantAxis: 'x' | 'y' | 'z' =
modelInfo.size.x >= modelInfo.size.y && modelInfo.size.x >= modelInfo.size.z
? 'x'
: modelInfo.size.y >= modelInfo.size.z
? 'y'
: 'z';
return (
{
e.stopPropagation();
if ((e.delta ?? 0) > 4) return;
if (selectionMode) {
const element = findElementRoot(e.object);
if (element) {
useModelStore.getState().toggleElementSelection(elementKey(sceneModel.id, element));
}
return;
}
setActive(sceneModel.id);
}}
userData={{ modelId: sceneModel.id, dominantAxis }}
>
{/* Translation */}
{/* Rotation + scale around the geometry center */}
{/* Shift geometry so its center sits at the parent's origin (pivot = center).
This is the local frame where measurement points are stored, so measurements
follow the model when posX/Y/Z or rotX/Y/Z change in "Posicionar" mode. */}
);
}
/** Innermost local frame of a model. Registers itself in the global model
* registry so the store can convert world points to this group's local frame. */
function ModelLocalFrame({
modelId,
center,
children,
}: {
modelId: string;
center: THREE.Vector3;
children: ReactNode;
}) {
const ref = useRef(null);
useEffect(() => {
const g = ref.current;
if (!g) return;
registerModelLocalGroup(modelId, g);
return () => unregisterModelLocalGroup(modelId, g);
}, [modelId]);
return (
{children}
);
}
function SceneModels() {
const models = useModelStore((s) => s.models);
const activeId = useModelStore((s) => s.activeModelId);
return (
<>
{models.map((m) => (
))}
);
}
/** Sphere marker at a 3D point — scaled per-frame to keep constant screen size.
* Compensates for any cumulative parent world scale so it stays the same screen
* size whether mounted in world space or inside a transformed model group. */
function PointMarker({ position, color = '#e8a838' }: { position: [number, number, number]; color?: string }) {
const ref = useRef(null);
const { camera, size } = useThree();
const tmpVec = useMemo(() => new THREE.Vector3(), []);
const worldPos = useMemo(() => new THREE.Vector3(), []);
useFrame(() => {
if (!ref.current) return;
ref.current.getWorldPosition(worldPos);
const dist = camera.position.distanceTo(worldPos);
const perspCam = camera as THREE.PerspectiveCamera;
const fov = (perspCam.fov ?? 50) * (Math.PI / 180);
const worldPerPixel = (2 * dist * Math.tan(fov / 2)) / size.height;
// Target: ~6 px radius (radius = 1 in base geometry → scale = 6*wpp).
const targetWorld = Math.max(0.0005, 6 * worldPerPixel);
// Divide by parent world scale so the final world size matches `targetWorld`.
const parentScale = ref.current.parent ? ref.current.parent.getWorldScale(tmpVec).x || 1 : 1;
ref.current.scale.setScalar(targetWorld / parentScale);
});
return (
);
}
/** Snap ring indicator — scaled per-frame */
function SnapRing({ position, color = '#eab308' }: { position: [number, number, number]; color?: string }) {
const ref = useRef(null);
const { camera, size } = useThree();
useFrame(() => {
if (!ref.current) return;
ref.current.lookAt(camera.position);
const dist = camera.position.distanceTo(ref.current.position);
const perspCam = camera as THREE.PerspectiveCamera;
const fov = (perspCam.fov ?? 50) * (Math.PI / 180);
const worldPerPixel = (2 * dist * Math.tan(fov / 2)) / size.height;
const s = Math.max(0.0008, 10 * worldPerPixel);
ref.current.scale.setScalar(s);
});
return (
);
}
/** Computes a distanceFactor that keeps an Html label roughly constant on screen */
function useLabelDistanceFactor(position: [number, number, number]): number {
const { camera, size } = useThree();
const v = useMemo(() => new THREE.Vector3(), []);
const ref = useRef(1);
useFrame(() => {
v.set(position[0], position[1], position[2]);
const dist = camera.position.distanceTo(v);
const perspCam = camera as THREE.PerspectiveCamera;
const fov = (perspCam.fov ?? 50) * (Math.PI / 180);
const worldPerPixel = (2 * dist * Math.tan(fov / 2)) / size.height;
// distanceFactor scales the html so it stays ~140 px tall at this distance
ref.current = Math.max(0.05, worldPerPixel * 140);
});
return ref.current;
}
function MeasurementLabel({ position, text, variant, fixed = false }: { position: [number, number, number]; text: string; variant: 'success' | 'primary' | 'accent'; fixed?: boolean }) {
const dfDynamic = useLabelDistanceFactor(position);
const df = fixed ? dfDynamic : 1.5;
const borderClass = variant === 'success'
? 'border-success/60'
: variant === 'accent'
? 'border-amber-400/70'
: 'border-primary/60';
const textClass = variant === 'success'
? 'text-success'
: variant === 'accent'
? 'text-amber-400'
: 'text-primary';
return (
{text}
);
}
/** Renders a single measurement's geometry + label.
* Coordinates are interpreted in whichever frame the component is mounted in. */
function MeasurementGraphic({ m }: { m: import('@/stores/useModelStore').Measurement }) {
const a: [number, number, number] = [m.pointA.x, m.pointA.y, m.pointA.z];
const b: [number, number, number] = [m.pointB.x, m.pointB.y, m.pointB.z];
const mid: [number, number, number] = [
(a[0] + b[0]) / 2,
(a[1] + b[1]) / 2,
(a[2] + b[2]) / 2,
];
if (m.kind === 'hole') {
return (
);
}
if (m.kind === 'edge') {
return (
);
}
return (
);
}
/** Renders measurements attached to a given model, in that model's local frame.
* Mounted inside GLBModel so they follow the model when it is repositioned. */
function ModelMeasurements({ modelId }: { modelId: string }) {
const measurements = useModelStore((s) => s.measurements);
const attached = measurements.filter((m) => m.modelId === modelId);
if (attached.length === 0) return null;
return (
<>
{attached.map((m) => (
))}
);
}
/** Renders snap indicator, hover tooltip, pending point and any *legacy*
* world-frame measurements that aren't attached to a specific model. */
function MeasurementOverlay() {
const measurements = useModelStore((s) => s.measurements);
const measurePoints = useModelStore((s) => s.measurePoints);
const snapPoint = useModelStore((s) => s.snapPoint);
const hoverInfo = useModelStore((s) => s.hoverInfo);
const measureMode = useModelStore((s) => s.measureMode);
return (
<>
{/* Snap indicator */}
{measureMode && snapPoint && (
)}
{/* Hover auto-detect tooltip (works both inside and outside measure mode) */}
{hoverInfo && (
)}
{/* Pending first point (always in world coords) */}
{measurePoints.length === 1 && (
)}
{/* Legacy world-frame measurements (no modelId) */}
{measurements.filter((m) => !m.modelId).map((m) => (
))}
);
}
/** Smart vertex snap on pointer move */
function SmartSnapHandler() {
const { camera, scene, gl } = useThree();
const measureMode = useModelStore((s) => s.measureMode);
const setSnapPoint = useModelStore((s) => s.setSnapPoint);
const raycaster = useMemo(() => new THREE.Raycaster(), []);
const mouse = useMemo(() => new THREE.Vector2(), []);
const mouseRef = useRef({ x: 0, y: 0 });
useEffect(() => {
const onMove = (e: MouseEvent) => {
const rect = gl.domElement.getBoundingClientRect();
mouseRef.current.x = e.clientX - rect.left;
mouseRef.current.y = e.clientY - rect.top;
mouse.x = (mouseRef.current.x / rect.width) * 2 - 1;
mouse.y = -(mouseRef.current.y / rect.height) * 2 + 1;
};
gl.domElement.addEventListener('pointermove', onMove);
return () => gl.domElement.removeEventListener('pointermove', onMove);
}, [gl, mouse]);
useFrame(() => {
if (!measureMode) {
setSnapPoint(null);
return;
}
const st = useModelStore.getState();
// Highest priority: a live hover label pointing at a hole → snap to its center
if (st.hoverInfo?.type === 'hole') {
const [hx, hy, hz] = st.hoverInfo.position;
setSnapPoint({ x: hx, y: hy, z: hz });
return;
}
raycaster.setFromCamera(mouse, camera);
const intersects = raycaster.intersectObjects(scene.children, true);
const hit = intersects.find(i => {
const obj = i.object;
if (obj instanceof THREE.GridHelper) return false;
if (obj instanceof THREE.Mesh && obj.geometry instanceof THREE.SphereGeometry) return false;
if (obj instanceof THREE.Mesh && obj.geometry instanceof THREE.RingGeometry) return false;
if (obj.userData.__edgeLine) return false;
return obj instanceof THREE.Mesh;
});
const canvas = gl.domElement;
const canvasW = canvas.clientWidth;
const canvasH = canvas.clientHeight;
// Cursor in screen px (mouse is in NDC [-1, 1])
const cursorX = (mouse.x * 0.5 + 0.5) * canvasW;
const cursorY = (-mouse.y * 0.5 + 0.5) * canvasH;
// Snap to centers of saved hole measurements within 20 px on screen
const holeSnapPxThreshold = 20;
let bestHoleDist = Infinity;
let bestHole: { x: number; y: number; z: number } | null = null;
const proj = new THREE.Vector3();
for (const m of st.measurements) {
if (m.kind !== 'hole') continue;
proj.set(m.pointA.x, m.pointA.y, m.pointA.z).project(camera);
const sx = (proj.x * 0.5 + 0.5) * canvasW;
const sy = (-proj.y * 0.5 + 0.5) * canvasH;
const d = Math.hypot(sx - cursorX, sy - cursorY);
if (d < bestHoleDist && d <= holeSnapPxThreshold) {
bestHoleDist = d;
bestHole = { x: m.pointA.x, y: m.pointA.y, z: m.pointA.z };
}
}
if (bestHole) {
setSnapPoint(bestHole);
return;
}
if (hit && hit.object instanceof THREE.Mesh) {
const snap = findNearestVertex(
hit.object, hit.point, camera,
{ width: canvasW, height: canvasH },
10
);
if (snap) {
setSnapPoint({ x: snap.x, y: snap.y, z: snap.z });
} else {
setSnapPoint(null);
}
} else {
setSnapPoint(null);
}
});
return null;
}
/** Hover detector for auto-detect hole diameter and edge length.
* Runs in BOTH view mode and measure mode. Outside measure mode the label
* auto-hides after 4s; in measure mode it persists until the user clicks
* (registering it as a saved measurement) or moves the mouse significantly. */
function HoverDetector() {
const { camera, scene, gl } = useThree();
const setHoverInfo = useModelStore((s) => s.setHoverInfo);
const raycaster = useMemo(() => new THREE.Raycaster(), []);
const mouse = useMemo(() => new THREE.Vector2(), []);
const hoverTimer = useRef | null>(null);
const hideTimer = useRef | null>(null);
const lastHitKey = useRef('');
useEffect(() => {
const clearTimers = () => {
if (hoverTimer.current) { clearTimeout(hoverTimer.current); hoverTimer.current = null; }
if (hideTimer.current) { clearTimeout(hideTimer.current); hideTimer.current = null; }
};
const onMove = (e: MouseEvent) => {
const rect = gl.domElement.getBoundingClientRect();
mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;
mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;
raycaster.setFromCamera(mouse, camera);
const intersects = raycaster.intersectObjects(scene.children, true);
const hit = intersects.find(i => {
const obj = i.object;
if (obj instanceof THREE.GridHelper) return false;
if (obj instanceof THREE.Mesh && obj.geometry instanceof THREE.SphereGeometry) return false;
if (obj instanceof THREE.Mesh && obj.geometry instanceof THREE.RingGeometry) return false;
if (obj.userData.__edgeLine) return false;
return obj instanceof THREE.Mesh;
});
if (!hit || !(hit.object instanceof THREE.Mesh)) {
lastHitKey.current = '';
setHoverInfo(null);
clearTimers();
return;
}
// Stability check – same approximate position for debounce (~3 mm)
const key = `${hit.point.x.toFixed(3)},${hit.point.y.toFixed(3)},${hit.point.z.toFixed(3)}`;
if (key === lastHitKey.current) return; // timer already running
lastHitKey.current = key;
setHoverInfo(null);
clearTimers();
hoverTimer.current = setTimeout(() => {
if (!(hit.object instanceof THREE.Mesh)) return;
const canvas = gl.domElement;
const canvasSize = { width: canvas.clientWidth, height: canvas.clientHeight };
// 1) Try circle fit from edge vertices around the hit (catches holes on flat faces)
const circ = detectCircularEdgeAtPoint(hit.object, hit.point, camera, canvasSize, 50);
if (circ) {
setHoverInfo({
type: 'hole',
position: [circ.center.x, circ.center.y, circ.center.z],
value: circ.diameterMM,
});
} else if (hit.faceIndex !== undefined && (() => {
const hole = detectHoleAtFace(hit.object, hit.faceIndex);
if (hole) {
setHoverInfo({
type: 'hole',
position: [hole.center.x, hole.center.y, hole.center.z],
value: hole.diameterMM,
});
return true;
}
return false;
})()) {
// handled inside IIFE
} else {
// 3) Edge length
const edge = findNearestEdgeSegment(hit.object, hit.point, camera, canvasSize, 15);
if (edge) {
setHoverInfo({
type: 'edge',
position: [edge.midpoint.x, edge.midpoint.y, edge.midpoint.z],
value: edge.lengthMM,
endpoints: {
a: { x: edge.a.x, y: edge.a.y, z: edge.a.z },
b: { x: edge.b.x, y: edge.b.y, z: edge.b.z },
},
});
} else {
setHoverInfo(null);
return;
}
}
// Outside measure mode, auto-hide after 4 s
const inMeasure = useModelStore.getState().measureMode;
if (!inMeasure) {
hideTimer.current = setTimeout(() => setHoverInfo(null), 4000);
}
}, 1000);
};
const onLeave = () => {
lastHitKey.current = '';
setHoverInfo(null);
clearTimers();
};
gl.domElement.addEventListener('pointermove', onMove);
gl.domElement.addEventListener('pointerleave', onLeave);
return () => {
gl.domElement.removeEventListener('pointermove', onMove);
gl.domElement.removeEventListener('pointerleave', onLeave);
clearTimers();
};
}, [camera, scene, gl, raycaster, mouse, setHoverInfo]);
return null;
}
/** Pointer handler for measurement mode – uses snap point when available.
* Uses pointerdown/up with a drag gate so accidental drags don't add points. */
function MeasureClickHandler() {
const { camera, scene, gl } = useThree();
const measureMode = useModelStore((s) => s.measureMode);
const raycaster = useMemo(() => new THREE.Raycaster(), []);
const mouse = useMemo(() => new THREE.Vector2(), []);
useEffect(() => {
if (!measureMode) {
gl.domElement.style.cursor = 'grab';
return;
}
gl.domElement.style.cursor = 'crosshair';
const canvas = gl.domElement;
let downX = 0, downY = 0, downBtn = 0;
let armed = false;
const onDown = (e: PointerEvent) => {
if (e.button !== 0) { armed = false; return; }
downX = e.clientX;
downY = e.clientY;
downBtn = e.button;
armed = true;
};
const onUp = (e: PointerEvent) => {
if (!armed || e.button !== downBtn) return;
armed = false;
const dx = e.clientX - downX;
const dy = e.clientY - downY;
if (Math.hypot(dx, dy) > 4) return; // it was a drag, not a click
const st = useModelStore.getState();
if (!st.measureMode) return;
// If a hover label is currently shown (hole diameter or edge length),
// a click registers it as a saved measurement.
if (st.hoverInfo) {
st.registerHoverMeasurement(st.hoverInfo);
return;
}
// Prefer snap (vertex snap, or hole-center snap from SmartSnapHandler)
if (st.snapPoint) {
st.addMeasurePoint({ x: st.snapPoint.x, y: st.snapPoint.y, z: st.snapPoint.z });
return;
}
const rect = canvas.getBoundingClientRect();
mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;
mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;
raycaster.setFromCamera(mouse, camera);
const intersects = raycaster.intersectObjects(scene.children, true);
const hit = intersects.find(i => {
const obj = i.object;
if (!(obj instanceof THREE.Mesh)) return false;
if (obj.userData.__edgeLine) return false;
if (obj.geometry instanceof THREE.SphereGeometry) return false;
if (obj.geometry instanceof THREE.RingGeometry) return false;
if (obj.geometry instanceof THREE.PlaneGeometry) return false;
return true;
});
if (hit) {
st.addMeasurePoint({ x: hit.point.x, y: hit.point.y, z: hit.point.z });
}
};
const onKey = (e: KeyboardEvent) => {
const st = useModelStore.getState();
if (!st.measureMode) return;
if (e.key === 'Escape') {
if (st.measurePoints.length > 0) st.undoLastMeasurePoint();
} else if ((e.key === 'z' || e.key === 'Z') && !e.ctrlKey && !e.metaKey) {
st.undoLastMeasurement();
}
};
canvas.addEventListener('pointerdown', onDown);
canvas.addEventListener('pointerup', onUp);
window.addEventListener('keydown', onKey);
return () => {
canvas.removeEventListener('pointerdown', onDown);
canvas.removeEventListener('pointerup', onUp);
window.removeEventListener('keydown', onKey);
gl.domElement.style.cursor = 'grab';
};
}, [measureMode, camera, scene, gl, raycaster, mouse]);
return null;
}
/** Pointer handler for element-selection mode. Clicks an IFC element, sub-mesh
* of a non-IFC model, or any pickable mesh group. Toggles selection in store. */
function SelectionHandler() {
const { camera, scene, gl } = useThree();
const selectionMode = useModelStore((s) => s.selectionMode);
const raycaster = useMemo(() => new THREE.Raycaster(), []);
const mouse = useMemo(() => new THREE.Vector2(), []);
useEffect(() => {
if (!selectionMode) return;
const prevCursor = gl.domElement.style.cursor;
gl.domElement.style.cursor = 'cell';
const canvas = gl.domElement;
const onR3FMiss = (event: Event) => {
const detail = (event as CustomEvent).detail;
if (!detail || detail.button !== 0) return;
const rect = canvas.getBoundingClientRect();
mouse.x = ((detail.clientX - rect.left) / rect.width) * 2 - 1;
mouse.y = -((detail.clientY - rect.top) / rect.height) * 2 + 1;
raycaster.setFromCamera(mouse, camera);
const intersects = raycaster.intersectObjects(scene.children, true);
const hit = intersects.find((i) => isPickableModelMesh(i.object));
if (!hit) return;
const element = findElementRoot(hit.object);
const modelId = useModelStore.getState().activeModelId;
if (!modelId || !element) return;
useModelStore.getState().toggleElementSelection(elementKey(modelId, element));
};
canvas.addEventListener('tsxr-selection-miss', onR3FMiss);
return () => {
canvas.removeEventListener('tsxr-selection-miss', onR3FMiss);
gl.domElement.style.cursor = prevCursor;
};
}, [selectionMode, camera, scene, gl, raycaster, mouse]);
return null;
}
/** Walks the scene each time visibility/selection state changes and applies
* per-element visibility + emissive highlight for selected elements. */
function VisibilityApplier() {
const { scene } = useThree();
const nonce = useModelStore((s) => s.visibilityNonce);
const models = useModelStore((s) => s.models);
const opacity = useModelStore((s) => s.opacity);
const renderMode = useModelStore((s) => s.renderMode);
const checklist = useModelStore((s) => s.checklist);
useEffect(() => {
const st = useModelStore.getState();
const { hiddenElementKeys, isolatedElementKeys, selectedElementKeys } = st;
scene.traverse((root) => {
const modelId = root.userData?.modelId as string | undefined;
if (!modelId) return;
root.traverse((el) => {
if (!el.userData?.ifcElement && !(isPickableModelMesh(el) && !hasIfcAncestor(el))) return;
const key = elementKey(modelId, el);
const hidden = hiddenElementKeys.has(key);
const isolated = isolatedElementKeys ? !isolatedElementKeys.has(key) : false;
el.visible = !(hidden || isolated);
const selected = selectedElementKeys.has(key);
el.traverse((m) => {
if (!(m instanceof THREE.Mesh)) return;
if (selected) {
if (!m.userData.__origMaterial) {
m.userData.__origMaterial = m.material;
const src = Array.isArray(m.material) ? m.material[0] : m.material;
const cloned = (src as THREE.Material).clone() as THREE.MeshStandardMaterial;
if (cloned instanceof THREE.MeshStandardMaterial) {
cloned.color.set('#f59e0b');
cloned.emissive.set('#f59e0b');
cloned.emissiveIntensity = 0.8;
cloned.needsUpdate = true;
}
m.material = cloned;
}
} else if (m.userData.__origMaterial) {
// Dispose the cloned highlight material
const cur = Array.isArray(m.material) ? m.material[0] : m.material;
(cur as THREE.Material)?.dispose?.();
m.material = m.userData.__origMaterial as THREE.Material;
delete m.userData.__origMaterial;
}
});
});
});
}, [scene, nonce, models, opacity, renderMode, checklist]);
return null;
}
function GridLayer() {
const showGrid = useModelStore((s) => s.showGrid);
const gridY = useModelStore((s) => s.gridY);
if (!showGrid) return null;
return (
);
}
/** Computes min Y of all visible models and updates store gridY when auto-follow is on. */
function GridAutoFollower() {
const models = useModelStore((s) => s.models);
const { scene } = useThree();
useEffect(() => {
const auto = useModelStore.getState().gridAutoFollow;
if (!auto) return;
// Defer to next tick so models have rendered/positioned
const id = setTimeout(() => {
if (!useModelStore.getState().gridAutoFollow) return;
const box = new THREE.Box3();
let has = false;
scene.traverse((obj) => {
if (obj instanceof THREE.Mesh && obj.geometry) {
// Skip helpers (markers, rings)
if (obj.geometry instanceof THREE.SphereGeometry) return;
if (obj.geometry instanceof THREE.RingGeometry) return;
if (obj.userData.__edgeLine) return;
obj.updateWorldMatrix(true, false);
const b = new THREE.Box3().setFromObject(obj);
if (isFinite(b.min.y)) {
if (!has) { box.copy(b); has = true; }
else box.union(b);
}
}
});
if (has) {
useModelStore.setState({ gridY: box.min.y - 0.005 });
}
}, 100);
return () => clearTimeout(id);
}, [models, scene]);
return null;
}
/** Mouse drag handler for desktop "Posicionar" mode: translates/rotates the active model. */
function PositionDragHandler() {
const { camera, gl, scene } = useThree();
const positionMode = useModelStore((s) => s.positionMode);
const activeId = useModelStore((s) => s.activeModelId);
useEffect(() => {
if (!positionMode) {
gl.domElement.style.cursor = 'grab';
return;
}
gl.domElement.style.cursor = 'move';
const canvas = gl.domElement;
let dragging = false;
let button = 0;
let shiftKey = false;
let lastX = 0;
let lastY = 0;
let pixelsPerWorldUnit = 1;
const computePixelScale = () => {
const st = useModelStore.getState();
const active = st.models.find((m) => m.id === st.activeModelId);
if (!active) return;
// Find the model's group position (approx world): use renderFactor + fineTuning pos
const factor = st.scaleRatio?.factor ?? 1;
const wp = new THREE.Vector3(
active.fineTuning.posX * factor,
active.fineTuning.posY * factor,
active.fineTuning.posZ * factor,
);
const dist = camera.position.distanceTo(wp);
const perspCam = camera as THREE.PerspectiveCamera;
const fov = (perspCam.fov ?? 50) * (Math.PI / 180);
const worldPerPixel = (2 * dist * Math.tan(fov / 2)) / canvas.clientHeight;
pixelsPerWorldUnit = worldPerPixel; // world units per pixel
};
const onDown = (e: PointerEvent) => {
const st = useModelStore.getState();
if (!st.positionMode || !st.activeModelId) return;
dragging = true;
button = e.button;
shiftKey = e.shiftKey;
lastX = e.clientX;
lastY = e.clientY;
computePixelScale();
(e.target as Element).setPointerCapture?.(e.pointerId);
e.preventDefault();
};
const onMove = (e: PointerEvent) => {
if (!dragging) return;
const st = useModelStore.getState();
const active = st.models.find((m) => m.id === st.activeModelId);
if (!active) return;
const dx = e.clientX - lastX;
const dy = e.clientY - lastY;
lastX = e.clientX;
lastY = e.clientY;
shiftKey = e.shiftKey;
const ft = active.fineTuning;
const factor = st.scaleRatio?.factor ?? 1;
if (button === 2) {
// Right button: rotate
const sens = 0.4; // deg per pixel
if (shiftKey) {
useModelStore.getState().setFineTuning({ rotZ: ft.rotZ + dx * sens });
} else {
useModelStore.getState().setFineTuning({
rotY: ft.rotY + dx * sens,
rotX: ft.rotX + dy * sens,
});
}
} else if (button === 1) {
// Middle button (wheel): roll around the piece's own longitudinal axis
const sens = 0.5;
let dominant: 'x' | 'y' | 'z' = 'x';
scene.traverse((o) => {
if (o.userData?.modelId === active.id && o.userData?.dominantAxis) {
dominant = o.userData.dominantAxis;
}
});
const delta = dx * sens;
if (dominant === 'x') {
useModelStore.getState().setFineTuning({ rotX: ft.rotX + delta });
} else if (dominant === 'y') {
useModelStore.getState().setFineTuning({ rotY: ft.rotY + delta });
} else {
useModelStore.getState().setFineTuning({ rotZ: ft.rotZ + delta });
}
} else if (button === 0 && shiftKey) {
// Shift+left: depth (Z in camera space)
const worldDelta = dy * pixelsPerWorldUnit;
const camDir = new THREE.Vector3();
camera.getWorldDirection(camDir);
const move = camDir.multiplyScalar(worldDelta).divideScalar(factor);
useModelStore.getState().setFineTuning({
posX: ft.posX + move.x,
posY: ft.posY + move.y,
posZ: ft.posZ + move.z,
});
} else {
// Left: translate in camera plane
const right = new THREE.Vector3();
const up = new THREE.Vector3();
camera.matrixWorld.extractBasis(right, up, new THREE.Vector3());
const worldDX = dx * pixelsPerWorldUnit;
const worldDY = -dy * pixelsPerWorldUnit;
const move = right.multiplyScalar(worldDX).add(up.multiplyScalar(worldDY)).divideScalar(factor);
useModelStore.getState().setFineTuning({
posX: ft.posX + move.x,
posY: ft.posY + move.y,
posZ: ft.posZ + move.z,
});
}
};
const onUp = (e: PointerEvent) => {
dragging = false;
(e.target as Element).releasePointerCapture?.(e.pointerId);
};
const onContext = (e: MouseEvent) => e.preventDefault();
canvas.addEventListener('pointerdown', onDown);
canvas.addEventListener('pointermove', onMove);
canvas.addEventListener('pointerup', onUp);
canvas.addEventListener('pointercancel', onUp);
canvas.addEventListener('contextmenu', onContext);
return () => {
canvas.removeEventListener('pointerdown', onDown);
canvas.removeEventListener('pointermove', onMove);
canvas.removeEventListener('pointerup', onUp);
canvas.removeEventListener('pointercancel', onUp);
canvas.removeEventListener('contextmenu', onContext);
gl.domElement.style.cursor = 'grab';
};
}, [positionMode, activeId, camera, gl, scene]);
return null;
}
export function ModelViewerCanvas({ url }: ModelViewerProps) {
const positionMode = useModelStore((s) => s.positionMode);
const measureMode = useModelStore((s) => s.measureMode);
const selectionMode = useModelStore((s) => s.selectionMode);
return (
);
}