feat(annotations): draw on the world by hand (#547)

Supersedes #235 by @cora-fresh-labs, ported onto the current component layout with fixes from review.

Verified before merge: format, package boundaries, unit suite, build, and the browser tracking suite; a browser harness for the change where one applies; adversarial review applied.

Future work (not in this PR): hand-drawn marks do not persist across a reload today, and neither do spoken annotations; there is no storage layer for marks. The natural home is Scenes: a drawing that belongs to a shot and persists per shot, so a scene animation can carry its own marks. Needs an owner.
Co-authored-by: Clint Borle <[email protected]>
This commit is contained in:
Bilawal Sidhu authored and GitHub committed 2026-09-14 19:59:26 -05:00
1 parent 409e27d7f9
commit 9fc8d1966b
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@@ -1,7 +1,8 @@
import { defaultGeospatial } from '../search/defaults.js';
import * as Cesium from 'cesium';
import { holdContinuousRender, releaseContinuousRender } from '../renderGovernor.js';
import { isRateLimitedOutcome, resolveAnnotationTarget } from './annotationResolver.js';
import { isRateLimitedOutcome, resolveAnnotationTarget, sampleGroundHeight } from './annotationResolver.js';
import { ringCentroid } from './drawMode.js';
// Dev convenience: expose the app's Cesium instance for console/preview probing
// (single shared module instance — avoids dual-Cesium state bugs when testing).
@@ -387,6 +388,9 @@ export function createAnnotationEngine({
async function resolveSpec(spec, signal, allowDistant = false) {
const type = normalizeType(spec?.type);
// MANUAL geometry (drawTool.js): the person clicked the vertices, so there is
// nothing to resolve. Same record shapes as a resolved spec, source 'manual'.
if (isManualSpec(spec, type)) return resolveManualSpec(spec, type, viewer);
if (type === 'route') {
const points = Array.isArray(spec.points) ? spec.points : [];
if (points.length < 2) throw new Error('a route needs at least 2 waypoints');
@@ -1103,6 +1107,67 @@ function round5(n) {
return Number.isFinite(n) ? Math.round(n * 1e5) / 1e5 : null;
}
/** A spec whose geometry was supplied by hand (drawTool.js) rather than by a name. */
function isManualSpec(spec, type) {
if (!spec || spec.manual !== true) return false;
if (type === 'route') return Array.isArray(spec.path) && spec.path.length >= 2;
if (type === 'area') return Array.isArray(spec.ring) && spec.ring.length >= 3;
return Number.isFinite(Number(spec.latitude)) && Number.isFinite(Number(spec.longitude));
}
/** [lon, lat] pairs or {lon, lat} objects → [lon, lat] pairs, invalid entries dropped. */
function manualPairs(list) {
return (Array.isArray(list) ? list : [])
.map((p) => (Array.isArray(p) ? [Number(p[0]), Number(p[1])] : [Number(p?.lon ?? p?.longitude), Number(p?.lat ?? p?.latitude)]))
.filter(([lon, lat]) => Number.isFinite(lon) && Number.isFinite(lat) && Math.abs(lat) <= 90 && Math.abs(lon) <= 180);
}
/**
* Resolve a hand-drawn spec without any fetch. An area keeps its ring as a real
* (not synthesized) outline so it drapes solid; a line is a `route` with mode
* 'manual', its length as distance and no travel time; a pin is a point.
*/
function resolveManualSpec(spec, type, viewer) {
if (type === 'route') {
// height 0 is a placeholder, not a placement: the world renderer draws a
// route with clampToGround + CESIUM_3D_TILE classification, so the line is
// draped onto the photoreal surface whatever this number says.
const pts = manualPairs(spec.path).map(([lon, lat]) => ({ lon, lat, height: 0 }));
if (pts.length < 2) throw new Error('a drawn line needs at least 2 points');
let distanceM = 0;
for (let i = 1; i < pts.length; i += 1) distanceM += greatCircleM(pts[i - 1], pts[i]);
return { path: pts, distanceM, durationS: null, mode: 'manual', source: 'manual', fallback: false };
}
if (type === 'area') {
const ring = manualPairs(spec.ring);
if (ring.length < 3) throw new Error('a drawn area needs at least 3 points');
// Averaged through ringCentroid, which unwraps longitudes first: a ring
// straddling the antimeridian has coordinates like [179.999, -179.999], and
// a raw mean of those puts the anchor on the Greenwich meridian, half a
// world from the shape it belongs to. A repeated closing vertex is dropped
// so it does not weight its own corner twice.
const distinct = closedRingWithoutRepeat(ring);
const centre = ringCentroid(distinct.map(([lon, lat]) => ({ lon, lat })));
const lon = centre.lon;
const lat = centre.lat;
return {
lon, lat, height: sampleGroundHeight(viewer, lon, lat),
ring, footprintKind: 'area', buildingHeight: null, synthesized: false, source: 'manual',
};
}
const lon = Number(spec.longitude);
const lat = Number(spec.latitude);
return { lon, lat, height: sampleGroundHeight(viewer, lon, lat), ring: null, source: 'manual' };
}
/** The ring's distinct positions: a closing vertex that repeats the first is dropped. */
function closedRingWithoutRepeat(ring) {
if (ring.length < 2) return ring;
const [firstLon, firstLat] = ring[0];
const [lastLon, lastLat] = ring[ring.length - 1];
return firstLon === lastLon && firstLat === lastLat ? ring.slice(0, -1) : ring;
}
function normalizeMode(m) {
const t = String(m || '').toLowerCase();
if (t === 'car' || t === 'drive' || t === 'driving') return 'car';
@@ -1138,6 +1203,7 @@ function composeRouteLabel(baseLabel, distM, durS, mode, fallback) {
if (!dist) return baseLabel;
const min = Number.isFinite(durS) ? Math.max(1, Math.round(durS / 60)) : null;
const word = mode === 'car' ? 'drive' : mode === 'bike' ? 'ride' : 'walk';
if (mode === 'manual') return baseLabel ? `${baseLabel} — ${dist}` : dist;
// Fallback = routing was unavailable, so we drew a straight line: label it as a
// direct line with no travel time (never claim an "X min walk" we didn't compute).
let metrics;
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@@ -1,4 +1,4 @@
import { createAnnotationResolver } from './resolver.js';
import { applicationServices } from '../services/application.js';
const resolver = createAnnotationResolver({ boundarySource: applicationServices.boundaries });
export const { resolveAnnotationTarget, refineScope, isRateLimitedOutcome, isGroundsLikeAsk, selectFootprint, viewportBias, placesNearViewRecovery, resolveRegionRingForQuery } = resolver;
export const { resolveAnnotationTarget, refineScope, isRateLimitedOutcome, isGroundsLikeAsk, selectFootprint, viewportBias, placesNearViewRecovery, resolveRegionRingForQuery, pickWorldFromScreen, sampleGroundHeight } = resolver;
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@@ -0,0 +1,303 @@
/**
* Manual whiteboard drawing: the pure half.
*
* The voice whiteboard resolves NAMES to geometry. This module is for the other
* way in: a person clicks the vertices themselves. It holds a draw session (the
* shape being drawn and its vertices), decides when a shape is finishable, and
* turns a finished session into the SAME annotation spec the engine already
* accepts (`type: area | route | pin`, geometry supplied, `manual: true`), so a
* hand-drawn mark renders, persists, de-dups and clears exactly like a spoken
* one.
*
* A vertex is a lon/lat and nothing more. The world renderer drapes every mark
* onto the photoreal surface (`clampToGround` + `CESIUM_3D_TILE`), so there is
* no such thing as a vertex at a height here: the height under the click is
* used for the live preview and is deliberately dropped at finish.
*
* No Cesium, no DOM — importable under `node --test`. The Cesium/DOM half is
* `drawTool.js`.
*/
export const DRAW_SHAPES = Object.freeze(['area', 'line', 'pin']);
export const MIN_VERTICES = Object.freeze({ area: 3, line: 2, pin: 1 });
/**
* Hard ceiling on vertices in one shape. Every vertex is a live preview entity
* and a position in the finished geometry, so a stuck mouse button or a script
* must not be able to grow one shape without limit.
*/
export const MAX_VERTICES = 512;
/** Two clicks closer than this are one vertex: a double-click to finish must not add a stray point. */
export const MIN_VERTEX_SEPARATION_M = 0.5;
/** A line shorter than this, or an area thinner than this, is a mis-click rather than a shape. */
export const MIN_PATH_LENGTH_M = 1;
export const MIN_AREA_M2 = 1;
/** @param {string} shape @returns {'area'|'line'|'pin'} */
export function normalizeShape(shape) {
const s = String(shape || '').toLowerCase();
if (s === 'line' || s === 'path' || s === 'route') return 'line';
if (s === 'pin' || s === 'point' || s === 'marker') return 'pin';
return 'area';
}
/** @param {string} [shape] @returns {{shape: 'area'|'line'|'pin', vertices: Array<{lon:number, lat:number, height?:number}>}} */
export function createDrawSession(shape = 'area') {
return { shape: normalizeShape(shape), vertices: [] };
}
/** Great-circle distance in metres between two {lon, lat} points. */
export function greatCircleM(a, b) {
const R = 6371000;
const toRad = (d) => (d * Math.PI) / 180;
const dLat = toRad(b.lat - a.lat);
const dLon = toRad(b.lon - a.lon);
const h =
Math.sin(dLat / 2) ** 2 +
Math.cos(toRad(a.lat)) * Math.cos(toRad(b.lat)) * Math.sin(dLon / 2) ** 2;
return 2 * R * Math.asin(Math.sqrt(Math.min(1, h)));
}
/**
* Add a vertex. A vertex that is not a finite lon/lat is refused; one within
* MIN_VERTEX_SEPARATION_M of the previous vertex is treated as the same click
* (the second half of a double-click) and refused as a duplicate. A pin holds
* exactly one vertex: a later click moves it.
* @returns {{added: boolean, reason?: 'invalid'|'duplicate'}}
*/
export function addVertex(
session,
vertex,
{ minSeparationM = MIN_VERTEX_SEPARATION_M } = {},
) {
if (!session || !isFiniteCoordinate(vertex))
return { added: false, reason: 'invalid' };
const v = {
lon: vertex.lon,
lat: vertex.lat,
height: Number.isFinite(vertex.height) ? vertex.height : 0,
};
if (session.shape === 'pin') {
session.vertices = [v];
return { added: true };
}
if (session.vertices.length >= MAX_VERTICES)
return { added: false, reason: 'full' };
const last = session.vertices[session.vertices.length - 1];
if (last && greatCircleM(last, v) < minSeparationM)
return { added: false, reason: 'duplicate' };
session.vertices.push(v);
return { added: true };
}
/** A usable click position: finite, and on the globe rather than past its edges. */
export function isFiniteCoordinate(vertex) {
if (!vertex) return false;
const { lon, lat } = vertex;
return (
Number.isFinite(lon) &&
Number.isFinite(lat) &&
Math.abs(lon) <= 180 &&
Math.abs(lat) <= 90
);
}
/** Remove the last vertex. @returns {boolean} whether one was removed */
export function removeLastVertex(session) {
if (!session?.vertices?.length) return false;
session.vertices.pop();
return true;
}
/**
* Why a session can or cannot become an annotation.
* - `too-few`: not enough vertices yet.
* - `degenerate`: enough vertices, but they describe nothing — three collinear
* points enclose no area, and a line that doubles back on itself has no
* length. Drawing one of those and calling it a mark would put an invisible
* entity on the board that the person cannot see, select or explain.
* @returns {'ok'|'too-few'|'degenerate'|'invalid'}
*/
export function finishReason(session) {
if (!session || !Array.isArray(session.vertices)) return 'invalid';
if (session.vertices.some((vertex) => !isFiniteCoordinate(vertex)))
return 'invalid';
if (session.vertices.length < (MIN_VERTICES[session.shape] || 1))
return 'too-few';
if (
session.shape === 'line' &&
pathLengthM(session.vertices) < MIN_PATH_LENGTH_M
)
return 'degenerate';
if (session.shape === 'area' && ringAreaM2(session.vertices) < MIN_AREA_M2)
return 'degenerate';
return 'ok';
}
/** @returns {boolean} whether the session can become an annotation right now */
export function canFinish(session) {
return finishReason(session) === 'ok';
}
/** Length of an open path in metres. */
export function pathLengthM(vertices) {
let m = 0;
for (let i = 1; i < (vertices?.length || 0); i += 1)
m += greatCircleM(vertices[i - 1], vertices[i]);
return m;
}
/**
* The same vertices with longitudes made CONTINUOUS relative to the first one,
* so planar maths does not tear at the antimeridian. A small shape straddling
* 180° has longitudes like [179.999, -179.999]; subtracting those raw gives
* 359.998° of width instead of 0.002°, which is how a 25,000 m² rectangle
* measured 4,461 km² and reported its centre on the Greenwich meridian.
*
* Values may leave the [-180, 180] range on purpose — that is what "continuous"
* means. Re-wrap with `wrapLongitude` before handing one back as a coordinate.
* @param {Array<{lon:number, lat:number}>} vertices
*/
export function unwrapLongitudes(vertices) {
if (!vertices?.length) return [];
const reference = vertices[0].lon;
return vertices.map((vertex) => {
let lon = vertex.lon;
while (lon - reference > 180) lon -= 360;
while (lon - reference < -180) lon += 360;
return { ...vertex, lon };
});
}
/** A continuous longitude brought back into [-180, 180]. */
export function wrapLongitude(lon) {
if (!Number.isFinite(lon)) return lon;
// A value already in range is returned UNCHANGED rather than pushed through
// the modulo, which is only exact in binary for some inputs: 0.0005 came back
// as 0.0004999999999881766. The seam is the only place the arithmetic is
// needed, so it is the only place that pays for it.
if (lon >= -180 && lon < 180) return lon;
const value = ((((lon + 180) % 360) + 360) % 360) - 180;
return Object.is(value, -0) ? 0 : value;
}
/** Planar shoelace area of a ring in square metres (local metre grid; fine at whiteboard scale). */
export function ringAreaM2(vertices) {
if (!vertices || vertices.length < 3) return 0;
const ring = unwrapLongitudes(vertices);
const lat0 = ring.reduce((s, v) => s + v.lat, 0) / ring.length;
const kx = 111320 * Math.cos((lat0 * Math.PI) / 180);
const ky = 111320;
let twice = 0;
for (let i = 0; i < ring.length; i += 1) {
const a = ring[i];
const b = ring[(i + 1) % ring.length];
twice += a.lon * kx * (b.lat * ky) - b.lon * kx * (a.lat * ky);
}
return Math.abs(twice) / 2;
}
/** Vertex-average centroid of a ring, {lon, lat}, safe across the antimeridian. */
export function ringCentroid(vertices) {
if (!vertices?.length) return null;
const ring = unwrapLongitudes(vertices);
return {
lon: wrapLongitude(ring.reduce((s, v) => s + v.lon, 0) / ring.length),
lat: ring.reduce((s, v) => s + v.lat, 0) / ring.length,
};
}
/** Distance or area, formatted for a label suffix. */
export function formatMeasure(session) {
if (!session) return '';
if (session.shape === 'line') {
const m = pathLengthM(session.vertices);
return m >= 1000
? `${(m / 1000).toFixed(m >= 10000 ? 0 : 1)} km`
: `${Math.round(m)} m`;
}
if (session.shape === 'area') {
const m2 = ringAreaM2(session.vertices);
if (m2 >= 1e6) return `${(m2 / 1e6).toFixed(2)} km²`;
if (m2 >= 1e4) return `${(m2 / 1e4).toFixed(1)} ha`;
return `${Math.round(m2)} m²`;
}
return '';
}
/**
* The annotation spec for a finished session, in the shape `annotationEngine.annotate()`
* takes. Null when the session cannot finish. Geometry is supplied outright and
* `manual: true` tells the engine to skip name resolution.
*
* The per-vertex height from the click is dropped here, deliberately and in one
* place: the world renderer drapes areas and routes onto the photoreal surface,
* so a height carried this far would be discarded further downstream instead,
* silently. What the person gets is the outline they drew, lying on the
* surface under it.
* @param {object} session
* @param {{label?: string, color?: string}} [opts]
*/
export function finishSpec(session, { label = '', color = 'primary' } = {}) {
if (!canFinish(session)) return null;
const text = String(label || '').trim();
const pts = session.vertices.map((v) => [v.lon, v.lat]);
if (session.shape === 'area') {
// CLOSED explicitly. A polygon fill closes itself, but the outline beside it
// is a polyline, and an open ring draws every edge except the one back to
// the first vertex — the shape reads as a shape with one side missing.
return {
type: 'area',
manual: true,
ring: closeRing(pts),
label: text || null,
color,
};
}
if (session.shape === 'line') {
return {
type: 'route',
manual: true,
path: pts,
label: text || null,
color,
};
}
const [lon, lat] = pts[0];
return {
type: 'pin',
manual: true,
latitude: lat,
longitude: lon,
label: text || null,
color,
};
}
/** A ring whose last position repeats its first, so an outline has no gap. */
export function closeRing(pairs) {
if (!Array.isArray(pairs) || pairs.length < 3) return pairs;
const [firstLon, firstLat] = pairs[0];
const [lastLon, lastLat] = pairs[pairs.length - 1];
if (firstLon === lastLon && firstLat === lastLat) return pairs;
return [...pairs, [firstLon, firstLat]];
}
/** One line of guidance for the person drawing, by state. */
export function drawHint(session) {
if (!session) return 'Pick a shape, then click the map.';
const n = session.vertices.length;
if (session.shape === 'pin')
return n
? 'Enter to place the pin, Esc to cancel.'
: 'Click where the pin goes.';
const need = MIN_VERTICES[session.shape] - n;
if (need > 0) return `Click ${need} more point${need === 1 ? '' : 's'}.`;
if (finishReason(session) === 'degenerate') {
return session.shape === 'area'
? 'Those points are in a line — move one off it to enclose an area.'
: 'That line has no length — click somewhere further away.';
}
const full =
n >= MAX_VERTICES ? ` · ${MAX_VERTICES}-point limit reached` : '';
return `${formatMeasure(session)} · double-click or Enter to finish, Backspace undoes, Esc cancels.${full}`;
}
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// Pure tests for the manual draw session. Run with: npm test (node --test). No Cesium, no DOM.
import { test } from 'node:test';
import assert from 'node:assert/strict';
import {
createDrawSession,
addVertex,
removeLastVertex,
canFinish,
finishSpec,
normalizeShape,
pathLengthM,
ringAreaM2,
ringCentroid,
formatMeasure,
drawHint,
finishReason,
isFiniteCoordinate,
closeRing,
unwrapLongitudes,
wrapLongitude,
MAX_VERTICES,
MIN_VERTICES,
} from './drawMode.js';
test('shapes normalize to area, line or pin, and unknown words fall back to area', () => {
assert.equal(normalizeShape('route'), 'line');
assert.equal(normalizeShape('marker'), 'pin');
assert.equal(normalizeShape('polygon'), 'area');
assert.equal(normalizeShape(undefined), 'area');
});
test('an area needs three vertices, a line two, a pin one', () => {
const area = createDrawSession('area');
addVertex(area, { lon: -97.74, lat: 30.27 });
addVertex(area, { lon: -97.73, lat: 30.27 });
assert.equal(canFinish(area), false);
addVertex(area, { lon: -97.73, lat: 30.28 });
assert.equal(canFinish(area), true);
assert.equal(MIN_VERTICES.line, 2);
assert.equal(MIN_VERTICES.pin, 1);
});
test('a second click within half a metre is the tail of a double-click, not a vertex', () => {
const line = createDrawSession('line');
assert.deepEqual(addVertex(line, { lon: 0, lat: 0 }), { added: true });
assert.deepEqual(addVertex(line, { lon: 0.000001, lat: 0 }), {
added: false,
reason: 'duplicate',
});
assert.deepEqual(addVertex(line, { lon: 'x', lat: 0 }), {
added: false,
reason: 'invalid',
});
assert.equal(line.vertices.length, 1);
});
test('a pin keeps exactly one vertex: a later click moves it', () => {
const pin = createDrawSession('pin');
addVertex(pin, { lon: 1, lat: 1 });
addVertex(pin, { lon: 2, lat: 2 });
assert.equal(pin.vertices.length, 1);
assert.deepEqual(pin.vertices[0], { lon: 2, lat: 2, height: 0 });
});
test('backspace removes the last vertex and reports whether it did', () => {
const s = createDrawSession('line');
assert.equal(removeLastVertex(s), false);
addVertex(s, { lon: 0, lat: 0 });
assert.equal(removeLastVertex(s), true);
assert.equal(s.vertices.length, 0);
});
test('finishSpec yields the engine spec shapes with manual geometry, or null when unfinished', () => {
const area = createDrawSession('area');
assert.equal(finishSpec(area), null);
[
[-97.74, 30.27],
[-97.73, 30.27],
[-97.73, 30.28],
].forEach(([lon, lat]) => addVertex(area, { lon, lat }));
assert.deepEqual(finishSpec(area, { label: ' Zilker ', color: 'amber' }), {
type: 'area',
manual: true,
// CLOSED: the last position repeats the first so the outline polyline
// draws all three sides of the triangle, not two.
ring: [
[-97.74, 30.27],
[-97.73, 30.27],
[-97.73, 30.28],
[-97.74, 30.27],
],
label: 'Zilker',
color: 'amber',
});
const line = createDrawSession('line');
addVertex(line, { lon: 0, lat: 0 });
addVertex(line, { lon: 0.01, lat: 0 });
assert.deepEqual(finishSpec(line), {
type: 'route',
manual: true,
path: [
[0, 0],
[0.01, 0],
],
label: null,
color: 'primary',
});
const pin = createDrawSession('pin');
addVertex(pin, { lon: 151.2, lat: -33.9 });
assert.deepEqual(finishSpec(pin, { label: 'A shed' }), {
type: 'pin',
manual: true,
latitude: -33.9,
longitude: 151.2,
label: 'A shed',
color: 'primary',
});
});
test('length and area come out in metres on a local grid', () => {
const km = pathLengthM([
{ lon: 0, lat: 0 },
{ lon: 0, lat: 0.009 },
]);
assert.ok(km > 990 && km < 1010, `1 km of latitude, got ${km}`);
const square = [
{ lon: 0, lat: 0 },
{ lon: 0.001, lat: 0 },
{ lon: 0.001, lat: 0.001 },
{ lon: 0, lat: 0.001 },
];
const m2 = ringAreaM2(square);
assert.ok(m2 > 12000 && m2 < 12800, `~111 m square, got ${m2}`);
assert.deepEqual(ringCentroid(square), { lon: 0.0005, lat: 0.0005 });
});
test('the measure and the hint follow the shape and the vertex count', () => {
const area = createDrawSession('area');
assert.equal(drawHint(area), 'Click 3 more points.');
[
{ lon: 0, lat: 0 },
{ lon: 0.01, lat: 0 },
{ lon: 0.01, lat: 0.01 },
].forEach((v) => addVertex(area, v));
assert.match(formatMeasure(area), /ha$|km²$|m²$/);
assert.match(drawHint(area), /double-click or Enter to finish/);
const pin = createDrawSession('pin');
assert.equal(drawHint(pin), 'Click where the pin goes.');
assert.equal(drawHint(null), 'Pick a shape, then click the map.');
});
test('a vertex must be a finite coordinate on the globe', () => {
assert.equal(isFiniteCoordinate({ lon: 12, lat: -4 }), true);
assert.equal(isFiniteCoordinate({ lon: 0, lat: 90 }), true);
for (const bad of [
null,
{},
{ lon: NaN, lat: 0 },
{ lon: 0, lat: Infinity },
{ lon: 181, lat: 0 },
{ lon: 0, lat: -90.5 },
{ lon: '10', lat: 10 },
]) {
assert.equal(isFiniteCoordinate(bad), false, JSON.stringify(bad));
}
const line = createDrawSession('line');
assert.deepEqual(addVertex(line, { lon: 200, lat: 0 }), {
added: false,
reason: 'invalid',
});
assert.equal(line.vertices.length, 0);
});
test('one shape holds at most MAX_VERTICES points', () => {
const line = createDrawSession('line');
for (let i = 0; i < MAX_VERTICES + 25; i += 1)
addVertex(line, { lon: i * 0.001, lat: 0 });
assert.equal(line.vertices.length, MAX_VERTICES);
assert.deepEqual(addVertex(line, { lon: 99, lat: 1 }), {
added: false,
reason: 'full',
});
assert.match(drawHint(line), /512-point limit reached/);
// A pin replaces its one vertex forever: the ceiling cannot strand it.
const pin = createDrawSession('pin');
for (let i = 0; i < MAX_VERTICES + 5; i += 1)
assert.equal(addVertex(pin, { lon: i * 0.01, lat: 0 }).added, true);
assert.equal(pin.vertices.length, 1);
});
test('a shape that encloses nothing is refused, with a reason', () => {
// Three points on one meridian are not an area.
const collinear = createDrawSession('area');
for (const lat of [0, 0.001, 0.002]) addVertex(collinear, { lon: 0, lat });
assert.equal(collinear.vertices.length, 3);
assert.equal(finishReason(collinear), 'degenerate');
assert.equal(canFinish(collinear), false);
assert.equal(finishSpec(collinear), null);
assert.match(drawHint(collinear), /in a line/);
// Moving one point off that line makes it a shape again.
collinear.vertices[2].lon = 0.001;
assert.equal(finishReason(collinear), 'ok');
assert.ok(finishSpec(collinear));
// A line whose two ends are a handful of centimetres apart has no length.
const stub = createDrawSession('line');
addVertex(stub, { lon: 0, lat: 0 });
addVertex(stub, { lon: 0.000007, lat: 0 }, { minSeparationM: 0.01 });
assert.equal(stub.vertices.length, 2);
assert.equal(finishReason(stub), 'degenerate');
assert.equal(finishSpec(stub), null);
assert.match(drawHint(stub), /no length/);
// And the states in between are named, not lumped together.
assert.equal(finishReason(createDrawSession('area')), 'too-few');
assert.equal(finishReason(null), 'invalid');
});
test('a finished area is a CLOSED ring, so its outline has no missing side', () => {
const area = createDrawSession('area');
for (const [lon, lat] of [
[-97.74, 30.27],
[-97.73, 30.27],
[-97.73, 30.28],
])
addVertex(area, { lon, lat });
const spec = finishSpec(area);
assert.equal(
spec.ring.length,
4,
'three clicked vertices become four ring positions',
);
assert.deepEqual(
spec.ring.at(-1),
spec.ring[0],
'the last position repeats the first',
);
// The renderer draws the outline as a polyline over exactly these positions:
// an open ring would draw two of the triangle's three sides.
assert.equal(spec.ring.length - 1, area.vertices.length);
// A line is NOT closed — it is a path, and joining its ends would invent a
// segment the person never drew.
const line = createDrawSession('line');
addVertex(line, { lon: 0, lat: 0 });
addVertex(line, { lon: 0.01, lat: 0 });
assert.equal(finishSpec(line).path.length, 2);
// closeRing is idempotent: finishing an already-closed ring adds nothing.
const closed = closeRing([
[0, 0],
[1, 0],
[1, 1],
[0, 0],
]);
assert.equal(closed.length, 4);
});
test('a shape straddling the antimeridian measures what it looks like', () => {
// 0.002 degrees square at the equator — about 223 m a side, so ~49,600 m2 —
// sitting across 180. Raw longitude arithmetic reads that 0.002-degree width
// as 359.998 degrees: the area came out in the thousands of square
// kilometres and the centroid landed on the Greenwich meridian, half a world
// from the shape it belongs to.
const rectangle = [
{ lon: 179.999, lat: -0.001 },
{ lon: -179.999, lat: -0.001 },
{ lon: -179.999, lat: 0.001 },
{ lon: 179.999, lat: 0.001 },
];
const area = ringAreaM2(rectangle);
assert.ok(
area > 45_000 && area < 55_000,
`a ~223 m x ~223 m patch is ~49,600 m2, got ${Math.round(area)} m2`,
);
assert.ok(area < 1e6, 'and nowhere near a square kilometre');
const centre = ringCentroid(rectangle);
assert.ok(
Math.abs(Math.abs(centre.lon) - 180) < 0.01,
`the centre belongs on the antimeridian, got lon ${centre.lon}`,
);
assert.ok(Math.abs(centre.lat) < 0.01, `got lat ${centre.lat}`);
// Length was already safe — haversine is periodic in the longitude delta —
// and this pins that so a "fix" cannot break it.
const across = pathLengthM([
{ lon: 179.999, lat: 0 },
{ lon: -179.999, lat: 0 },
]);
assert.ok(
across > 150 && across < 300,
`about 222 m, got ${Math.round(across)} m`,
);
// The same shape away from the seam still measures the same.
const inland = rectangle.map((v) => ({ lon: v.lon - 179.999, lat: v.lat }));
assert.ok(
Math.abs(ringAreaM2(inland) - area) < 1,
'position must not change size',
);
// And the ordinary case is untouched.
const austin = [
{ lon: -97.75, lat: 30.26 },
{ lon: -97.74, lat: 30.26 },
{ lon: -97.74, lat: 30.27 },
];
const centroid = ringCentroid(austin);
assert.ok(Math.abs(centroid.lon + 97.7433) < 0.001);
assert.ok(Math.abs(centroid.lat - 30.2633) < 0.001);
});
test('longitude unwrapping is continuous and re-wraps to one canonical range', () => {
const unwrapped = unwrapLongitudes([
{ lon: 179.9, lat: 0 },
{ lon: -179.9, lat: 0 },
]);
assert.equal(unwrapped[0].lon, 179.9);
assert.ok(
Math.abs(unwrapped[1].lon - 180.1) < 1e-9,
`continuous neighbour, got ${unwrapped[1].lon}`,
);
assert.equal(wrapLongitude(180.1).toFixed(4), (-179.9).toFixed(4));
assert.equal(wrapLongitude(-190), 170);
assert.equal(wrapLongitude(10), 10);
assert.equal(wrapLongitude(180), -180);
assert.equal(unwrapLongitudes([]).length, 0);
});
+546
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/**
* Manual whiteboard drawing: the Cesium + DOM half.
*
* DISPLAY ▸ Draw turns the globe into a whiteboard you draw on by hand: pick a
* shape (area, line or pin), click the vertices on the real world, double-click
* or press Enter to finish, type a label. Each finished shape goes through the
* SAME `annotationEngine.annotate()` the voice agent uses, with its geometry
* supplied and `manual: true`, so it renders with the whiteboard look,
* persists, de-dups, shows up in `.list()`, and clears with the board.
*
* Two ownership rules make it safe to share the scene with the layers:
*
* - While a session is open the tool HOLDS THE POINTER
* (`src/data/inputOwnership.js`), and every ambient selection handler yields,
* so a vertex clicked on top of an aircraft or a camera is a vertex and
* nothing else. It is one claim consulted by all of them, not a list of
* exceptions inside each.
* - Cesium's Viewer binds its OWN left click (select the entity under the
* pointer) and double click (track it) on the viewer's handler, outside every
* layer and therefore outside the shared claim. Both are borrowed for the
* session and given back on the way out, and `destroy()` gives back every
* listener, the Cesium handler, the preview data source and the window
* handle, so the tool can be turned off or the shell disposed without leaving
* anything behind.
*
* A vertex carries the height the click landed on — a roof, a hillside — and
* that height is what the live preview hangs on, so the rubber band follows the
* surface under the pointer instead of sinking to sea level. The world renderer
* drapes finished areas and routes onto the surface, so the height is dropped
* at finish, deliberately and in one place — see `finishSpec` in drawMode.js.
*/
import * as Cesium from 'cesium';
import { pickWorldFromScreen } from './annotationResolver.js';
import {
claimPointer,
pointerOwner,
releasePointer,
} from '../data/inputOwnership.js';
import {
DRAW_SHAPES,
MAX_VERTICES,
addVertex,
createDrawSession,
drawHint,
finishReason,
finishSpec,
normalizeShape,
removeLastVertex,
} from './drawMode.js';
/** The id this tool claims the pointer under. */
export const DRAW_POINTER_OWNER = 'draw';
const PREVIEW_DATA_SOURCE_NAME = 'gev-draw-preview';
const COLORS = ['primary', 'amber', 'cyan', 'green', 'red'];
const PREVIEW = {
primary: '#8be9ff',
amber: '#ffb547',
cyan: '#39d0ff',
green: '#5dff9f',
red: '#ff6b6b',
};
/**
* Wire the Draw control. Returns a handle with a `destroy()` the application
* lifetime owns, plus the console/test seam (`window.__gevDrawTool`).
* @param {{viewer: Cesium.Viewer, annotations: {annotate: Function, clear: Function}}} deps
* @returns {{destroy: Function}|null}
*/
export function initDrawTool({ viewer, annotations }) {
const toggle = document.getElementById('draw-toggle');
const modeRow = document.getElementById('draw-mode-row');
const labelRow = document.getElementById('draw-label-row');
const labelInput = document.getElementById('draw-label-input');
const colorSelect = document.getElementById('draw-color-select');
const clearButton = document.getElementById('draw-clear');
const hint = document.getElementById('draw-hint');
if (!viewer || !annotations || !toggle) return null;
let active = false;
let destroyed = false;
let session = null;
let shape = 'area';
let color = 'primary';
let handler = null;
let lease = null;
let savedDoubleClick = null;
let savedSingleClick = null;
let cursor = null; // last mouse position on the canvas, for the rubber band
// Bumped by anything that supersedes an in-flight finish: cancelling, clearing
// the board, leaving draw mode, teardown. An `annotate()` that resolves after
// one of those must not write its outcome over the newer state.
let generation = 0;
const previewEntities = [];
// Every DOM listener this tool adds, so teardown is one loop rather than a
// list that can fall out of step with the bindings below.
const domListeners = [];
const listen = (target, type, listener, options) => {
if (!target) return;
target.addEventListener(type, listener, options);
domListeners.push([target, type, listener, options]);
};
const dataSource = new Cesium.CustomDataSource(PREVIEW_DATA_SOURCE_NAME);
// `add()` resolves on the NEXT tick, so an init-then-immediate-destroy would
// remove a source that had not been attached yet and leave the attachment to
// land afterwards — a preview data source nobody owns. Chain the removal onto
// the attachment instead of racing it.
let attaching = Promise.resolve(viewer.dataSources.add(dataSource)).catch(
() => null,
);
const setHint = (text) => {
if (hint) hint.textContent = text;
};
// ---- preview ---------------------------------------------------------
const vertexPositions = () =>
session.vertices.map((v) =>
Cesium.Cartesian3.fromDegrees(v.lon, v.lat, v.height || 0),
);
const previewLine = dataSource.entities.add({
show: false,
polyline: {
positions: new Cesium.CallbackProperty(() => {
if (!session) return [];
const pts = vertexPositions();
if (cursor && session.shape !== 'pin') pts.push(cursor);
if (session.shape === 'area' && pts.length >= 3) pts.push(pts[0]);
return pts;
}, false),
width: 3,
material: new Cesium.PolylineDashMaterialProperty({
color: Cesium.Color.fromCssColorString(PREVIEW.primary).withAlpha(0.9),
dashLength: 16,
}),
depthFailMaterial: new Cesium.PolylineDashMaterialProperty({
color: Cesium.Color.fromCssColorString(PREVIEW.primary).withAlpha(0.35),
dashLength: 16,
}),
clampToGround: false,
},
});
const syncPreview = () => {
if (destroyed) return;
previewEntities.forEach((e) => dataSource.entities.remove(e));
previewEntities.length = 0;
if (!session) {
previewLine.show = false;
setHint(drawHint(null));
viewer.scene.requestRender();
return;
}
const stroke = Cesium.Color.fromCssColorString(
PREVIEW[color] || PREVIEW.primary,
);
previewLine.polyline.material = new Cesium.PolylineDashMaterialProperty({
color: stroke.withAlpha(0.9),
dashLength: 16,
});
previewLine.show = session.shape !== 'pin';
for (const v of session.vertices) {
previewEntities.push(
dataSource.entities.add({
position: Cesium.Cartesian3.fromDegrees(v.lon, v.lat, v.height || 0),
point: {
pixelSize: 8,
color: stroke,
outlineColor: Cesium.Color.BLACK.withAlpha(0.6),
outlineWidth: 2,
disableDepthTestDistance: Number.POSITIVE_INFINITY,
},
}),
);
}
setHint(drawHint(session));
viewer.scene.requestRender();
};
// ---- vertices from clicks --------------------------------------------
const worldAt = (position) => {
const canvas = viewer.scene.canvas;
const w = canvas.clientWidth || canvas.width || 1;
const h = canvas.clientHeight || canvas.height || 1;
return pickWorldFromScreen(viewer, position.x / w, position.y / h);
};
const onClick = (event) => {
if (!session || destroyed) return;
const p = worldAt(event.position);
if (!p) return;
const { added, reason } = addVertex(session, p);
if (added) {
syncPreview();
return;
}
// A click that changed nothing still deserves an answer when the reason is
// a limit rather than the harmless tail of a double-click.
if (reason === 'full')
setHint(
`That shape already has ${MAX_VERTICES} points — finish it or press Backspace.`,
);
else if (reason === 'invalid')
setHint('That point is off the globe — click on the world.');
};
const onMove = (event) => {
if (!session || session.shape === 'pin' || destroyed) return;
const p = worldAt(event.endPosition);
cursor = p
? Cesium.Cartesian3.fromDegrees(p.lon, p.lat, p.height || 0)
: null;
viewer.scene.requestRender();
};
// ---- finish / cancel -------------------------------------------------
const finish = async () => {
if (destroyed || !session) return null;
const reason = finishReason(session);
if (reason !== 'ok') {
// 'too-few' is just "keep clicking" and the hint already says so;
// a degenerate or off-globe shape needs to be told why it was refused.
if (reason !== 'too-few') setHint(drawHint(session));
return null;
}
const spec = finishSpec(session, { label: labelInput?.value || '', color });
if (!spec) return null;
// Start a fresh session BEFORE awaiting, so a second Enter or the second
// half of a double-click cannot submit the same shape twice.
session = createDrawSession(shape);
cursor = null;
syncPreview();
if (labelInput) labelInput.value = '';
const attempt = generation;
try {
const result = await annotations.annotate([spec], {
persist: true,
flyTo: false,
});
if (destroyed || attempt !== generation) return result;
if (result?.drawn === 0) setHint('That shape could not be placed.');
return result;
} catch (error) {
if (destroyed || attempt !== generation) return null;
setHint(`Could not place the shape: ${error?.message || error}`);
return null;
}
};
const cancel = () => {
if (!session) return;
generation += 1;
session = createDrawSession(shape);
cursor = null;
syncPreview();
};
/** Wipe the board: the shape in progress AND every mark already placed. */
const clearAll = () => {
generation += 1;
cursor = null;
if (session) session = createDrawSession(shape);
annotations.clear();
syncPreview();
if (!destroyed && !active) setHint('Board cleared.');
};
// ---- keys: only while drawing, never while typing in another field ----
const typingElsewhere = (event) => {
const t = event.target;
if (!t || t === labelInput) return false;
return (
t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.isContentEditable
);
};
/**
* Enter is the finish key, but on a focused control Enter means "press this
* control". Keyboard-focusing Clear and pressing Enter must clear the board,
* not finish the shape — so the finish key is only taken from the canvas,
* the page body, or the label field this tool owns.
*/
const enterBelongsToDrawing = (event) => {
const t = event.target;
if (!t || t === labelInput) return true;
if (
typeof t.closest === 'function' &&
t.closest('button, a, select, [role="button"], [role="radio"]')
)
return false;
return (
t === document.body || t === viewer.scene.canvas || t.tagName === 'CANVAS'
);
};
const onKey = (event) => {
if (!active || destroyed || typingElsewhere(event)) return;
// Enter goes to finish() once a shape has been started; finish() owns the
// decision and says WHY it refused. Swallowing the key on a degenerate
// shape left the person pressing Enter at a silent panel. A focused button
// keeps its own Enter — see enterBelongsToDrawing.
if (event.key === 'Enter') {
if (session?.vertices?.length && enterBelongsToDrawing(event)) {
event.preventDefault();
void finish();
}
return;
}
if (event.key === 'Escape') {
event.preventDefault();
event.stopImmediatePropagation();
if (session?.vertices.length) cancel();
else setActive(false);
return;
}
if (event.key === 'Backspace' && event.target !== labelInput) {
if (removeLastVertex(session)) {
event.preventDefault();
syncPreview();
}
}
};
// ---- mode on / off -----------------------------------------------------
function setActive(next) {
if (destroyed || next === active) return active;
if (next) {
lease = claimPointer(DRAW_POINTER_OWNER);
if (!lease) {
// Somebody else is using the pointer — possibly an older instance of
// this same tool that has not finished tearing down. Say so instead of
// half-starting.
setHint(`${pointerOwner()} is using the pointer — close it first.`);
return active;
}
}
active = next;
toggle.classList.toggle('active', active);
toggle.setAttribute('aria-pressed', String(active));
modeRow?.classList.toggle('visible', active);
labelRow?.classList.toggle('visible', active);
document.body.classList.toggle('gev-drawing', active);
if (active) {
session = createDrawSession(shape);
bindSceneHandler();
syncPreview();
} else {
generation += 1;
session = null;
cursor = null;
releaseSceneHandler();
releasePointer(lease);
lease = null;
syncPreview();
}
return active;
}
function bindSceneHandler() {
if (handler) return;
handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
handler.setInputAction(onClick, Cesium.ScreenSpaceEventType.LEFT_CLICK);
handler.setInputAction(onMove, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(() => {
void finish();
}, Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
// Cesium's Viewer binds BOTH stock click actions on its own handler: the
// single click picks an entity into `viewer.selectedEntity`, the double
// click tracks it. Neither goes through a layer, so neither can be fixed by
// the shared pointer claim — they have to be borrowed outright for the
// session and given back on the way out. Borrowing the single click is what
// stops a vertex placed on a contact from also selecting it.
const stock = viewer.screenSpaceEventHandler;
savedSingleClick =
stock.getInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK) || null;
savedDoubleClick =
stock.getInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK) ||
null;
stock.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
stock.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
listen(document, 'keydown', onKey, true);
}
function releaseSceneHandler() {
if (handler) {
handler.destroy();
handler = null;
}
if (savedSingleClick) {
viewer.screenSpaceEventHandler.setInputAction(
savedSingleClick,
Cesium.ScreenSpaceEventType.LEFT_CLICK,
);
savedSingleClick = null;
}
if (savedDoubleClick) {
viewer.screenSpaceEventHandler.setInputAction(
savedDoubleClick,
Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK,
);
savedDoubleClick = null;
}
// Drop just the keydown listener bound alongside this handler; the control
// listeners below outlive a session and come off in destroy().
for (let i = domListeners.length - 1; i >= 0; i -= 1) {
const [target, type, listener, options] = domListeners[i];
if (listener !== onKey) continue;
target.removeEventListener(type, listener, options);
domListeners.splice(i, 1);
}
}
listen(toggle, 'click', () => setActive(!active));
const shapeButtons = [
...(modeRow?.querySelectorAll('.pp-mode-btn[data-shape]') || []),
];
for (const btn of shapeButtons) {
listen(btn, 'click', () => {
shape = normalizeShape(btn.dataset.shape);
for (const other of shapeButtons) {
const on = other === btn;
other.classList.toggle('active', on);
other.setAttribute('aria-checked', String(on));
}
if (active) {
generation += 1;
session = createDrawSession(shape);
cursor = null;
syncPreview();
}
});
}
listen(colorSelect, 'change', () => {
color = COLORS.includes(colorSelect.value) ? colorSelect.value : 'primary';
syncPreview();
});
listen(clearButton, 'click', clearAll);
listen(labelInput, 'keydown', (event) => {
if (event.key === 'Enter' && session?.vertices?.length) {
event.preventDefault();
void finish();
}
});
setHint(drawHint(null));
const api = {
get active() {
return active;
},
get shape() {
return shape;
},
get session() {
return session;
},
setActive,
setShape(next) {
const btn = modeRow?.querySelector(
`.pp-mode-btn[data-shape="${normalizeShape(next)}"]`,
);
btn?.click();
},
/** Test seam: add a vertex from lon/lat as if it had been clicked. */
addVertex(lon, lat, height = 0) {
if (!session) return false;
const r = addVertex(session, { lon, lat, height });
if (r.added) syncPreview();
return r.added;
},
finish,
cancel,
clearAll,
shapes: DRAW_SHAPES,
/** What this tool currently holds — for teardown and leak assertions. */
diagnostics() {
return {
active,
destroyed,
sceneHandler: Boolean(handler),
domListeners: domListeners.length,
previewDataSources: countPreviewDataSources(viewer),
previewEntities: destroyed ? 0 : dataSource.entities.values.length,
pointerOwner: pointerOwner(),
// The viewer's OWN click actions. While a session is open both are
// borrowed (absent here); after it closes both are back. A harness can
// compare the restored functions by identity with what it captured
// before, which is the only way to prove they were given back rather
// than replaced.
stockSingleClick: Boolean(
viewer.screenSpaceEventHandler?.getInputAction?.(
Cesium.ScreenSpaceEventType.LEFT_CLICK,
),
),
stockDoubleClick: Boolean(
viewer.screenSpaceEventHandler?.getInputAction?.(
Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK,
),
),
};
},
/** Resolves once every deferred teardown step has run. */
whenSettled() {
return attaching;
},
destroy() {
if (destroyed) return attaching;
// Supersede any finish still in flight before anything is torn down.
generation += 1;
if (active) setActive(false);
destroyed = true;
releaseSceneHandler();
releasePointer(lease);
lease = null;
for (const [target, type, listener, options] of domListeners.splice(0)) {
target.removeEventListener(type, listener, options);
}
previewEntities.length = 0;
dataSource.entities.removeAll();
// Wait for the pending add() before removing: a destroy() in the same
// tick as init would otherwise remove nothing and let the attachment land
// behind it.
attaching = attaching.then(() => {
try {
viewer.dataSources.remove(dataSource, true);
} catch {
/* viewer already disposed — nothing to detach from */
}
});
document.body.classList.remove('gev-drawing');
toggle.classList.remove('active');
toggle.setAttribute('aria-pressed', 'false');
modeRow?.classList.remove('visible');
labelRow?.classList.remove('visible');
if (hint) hint.textContent = '';
if (window.__gevDrawTool === api) delete window.__gevDrawTool;
return attaching;
},
};
window.__gevDrawTool = api;
return api;
}
/** How many draw previews are attached — more than one means a leaked tool. */
function countPreviewDataSources(viewer) {
const sources = viewer?.dataSources;
if (!sources) return 0;
let found = 0;
for (let index = 0; index < sources.length; index += 1) {
if (sources.get(index)?.name === PREVIEW_DATA_SOURCE_NAME) found += 1;
}
return found;
}
+218
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// STRUCTURAL contracts only: where files live, which ids the markup carries,
// what the docs may claim. Things a running test cannot observe.
//
// Everything about the tool's BEHAVIOUR — the pointer lease, borrowing and
// restoring the viewer's own click actions, teardown, the Enter key, preview
// heights, Clear — is asserted against the running module in
// `drawToolBehaviour.test.mjs`, not by reading this file's source.
import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import test from 'node:test';
import { fileURLToPath } from 'node:url';
const ROOT = path.resolve(
path.dirname(fileURLToPath(import.meta.url)),
'..',
'..',
);
const read = (rel) => fs.readFileSync(path.join(ROOT, rel), 'utf8');
const tool = () => read('src/annotations/drawTool.js');
test('the application composition wires the draw tool and owns its teardown', () => {
const tools = read('src/app/tools.js');
const engineAt = tools.indexOf('const annotations = initAnnotations({');
const drawAt = tools.indexOf(
'const drawTool = initDrawTool({ viewer, annotations });',
);
assert.ok(engineAt >= 0, 'initAnnotations call missing');
assert.ok(
drawAt > engineAt,
'initDrawTool must follow initAnnotations and receive its engine',
);
assert.match(
tools,
/import \{ initDrawTool \} from '\.\.\/annotations\/drawTool\.js';/,
);
// The tool holds a pointer claim, DOM listeners and a data source, so the
// application lifetime disposes it — not whoever last pressed the button.
const deferAt = tools.indexOf('defer(() => drawTool?.destroy());');
assert.ok(deferAt > drawAt, 'the shell must defer the draw tool teardown');
});
test('the engine resolves manual geometry before any name resolution', () => {
const engine = read('src/annotations/annotationEngine.js');
const resolveAt = engine.indexOf(
'async function resolveSpec(spec, signal) {',
);
const manualAt = engine.indexOf(
'if (isManualSpec(spec, type)) return resolveManualSpec(spec, type, viewer);',
resolveAt,
);
const routeAt = engine.indexOf("if (type === 'route') {", resolveAt);
assert.ok(
manualAt > resolveAt && manualAt < routeAt,
'manual specs must short-circuit ahead of the route/arrow/area resolvers',
);
assert.match(
engine,
/if \(mode === 'manual'\) return baseLabel \? `\$\{baseLabel\} — \$\{dist\}` : dist;/,
'a drawn line reports length, never a walk time',
);
});
test('the Draw control markup carries the ids the tool binds to', () => {
// The DISPLAY rail is a component template now, assembled into index.html at
// build time — the markup is not in index.html any more.
const html = read('src/ui/templates/display-controls.html');
const ids = [
'draw-toggle',
'draw-mode-row',
'draw-label-row',
'draw-label-input',
'draw-color-select',
'draw-clear',
'draw-hint',
];
for (const id of ids) {
assert.match(
html,
new RegExp(`id="${id}"`),
`#${id} missing from index.html`,
);
}
for (const shape of ['area', 'line', 'pin']) {
assert.match(
html,
new RegExp(`data-shape="${shape}"`),
`shape button ${shape} missing`,
);
}
for (const id of ids) {
assert.match(
tool(),
new RegExp(`getElementById\\('${id}'\\)`),
`drawTool must bind #${id}`,
);
}
});
test('the DISPLAY rail styles live in their current owner, not the shim', () => {
// The PR this came from was written against the pre-refactor layout, where
// these rules lived in the root style.css. That file is an import shim now,
// and putting rules back into it would silently undo the split.
const shim = read('style.css');
assert.ok(
shim.split('\n').length < 40,
'style.css is an import shim, not a stylesheet',
);
assert.doesNotMatch(
shim,
/draw-hint|pp-text-input/,
'draw styles belong to a component stylesheet',
);
const controls = read('src/ui/styles/controls.css');
for (const rule of [
'#draw-mode-row',
'#draw-label-row',
'.pp-text-input',
'.draw-clear-btn',
'.draw-hint',
'body.gev-drawing',
]) {
assert.ok(
controls.includes(rule),
`${rule} must live in src/ui/styles/controls.css`,
);
}
});
test('nothing promises a GeoJSON export for drawn shapes', () => {
for (const file of [
'src/annotations/drawTool.js',
'src/annotations/drawMode.js',
]) {
assert.doesNotMatch(
read(file),
/GeoJSON/i,
`${file} still claims a GeoJSON export`,
);
}
for (const file of ['README.md', 'CHANGELOG.md', 'docs/CURRENT-STATE.md']) {
const source = read(file);
const at = source.indexOf('DISPLAY ▸ **Draw**');
const start = at >= 0 ? at : source.indexOf('DISPLAY ▸ Draw');
assert.ok(start >= 0, `${file} should describe the Draw control`);
const section = source.slice(start, start + 1200);
assert.doesNotMatch(
section,
/GeoJSON/i,
`${file} still claims a GeoJSON export for drawn shapes`,
);
}
});
test('the docs do not promise a vertex height the renderer would discard', () => {
// Areas and routes are DRAPED, so a per-vertex height is not a placement.
// That the finished spec actually drops it is asserted against the running
// module in drawToolBehaviour.test.mjs; this only guards the wording.
assert.doesNotMatch(tool(), /lands on the roof/);
assert.doesNotMatch(
read('docs/CURRENT-STATE.md'),
/a vertex on a roof lands on the roof/,
);
});
test('draped marks classify onto terrain as well as 3D tiles', () => {
// CESIUM_3D_TILE alone rendered nothing on a keyless boot, where Cesium's own
// globe carries the imagery and there are no tiles to classify against. The
// rendered proof is in scripts/qa-draw-tool.mjs, which counts stroke pixels
// against a keyless server; this stops the constant being narrowed again.
const renderer = read('src/annotations/worldAnnotationRenderer.js');
assert.match(renderer, /const CLASSIFY = Cesium\.ClassificationType\.BOTH;/);
assert.doesNotMatch(
renderer,
/classificationType: Cesium\.ClassificationType\.CESIUM_3D_TILE/,
);
});
test('the draw modules are registered for formatting and boundary checks', () => {
const formatScope = JSON.parse(read('scripts/format-scope.json'));
for (const file of [
'src/annotations/drawMode.js',
'src/annotations/drawMode.test.mjs',
'src/annotations/drawTool.js',
'src/annotations/drawTool.test.mjs',
'src/data/inputOwnership.js',
]) {
assert.ok(
formatScope.includes(file),
`${file} must be in the formatting scope`,
);
}
const boundaries = JSON.parse(read('scripts/package-boundaries.json'));
const owners = (file) =>
Object.entries(boundaries)
.filter(([, group]) => group.modules?.includes(file))
.map(([name]) => name);
for (const file of [
'src/annotations/drawMode.js',
'src/annotations/drawTool.js',
'src/data/inputOwnership.js',
]) {
assert.ok(
owners(file).length > 0,
`${file} must be owned by at least one boundary group`,
);
}
// Every layer that consults the shared claim has to own the module it reads,
// or its bundle fails the boundary check.
for (const group of ['alpr-cameras', 'vessel-layer', 'satellites-layer']) {
assert.ok(
boundaries[group]?.modules.includes('src/data/inputOwnership.js'),
`${group} consults the pointer claim and must own the module`,
);
}
const exports = JSON.parse(read('package.json')).exports;
assert.equal(exports['./annotations'], './src/annotations/index.js');
});
+467
View File
@@ -0,0 +1,467 @@
// Behavioural tests for the draw tool: the module is driven against fake DOM
// and viewer doubles and its OBSERVABLE effects are asserted — which lease it
// holds, which viewer input actions it borrowed and gave back, what it leaves
// behind when destroyed. Nothing here reads the module's source text.
import { test } from 'node:test';
import assert from 'node:assert/strict';
import * as Cesium from 'cesium';
import { initDrawTool } from './drawTool.js';
import {
isPointerFree,
pointerOwner,
claimPointer,
releasePointer,
resetPointerOwnership,
} from '../data/inputOwnership.js';
/* ── DOM doubles ───────────────────────────────────────────────────────── */
class FakeClassList {
constructor() {
this.names = new Set();
}
add(...names) {
for (const n of names) this.names.add(n);
}
remove(...names) {
for (const n of names) this.names.delete(n);
}
contains(name) {
return this.names.has(name);
}
toggle(name, force) {
const on = force === undefined ? !this.names.has(name) : Boolean(force);
if (on) this.names.add(name);
else this.names.delete(name);
return on;
}
}
class FakeElement {
constructor(tagName = 'DIV', id = '') {
this.tagName = tagName.toUpperCase();
this.id = id;
this.classList = new FakeClassList();
this.dataset = {};
this.attributes = new Map();
this.textContent = '';
this.value = '';
this.children = [];
this.listeners = [];
}
setAttribute(name, value) {
this.attributes.set(name, String(value));
}
getAttribute(name) {
return this.attributes.get(name) ?? null;
}
addEventListener(type, listener, options) {
this.listeners.push({ type, listener, options });
}
removeEventListener(type, listener) {
const at = this.listeners.findIndex(
(entry) => entry.type === type && entry.listener === listener,
);
if (at >= 0) this.listeners.splice(at, 1);
}
querySelectorAll(selector) {
if (selector === '.pp-mode-btn[data-shape]')
return this.children.filter((child) => child.dataset.shape);
const shape = /\.pp-mode-btn\[data-shape="([a-z]+)"\]/.exec(selector)?.[1];
if (shape) return this.children.filter((child) => child.dataset.shape === shape);
return [];
}
querySelector(selector) {
return this.querySelectorAll(selector)[0] ?? null;
}
click() {
return this.emit('click');
}
closest(selector) {
// Only what the tool asks: "am I inside an activatable control?"
const activatable = ['button', 'a', 'select', '[role="button"]', '[role="radio"]'];
if (!activatable.some((part) => selector.includes(part))) return null;
return this.tagName === 'BUTTON' || this.tagName === 'A' || this.tagName === 'SELECT'
? this
: null;
}
/** Deliver an event to this element's own listeners. */
emit(type, event = {}) {
const payload = {
type,
target: this,
preventDefault() {},
stopImmediatePropagation() {},
...event,
};
for (const entry of [...this.listeners])
if (entry.type === type) entry.listener(payload);
return payload;
}
}
function fakeDom() {
const byId = new Map();
const make = (id, tagName = 'DIV') => {
const element = new FakeElement(tagName, id);
byId.set(id, element);
return element;
};
make('draw-toggle', 'BUTTON');
const modeRow = make('draw-mode-row');
for (const shape of ['area', 'line', 'pin']) {
const button = new FakeElement('BUTTON');
button.dataset.shape = shape;
modeRow.children.push(button);
}
make('draw-label-row');
make('draw-label-input', 'INPUT');
make('draw-color-select', 'SELECT');
make('draw-clear', 'BUTTON');
make('draw-hint', 'SPAN');
const body = new FakeElement('BODY');
const documentDouble = {
body,
getElementById: (id) => byId.get(id) ?? null,
listeners: [],
addEventListener(type, listener, options) {
this.listeners.push({ type, listener, options });
},
removeEventListener(type, listener) {
const at = this.listeners.findIndex(
(entry) => entry.type === type && entry.listener === listener,
);
if (at >= 0) this.listeners.splice(at, 1);
},
emit(type, event = {}) {
const payload = {
type,
target: body,
preventDefault() {},
stopImmediatePropagation() {},
...event,
};
for (const entry of [...this.listeners])
if (entry.type === type) entry.listener(payload);
return payload;
},
};
return { byId, documentDouble };
}
/* ── viewer double ─────────────────────────────────────────────────────── */
function fakeViewer() {
const canvas = new FakeElement('CANVAS');
canvas.clientWidth = 800;
canvas.clientHeight = 600;
const actions = new Map();
const stockHandler = {
getInputAction: (type) => actions.get(type),
setInputAction: (action, type) => actions.set(type, action),
removeInputAction: (type) => actions.delete(type),
};
const attached = [];
const pendingAdds = [];
const dataSources = {
get length() {
return attached.length;
},
get: (index) => attached[index],
add(source) {
// Cesium resolves this on a later tick — the whole point of finding 7.
const promise = Promise.resolve().then(() => {
attached.push(source);
return source;
});
pendingAdds.push(promise);
return promise;
},
remove(source) {
const at = attached.indexOf(source);
if (at >= 0) attached.splice(at, 1);
return at >= 0;
},
};
return {
scene: { canvas, requestRender() {} },
screenSpaceEventHandler: stockHandler,
dataSources,
_attached: attached,
_actions: actions,
};
}
function fakeAnnotations() {
const calls = { annotate: [], clear: 0 };
return {
calls,
async annotate(specs, options) {
calls.annotate.push({ specs, options });
return { drawn: specs.length };
},
clear() {
calls.clear += 1;
},
};
}
/** Stand up a tool against fresh doubles, with globals restored afterwards. */
function harness() {
resetPointerOwnership();
const { byId, documentDouble } = fakeDom();
const viewer = fakeViewer();
const annotations = fakeAnnotations();
const previousDocument = globalThis.document;
const previousWindow = globalThis.window;
globalThis.document = documentDouble;
globalThis.window = globalThis.window || {};
const tool = initDrawTool({ viewer, annotations });
return {
tool,
viewer,
annotations,
byId,
documentDouble,
element: (id) => byId.get(id),
restore() {
resetPointerOwnership();
if (previousDocument === undefined) delete globalThis.document;
else globalThis.document = previousDocument;
if (previousWindow === undefined) delete globalThis.window;
else globalThis.window = previousWindow;
},
};
}
const LEFT_CLICK = Cesium.ScreenSpaceEventType.LEFT_CLICK;
const LEFT_DOUBLE_CLICK = Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK;
/* ── the tests ─────────────────────────────────────────────────────────── */
test('turning Draw on takes a lease and turning it off gives it back', async () => {
const h = harness();
try {
assert.equal(isPointerFree(), true);
h.element('draw-toggle').emit('click');
assert.equal(pointerOwner(), 'draw', 'the session owns the pointer');
assert.equal(h.tool.active, true);
h.element('draw-toggle').emit('click');
assert.equal(isPointerFree(), true, 'leaving draw mode frees the pointer');
assert.equal(h.tool.active, false);
} finally {
h.restore();
}
});
test('Draw refuses to start when something else holds the pointer', async () => {
const h = harness();
try {
const other = claimPointer('directions');
h.element('draw-toggle').emit('click');
assert.equal(h.tool.active, false, 'it must not half-start');
assert.equal(pointerOwner(), 'directions', 'and must not steal the claim');
assert.match(h.element('draw-hint').textContent, /directions/);
assert.equal(h.tool.diagnostics().sceneHandler, false, 'no handler was bound');
releasePointer(other);
h.element('draw-toggle').emit('click');
assert.equal(h.tool.active, true, 'and it starts once the pointer is free');
} finally {
h.restore();
}
});
test('a destroyed instance cannot free the pointer its replacement holds', async () => {
const first = harness();
try {
first.element('draw-toggle').emit('click');
assert.equal(pointerOwner(), 'draw');
// The replacement takes over before the old one finishes tearing down.
first.tool.setActive(false);
const second = harness();
try {
second.element('draw-toggle').emit('click');
assert.equal(pointerOwner(), 'draw');
await first.tool.destroy();
assert.equal(
pointerOwner(),
'draw',
'the live session still owns the pointer after the old one is destroyed',
);
assert.equal(second.tool.active, true);
} finally {
second.restore();
}
} finally {
first.restore();
}
});
test('both stock viewer click actions are borrowed for the session and given back', async () => {
const h = harness();
try {
const stockClick = () => 'viewer picks and selects';
const stockDouble = () => 'viewer tracks';
h.viewer.screenSpaceEventHandler.setInputAction(stockClick, LEFT_CLICK);
h.viewer.screenSpaceEventHandler.setInputAction(stockDouble, LEFT_DOUBLE_CLICK);
h.element('draw-toggle').emit('click');
assert.equal(
h.viewer.screenSpaceEventHandler.getInputAction(LEFT_CLICK),
undefined,
"the viewer's own selecting click must not run while drawing",
);
assert.equal(
h.viewer.screenSpaceEventHandler.getInputAction(LEFT_DOUBLE_CLICK),
undefined,
);
h.element('draw-toggle').emit('click');
assert.equal(
h.viewer.screenSpaceEventHandler.getInputAction(LEFT_CLICK),
stockClick,
'the exact function is restored, not a replacement',
);
assert.equal(
h.viewer.screenSpaceEventHandler.getInputAction(LEFT_DOUBLE_CLICK),
stockDouble,
);
} finally {
h.restore();
}
});
test('Enter finishes from the canvas and the label field, never from a focused button', async () => {
const h = harness();
try {
h.element('draw-toggle').emit('click');
h.tool.setShape('area');
h.tool.addVertex(-97.75, 30.26);
h.tool.addVertex(-97.74, 30.26);
h.tool.addVertex(-97.74, 30.27);
// Enter while the Clear button has keyboard focus means "press Clear".
h.documentDouble.emit('keydown', { key: 'Enter', target: h.element('draw-clear') });
await Promise.resolve();
assert.equal(
h.annotations.calls.annotate.length,
0,
'a focused button keeps its own Enter',
);
assert.equal(h.tool.session.vertices.length, 3, 'and the shape is untouched');
// Enter from the page body (the canvas has focus in practice) finishes it.
h.documentDouble.emit('keydown', { key: 'Enter', target: h.documentDouble.body });
await Promise.resolve();
await Promise.resolve();
assert.equal(h.annotations.calls.annotate.length, 1, 'Enter on the map finishes');
assert.equal(h.annotations.calls.annotate[0].specs[0].type, 'area');
} finally {
h.restore();
}
});
test('the live preview hangs at the height the click landed on', async () => {
const h = harness();
try {
h.element('draw-toggle').emit('click');
h.tool.setShape('line');
h.tool.addVertex(-97.75, 30.26, 187.5);
h.tool.addVertex(-97.74, 30.26, 212.25);
await h.tool.whenSettled();
const source = h.viewer._attached[0] ?? null;
assert.ok(source, 'the preview data source is attached');
const points = source.entities.values.filter((entity) => entity.point);
assert.equal(points.length, 2, 'one preview dot per vertex');
const heights = points.map((entity) => {
const position = entity.position.getValue(Cesium.JulianDate.now());
return Cesium.Cartographic.fromCartesian(position).height;
});
assert.ok(Math.abs(heights[0] - 187.5) < 0.5, `got ${heights[0]}`);
assert.ok(Math.abs(heights[1] - 212.25) < 0.5, `got ${heights[1]}`);
// …and the finished shape is still flattened, deliberately: the renderer
// drapes, so a height carried further would be discarded out of sight.
h.documentDouble.emit('keydown', { key: 'Enter', target: h.documentDouble.body });
await Promise.resolve();
await Promise.resolve();
const spec = h.annotations.calls.annotate[0].specs[0];
assert.deepEqual(spec.path, [
[-97.75, 30.26],
[-97.74, 30.26],
]);
} finally {
h.restore();
}
});
test('destroy in the same tick as init still removes the preview data source', async () => {
const h = harness();
try {
// Nothing has been attached yet — dataSources.add() resolves later.
assert.equal(h.viewer._attached.length, 0, 'the add is still pending');
await h.tool.destroy();
await Promise.resolve();
assert.equal(
h.viewer._attached.length,
0,
'the preview must not be left attached behind the teardown',
);
} finally {
h.restore();
}
});
test('destroy releases the pointer, the handler, the listeners and the stock actions', async () => {
const h = harness();
try {
const stockClick = () => 'viewer picks and selects';
h.viewer.screenSpaceEventHandler.setInputAction(stockClick, LEFT_CLICK);
h.element('draw-toggle').emit('click');
h.tool.addVertex(-97.75, 30.26);
assert.equal(pointerOwner(), 'draw');
assert.ok(h.tool.diagnostics().domListeners > 0);
await h.tool.destroy();
await Promise.resolve();
assert.equal(isPointerFree(), true, 'the pointer is free');
const after = h.tool.diagnostics();
assert.equal(after.destroyed, true);
assert.equal(after.sceneHandler, false, 'the Cesium handler is gone');
assert.equal(after.domListeners, 0, 'every DOM listener came off');
assert.equal(h.documentDouble.listeners.length, 0, 'including the keydown');
assert.equal(h.element('draw-toggle').listeners.length, 0);
assert.equal(
h.viewer.screenSpaceEventHandler.getInputAction(LEFT_CLICK),
stockClick,
'the viewer got its selecting click back',
);
assert.equal(h.viewer._attached.length, 0, 'the preview data source is detached');
// Idempotent: a second destroy is harmless.
await h.tool.destroy();
} finally {
h.restore();
}
});
test('Clear wipes the board and the shape in progress', async () => {
const h = harness();
try {
h.element('draw-toggle').emit('click');
h.tool.addVertex(-97.75, 30.26);
h.tool.addVertex(-97.74, 30.26);
assert.equal(h.tool.session.vertices.length, 2);
h.element('draw-clear').emit('click');
assert.equal(h.annotations.calls.clear, 1, 'placed marks are removed');
assert.equal(h.tool.session.vertices.length, 0, 'and so is the shape in progress');
} finally {
h.restore();
}
});
+12
View File
@@ -2226,6 +2226,11 @@ export function createAnnotationResolver({
return {
lat: Cesium.Math.toDegrees(carto.latitude),
lon: Cesium.Math.toDegrees(carto.longitude),
// The height the pick actually landed on — a roof, a hillside, or 0 on
// the ellipsoid. Callers that only want a coordinate ignore it; the draw
// tool's live preview needs it, or the rubber band sinks to sea level
// while the pointer is on a hill.
height: Number.isFinite(carto.height) ? carto.height : 0,
};
}
@@ -2331,5 +2336,12 @@ export function createAnnotationResolver({
viewportBias,
placesNearViewRecovery,
resolveRegionRingForQuery,
// Scene helpers, not resolution: the manual draw tool turns a click into a
// world point with the same depth-aware cascade the agent's pixel fallback
// uses, and the engine samples the surface under a hand-placed mark. Both
// are exposed so there is ONE pick cascade in the app, not a second one
// written beside it.
pickWorldFromScreen,
sampleGroundHeight,
};
}
+14 -1
View File
@@ -30,7 +30,20 @@ const PALETTE = {
red: '#ff6b6b',
};
const CLASSIFY = Cesium.ClassificationType.CESIUM_3D_TILE;
/**
* What a draped mark is allowed to paint onto.
*
* This was CESIUM_3D_TILE, which is right with Google's photoreal tiles under
* the camera and wrong everywhere else: on a keyless boot (Esri or OSM imagery
* on Cesium's own globe) there are no 3D tiles to classify against, so every
* area fill, area outline, route and arrow rendered to nothing. The labels
* showed and the geometry did not, which reads as a broken feature rather than
* an unsupported surface — and it hit spoken annotations exactly as hard as
* hand-drawn ones.
*
* BOTH paints onto terrain AND onto 3D tiles, so one value covers both worlds.
*/
const CLASSIFY = Cesium.ClassificationType.BOTH;
const CLAMP = Cesium.HeightReference.CLAMP_TO_GROUND;
export function createWorldAnnotationRenderer(viewer) {