Spaces:
Running
Running
File size: 25,566 Bytes
72448e1 570f994 72448e1 570f994 72448e1 ee47e44 72448e1 ee47e44 73f458a 72448e1 570f994 72448e1 570f994 72448e1 570f994 72448e1 570f994 72448e1 570f994 72448e1 73f458a 570f994 73f458a 570f994 73f458a 72448e1 570f994 72448e1 570f994 72448e1 570f994 72448e1 570f994 72448e1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Abu Dhabi Pickleball Club: 16 months of group growth</title>
</head>
<body>
<nav class="sitenav"><a href="index.html">The case for courts →</a></nav>
<style>.sitenav{max-width:980px;margin:0 auto 1.4rem;font:600 .78rem/1 system-ui,-apple-system,sans-serif;
letter-spacing:.06em;text-transform:uppercase}
.sitenav a{color:inherit;opacity:.62;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px}
.sitenav a:hover,.sitenav a:focus-visible{opacity:1}</style>
<style>
:root{
--plane:#f2f2ee; --surface:#fcfcfb; --ink:#12130f; --ink-2:#52544c; --muted:#8a8b82;
--grid:#e1e0d9; --axis:#c3c2b7; --ring:rgba(11,11,11,.10);
--grow:#2a78d6; --churn:#e34948; --wash:rgba(42,120,214,.10);
--sp:clamp(1rem,3vw,1.6rem);
}
@media (prefers-color-scheme:dark){ :root:where(:not([data-theme="light"])){
--plane:#0d0d0c; --surface:#1a1a19; --ink:#fff; --ink-2:#c3c2b7; --muted:#898781;
--grid:#2c2c2a; --axis:#383835; --ring:rgba(255,255,255,.10);
--grow:#3987e5; --churn:#e66767; --wash:rgba(57,135,229,.13);
}}
:root[data-theme="dark"]{
--plane:#0d0d0c; --surface:#1a1a19; --ink:#fff; --ink-2:#c3c2b7; --muted:#898781;
--grid:#2c2c2a; --axis:#383835; --ring:rgba(255,255,255,.10);
--grow:#3987e5; --churn:#e66767; --wash:rgba(57,135,229,.13);
}
*{box-sizing:border-box}
body{background:var(--plane);color:var(--ink);
font:400 16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;margin:0;padding:var(--sp)}
.wrap{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:2.6rem}
.eyebrow{font-size:.72rem;letter-spacing:.11em;text-transform:uppercase;color:var(--muted);
font-weight:600;margin:0}
h1{font-size:clamp(1.8rem,4.6vw,2.85rem);line-height:1.06;letter-spacing:-.03em;font-weight:700;
margin:.5rem 0 0;text-wrap:balance;max-width:19ch}
h2{font-size:clamp(1.1rem,2.4vw,1.4rem);letter-spacing:-.02em;font-weight:700;margin:0;
text-wrap:balance}
.lede{font-family:"Iowan Old Style",Georgia,serif;font-size:1.1rem;line-height:1.62;
color:var(--ink-2);max-width:60ch;margin:1.1rem 0 0}
.prose{font-family:"Iowan Old Style",Georgia,serif;line-height:1.65;color:var(--ink-2);
max-width:62ch;margin:0}
.prose b,.prose strong{color:var(--ink);font-weight:600}
header{border-bottom:1px solid var(--axis);padding-bottom:2rem}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:1px;
background:var(--axis);border:1px solid var(--axis);border-radius:3px;overflow:hidden}
.stat{background:var(--surface);padding:1rem 1.1rem;display:flex;flex-direction:column;gap:.3rem}
.stat .k{font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.stat .v{font-size:1.85rem;font-weight:700;letter-spacing:-.03em;line-height:1}
.stat .n{font-size:.8rem;color:var(--muted)}
.panel{background:var(--surface);border:1px solid var(--ring);border-radius:3px;
padding:1.3rem var(--sp) 1.1rem;display:flex;flex-direction:column;gap:.35rem}
.phead{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;align-items:baseline;justify-content:space-between}
.psub{font-size:.85rem;color:var(--muted);margin:0;max-width:58ch}
.figbox{overflow-x:auto;margin-top:.7rem}
svg{display:block;width:100%;height:auto;overflow:visible}
.figbox.wide svg{min-width:560px}
.figbox.narrow svg{min-width:290px}
.legend{display:flex;gap:1.1rem;flex-wrap:wrap;font-size:.8rem;color:var(--ink-2);align-items:center}
.legend span{display:inline-flex;align-items:center;gap:.42rem}
.sw{width:11px;height:11px;border-radius:2px;flex:none}
.tick{font-size:11px;fill:var(--muted);font-variant-numeric:tabular-nums}
.dlabel{font-size:12px;font-weight:600;fill:var(--ink);font-variant-numeric:tabular-nums}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.1rem}
.section{display:flex;flex-direction:column;gap:1.1rem}
table{border-collapse:collapse;width:100%;font-size:.84rem;font-variant-numeric:tabular-nums}
th,td{padding:.44rem .6rem;text-align:right;border-bottom:1px solid var(--grid);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
thead th{font-size:.68rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);
font-weight:600;border-bottom:1px solid var(--axis)}
tbody tr:last-child td{border-bottom:none;color:var(--muted)}
details>summary{cursor:pointer;font-size:.85rem;color:var(--ink-2);font-weight:600;
padding:.4rem 0;list-style:none;display:flex;gap:.5rem;align-items:center}
details>summary::before{content:"\25B8";color:var(--muted);transition:transform .15s}
details[open]>summary::before{transform:rotate(90deg)}
details>summary:focus-visible{outline:2px solid var(--grow);outline-offset:3px;border-radius:2px}
.note{border-left:2px solid var(--axis);padding:.15rem 0 .15rem 1.1rem;
display:flex;flex-direction:column;gap:.7rem}
.note h3{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
font-weight:600;margin:0}
.note p{margin:0;font-size:.92rem;line-height:1.6;color:var(--ink-2);max-width:64ch}
#tip{position:fixed;pointer-events:none;opacity:0;transition:opacity .1s;z-index:9;
background:var(--surface);border:1px solid var(--axis);border-radius:3px;padding:.5rem .7rem;
font-size:.78rem;line-height:1.45;color:var(--ink);box-shadow:0 4px 16px rgba(0,0,0,.14);
font-variant-numeric:tabular-nums;white-space:nowrap}
#tip b{font-weight:600}
#tip .r{display:flex;justify-content:space-between;gap:1rem;color:var(--ink-2)}
#tip .r i{font-style:normal;color:var(--ink);font-weight:600}
footer{color:var(--muted);font-size:.8rem;border-top:1px solid var(--axis);padding-top:1.2rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
</style>
<div class="wrap">
<header>
<p class="eyebrow">WhatsApp group export · 20 Apr 2025 – 8 Aug 2026</p>
<h1>From 13 friends to 505 members in 16 months</h1>
<p class="lede">Abu Dhabi Pickleball Club began with a small group organising a
Tuesday morning game. Sixteen months later, the group has more than 500 members.
This page shows how the membership changed and how many members posted each month.</p>
</header>
<div class="stats">
<div class="stat"><span class="k">Members now</span><span class="v">505</span><span class="n">from 13 at founding</span></div>
<div class="stat"><span class="k">Ever joined</span><span class="v">695</span><span class="n">across 16 months</span></div>
<div class="stat"><span class="k">Departed</span><span class="v">190</span><span class="n">27% of everyone who joined</span></div>
<div class="stat"><span class="k">Messages</span><span class="v">13,577</span><span class="n">peak 1,924 in Apr 2026</span></div>
</div>
<section class="section">
<div class="panel">
<div class="phead"><h2>Membership, day by day</h2></div>
<p class="psub">Reconstructed from every add, invite, leave and removal event in
the export. Hover for any date.</p>
<div class="figbox wide"><svg id="c1" viewBox="0 0 900 330" role="img"
aria-label="Membership grew from 14 on 20 April 2025 to 505 on 8 August 2026,
climbing steadily through the first year then steepening sharply from April 2026."></svg></div>
</div>
<p class="prose">Growth was steady but not constant. The first twelve months added
about <b>23 members a month</b>. Then something shifted in spring 2026: the four
months from April to July alone brought in <b>307 people</b>, taking membership from
288 to 491. That turning point is the clearest single feature in the data.</p>
</section>
<section class="section">
<div class="panel">
<div class="phead">
<h2>Who arrived, who left</h2>
<div class="legend">
<span><i class="sw" style="background:var(--grow)"></i>Joined</span>
<span><i class="sw" style="background:var(--churn)"></i>Left</span>
</div>
</div>
<p class="psub">Monthly arrivals above the line, departures below, on one shared
scale. Nobody left at all for the first three months.</p>
<div class="figbox wide"><svg id="c2" viewBox="0 0 900 300" role="img"
aria-label="Monthly joins peaked at 94 in May 2026; departures peaked at 36 in
June 2026. No departures occurred before July 2025."></svg></div>
</div>
<p class="prose">People started leaving in July 2025. No one left in the first
<b>three months</b>. Since then, <b>13–36 people a month</b> have left, while
more people have joined each month.</p>
</section>
<section class="section">
<div class="panel">
<div class="phead"><h2>Members who posted</h2></div>
<p class="psub">Number of different members who posted each month.</p>
<div class="figbox narrow"><svg id="c3" viewBox="0 0 440 260" role="img"
aria-label="The number of different members posting each month rose from 10 to a peak
of 131 in May 2026, then fell to 89 in July 2026."></svg></div>
</div>
<p class="prose">The number of members who posted grew as the group grew. It reached
<b>131 members</b> in May 2026. The July figure was <b>89 members</b>.</p>
</section>
<div class="panel">
<details>
<summary>Month-by-month figures</summary>
<div class="figbox wide" style="margin-top:.8rem">
<table>
<thead><tr><th>Month</th><th>Members</th><th>Joined</th><th>Left</th>
<th>Net</th><th>Posted</th><th>Messages</th></tr></thead>
<tbody id="tbody"></tbody>
</table>
</div>
</details>
</div>
<div class="note">
<h3>How this was counted</h3>
<p>A WhatsApp export does not include a member list. It only includes events that change
membership. This timeline replays all 908 membership events (adds, group-link joins, personal invites,
leaves, removals) from the group’s creation forward.</p>
<p>Three tricky cases matter here. Multi-person adds
(<i>“X added A, B, and C”</i>) are one line of text but three people. The line
<i>“removed this group from the community”</i> is not someone leaving. And
arrivals are written in four different ways: a group link, an invite link,
a personal invite, and a direct add. Missing any one of them would make the
count too low. All four are included.</p>
<p>Thirteen members are counted as already there on day one: seven were posting before
any join event was recorded, and six more are inferred. Every other way of
joining the group leaves a record, so a member with no record of joining can only have
been there from the start. That makes the total match the <b>505</b> members WhatsApp
reports exactly. Seven later members post under a display name that never matched a
join event; they are counted from when they first appear, which places a few arrivals
slightly later than they truly happened.</p>
<p>August 2026 covers only 8 days and is shown with dashed lines. Do not read
it as a monthly figure. Members whose contact is not saved appear as phone numbers,
and 22 people changed their number mid-history, so a small number of individuals may
be represented twice.</p>
</div>
<footer>Source: <i>WhatsApp Chat - Abu Dhabi Pickleball Club.zip</i> ·
38,165 lines · 13,577 messages · 908 membership events.</footer>
</div>
<div id="tip" role="status" aria-live="polite"></div>
<script>
const DAILY = [14, 15, 19, 19, 19, 22, 23, 25, 25, 26, 26, 27, 27, 27, 27, 27, 28, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 31, 31, 31, 31, 31, 34, 39, 42, 42, 42, 43, 43, 43, 50, 52, 52, 52, 52, 52, 53, 54, 60, 61, 62, 63, 63, 63, 63, 66, 66, 66, 66, 67, 68, 68, 68, 71, 73, 74, 74, 74, 76, 76, 76, 76, 78, 78, 79, 84, 85, 85, 84, 85, 86, 86, 86, 87, 87, 87, 88, 87, 87, 88, 88, 88, 88, 88, 90, 90, 91, 93, 106, 115, 120, 120, 120, 121, 122, 122, 122, 122, 122, 123, 124, 127, 127, 127, 127, 128, 128, 129, 130, 133, 134, 138, 139, 141, 141, 141, 142, 142, 142, 146, 146, 148, 150, 152, 154, 154, 153, 153, 153, 153, 154, 154, 154, 154, 154, 154, 154, 157, 157, 157, 156, 155, 155, 156, 159, 159, 159, 161, 161, 162, 164, 167, 167, 167, 168, 169, 171, 171, 172, 172, 172, 173, 173, 171, 175, 175, 177, 177, 177, 176, 177, 177, 178, 179, 178, 178, 179, 179, 179, 177, 177, 177, 180, 182, 181, 184, 185, 188, 188, 189, 190, 191, 191, 192, 192, 193, 192, 192, 195, 196, 196, 196, 198, 198, 198, 202, 206, 209, 211, 211, 211, 214, 214, 213, 211, 212, 215, 215, 215, 216, 216, 221, 221, 222, 222, 222, 222, 222, 223, 222, 224, 224, 223, 222, 221, 220, 220, 221, 221, 222, 223, 223, 223, 225, 225, 225, 225, 228, 228, 228, 229, 229, 233, 233, 234, 238, 244, 242, 242, 244, 246, 245, 246, 249, 253, 254, 256, 259, 259, 257, 259, 263, 262, 262, 263, 265, 269, 269, 269, 269, 270, 271, 272, 272, 272, 273, 272, 272, 276, 277, 275, 274, 276, 276, 276, 276, 275, 276, 276, 275, 275, 274, 277, 277, 277, 277, 276, 276, 276, 275, 274, 274, 276, 276, 276, 277, 278, 279, 280, 280, 282, 283, 283, 284, 285, 285, 284, 284, 285, 283, 285, 284, 283, 284, 288, 289, 294, 300, 302, 301, 302, 302, 302, 303, 304, 311, 313, 313, 316, 321, 322, 323, 325, 327, 329, 331, 330, 332, 329, 330, 331, 330, 329, 329, 331, 334, 337, 335, 340, 341, 343, 352, 356, 357, 357, 359, 361, 360, 362, 365, 372, 375, 382, 384, 384, 390, 390, 392, 393, 396, 396, 399, 400, 399, 399, 404, 408, 413, 416, 418, 420, 421, 424, 425, 426, 426, 430, 431, 435, 439, 440, 439, 439, 439, 442, 442, 444, 442, 446, 446, 447, 447, 447, 448, 447, 449, 450, 450, 450, 447, 450, 451, 448, 446, 445, 445, 445, 460, 464, 468, 473, 474, 477, 477, 480, 480, 481, 482, 482, 482, 483, 485, 484, 491, 490, 490, 491, 492, 491, 493, 494, 497, 499, 503, 505];
const M = [{"month":"2025-04","members":26,"joined":13,"left":0,"active":10,"msgs":63,"pct":38.5},{"month":"2025-05","members":50,"joined":24,"left":0,"active":21,"msgs":127,"pct":42.0},{"month":"2025-06","members":76,"joined":26,"left":0,"active":33,"msgs":562,"pct":43.4},{"month":"2025-07","members":120,"joined":48,"left":4,"active":60,"msgs":981,"pct":50.0},{"month":"2025-08","members":150,"joined":37,"left":7,"active":75,"msgs":1363,"pct":50.0},{"month":"2025-09","members":167,"joined":25,"left":8,"active":74,"msgs":1001,"pct":44.3},{"month":"2025-10","members":182,"joined":25,"left":10,"active":61,"msgs":433,"pct":33.5},{"month":"2025-11","members":213,"joined":45,"left":14,"active":63,"msgs":919,"pct":29.6},{"month":"2025-12","members":225,"joined":28,"left":16,"active":67,"msgs":687,"pct":29.8},{"month":"2026-01","members":265,"joined":58,"left":18,"active":98,"msgs":1028,"pct":37.0},{"month":"2026-02","members":277,"joined":26,"left":14,"active":79,"msgs":561,"pct":28.5},{"month":"2026-03","members":288,"joined":24,"left":13,"active":74,"msgs":962,"pct":25.7},{"month":"2026-04","members":331,"joined":68,"left":25,"active":122,"msgs":1924,"pct":36.9},{"month":"2026-05","members":404,"joined":94,"left":21,"active":131,"msgs":1480,"pct":32.4},{"month":"2026-06","members":449,"joined":81,"left":36,"active":123,"msgs":870,"pct":27.4},{"month":"2026-07","members":491,"joined":64,"left":22,"active":89,"msgs":561,"pct":18.1},{"month":"2026-08","members":505,"joined":17,"left":3,"active":19,"msgs":55,"pct":3.8}];
const START = Date.UTC(2025, 3, 20);
const MN = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
const NS = "http://www.w3.org/2000/svg";
const PARTIAL = M.length - 1; // Aug 2026 = 8 days only
const el = (t, a) => { const n = document.createElementNS(NS, t);
for (const k in a) n.setAttribute(k, a[k]); return n; };
const fmtM = s => { const [y, m] = s.split("-"); return MN[+m - 1] + " " + y.slice(2); };
const dayLabel = i => { const d = new Date(START + i * 864e5);
return d.getUTCDate() + " " + MN[d.getUTCMonth()] + " " + d.getUTCFullYear(); };
/* bar path: rounded at the data end, square at the baseline */
function bar(x, w, base, val, r, up) {
const h = Math.abs(val - base); if (h < .5) return "";
const rr = Math.min(r, h, w / 2), y = up ? val : base;
return up
? "M" + x + "," + base + " V" + (y + rr) + " q0," + (-rr) + " " + rr + "," + (-rr) +
" h" + (w - 2 * rr) + " q" + rr + ",0 " + rr + "," + rr + " V" + base + " Z"
: "M" + x + "," + base + " V" + (base + h - rr) + " q0," + rr + " " + rr + "," + rr +
" h" + (w - 2 * rr) + " q" + rr + ",0 " + rr + "," + (-rr) + " V" + base + " Z";
}
const tip = document.getElementById("tip");
function showTip(e, html) {
tip.innerHTML = html; tip.style.opacity = 1;
const r = tip.getBoundingClientRect();
let x = e.clientX + 14, y = e.clientY - r.height - 12;
if (x + r.width > innerWidth - 8) x = e.clientX - r.width - 14;
if (y < 8) y = e.clientY + 18;
tip.style.left = x + "px"; tip.style.top = y + "px";
}
const hideTip = () => tip.style.opacity = 0;
const rowsFor = m => "<div class='r'><span>Joined</span><i>+" + m.joined + "</i></div>" +
"<div class='r'><span>Left</span><i>−" + m.left + "</i></div>" +
"<div class='r'><span>Roster end</span><i>" + m.members + "</i></div>" +
"<div class='r'><span>Posted</span><i>" + m.active + "</i></div>" +
"<div class='r'><span>Messages</span><i>" + m.msgs.toLocaleString() + "</i></div>";
/* ---------- 1. daily membership ---------- */
(function () {
const svg = document.getElementById("c1");
const W = 900, H = 330, L = 44, R = 52, T = 16, B = 30;
const pw = W - L - R, ph = H - T - B, max = 550;
const X = i => L + i * pw / (DAILY.length - 1);
const Y = v => T + ph - v / max * ph;
for (let v = 0; v <= 500; v += 100) {
svg.append(el("line", { x1: L, x2: L + pw, y1: Y(v), y2: Y(v),
stroke: "var(--grid)", "stroke-width": 1 }));
const t = el("text", { x: L - 8, y: Y(v) + 4, "text-anchor": "end", class: "tick" });
t.textContent = v; svg.append(t);
}
let area = "M" + X(0) + "," + Y(0), line = "";
DAILY.forEach((v, i) => { area += " L" + X(i) + "," + Y(v);
line += (i ? " L" : "M") + X(i) + "," + Y(v); });
area += " L" + X(DAILY.length - 1) + "," + Y(0) + " Z";
svg.append(el("path", { d: area, fill: "var(--wash)" }));
svg.append(el("path", { d: line, fill: "none", stroke: "var(--grow)",
"stroke-width": 2, "stroke-linejoin": "round", "stroke-linecap": "round" }));
M.forEach(m => {
const [y, mo] = m.month.split("-");
if (+mo % 3 !== 1) return;
const i = Math.max(0, Math.round((Date.UTC(+y, +mo - 1, 1) - START) / 864e5));
if (i >= DAILY.length) return;
const t = el("text", { x: X(i), y: H - 8, "text-anchor": "middle", class: "tick" });
t.textContent = fmtM(m.month); svg.append(t);
});
const last = DAILY.length - 1;
svg.append(el("circle", { cx: X(last), cy: Y(DAILY[last]), r: 4.5, fill: "var(--grow)",
stroke: "var(--surface)", "stroke-width": 2 }));
const lab = el("text", { x: X(last) + 10, y: Y(DAILY[last]) + 4, class: "dlabel" });
lab.textContent = "505"; svg.append(lab);
const cross = el("line", { y1: T, y2: T + ph, stroke: "var(--axis)", "stroke-width": 1, opacity: 0 });
const dot = el("circle", { r: 4.5, fill: "var(--grow)", stroke: "var(--surface)",
"stroke-width": 2, opacity: 0 });
svg.append(cross, dot);
const hit = el("rect", { x: L, y: T, width: pw, height: ph, fill: "transparent" });
svg.append(hit);
hit.addEventListener("pointermove", e => {
const b = svg.getBoundingClientRect();
const i = Math.max(0, Math.min(DAILY.length - 1,
Math.round(((e.clientX - b.left) / b.width * W - L) / pw * (DAILY.length - 1))));
cross.setAttribute("x1", X(i)); cross.setAttribute("x2", X(i)); cross.setAttribute("opacity", 1);
dot.setAttribute("cx", X(i)); dot.setAttribute("cy", Y(DAILY[i])); dot.setAttribute("opacity", 1);
showTip(e, "<b>" + DAILY[i] + " members</b><div class='r'>" + dayLabel(i) + "</div>");
});
hit.addEventListener("pointerleave", () => {
hideTip(); cross.setAttribute("opacity", 0); dot.setAttribute("opacity", 0);
});
})();
/* ---------- 2. joins / leaves, one shared scale ---------- */
(function () {
const svg = document.getElementById("c2");
const W = 900, H = 300, L = 44, R = 14, T = 14, B = 36;
const pw = W - L - R, ph = H - T - B;
const UP = 100, DN = 40, unit = ph / (UP + DN), zero = T + UP * unit;
const YU = v => zero - v * unit, YD = v => zero + v * unit;
const band = pw / M.length, bw = Math.min(24, band - 2);
const addGrid = (y, v) => {
svg.append(el("line", { x1: L, x2: L + pw, y1: y, y2: y, stroke: "var(--grid)", "stroke-width": 1 }));
const t = el("text", { x: L - 8, y: y + 4, "text-anchor": "end", class: "tick" });
t.textContent = v; svg.append(t);
};
[25, 50, 75, 100].forEach(v => addGrid(YU(v), v));
[25].forEach(v => addGrid(YD(v), v));
svg.append(el("line", { x1: L, x2: L + pw, y1: zero, y2: zero,
stroke: "var(--axis)", "stroke-width": 1 }));
M.forEach((m, i) => {
const x = L + i * band + (band - bw) / 2, part = i === PARTIAL;
const mk = (d, fill) => { if (!d) return;
svg.append(el("path", { d, fill: part ? "none" : fill, stroke: part ? fill : "none",
"stroke-width": part ? 1.5 : 0, "stroke-dasharray": part ? "3 2" : "" })); };
mk(bar(x, bw, zero - 1, YU(m.joined), 4, true), "var(--grow)");
mk(bar(x, bw, zero + 1, YD(m.left), 4, false), "var(--churn)");
const t = el("text", { x: x + bw / 2, y: H - 12, "text-anchor": "middle", class: "tick" });
t.textContent = fmtM(m.month).split(" ")[0];
t.setAttribute("opacity", part ? .55 : 1); svg.append(t);
if (i === 0 || m.month.endsWith("-01")) {
const y2 = el("text", { x: x + bw / 2, y: H, "text-anchor": "middle", class: "tick" });
y2.textContent = "20" + m.month.slice(2, 4); svg.append(y2);
}
if (m.joined === 94) {
const v = el("text", { x: x + bw / 2, y: YU(m.joined) - 8, "text-anchor": "middle", class: "dlabel" });
v.textContent = "94"; svg.append(v);
}
const hit = el("rect", { x: L + i * band, y: T, width: band, height: ph, fill: "transparent" });
hit.addEventListener("pointermove", e => showTip(e,
"<b>" + fmtM(m.month) + (part ? " (8 days)" : "") + "</b>" + rowsFor(m)));
hit.addEventListener("pointerleave", hideTip);
svg.append(hit);
});
})();
/* ---------- 3. monthly posters ---------- */
function small(id, key, max, ticks, fmt, kind) {
const svg = document.getElementById(id);
const W = 440, H = 260, L = 38, R = 14, T = 16, B = 30;
const pw = W - L - R, ph = H - T - B;
const Y = v => T + ph - v / max * ph;
const band = pw / M.length, bw = Math.min(22, band - 2);
const cx = i => L + i * band + band / 2;
ticks.forEach(v => {
svg.append(el("line", { x1: L, x2: L + pw, y1: Y(v), y2: Y(v), stroke: "var(--grid)", "stroke-width": 1 }));
const t = el("text", { x: L - 7, y: Y(v) + 4, "text-anchor": "end", class: "tick" });
t.textContent = fmt(v); svg.append(t);
});
svg.append(el("line", { x1: L, x2: L + pw, y1: Y(0), y2: Y(0), stroke: "var(--axis)", "stroke-width": 1 }));
if (kind === "line") {
let d = "";
M.forEach((m, i) => { if (i === PARTIAL) return;
d += (d ? " L" : "M") + cx(i) + "," + Y(m[key]); });
svg.append(el("path", { d, fill: "none", stroke: "var(--grow)", "stroke-width": 2,
"stroke-linejoin": "round", "stroke-linecap": "round" }));
svg.append(el("path", { d: "M" + cx(PARTIAL - 1) + "," + Y(M[PARTIAL - 1][key]) +
" L" + cx(PARTIAL) + "," + Y(M[PARTIAL][key]), fill: "none", stroke: "var(--grow)",
"stroke-width": 2, "stroke-dasharray": "3 3", opacity: .55 }));
M.forEach((m, i) => { if (i === PARTIAL) return;
svg.append(el("circle", { cx: cx(i), cy: Y(m[key]), r: 3.4, fill: "var(--grow)",
stroke: "var(--surface)", "stroke-width": 2 })); });
svg.append(el("circle", { cx: cx(PARTIAL), cy: Y(M[PARTIAL][key]), r: 3.4, fill: "var(--surface)",
stroke: "var(--grow)", "stroke-width": 1.5, opacity: .7 }));
} else {
M.forEach((m, i) => {
const x = L + i * band + (band - bw) / 2, part = i === PARTIAL;
const d = bar(x, bw, Y(0), Y(m[key]), 4, true); if (!d) return;
svg.append(el("path", { d, fill: part ? "none" : "var(--grow)",
stroke: part ? "var(--grow)" : "none", "stroke-width": part ? 1.5 : 0,
"stroke-dasharray": part ? "3 2" : "" }));
});
}
const iL = PARTIAL - 1, mL = M[iL];
const lab = el("text", { x: cx(iL), y: Y(mL[key]) - 10, class: "dlabel", "text-anchor": "middle" });
lab.textContent = fmt(mL[key]); svg.append(lab);
M.forEach((m, i) => {
if (i % 3 === 0) {
const t = el("text", { x: cx(i), y: H - 10, "text-anchor": "middle", class: "tick" });
t.textContent = fmtM(m.month); svg.append(t);
}
const hit = el("rect", { x: L + i * band, y: T, width: band, height: ph, fill: "transparent" });
hit.addEventListener("pointermove", e => showTip(e,
"<b>" + fmtM(m.month) + (i === PARTIAL ? " (8 days)" : "") + "</b>" + rowsFor(m)));
hit.addEventListener("pointerleave", hideTip);
svg.append(hit);
});
}
small("c3", "active", 140, [0, 35, 70, 105, 140], v => v, "bar");
/* ---------- table ---------- */
document.getElementById("tbody").innerHTML = M.map((m, i) => {
const net = m.joined - m.left;
return "<tr><td>" + fmtM(m.month) + (i === PARTIAL ? " (8d)" : "") + "</td><td>" + m.members +
"</td><td>+" + m.joined + "</td><td>" + (m.left ? "−" + m.left : "0") +
"</td><td>" + (net > 0 ? "+" : "") + net + "</td><td>" + m.active +
"</td><td>" + m.msgs.toLocaleString() + "</td></tr>";
}).join("");
</script>
</body>
</html>
|