Initial commit: webtrees full diagram chart module

Interactive SVG family tree visualization using ELK (Sugiyama) for
layout and D3 for rendering. Shows ancestors, descendants, and siblings
in a single diagram with orthogonal bus-line connectors.

Features:
- Bidirectional tree traversal (ancestors + descendants + siblings)
- Generation-aligned layout with post-processing Y-snap
- Person cards with photos, names, dates, and hover bio cards
- "More ancestors" indicator for persons with hidden parents
- Pan/zoom navigation
- Docker dev environment
This commit is contained in:
2026-03-14 18:51:19 +01:00
commit 273e398431
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# Exclude dev files from distribution ZIP
node_modules/ export-ignore
docker/ export-ignore
resources/js/modules/ export-ignore
.github/ export-ignore
.gitattributes export-ignore
.gitignore export-ignore
package.json export-ignore
package-lock.json export-ignore
rollup.config.js export-ignore
composer.json export-ignore
CLAUDE.md export-ignore
todo/ export-ignore

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node_modules/
.build/
vendor/
dist/
*.log
.DS_Store
.env
docker/.env

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# Full Diagram - webtrees Chart Module
## Project Overview
webtrees 2.2 chart module that visualizes the entire family tree (ancestors, descendants, siblings) in a single interactive SVG diagram. Inspired by MyHeritage "Family View".
## Tech Stack
- **PHP 8.2+** — webtrees 2.2 module (extends AbstractModule, implements ModuleChartInterface + ModuleCustomInterface)
- **Namespace**: `FullDiagram\`
- **D3.js v7** (cherry-picked: d3-hierarchy, d3-selection, d3-zoom, d3-shape, d3-transition) — SVG rendering
- **Rollup** — JS bundling
- **Docker Compose** — local dev (webtrees + MariaDB)
## Key Conventions
- PSR-4 autoloading: `FullDiagram\``src/`
- Views in `resources/views/modules/full-diagram/`
- JS source in `resources/js/modules/`, built to `resources/js/full-diagram.min.js`
- CSS in `resources/css/full-diagram.css`
- Route pattern: `/tree/{tree}/full-diagram/{xref}`
## Development
```bash
# Start dev environment
cd docker && docker compose up -d
# JS development
npm install && npm run watch
# Build for release
npm run prepare
```
## Architecture
- `module.php` — entry point, autoloads namespace, returns Module instance
- `src/Module.php` — route registration, request handling, view rendering
- `src/Configuration.php` — generation limits, display toggles
- `src/Facade/DataFacade.php` — bidirectional tree traversal (ancestors + descendants + siblings)
- `src/Model/NodeData.php` — person data (JsonSerializable)
- `src/Model/FamilyNode.php` — family unit: couple + children
- JS uses dual d3.tree() layout: ancestors upward, descendants downward, stitched at root
## Important Notes
- webtrees uses `view()` helper for templates with `::` namespace syntax
- Route registration uses `Registry::routeFactory()` in `boot()`
- Access control via `Auth::checkComponentAccess()`
- Individual data accessed via `$individual->facts()`, `childFamilies()`, `spouseFamilies()`

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DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

31
composer.json Normal file
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@@ -0,0 +1,31 @@
{
"name": "alex/webtrees-full-diagram",
"description": "Full family diagram chart module for webtrees — shows ancestors, descendants, and siblings in a single interactive SVG diagram.",
"license": "GPL-3.0-or-later",
"type": "webtrees-module",
"keywords": [
"webtrees",
"module",
"chart",
"family-tree",
"diagram"
],
"authors": [
{
"name": "Alex",
"role": "Developer"
}
],
"minimum-stability": "dev",
"prefer-stable": true,
"require": {
"php": ">=8.2",
"ext-json": "*",
"fisharebest/webtrees": "~2.2.0 || dev-main"
},
"autoload": {
"psr-4": {
"FullDiagram\\": "src/"
}
}
}

4
docker/.env.example Normal file
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@@ -0,0 +1,4 @@
MYSQL_ROOT_PASSWORD=root
MYSQL_DATABASE=webtrees
MYSQL_USER=webtrees
MYSQL_PASSWORD=webtrees

43
docker/docker-compose.yml Normal file
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@@ -0,0 +1,43 @@
services:
webtrees:
image: ghcr.io/nathanvaughn/webtrees:latest
ports:
- "8081:80"
environment:
PRETTY_URLS: "TRUE"
LANG: "en-US"
BASE_URL: "http://localhost:8081"
DB_TYPE: "mysql"
DB_HOST: "db"
DB_PORT: "3306"
DB_NAME: "webtrees"
DB_USER: "webtrees"
DB_PASS: "webtrees"
volumes:
- webtrees_data:/var/www/webtrees/data
- ..:/var/www/webtrees/modules_v4/full-diagram
- /home/alex/.local/src/webtrees_bocken_theme/BockenTheme:/var/www/webtrees/modules_v4/BockenTheme
depends_on:
db:
condition: service_healthy
restart: unless-stopped
db:
image: mariadb:11
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: webtrees
MYSQL_USER: webtrees
MYSQL_PASSWORD: webtrees
volumes:
- db_data:/var/lib/mysql
healthcheck:
test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
interval: 10s
timeout: 5s
retries: 5
restart: unless-stopped
volumes:
webtrees_data:
db_data:

21
module.php Normal file
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@@ -0,0 +1,21 @@
<?php
/**
* Full Diagram module for webtrees.
*
* @license GPL-3.0-or-later
*/
declare(strict_types=1);
namespace FullDiagram;
use Composer\Autoload\ClassLoader;
use Fisharebest\Webtrees\Registry;
// Register PSR-4 autoloader for our namespace
$loader = new ClassLoader();
$loader->addPsr4('FullDiagram\\', __DIR__ . '/src');
$loader->register();
return Registry::container()->get(Module::class);

990
package-lock.json generated Normal file
View File

@@ -0,0 +1,990 @@
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23
package.json Normal file
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{
"name": "webtrees-full-diagram",
"version": "0.2.0",
"private": true,
"type": "module",
"scripts": {
"build": "rollup -c",
"watch": "rollup -c --watch",
"prepare": "npm run build"
},
"devDependencies": {
"@rollup/plugin-node-resolve": "^16.0.3",
"@rollup/plugin-terser": "^0.4.4",
"rollup": "^4.9.0"
},
"dependencies": {
"@rollup/plugin-commonjs": "^29.0.2",
"d3-selection": "^3.0.0",
"d3-transition": "^3.0.1",
"d3-zoom": "^3.0.0",
"elkjs": "^0.11.1"
}
}

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/* Full Diagram Chart Styles */
/* ── Container ── */
.full-diagram-container {
position: relative;
border: 1px solid #dee2e6;
border-radius: 0.5rem;
background: #f8f9fa;
overflow: hidden;
}
.full-diagram-chart {
width: 100%;
height: 100%;
}
.full-diagram-chart svg {
width: 100%;
height: 100%;
display: block;
}
/* ── Person cards (SVG) ── */
.person-card rect {
fill: #e8e8e8;
stroke: #b0b0b0;
stroke-width: 1;
}
.person-card.sex-m rect {
fill: #d4e6f9;
stroke: #7bafd4;
}
.person-card.sex-f rect {
fill: #f9d4e6;
stroke: #d47ba8;
}
.person-card.is-root rect {
stroke: #495057;
stroke-width: 2.5;
filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.2));
}
.person-card:hover rect {
filter: drop-shadow(0 3px 8px rgba(0, 0, 0, 0.15));
}
/* Photo placeholder */
.person-card .photo-placeholder {
fill: #ddd;
stroke: none;
}
.person-card.sex-m .photo-placeholder {
fill: #b8d4ed;
}
.person-card.sex-f .photo-placeholder {
fill: #edb8d4;
}
.person-card .silhouette {
fill: rgba(255, 255, 255, 0.6);
}
/* Card text */
.person-card .person-name {
font-size: 12px;
font-weight: 600;
fill: #212529;
dominant-baseline: auto;
}
.person-card .person-dates {
font-size: 10px;
fill: #6c757d;
dominant-baseline: auto;
}
.person-card .person-subtitle {
font-size: 9px;
fill: #868e96;
font-style: italic;
dominant-baseline: auto;
}
/* ── More ancestors indicator ── */
.more-ancestors-indicator rect {
fill: #dee2e6;
stroke: #adb5bd;
stroke-width: 1;
}
.more-ancestors-indicator line {
stroke: #adb5bd;
stroke-width: 1.5;
}
.person-card.sex-m .more-ancestors-indicator rect {
fill: #c4d9f0;
stroke: #7bafd4;
}
.person-card.sex-f .more-ancestors-indicator rect {
fill: #f0c4d9;
stroke: #d47ba8;
}
/* ── Connector lines ── */
.link {
fill: none;
stroke: #adb5bd;
stroke-width: 1.5;
}
.couple-link {
stroke: #868e96;
stroke-width: 2;
}
.ancestor-link {
stroke: #adb5bd;
}
.descendant-link {
stroke: #adb5bd;
}
/* ── Bio card tooltip ── */
.bio-card {
position: absolute;
z-index: 1000;
background: #fff;
border: 1px solid #dee2e6;
border-radius: 8px;
box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
padding: 12px;
min-width: 220px;
max-width: 300px;
font-size: 12px;
color: #212529;
pointer-events: auto;
}
.bio-header {
display: flex;
gap: 10px;
margin-bottom: 8px;
align-items: center;
}
.bio-photo {
width: 50px;
height: 50px;
border-radius: 50%;
object-fit: cover;
flex-shrink: 0;
}
.bio-header-text {
flex: 1;
min-width: 0;
}
.bio-name {
font-weight: 600;
font-size: 14px;
line-height: 1.2;
}
.bio-age {
font-size: 11px;
color: #6c757d;
margin-top: 2px;
}
.bio-facts {
border-top: 1px solid #eee;
padding-top: 6px;
}
.bio-fact {
display: flex;
gap: 6px;
margin-bottom: 3px;
line-height: 1.4;
}
.bio-fact-label {
font-weight: 600;
color: #495057;
white-space: nowrap;
}
.bio-fact-label::after {
content: ":";
}
.bio-fact-value {
color: #6c757d;
}
.bio-link {
display: block;
margin-top: 8px;
padding-top: 6px;
border-top: 1px solid #eee;
color: #4a90d9;
text-decoration: none;
font-size: 11px;
}
.bio-link:hover {
text-decoration: underline;
}
/* ── Zoom controls ── */
.zoom-controls {
position: absolute;
bottom: 12px;
right: 12px;
display: flex;
flex-direction: column;
gap: 4px;
z-index: 10;
}
.zoom-controls button {
width: 32px;
height: 32px;
border: 1px solid #dee2e6;
border-radius: 4px;
background: rgba(255, 255, 255, 0.9);
color: #495057;
font-size: 16px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
padding: 0;
line-height: 1;
}
.zoom-controls button:hover {
background: #e9ecef;
}
/* ── Print styles ── */
@media print {
.full-diagram-container {
border: none;
height: auto !important;
overflow: visible;
}
.zoom-controls {
display: none;
}
}

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/**
* Chart configuration defaults.
*/
export default class Configuration {
constructor() {
this.cardWidth = 200;
this.cardHeight = 80;
this.cardPadding = 10;
this.horizontalSpacing = 30;
this.verticalSpacing = 40;
this.siblingSpacing = 30;
this.duration = 500;
}
}

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/**
* Data loading and management.
*/
export default class DataLoader {
constructor(baseUrl) {
this.baseUrl = baseUrl;
}
/**
* Load tree data for a specific individual via AJAX.
*
* @param {string} xref
* @param {object} params
* @returns {Promise<object>}
*/
async load(xref, params = {}) {
const url = new URL(this.baseUrl.replace("__XREF__", xref), window.location.origin);
url.searchParams.set("ajax", "1");
for (const [key, value] of Object.entries(params)) {
url.searchParams.set(key, String(value));
}
const response = await fetch(url.toString(), {
headers: { Accept: "application/json" },
});
if (!response.ok) {
throw new Error(`Failed to load data: ${response.status}`);
}
const result = await response.json();
return result.data;
}
/**
* Navigate to a person's chart page.
*
* @param {string} xref
*/
navigateTo(xref) {
window.location.href = this.baseUrl.replace("__XREF__", xref);
}
}

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/**
* Dual-tree D3 hierarchy builder.
*
* Converts the PHP-generated tree data into two D3 hierarchies:
* - Ancestor tree (root at bottom, growing upward)
* - Descendant tree (root at top, growing downward)
*
* Both share the root node at (0, 0) and are merged for rendering.
*
* After D3 layout:
* 1. Shift descendant subtrees so children center under the couple midpoint
* 2. Compute spouse positions at every level
* 3. Resolve all overlaps (person nodes, spouses, siblings) by pushing
* cards apart and propagating shifts to subtrees
*/
import { tree, hierarchy } from "../lib/d3.js";
import { computeSpouseOffset, SPOUSE_GAP } from "../lib/tree/spouse-util.js";
// ─── Ancestor hierarchy ──────────────────────────────────────────────
export function buildAncestorHierarchy(rootData) {
if (!rootData.parents || rootData.parents.length === 0) {
return null;
}
const root = prepareAncestorNode(rootData);
return hierarchy(root, (d) => d._ancestorChildren);
}
function prepareAncestorNode(person) {
const node = { ...person };
if (person.parents && person.parents.length > 0) {
node._ancestorChildren = person.parents.map((p) => prepareAncestorNode(p));
}
return node;
}
// ─── Descendant hierarchy ────────────────────────────────────────────
export function buildDescendantHierarchy(rootData) {
if (!rootData.families || rootData.families.length === 0) {
return null;
}
const root = prepareDescendantNode(rootData);
return hierarchy(root, (d) => d._descendantChildren);
}
function prepareDescendantNode(person) {
const node = { ...person };
const children = [];
if (person.families) {
for (let fi = 0; fi < person.families.length; fi++) {
const family = person.families[fi];
for (const child of family.children || []) {
const childNode = prepareDescendantNode(child);
childNode._familyIndex = fi;
children.push(childNode);
}
}
}
if (children.length > 0) {
node._descendantChildren = children;
}
return node;
}
// ─── Layout computation ──────────────────────────────────────────────
export function computeLayout(ancestorHierarchy, descendantHierarchy, config) {
const nodeWidth = config.cardWidth + config.horizontalSpacing;
const nodeHeight = config.cardHeight + config.verticalSpacing;
const treeLayout = tree().nodeSize([nodeWidth, nodeHeight]);
const result = {
ancestors: [],
descendants: [],
ancestorLinks: [],
descendantLinks: [],
};
// ── Ancestor tree (grows upward) ──
if (ancestorHierarchy) {
treeLayout(ancestorHierarchy);
ancestorHierarchy.each((node) => {
node.y = -Math.abs(node.y);
if (node.depth > 0) result.ancestors.push(node);
});
ancestorHierarchy.links().forEach((link) => {
result.ancestorLinks.push(link);
});
}
// ── Descendant tree (grows downward) ──
if (descendantHierarchy) {
treeLayout(descendantHierarchy);
// Step 1: shift children to center under couple midpoints
shiftChildrenToCoupleCenter(descendantHierarchy, config);
// Step 2: resolve overlaps between all cards on the same row
// (person nodes + their spouse cards)
resolveDescendantOverlaps(descendantHierarchy, config);
descendantHierarchy.each((node) => {
if (node.depth > 0) result.descendants.push(node);
});
descendantHierarchy.links().forEach((link) => {
result.descendantLinks.push(link);
});
}
return result;
}
// ─── Couple-center shifting ──────────────────────────────────────────
function shiftChildrenToCoupleCenter(root, config) {
// Process bottom-up so nested shifts accumulate correctly
root.each((node) => {
const data = node.data;
if (!data.families || data.families.length === 0 || !node.children) return;
if (data.families.length === 1) {
const family = data.families[0];
if (family.spouse) {
const shift = computeSpouseOffset(0, config.cardWidth, SPOUSE_GAP) / 2;
for (const child of node.children) {
shiftSubtree(child, shift);
}
}
return;
}
for (const child of node.children) {
const fi = child.data._familyIndex;
if (fi === undefined) continue;
const family = data.families[fi];
if (family && family.spouse) {
const shift = computeSpouseOffset(fi, config.cardWidth, SPOUSE_GAP) / 2;
shiftSubtree(child, shift);
}
}
});
}
function shiftSubtree(node, dx) {
node.x += dx;
if (node.children) {
for (const child of node.children) {
shiftSubtree(child, dx);
}
}
}
// ─── Overlap resolution ──────────────────────────────────────────────
/**
* Collect every card rectangle that will be rendered on each row
* (person nodes + spouse cards), detect overlaps, and push apart.
*
* When a person node is pushed, its entire descendant subtree moves too.
*
* Strategy: for each depth row, build a sorted list of "card groups"
* (a person + all their spouses form one rigid group). Then do a single
* left-to-right sweep pushing groups apart when they overlap.
*/
function resolveDescendantOverlaps(root, config) {
const w = config.cardWidth;
const minGap = 20;
// Gather hierarchy nodes by depth
const depthMap = new Map();
root.each((node) => {
if (!depthMap.has(node.depth)) depthMap.set(node.depth, []);
depthMap.get(node.depth).push(node);
});
const depths = [...depthMap.keys()].sort((a, b) => a - b);
for (const depth of depths) {
const nodesAtDepth = depthMap.get(depth);
// Build card groups: each person node + their spouses as a rigid unit
// A group has a leftEdge and rightEdge computed from all its cards.
const groups = [];
for (const node of nodesAtDepth) {
const xs = [node.x]; // person card center
const data = node.data;
if (data.families) {
for (let fi = 0; fi < data.families.length; fi++) {
if (data.families[fi].spouse) {
xs.push(node.x + computeSpouseOffset(fi, w, SPOUSE_GAP));
}
}
}
const leftEdge = Math.min(...xs) - w / 2;
const rightEdge = Math.max(...xs) + w / 2;
groups.push({ node, leftEdge, rightEdge, centerX: node.x });
}
// Sort by the left edge of each group
groups.sort((a, b) => a.leftEdge - b.leftEdge);
// Single left-to-right sweep: push groups apart
for (let i = 1; i < groups.length; i++) {
const prev = groups[i - 1];
const curr = groups[i];
const overlap = prev.rightEdge + minGap - curr.leftEdge;
if (overlap > 0) {
// Push current group (and its subtree) right
shiftSubtree(curr.node, overlap);
curr.leftEdge += overlap;
curr.rightEdge += overlap;
curr.centerX += overlap;
}
}
}
}
// ─── Sibling positions ───────────────────────────────────────────────
/**
* Compute sibling positions at the same Y-level as root (0).
*
* Siblings are placed to the right of root. If the root has spouses,
* siblings start after the rightmost spouse to avoid overlap.
*/
export function computeSiblingPositions(rootData, config) {
const siblings = [];
const links = [];
if (!rootData.siblings || rootData.siblings.length === 0) {
return { siblings, links };
}
// Find the rightmost occupied X at root level (root card + any spouses)
let maxRootX = config.cardWidth / 2; // right edge of root card
if (rootData.families) {
for (let fi = 0; fi < rootData.families.length; fi++) {
if (rootData.families[fi].spouse) {
const spouseX = computeSpouseOffset(fi, config.cardWidth, SPOUSE_GAP);
const spouseRight = spouseX + config.cardWidth / 2;
maxRootX = Math.max(maxRootX, spouseRight);
}
}
}
const startX = maxRootX + config.siblingSpacing;
rootData.siblings.forEach((sibling, index) => {
const x = startX + index * (config.cardWidth + config.siblingSpacing);
const y = 0;
siblings.push({ x, y, data: sibling });
links.push({ source: { x: 0, y: 0 }, target: { x, y } });
});
return { siblings, links };
}

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/**
* Full Diagram — entry point.
*
* Reads embedded data from the page and initializes the chart.
*/
import Chart from "./lib/chart.js";
async function init() {
const data = window.fullDiagramData;
const baseUrl = window.fullDiagramBaseUrl;
if (!data || !data.persons) {
console.error("Full Diagram: No tree data found.");
return;
}
try {
const chart = new Chart("#full-diagram-container", data, baseUrl);
await chart.render();
} catch (err) {
console.error("Full Diagram: Render failed", err);
}
}
// Initialize when DOM is ready
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", init);
} else {
init();
}

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/**
* Main chart orchestrator.
*
* Uses ELK for layout (Sugiyama / union-node pattern) and D3 for
* SVG rendering with clean orthogonal bus-line connectors.
*/
import { computeElkLayout } from "./layout/elk-layout.js";
import { createSvg, getCanvas } from "./chart/svg.js";
import { initZoom, createZoomControls } from "./chart/zoom.js";
import { renderPersonCard } from "./chart/box.js";
import { hideTooltip } from "./chart/overlay.js";
import { zoomIdentity } from "./d3.js";
export default class Chart {
constructor(containerSelector, data, baseUrl) {
this.containerSelector = containerSelector;
this.data = data;
this.config = {
cardWidth: 200,
cardHeight: 80,
horizontalSpacing: 30,
verticalSpacing: 60,
};
this.baseUrl = baseUrl;
}
async render() {
const ctr = this.containerSelector;
const chartSelector = `${ctr} .full-diagram-chart`;
const svg = createSvg(chartSelector);
this.svg = svg;
const zoomBehavior = initZoom(svg);
this.zoomBehavior = zoomBehavior;
svg.on("zoom.tooltip", () => hideTooltip());
createZoomControls(ctr, svg, zoomBehavior);
const canvas = getCanvas(svg);
// Compute layout using ELK
const layout = await computeElkLayout(
this.data.persons,
this.data.mainId,
this.config
);
// Click handler
const baseUrl = this.baseUrl;
const onNodeClick = (data) => {
hideTooltip();
const url = baseUrl.replace("__XREF__", data.id);
window.location.href = url;
};
// Draw connections first (behind cards)
this.renderConnections(canvas, layout);
// Draw person cards
for (const person of layout.persons) {
renderPersonCard(canvas, person, this.config, onNodeClick, ctr);
}
// Center on root
this.centerOnRoot();
}
renderConnections(canvas, layout) {
const linkGroup = canvas.append("g").attr("class", "edges");
for (const conn of layout.connections) {
linkGroup
.append("path")
.attr("class", conn.cssClass)
.attr("d", conn.path);
}
}
centerOnRoot() {
const { width, height } = this.svg.node().getBoundingClientRect();
this.svg
.transition()
.duration(500)
.call(
this.zoomBehavior.transform,
zoomIdentity.translate(width / 2, height / 2)
);
}
}

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/**
* Person card (box) renderer.
*
* Shows first + last name (middle names dropped to save space).
* Profile picture displayed if available, otherwise a gendered silhouette.
* Hover shows a rich bio card with dates, places, occupation, age.
*/
import { attachHoverBioCard } from "./overlay.js";
/**
* Render a person card as an SVG group.
*
* @param {d3.Selection} parent - The parent SVG group to append to
* @param {object} person - { x, y, id, isMain, data: { gender, "first name", ... } }
* @param {object} config
* @param {Function} onClick - Click handler receiving { id, data }
* @param {string} containerSelector - Selector for the chart container (for tooltip positioning)
* @returns {d3.Selection}
*/
export function renderPersonCard(parent, person, config, onClick, containerSelector) {
const data = person.data;
const w = config.cardWidth;
const h = config.cardHeight;
const sexClass = `sex-${(data.gender || "u").toLowerCase()}`;
const rootClass = person.isMain ? "is-root" : "";
const g = parent
.append("g")
.attr("class", `person-card ${sexClass} ${rootClass}`.trim())
.attr("transform", `translate(${person.x - w / 2}, ${person.y - h / 2})`)
.style("cursor", "pointer")
.on("click", (event) => {
event.stopPropagation();
onClick({ id: person.id, data });
});
// Card background
g.append("rect")
.attr("width", w)
.attr("height", h)
.attr("rx", 8)
.attr("ry", 8);
// Photo area (left side)
const photoSize = 50;
const photoX = 8;
const photoY = (h - photoSize) / 2;
const textXOffset = photoX + photoSize + 10;
// Clip path for circular photo
const clipId = `clip-${person.id}-${Math.random().toString(36).slice(2, 8)}`;
g.append("clipPath")
.attr("id", clipId)
.append("circle")
.attr("cx", photoX + photoSize / 2)
.attr("cy", photoY + photoSize / 2)
.attr("r", photoSize / 2 - 2);
if (data.avatar) {
// Profile picture
g.append("image")
.attr("href", data.avatar)
.attr("x", photoX)
.attr("y", photoY)
.attr("width", photoSize)
.attr("height", photoSize)
.attr("preserveAspectRatio", "xMidYMid slice")
.attr("clip-path", `url(#${clipId})`);
} else {
// Silhouette placeholder circle
g.append("circle")
.attr("cx", photoX + photoSize / 2)
.attr("cy", photoY + photoSize / 2)
.attr("r", photoSize / 2 - 2)
.attr("class", "photo-placeholder");
// Simple silhouette icon
const cx = photoX + photoSize / 2;
const cy = photoY + photoSize / 2;
// Head
g.append("circle")
.attr("cx", cx)
.attr("cy", cy - 6)
.attr("r", 8)
.attr("class", "silhouette");
// Body
g.append("ellipse")
.attr("cx", cx)
.attr("cy", cy + 14)
.attr("rx", 12)
.attr("ry", 9)
.attr("class", "silhouette");
}
// Name: first + last (drop middle names)
const firstName = data["first name"] || "";
const lastName = data["last name"] || "";
const displayName = formatDisplayName(firstName, lastName, data.fullName);
const maxTextWidth = w - textXOffset - 8;
g.append("text")
.attr("class", "person-name")
.attr("x", textXOffset)
.attr("y", h / 2 - 10)
.text(truncateText(displayName, maxTextWidth));
// Dates line
const dates = formatDates(data.birthYear, data.deathYear, data.isDead);
if (dates) {
g.append("text")
.attr("class", "person-dates")
.attr("x", textXOffset)
.attr("y", h / 2 + 6)
.text(dates);
}
// Occupation as a third line
const subtitle = data.occupation || "";
if (subtitle) {
g.append("text")
.attr("class", "person-subtitle")
.attr("x", textXOffset)
.attr("y", h / 2 + 20)
.text(truncateText(subtitle, maxTextWidth));
}
// "More ancestors" indicator — two small parent boxes at top-right
if (data.hasMoreAncestors) {
const ig = g.append("g").attr("class", "more-ancestors-indicator");
// Positioning: top-right of card, protruding above
const bw = 10; // mini box width
const bh = 7; // mini box height
const gap = 4; // gap between boxes
const cx = w - 25; // center X of the indicator
const topY = -14; // top of mini boxes (above card)
const leftX = cx - gap / 2 - bw;
const rightX = cx + gap / 2;
// Two small rectangles (parents)
ig.append("rect")
.attr("x", leftX).attr("y", topY)
.attr("width", bw).attr("height", bh)
.attr("rx", 2).attr("ry", 2);
ig.append("rect")
.attr("x", rightX).attr("y", topY)
.attr("width", bw).attr("height", bh)
.attr("rx", 2).attr("ry", 2);
// Horizontal bar connecting the two boxes at their bottom center
const barY = topY + bh;
ig.append("line")
.attr("x1", leftX + bw / 2).attr("y1", barY)
.attr("x2", rightX + bw / 2).attr("y2", barY);
// Vertical line from bar center down to card top edge
ig.append("line")
.attr("x1", cx).attr("y1", barY)
.attr("x2", cx).attr("y2", 0);
}
// Attach hover bio card
if (containerSelector) {
attachHoverBioCard(g, data, containerSelector);
}
return g;
}
/**
* Format display name: first name + last name, dropping middle names.
* Handles GEDCOM placeholders: @N.N. = unknown name, @P.N. = unknown given name
*/
function formatDisplayName(firstName, lastName, fullName) {
// Clean GEDCOM unknown-name placeholders
const cleanFirst = firstName && !firstName.match(/^@[A-Z]\.N\.$/) ? firstName : "";
const cleanLast = lastName && !lastName.match(/^@[A-Z]\.N\.$/) ? lastName : "";
if (!cleanFirst && !cleanLast) {
// Also clean fullName of @N.N. patterns
const cleanFull = fullName ? fullName.replace(/@[A-Z]\.N\./g, "\u2026").trim() : "";
return cleanFull || "???";
}
// Take only the first given name (drop middle names)
const firstOnly = cleanFirst ? cleanFirst.split(/\s+/)[0] : "";
if (firstOnly && cleanLast) {
return `${firstOnly} ${cleanLast}`;
}
return firstOnly || cleanLast || "???";
}
function truncateText(text, maxWidth) {
// ~7px per character at 12px font
const maxChars = Math.floor(maxWidth / 7);
if (!text || text.length <= maxChars) return text || "";
return text.substring(0, maxChars - 1) + "\u2026";
}
function formatDates(birth, death, isDead) {
if (!birth && !death) return "";
if (birth && death) return `${birth}\u2013${death}`;
if (birth && isDead) return `${birth}\u2013?`;
if (birth) return `* ${birth}`;
return `\u2020 ${death}`;
}

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/**
* Bio card tooltip on hover.
*
* Shows: full name, profile photo, birth, baptism, marriage, death,
* occupation, residence, current age (if alive) or age at death.
*/
import { select } from "../d3.js";
let activeTooltip = null;
let hideTimer = null;
/**
* Show a bio card tooltip for a person.
*
* @param {object} data - Person data
* @param {SVGElement} cardElement - The SVG card group element
* @param {string} containerSelector
*/
export function showBioCard(data, cardElement, containerSelector) {
hideTooltip();
const container = select(containerSelector);
const containerRect = container.node().getBoundingClientRect();
const cardRect = cardElement.getBoundingClientRect();
// Position tooltip below the card, centered
const left = cardRect.left - containerRect.left + cardRect.width / 2;
const top = cardRect.bottom - containerRect.top + 8;
const tooltip = container
.append("div")
.attr("class", "bio-card")
.style("left", `${left}px`)
.style("top", `${top}px`)
.style("transform", "translateX(-50%)")
.on("mouseenter", () => clearTimeout(hideTimer))
.on("mouseleave", () => scheduleHide());
// Header: photo + name
const header = tooltip.append("div").attr("class", "bio-header");
if (data.avatar) {
header
.append("img")
.attr("src", data.avatar)
.attr("alt", data.fullName || "")
.attr("class", "bio-photo");
}
const headerText = header.append("div").attr("class", "bio-header-text");
headerText.append("div").attr("class", "bio-name").text(data.fullName || "???");
// Age
const ageText = computeAge(data);
if (ageText) {
headerText.append("div").attr("class", "bio-age").text(ageText);
}
// Facts list
const facts = tooltip.append("div").attr("class", "bio-facts");
addFact(facts, "Born", data.birthDate, data.birthPlace);
addFact(facts, "Baptism", data.baptismDate);
addFact(facts, "Marriage", data.marriageDate);
addFact(facts, "Died", data.deathDate, data.deathPlace);
addFact(facts, "Occupation", data.occupation);
addFact(facts, "Residence", data.residence);
// Link to profile
tooltip
.append("a")
.attr("href", data.url)
.attr("class", "bio-link")
.text("View profile \u2192");
activeTooltip = tooltip;
}
function addFact(container, label, value, place) {
if (!value && !place) return;
const row = container.append("div").attr("class", "bio-fact");
row.append("span").attr("class", "bio-fact-label").text(label);
let display = value || "";
if (place) {
display += display ? `, ${place}` : place;
}
row.append("span").attr("class", "bio-fact-value").text(display);
}
function computeAge(data) {
if (!data.birthYear) return "";
const birthYear = parseInt(data.birthYear, 10);
if (isNaN(birthYear)) return "";
if (data.isDead) {
if (data.deathYear) {
const deathYear = parseInt(data.deathYear, 10);
if (!isNaN(deathYear)) {
const age = deathYear - birthYear;
return `Died at age ${age}`;
}
}
return "Deceased";
}
const currentYear = new Date().getFullYear();
const age = currentYear - birthYear;
return `Age ~${age}`;
}
function scheduleHide() {
hideTimer = setTimeout(hideTooltip, 300);
}
/**
* Hide the active tooltip.
*/
export function hideTooltip() {
clearTimeout(hideTimer);
if (activeTooltip) {
activeTooltip.remove();
activeTooltip = null;
}
}
/**
* Attach hover behavior to a person card group.
*
* @param {d3.Selection} cardGroup - The SVG <g> for the person card
* @param {object} data - Person data
* @param {string} containerSelector
*/
export function attachHoverBioCard(cardGroup, data, containerSelector) {
cardGroup
.on("mouseenter", function () {
clearTimeout(hideTimer);
showBioCard(data, this, containerSelector);
})
.on("mouseleave", () => {
scheduleHide();
});
}

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/**
* SVG container setup.
*/
import { select } from "../d3.js";
/**
* Create the main SVG element within the container.
*
* @param {string} selector - CSS selector for the container element
* @returns {d3.Selection} The SVG selection
*/
export function createSvg(selector) {
const container = select(selector);
const { width, height } = container.node().getBoundingClientRect();
const svg = container
.append("svg")
.attr("width", width)
.attr("height", height)
.attr("viewBox", `0 0 ${width} ${height}`);
// Main group that will be transformed by zoom/pan
svg.append("g").attr("class", "full-diagram-canvas");
return svg;
}
/**
* Get the canvas group (the zoomable/pannable layer).
*
* @param {d3.Selection} svg
* @returns {d3.Selection}
*/
export function getCanvas(svg) {
return svg.select("g.full-diagram-canvas");
}
/**
* Center the canvas on the root node.
*
* @param {d3.Selection} svg
* @param {d3.ZoomBehavior} zoomBehavior
*/
export function centerOnRoot(svg, zoomBehavior) {
const { width, height } = svg.node().getBoundingClientRect();
const initialTransform = {
x: width / 2,
y: height / 2,
k: 1,
};
svg.call(
zoomBehavior.transform,
() =>
new DOMMatrix()
.translate(initialTransform.x, initialTransform.y)
.scale(initialTransform.k)
);
}

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/**
* Pan and zoom behavior via d3-zoom.
*/
import { zoom, zoomIdentity, select } from "../d3.js";
import { getCanvas } from "./svg.js";
/**
* Initialize zoom behavior on the SVG element.
*
* @param {d3.Selection} svg
* @returns {d3.ZoomBehavior}
*/
export function initZoom(svg) {
const canvas = getCanvas(svg);
const zoomBehavior = zoom()
.scaleExtent([0.1, 4])
.on("zoom", (event) => {
canvas.attr("transform", event.transform);
});
svg.call(zoomBehavior);
// Disable double-click zoom (we use click for navigation)
svg.on("dblclick.zoom", null);
return zoomBehavior;
}
/**
* Create zoom control buttons.
*
* @param {string} containerSelector
* @param {d3.Selection} svg
* @param {d3.ZoomBehavior} zoomBehavior
*/
export function createZoomControls(containerSelector, svg, zoomBehavior) {
const container = select(containerSelector);
const controls = container
.append("div")
.attr("class", "zoom-controls");
controls
.append("button")
.attr("type", "button")
.attr("title", "Zoom in")
.text("+")
.on("click", () => svg.transition().duration(300).call(zoomBehavior.scaleBy, 1.3));
controls
.append("button")
.attr("type", "button")
.attr("title", "Zoom out")
.text("\u2212")
.on("click", () => svg.transition().duration(300).call(zoomBehavior.scaleBy, 0.7));
controls
.append("button")
.attr("type", "button")
.attr("title", "Reset view")
.text("\u21BA")
.on("click", () => {
const { width, height } = svg.node().getBoundingClientRect();
svg.transition()
.duration(500)
.call(
zoomBehavior.transform,
zoomIdentity.translate(width / 2, height / 2)
);
});
}

6
resources/js/modules/lib/d3.js vendored Normal file
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/**
* Cherry-picked D3 module re-exports.
*/
export { select, selectAll } from "d3-selection";
export { zoom, zoomIdentity } from "d3-zoom";
import "d3-transition";

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/**
* ELK (Eclipse Layout Kernel) based family tree layout.
*
* Uses the union-node pattern with ELK's Sugiyama algorithm for
* guaranteed overlap-free positioning. Connector lines are drawn
* manually using clean orthogonal bus lines (not ELK's edge routing).
*
* Post-processing snaps all people of the same generation to the same
* Y coordinate and repositions union nodes between generation rows.
* Spouse-grouped node ordering keeps couples placed close together.
*
* Input: flat person array with rels { parents, spouses, children }
* Output: positioned persons + orthogonal connector paths
*/
import ELK from "elkjs/lib/elk.bundled.js";
const elk = new ELK();
/**
* @param {Array} persons - Flat array of { id, data, rels }
* @param {string} mainId - Root person ID
* @param {object} config - Card dimensions and spacing
* @returns {Promise<LayoutResult>}
*/
export async function computeElkLayout(persons, mainId, config) {
const builder = new GraphBuilder(persons, mainId, config);
builder.build();
const graph = builder.buildElkGraph();
const result = await elk.layout(graph);
return extractPositions(result, builder, config);
}
// ─── Graph Builder ───────────────────────────────────────────────────
class GraphBuilder {
constructor(persons, mainId, config) {
this.config = config;
this.personById = new Map();
for (const p of persons) {
this.personById.set(p.id, p);
}
this.mainId = mainId;
this.nodes = new Map(); // id → { id, type, data }
this.edges = [];
this.unionCounter = 0;
// Track which family units we've already created union nodes for
// key = sorted parent IDs joined, value = union node id
this.familyUnions = new Map();
// Generation number per person (0 = main, negative = ancestors, positive = descendants)
this.generations = new Map();
}
build() {
// Add all persons as nodes
for (const [id, person] of this.personById) {
this.nodes.set(id, {
id: id,
type: "person",
data: person.data,
isMain: id === this.mainId,
});
}
// For each person, create union nodes for their family relationships
for (const [id, person] of this.personById) {
const parents = (person.rels.parents || []).filter((pid) =>
this.personById.has(pid)
);
if (parents.length > 0) {
const unionId = this.getOrCreateFamilyUnion(parents);
// union → child
this.addEdge(unionId, id);
}
}
// Compute generation numbers via BFS from main person
this.computeGenerations();
}
/**
* BFS from the main person to assign generation numbers.
* Spouses get the same generation, parents get gen-1, children get gen+1.
* Spouses are processed first to ensure they share a layer.
*/
computeGenerations() {
this.generations.set(this.mainId, 0);
const queue = [this.mainId];
const visited = new Set([this.mainId]);
while (queue.length > 0) {
const id = queue.shift();
const gen = this.generations.get(id);
const person = this.personById.get(id);
if (!person) continue;
// Spouses = same generation (process first for consistency)
for (const sid of person.rels.spouses || []) {
if (!visited.has(sid) && this.personById.has(sid)) {
this.generations.set(sid, gen);
visited.add(sid);
queue.push(sid);
}
}
// Parents = one generation up
for (const pid of person.rels.parents || []) {
if (!visited.has(pid) && this.personById.has(pid)) {
this.generations.set(pid, gen - 1);
visited.add(pid);
queue.push(pid);
}
}
// Children = one generation down
for (const cid of person.rels.children || []) {
if (!visited.has(cid) && this.personById.has(cid)) {
this.generations.set(cid, gen + 1);
visited.add(cid);
queue.push(cid);
}
}
}
}
/**
* Get or create a union node for a set of parents.
* Creates parent → union edges on first creation.
*/
getOrCreateFamilyUnion(parentIds) {
const key = [...parentIds].sort().join("|");
if (this.familyUnions.has(key)) {
return this.familyUnions.get(key);
}
const unionId = `union_${this.unionCounter++}`;
this.nodes.set(unionId, {
id: unionId,
type: "union",
data: null,
});
this.familyUnions.set(key, unionId);
// parent → union edges (high priority to keep parents close)
for (const pid of parentIds) {
this.addEdge(pid, unionId, 10);
}
return unionId;
}
addEdge(source, target, priority = 1) {
const exists = this.edges.some(
(e) => e.source === source && e.target === target
);
if (!exists) {
this.edges.push({ source, target, priority });
}
}
buildElkGraph() {
const w = this.config.cardWidth;
const h = this.config.cardHeight;
const unionSize = 2;
// Order person nodes with spouses adjacent for model-order awareness
const orderedPersonIds = this._orderPersonsBySpouseGroups();
const elkNodes = [];
// Add person nodes in spouse-grouped order
for (const id of orderedPersonIds) {
elkNodes.push({
id: id,
width: w,
height: h,
});
}
// Add union nodes
for (const [id, node] of this.nodes) {
if (node.type !== "union") continue;
elkNodes.push({
id: id,
width: unionSize,
height: unionSize,
});
}
const elkEdges = this.edges.map((e, i) => {
const edge = {
id: `e${i}`,
sources: [e.source],
targets: [e.target],
};
if (e.priority > 1) {
edge.layoutOptions = {
"elk.layered.priority.direction": String(e.priority),
"elk.layered.priority.shortness": String(e.priority),
};
}
return edge;
});
return {
id: "root",
layoutOptions: {
"elk.algorithm": "layered",
"elk.direction": "DOWN",
"elk.edgeRouting": "ORTHOGONAL",
"elk.layered.spacing.nodeNodeBetweenLayers": String(
this.config.verticalSpacing
),
"elk.spacing.nodeNode": String(this.config.horizontalSpacing),
"elk.layered.spacing.edgeNodeBetweenLayers": "15",
"elk.layered.spacing.edgeEdgeBetweenLayers": "10",
"elk.layered.nodePlacement.strategy": "NETWORK_SIMPLEX",
"elk.layered.crossingMinimization.strategy": "LAYER_SWEEP",
"elk.layered.considerModelOrder.strategy": "NODES_AND_EDGES",
"elk.separateConnectedComponents": "false",
"elk.layered.compaction.postCompaction.strategy":
"EDGE_LENGTH",
},
children: elkNodes,
edges: elkEdges,
};
}
/**
* Order person nodes so that spouse pairs are adjacent in the input.
* Combined with considerModelOrder, this keeps couples placed close together.
*/
_orderPersonsBySpouseGroups() {
const ordered = [];
const added = new Set();
for (const [id, person] of this.personById) {
if (added.has(id)) continue;
added.add(id);
ordered.push(id);
// Add spouses immediately after this person
const spouses = (person.rels.spouses || []).filter(
(sid) => this.personById.has(sid) && !added.has(sid)
);
for (const sid of spouses) {
added.add(sid);
ordered.push(sid);
}
}
return ordered;
}
}
// ─── Extract positions & build clean connectors ──────────────────────
function extractPositions(elkResult, builder, config) {
const persons = [];
const unions = [];
const connections = [];
const halfH = config.cardHeight / 2;
// ── Step 1: Read raw ELK positions ──
const rawPos = new Map(); // id → { cx, cy }
let rootX = 0,
rootY = 0;
for (const elkNode of elkResult.children || []) {
const nodeInfo = builder.nodes.get(elkNode.id);
if (!nodeInfo) continue;
const cx = elkNode.x + elkNode.width / 2;
const cy = elkNode.y + elkNode.height / 2;
rawPos.set(elkNode.id, { cx, cy });
if (nodeInfo.isMain) {
rootX = cx;
rootY = cy;
}
}
// ── Step 2: Snap person nodes to generation rows ──
// Group person nodes by generation, compute median Y for each generation
const genGroups = new Map(); // generation → [{ id, cx, cy }]
for (const [id, pos] of rawPos) {
const nodeInfo = builder.nodes.get(id);
if (!nodeInfo || nodeInfo.type !== "person") continue;
const gen = builder.generations.get(id) || 0;
if (!genGroups.has(gen)) genGroups.set(gen, []);
genGroups.get(gen).push({ id, ...pos });
}
// For each generation, use the median Y as the canonical row Y
const genY = new Map(); // generation → snapped Y
for (const [gen, nodes] of genGroups) {
const ys = nodes.map((n) => n.cy).sort((a, b) => a - b);
const mid = Math.floor(ys.length / 2);
const medianY =
ys.length % 2 === 0 ? (ys[mid - 1] + ys[mid]) / 2 : ys[mid];
genY.set(gen, medianY);
}
// ── Step 3: Compute union node Y positions ──
// Each union sits between its parent generation row and child generation row
const unionGenY = new Map(); // unionId → snapped Y
for (const [id, node] of builder.nodes) {
if (node.type !== "union") continue;
// Find parent generation (edges INTO this union)
let parentGen = null;
let childGen = null;
for (const edge of builder.edges) {
if (edge.target === id && builder.generations.has(edge.source)) {
parentGen = builder.generations.get(edge.source);
}
if (edge.source === id && builder.generations.has(edge.target)) {
childGen = builder.generations.get(edge.target);
}
}
if (parentGen !== null && childGen !== null) {
const pY = genY.get(parentGen);
const cY = genY.get(childGen);
if (pY !== undefined && cY !== undefined) {
// Place union at: parent bottom edge + 40% of gap to child top edge
const parentBottom = pY + halfH;
const childTop = cY - halfH;
unionGenY.set(id, parentBottom + (childTop - parentBottom) * 0.4);
continue;
}
}
// Fallback: use raw ELK position
const raw = rawPos.get(id);
if (raw) unionGenY.set(id, raw.cy);
}
// ── Step 4: Build final positioned nodes (centered on root) ──
const posMap = new Map(); // id → { x, y }
// Recalculate rootY using the snapped generation Y
const mainGen = builder.generations.get(builder.mainId) || 0;
const snappedRootY = genY.get(mainGen) || rootY;
for (const [id, node] of builder.nodes) {
const raw = rawPos.get(id);
if (!raw) continue;
let finalY;
if (node.type === "person") {
const gen = builder.generations.get(id) || 0;
finalY = (genY.get(gen) || raw.cy) - snappedRootY;
} else {
finalY = (unionGenY.get(id) || raw.cy) - snappedRootY;
}
const finalX = raw.cx - rootX;
posMap.set(id, { x: finalX, y: finalY });
if (node.type === "person") {
persons.push({
x: finalX,
y: finalY,
id: node.id,
isMain: node.isMain,
data: node.data,
});
} else {
unions.push({ id: id, x: finalX, y: finalY });
}
}
// ── Step 5: Build clean bus-line connectors ──
const incomingToUnion = new Map();
const outgoingFromUnion = new Map();
for (const edge of builder.edges) {
const sourceInfo = builder.nodes.get(edge.source);
const targetInfo = builder.nodes.get(edge.target);
if (targetInfo && targetInfo.type === "union") {
if (!incomingToUnion.has(edge.target))
incomingToUnion.set(edge.target, []);
incomingToUnion.get(edge.target).push(edge.source);
}
if (sourceInfo && sourceInfo.type === "union") {
if (!outgoingFromUnion.has(edge.source))
outgoingFromUnion.set(edge.source, []);
outgoingFromUnion.get(edge.source).push(edge.target);
}
}
for (const union of unions) {
const parentIds = incomingToUnion.get(union.id) || [];
const childIds = outgoingFromUnion.get(union.id) || [];
const parents = parentIds
.map((id) => posMap.get(id))
.filter(Boolean);
const children = childIds
.map((id) => posMap.get(id))
.filter(Boolean);
const ux = union.x;
const uy = union.y;
// ── Parent → union connections ──
if (parents.length > 0) {
// Horizontal couple bar at union Y
if (parents.length >= 2) {
const xs = parents.map((p) => p.x).sort((a, b) => a - b);
connections.push({
path: `M ${xs[0]} ${uy} L ${xs[xs.length - 1]} ${uy}`,
cssClass: "link couple-link",
});
}
// Vertical drop from each parent's bottom edge to couple bar Y
for (const p of parents) {
const bottomY = p.y + halfH;
connections.push({
path: `M ${p.x} ${bottomY} L ${p.x} ${uy}`,
cssClass: "link ancestor-link",
});
}
}
// ── Union → children connections ──
if (children.length > 0) {
// Bus Y halfway between union and children's top edge
const childY = children[0].y;
const busY = uy + (childY - halfH - uy) / 2;
// Vertical stem from union down to bus
connections.push({
path: `M ${ux} ${uy} L ${ux} ${busY}`,
cssClass: "link descendant-link",
});
if (children.length === 1) {
// Single child: continue vertical line
connections.push({
path: `M ${children[0].x} ${busY} L ${children[0].x} ${childY - halfH}`,
cssClass: "link descendant-link",
});
} else {
// Horizontal bus spanning all children
const xs = children
.map((c) => c.x)
.sort((a, b) => a - b);
connections.push({
path: `M ${xs[0]} ${busY} L ${xs[xs.length - 1]} ${busY}`,
cssClass: "link descendant-link",
});
// Vertical drops from bus to each child's top edge
for (const c of children) {
connections.push({
path: `M ${c.x} ${busY} L ${c.x} ${childY - halfH}`,
cssClass: "link descendant-link",
});
}
}
}
}
return { persons, unions, connections };
}

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/**
* Graphviz (viz.js) based family tree layout.
*
* Architecture: union-node pattern
* ─────────────────────────────────
* Each marriage/partnership is modeled as a small "union" node.
* parent1 ──→ union ──→ child1
* parent2 ──→ union ──→ child2
*
* Graphviz's "dot" algorithm (Sugiyama) then places:
* - Each generation on its own rank
* - Union nodes on intermediate ranks between parents and children
* - Couples side-by-side (connected to the same union)
* - Children centered below the union node
*
* The layout guarantees no overlaps and handles multiple marriages,
* siblings, and complex family structures correctly.
*/
import { instance as vizInstance } from "@viz-js/viz";
let viz = null;
async function getViz() {
if (!viz) {
viz = await vizInstance();
}
return viz;
}
// Graphviz uses inches; 1 inch = 72 points
const PPI = 72;
/**
* Build a Graphviz DOT graph from the tree data and compute layout.
*
* @param {object} rootData - The root person data from PHP
* @param {Configuration} config
* @returns {Promise<LayoutResult>} Positioned nodes and edges
*/
export async function computeGraphvizLayout(rootData, config) {
const builder = new GraphBuilder(config);
builder.addPersonFromData(rootData);
const dot = builder.buildDotGraph();
const viz = await getViz();
const result = viz.renderJSON(dot);
return extractPositions(result, builder, config);
}
// ─── Graph Builder ───────────────────────────────────────────────────
class GraphBuilder {
constructor(config) {
this.config = config;
this.nodes = new Map(); // id → { id, type, data, layer }
this.edges = []; // { source, target }
this.visited = new Set();
this.unionCounter = 0;
}
/**
* Recursively add a person and all their relatives to the graph.
*/
addPersonFromData(data, currentLayer = 0) {
if (this.visited.has(data.xref)) return;
this.visited.add(data.xref);
this.addPersonNode(data, currentLayer);
// Ancestors: go up via parentFamilies
if (data.parentFamilies && data.parentFamilies.length > 0) {
this.addAncestorFamilies(data, currentLayer);
}
// Descendants: go down
if (data.families && data.families.length > 0) {
this.addDescendants(data, currentLayer);
}
}
addPersonNode(data, layer) {
if (this.nodes.has(data.xref)) return;
this.nodes.set(data.xref, {
id: data.xref,
type: "person",
data: data,
layer: layer,
});
}
addUnionNode(layer) {
const id = `union_${this.unionCounter++}`;
this.nodes.set(id, {
id: id,
type: "union",
data: null,
layer: layer,
});
return id;
}
addEdge(source, target) {
const exists = this.edges.some(
(e) => e.source === source && e.target === target
);
if (!exists) {
this.edges.push({ source, target });
}
}
/**
* Add ancestor families: each parentFamily is a FamilyNode with
* .parents (both mother & father) and .children (siblings).
*
* Creates: parent → union → child (for each child including the person)
*/
addAncestorFamilies(personData, personLayer) {
const parentFamilies = personData.parentFamilies;
if (!parentFamilies || parentFamilies.length === 0) return;
for (const family of parentFamilies) {
const unionLayer = personLayer - 1;
const parentLayer = personLayer - 2;
const unionId = this.addUnionNode(unionLayer);
// Union → person (this child)
this.addEdge(unionId, personData.xref);
// Each parent → union, then recurse into their ancestors
for (const parent of family.parents || []) {
this.addPersonNode(parent, parentLayer);
this.addEdge(parent.xref, unionId);
if (!this.visited.has(parent.xref)) {
this.visited.add(parent.xref);
if (
parent.parentFamilies &&
parent.parentFamilies.length > 0
) {
this.addAncestorFamilies(parent, parentLayer);
}
}
}
// Siblings (other children of this family) → same union
for (const sibling of family.children || []) {
this.addPersonNode(sibling, personLayer);
this.addEdge(unionId, sibling.xref);
// Process sibling's descendants
if (!this.visited.has(sibling.xref)) {
this.visited.add(sibling.xref);
if (sibling.families && sibling.families.length > 0) {
this.addDescendants(sibling, personLayer);
}
}
}
}
}
/**
* Add descendant chain: person → union → children
*/
addDescendants(personData, personLayer) {
if (!personData.families) return;
for (const family of personData.families) {
const unionLayer = personLayer + 1;
const childLayer = personLayer + 2;
const unionId = this.addUnionNode(unionLayer);
// Person → union
this.addEdge(personData.xref, unionId);
// Spouse → union
if (family.spouse) {
this.addPersonNode(family.spouse, personLayer);
this.addEdge(family.spouse.xref, unionId);
}
// Union → each child
for (const child of family.children || []) {
this.addPersonNode(child, childLayer);
this.addEdge(unionId, child.xref);
// Recurse into child's descendants
if (!this.visited.has(child.xref)) {
this.visited.add(child.xref);
if (child.families && child.families.length > 0) {
this.addDescendants(child, childLayer);
}
}
}
}
}
/**
* Build a Graphviz DOT language graph.
*/
buildDotGraph() {
const w = this.config.cardWidth / PPI;
const h = this.config.cardHeight / PPI;
const nodesep = this.config.horizontalSpacing / PPI;
const ranksep = this.config.verticalSpacing / PPI;
let dot = "digraph G {\n";
dot += " rankdir=TB;\n";
dot += ` nodesep=${nodesep.toFixed(3)};\n`;
dot += ` ranksep=${ranksep.toFixed(3)};\n`;
dot += " splines=none;\n";
dot += " ordering=out;\n";
dot += "\n";
// Add nodes
for (const [id, node] of this.nodes) {
// Escape quotes in IDs
const safeId = id.replace(/"/g, '\\"');
if (node.type === "person") {
dot += ` "${safeId}" [shape=box, fixedsize=true, width=${w.toFixed(3)}, height=${h.toFixed(3)}];\n`;
} else {
dot += ` "${safeId}" [shape=point, width=0.01, height=0.01];\n`;
}
}
dot += "\n";
// Add edges
for (const edge of this.edges) {
const src = edge.source.replace(/"/g, '\\"');
const tgt = edge.target.replace(/"/g, '\\"');
dot += ` "${src}" -> "${tgt}";\n`;
}
dot += "\n";
// Add rank constraints to group nodes at the same layer
const layerGroups = new Map();
for (const [id, node] of this.nodes) {
const layer = node.layer;
if (!layerGroups.has(layer)) layerGroups.set(layer, []);
layerGroups.get(layer).push(id);
}
for (const [, ids] of layerGroups) {
if (ids.length > 1) {
const quoted = ids
.map((id) => `"${id.replace(/"/g, '\\"')}"`)
.join("; ");
dot += ` { rank=same; ${quoted}; }\n`;
}
}
dot += "}\n";
return dot;
}
}
// ─── Extract results ─────────────────────────────────────────────────
/**
* Parse a Graphviz "x,y" position string into {x, y} in pixels.
* Graphviz Y-axis goes bottom-to-top, so we negate Y for SVG (top-to-bottom).
*/
function parsePos(posStr) {
const parts = posStr.split(",");
return { x: parseFloat(parts[0]), y: -parseFloat(parts[1]) };
}
/**
* Extract node positions from Graphviz and build family connections ourselves.
*
* We IGNORE Graphviz's edge routing entirely. Instead we use node positions
* and the graph structure to draw clean family-tree connectors:
*
* Parent1 Parent2
* | |
* +----+-----+ ← horizontal couple bar
* |
* ------+------ ← horizontal children bus
* | | | |
* C1 C2 C3 C4
*
* This gives merged, clean orthogonal lines at consistent heights.
*
* @returns {LayoutResult}
*/
function extractPositions(gvResult, builder, config) {
const persons = [];
const unions = [];
const connections = []; // family connections, not raw edges
// Map node names to their Graphviz positions
const nodePositions = new Map(); // name → { x, y }
let rootX = 0;
let rootY = 0;
// First pass: collect all positions, find root
for (const obj of gvResult.objects || []) {
if (!obj.name || !obj.pos) continue;
const nodeInfo = builder.nodes.get(obj.name);
if (!nodeInfo) continue;
const pos = parsePos(obj.pos);
nodePositions.set(obj.name, pos);
if (
nodeInfo.type === "person" &&
nodeInfo.data &&
nodeInfo.data.isRoot
) {
rootX = pos.x;
rootY = pos.y;
}
}
const halfW = config.cardWidth / 2;
const halfH = config.cardHeight / 2;
// Second pass: build positioned nodes centered on root
for (const [name, pos] of nodePositions) {
const nodeInfo = builder.nodes.get(name);
if (!nodeInfo) continue;
const cx = pos.x - rootX;
const cy = pos.y - rootY;
if (nodeInfo.type === "person") {
persons.push({
x: cx,
y: cy,
data: nodeInfo.data,
});
} else {
unions.push({
id: name,
x: cx,
y: cy,
});
}
}
// Third pass: build family connections from graph structure.
// For each union node, find its parents (edges INTO it) and
// children (edges OUT of it), then build connector paths.
const incomingToUnion = new Map(); // unionId → [nodeId, ...]
const outgoingFromUnion = new Map(); // unionId → [nodeId, ...]
for (const edge of builder.edges) {
const sourceInfo = builder.nodes.get(edge.source);
const targetInfo = builder.nodes.get(edge.target);
if (targetInfo && targetInfo.type === "union") {
// person → union (parent/spouse)
if (!incomingToUnion.has(edge.target))
incomingToUnion.set(edge.target, []);
incomingToUnion.get(edge.target).push(edge.source);
}
if (sourceInfo && sourceInfo.type === "union") {
// union → person (child)
if (!outgoingFromUnion.has(edge.source))
outgoingFromUnion.set(edge.source, []);
outgoingFromUnion.get(edge.source).push(edge.target);
}
}
// For each union, generate clean family-tree connector paths
for (const [unionId, union] of unions.map((u) => [u.id, u])) {
const parents = (incomingToUnion.get(unionId) || [])
.map((id) => {
const pos = nodePositions.get(id);
return pos
? { id, x: pos.x - rootX, y: pos.y - rootY }
: null;
})
.filter(Boolean);
const children = (outgoingFromUnion.get(unionId) || [])
.map((id) => {
const pos = nodePositions.get(id);
return pos
? { id, x: pos.x - rootX, y: pos.y - rootY }
: null;
})
.filter(Boolean);
const ux = union.x;
const uy = union.y;
// --- Parent-to-union connections ---
// Each parent drops a vertical line from card bottom to the union Y,
// then a horizontal bar connects them at union Y.
if (parents.length > 0) {
// Horizontal couple bar at union Y
if (parents.length >= 2) {
const xs = parents.map((p) => p.x).sort((a, b) => a - b);
connections.push({
path: `M ${xs[0]} ${uy} L ${xs[xs.length - 1]} ${uy}`,
cssClass: "link couple-link",
});
}
// Vertical drops from each parent's bottom edge to couple bar
for (const p of parents) {
const bottomY = p.y + halfH;
connections.push({
path: `M ${p.x} ${bottomY} L ${p.x} ${uy}`,
cssClass: "link ancestor-link",
});
}
}
// --- Union-to-children connections ---
// Vertical line from union down to bus Y, horizontal bus spanning
// all children, then vertical drops from bus to each child's top.
if (children.length > 0) {
// Bus Y is halfway between union and the first child row
const childY = children[0].y;
const busY = uy + (childY - halfH - uy) / 2;
// Vertical stem from union (or couple bar) down to bus
connections.push({
path: `M ${ux} ${uy} L ${ux} ${busY}`,
cssClass: "link descendant-link",
});
if (children.length === 1) {
// Single child: just continue the vertical line
connections.push({
path: `M ${children[0].x} ${busY} L ${children[0].x} ${childY - halfH}`,
cssClass: "link descendant-link",
});
} else {
// Horizontal bus spanning all children
const xs = children
.map((c) => c.x)
.sort((a, b) => a - b);
connections.push({
path: `M ${xs[0]} ${busY} L ${xs[xs.length - 1]} ${busY}`,
cssClass: "link descendant-link",
});
// Vertical drops from bus to each child's top edge
for (const c of children) {
connections.push({
path: `M ${c.x} ${busY} L ${c.x} ${childY - halfH}`,
cssClass: "link descendant-link",
});
}
}
}
}
return { persons, unions, connections };
}

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/**
* Ancestor tree rendering — draws ancestor nodes and links upward from root.
*/
import { renderPersonCard } from "../chart/box.js";
import { drawElbowLink } from "./link-drawer.js";
/**
* Render the ancestor tree nodes and links.
*
* @param {d3.Selection} canvas - The SVG canvas group
* @param {Array} nodes - Ancestor hierarchy nodes (from computeLayout)
* @param {Array} links - Ancestor hierarchy links
* @param {Configuration} config
* @param {Function} onNodeClick
* @param {string} containerSelector
*/
export function renderAncestorTree(canvas, nodes, links, config, onNodeClick, containerSelector) {
// Draw links first (behind nodes)
const linkGroup = canvas.append("g").attr("class", "ancestor-links");
for (const link of links) {
drawElbowLink(linkGroup, link.source, link.target, "ancestor-link", config);
}
// Draw nodes
const nodeGroup = canvas.append("g").attr("class", "ancestor-nodes");
for (const node of nodes) {
renderPersonCard(nodeGroup, node, config, onNodeClick, containerSelector);
}
}

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/**
* Descendant tree rendering.
*
* Key design: children descend from *both* parents. A horizontal connector
* joins the couple, and the vertical drop to children originates from the
* midpoint of that connector — not from a single parent.
*
* Multiple spouses are placed alternating left/right with increasing distance
* to avoid overlap between family branches.
*/
import { renderPersonCard } from "../chart/box.js";
import { computeSpouseOffset, SPOUSE_GAP } from "./spouse-util.js";
/**
* Render the descendant tree: nodes, spouse nodes, and couple-centered links.
*/
export function renderDescendantTree(canvas, nodes, _links, rootData, config, onNodeClick, containerSelector) {
const linkGroup = canvas.append("g").attr("class", "descendant-links");
const nodeGroup = canvas.append("g").attr("class", "descendant-nodes");
// Build a map of xref → D3 node position for all descendant nodes + root
const posMap = new Map();
posMap.set(rootData.xref, { x: 0, y: 0 });
for (const node of nodes) {
posMap.set(node.data.xref, { x: node.x, y: node.y });
}
// Render all descendant person cards
for (const node of nodes) {
renderPersonCard(nodeGroup, node, config, onNodeClick, containerSelector);
}
// Render spouses and couple-centered links at every level (including root)
const allPersons = [rootData, ...nodes.map((n) => n.data)];
for (const person of allPersons) {
renderCoupleLinks(linkGroup, nodeGroup, person, posMap, config, onNodeClick, containerSelector);
}
}
/**
* For a person with families, render each spouse and draw the
* couple → children connector.
*
* Multiple spouses alternate left (odd index) / right (even index)
* with increasing distance.
*/
function renderCoupleLinks(linkGroup, nodeGroup, personData, posMap, config, onNodeClick, containerSelector) {
if (!personData.families || personData.families.length === 0) return;
const personPos = posMap.get(personData.xref);
if (!personPos) return;
const w = config.cardWidth;
const h = config.cardHeight;
const halfH = h / 2;
personData.families.forEach((family, familyIndex) => {
// Alternate spouse placement: first right, second left, third further right, etc.
const spouseOffset = computeSpouseOffset(familyIndex, w, SPOUSE_GAP);
let spousePos = null;
if (family.spouse) {
spousePos = {
x: personPos.x + spouseOffset,
y: personPos.y,
};
// Render spouse card
renderPersonCard(
nodeGroup,
{ x: spousePos.x, y: spousePos.y, data: family.spouse },
config,
onNodeClick,
containerSelector
);
// Horizontal connector between the couple (edge-to-edge)
const leftX = Math.min(personPos.x, spousePos.x);
const rightX = Math.max(personPos.x, spousePos.x);
linkGroup
.append("line")
.attr("class", "link spouse-link")
.attr("x1", leftX + w / 2)
.attr("y1", personPos.y)
.attr("x2", rightX - w / 2)
.attr("y2", personPos.y);
}
// Collect children positions for this family
const childPositions = [];
for (const child of family.children || []) {
const childPos = posMap.get(child.xref);
if (childPos) {
childPositions.push(childPos);
}
}
if (childPositions.length === 0) return;
// Couple midpoint X (centered between parents)
const coupleX = spousePos
? (personPos.x + spousePos.x) / 2
: personPos.x;
// Y coordinates: bottom of parent card → top of child card
const parentBottomY = personPos.y + halfH;
const childTopY = childPositions[0].y - halfH;
// Horizontal rail sits 40% of the way down from parent to child
const railY = parentBottomY + (childTopY - parentBottomY) * 0.4;
// 1. Vertical line: couple bottom → rail
linkGroup
.append("line")
.attr("class", "link descendant-link")
.attr("x1", coupleX)
.attr("y1", parentBottomY)
.attr("x2", coupleX)
.attr("y2", railY);
// 2. Horizontal rail spanning all children
const xs = childPositions.map((c) => c.x);
const minX = Math.min(coupleX, ...xs);
const maxX = Math.max(coupleX, ...xs);
linkGroup
.append("line")
.attr("class", "link descendant-link")
.attr("x1", minX)
.attr("y1", railY)
.attr("x2", maxX)
.attr("y2", railY);
// 3. Vertical drops: rail → top of each child card
for (const cp of childPositions) {
linkGroup
.append("line")
.attr("class", "link descendant-link")
.attr("x1", cp.x)
.attr("y1", railY)
.attr("x2", cp.x)
.attr("y2", childTopY);
}
});
}
// Re-export from shared utility
export { computeSpouseOffset } from "./spouse-util.js";

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/**
* Family connector utilities.
*
* Draws special connectors between spouses and from couples to children.
*/
/**
* Draw a family connector: horizontal line between spouses,
* then vertical drop to children.
*
* @param {d3.Selection} group
* @param {object} parent1 - First parent position {x, y}
* @param {object} parent2 - Second parent position {x, y}
* @param {Array} children - Child positions [{x, y}, ...]
* @param {Configuration} config
*/
export function drawFamilyConnector(group, parent1, parent2, children, config) {
const halfHeight = config.cardHeight / 2;
// Horizontal line between spouses
if (parent2) {
group
.append("line")
.attr("class", "link spouse-link")
.attr("x1", parent1.x)
.attr("y1", parent1.y)
.attr("x2", parent2.x)
.attr("y2", parent2.y)
.attr("stroke", "#d4a87b")
.attr("stroke-width", 2);
}
if (children.length === 0) return;
// Midpoint between parents (or just parent1 if single parent)
const coupleX = parent2 ? (parent1.x + parent2.x) / 2 : parent1.x;
const coupleY = parent1.y + halfHeight;
// Vertical drop from couple midpoint
const childrenY = children[0].y - halfHeight;
const midY = (coupleY + childrenY) / 2;
group
.append("line")
.attr("class", "link descendant-link")
.attr("x1", coupleX)
.attr("y1", coupleY)
.attr("x2", coupleX)
.attr("y2", midY);
if (children.length === 1) {
// Single child — straight line down
group
.append("line")
.attr("class", "link descendant-link")
.attr("x1", coupleX)
.attr("y1", midY)
.attr("x2", children[0].x)
.attr("y2", childrenY);
} else {
// Multiple children — horizontal rail
const minX = Math.min(...children.map((c) => c.x));
const maxX = Math.max(...children.map((c) => c.x));
group
.append("line")
.attr("class", "link descendant-link")
.attr("x1", minX)
.attr("y1", midY)
.attr("x2", maxX)
.attr("y2", midY);
for (const child of children) {
group
.append("line")
.attr("class", "link descendant-link")
.attr("x1", child.x)
.attr("y1", midY)
.attr("x2", child.x)
.attr("y2", childrenY);
}
}
}

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/**
* Link/connector drawing utilities.
*
* Uses elbow (right-angle) connectors for a clean genealogy look.
*/
/**
* Draw an elbow link between source and target nodes.
*
* @param {d3.Selection} group - SVG group to append the path to
* @param {object} source - Source node with x, y coordinates
* @param {object} target - Target node with x, y coordinates
* @param {string} cssClass - Additional CSS class for the link
* @param {Configuration} config
*/
export function drawElbowLink(group, source, target, cssClass, config) {
const halfHeight = config.cardHeight / 2;
// Midpoint Y between source and target
const midY = (source.y + target.y) / 2;
const path = `M ${source.x} ${source.y + (target.y > source.y ? halfHeight : -halfHeight)}
L ${source.x} ${midY}
L ${target.x} ${midY}
L ${target.x} ${target.y + (target.y > source.y ? -halfHeight : halfHeight)}`;
group
.append("path")
.attr("class", `link ${cssClass}`)
.attr("d", path);
}

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/**
* Sibling node layout and rendering.
*
* Siblings are placed at the same Y-level as the root, to the left.
* Connected via T-junction from the parent link.
*/
import { renderPersonCard } from "../chart/box.js";
/**
* Render sibling nodes and their connectors.
*
* @param {d3.Selection} canvas
* @param {Array} siblings - Sibling position data from computeSiblingPositions
* @param {Array} links - Sibling links
* @param {Configuration} config
* @param {Function} onNodeClick
* @param {string} containerSelector
*/
export function renderSiblings(canvas, siblings, links, config, onNodeClick, containerSelector) {
if (siblings.length === 0) return;
const siblingGroup = canvas.append("g").attr("class", "sibling-nodes");
const linkGroup = canvas.append("g").attr("class", "sibling-links");
// Draw a horizontal rail connecting all siblings + root
const minX = 0;
const maxX = siblings[siblings.length - 1].x;
const railY = -config.cardHeight / 2 - 15;
// Vertical connector from parent area to rail
linkGroup
.append("line")
.attr("class", "link sibling-link")
.attr("x1", 0)
.attr("y1", -config.cardHeight / 2)
.attr("x2", 0)
.attr("y2", railY);
// Horizontal rail
linkGroup
.append("line")
.attr("class", "link sibling-link")
.attr("x1", minX)
.attr("y1", railY)
.attr("x2", maxX)
.attr("y2", railY);
// Vertical drops from rail to each sibling
for (const sibling of siblings) {
linkGroup
.append("line")
.attr("class", "link sibling-link")
.attr("x1", sibling.x)
.attr("y1", railY)
.attr("x2", sibling.x)
.attr("y2", sibling.y - config.cardHeight / 2);
renderPersonCard(siblingGroup, sibling, config, onNodeClick, containerSelector);
}
}

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/**
* Shared spouse placement utilities.
*/
export const SPOUSE_GAP = 10; // px between partner cards
/**
* Compute the X offset for spouse placement.
*
* Alternates right/left with increasing distance:
* family 0 → right (1 * offset)
* family 1 → left (-1 * offset)
* family 2 → right (2 * offset)
* family 3 → left (-2 * offset)
*
* @param {number} index - Family index (0-based)
* @param {number} cardWidth
* @param {number} gap
* @returns {number} X offset from person position
*/
export function computeSpouseOffset(index, cardWidth, gap) {
const unit = cardWidth + gap;
const distance = Math.floor(index / 2) + 1;
const direction = index % 2 === 0 ? 1 : -1;
return direction * distance * unit;
}
/**
* Compute the couple midpoint X offset for a given family index.
* This is half the spouse offset (the center between person and spouse).
*
* @param {number} familyIndex
* @param {number} cardWidth
* @param {number} gap
* @returns {number}
*/
export function coupleMidpointOffset(familyIndex, cardWidth, gap) {
return computeSpouseOffset(familyIndex, cardWidth, gap) / 2;
}

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<?php
declare(strict_types=1);
use Fisharebest\Webtrees\Individual;
use Fisharebest\Webtrees\Module\ModuleChartInterface;
use Fisharebest\Webtrees\Tree;
/**
* @var ModuleChartInterface $module
* @var Individual $individual
* @var Tree $tree
* @var string $tree_data
* @var string $javascript_url
* @var string $stylesheet_url
*/
?>
<link rel="stylesheet" href="<?= e($stylesheet_url) ?>">
<div id="full-diagram-container" class="full-diagram-container wt-chart" data-tree-name="<?= e($tree->name()) ?>" style="width:100%;height:700px;">
<div class="full-diagram-chart"></div>
</div>
<script>
window.fullDiagramData = <?= $tree_data ?>;
window.fullDiagramBaseUrl = <?= json_encode(route($module::ROUTE_NAME, ['tree' => $tree->name(), 'xref' => '__XREF__']), JSON_THROW_ON_ERROR) ?>;
</script>
<script src="<?= e($javascript_url) ?>"></script>

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<?php
declare(strict_types=1);
use Fisharebest\Webtrees\Http\RequestHandlers\IndividualPage;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Individual;
use Fisharebest\Webtrees\Module\ModuleChartInterface;
use Fisharebest\Webtrees\Tree;
use FullDiagram\Configuration;
/**
* @var string $title
* @var Individual $individual
* @var ModuleChartInterface $module
* @var Tree $tree
* @var Configuration $configuration
* @var string $tree_data
* @var string $javascript_url
* @var string $stylesheet_url
* @var int $ancestor_generations
* @var int $descendant_generations
* @var bool $show_siblings
* @var int $max_generations
* @var int $min_generations
*/
?>
<?= view('components/breadcrumbs', [
'links' => [
route(IndividualPage::class, ['tree' => $tree->name(), 'xref' => $individual->xref()]) => $individual->fullName(),
$title,
],
]) ?>
<h2 class="wt-page-title"><?= $title ?></h2>
<form method="post" class="wt-page-options wt-page-options-chart d-print-none mb-3">
<?= csrf_field() ?>
<div class="row g-3 align-items-end">
<div class="col-auto">
<label for="ancestor_generations" class="form-label">
<?= I18N::translate('Ancestor generations') ?>
</label>
<input
type="range"
class="form-range"
id="ancestor_generations"
name="ancestor_generations"
min="<?= $min_generations ?>"
max="<?= $max_generations ?>"
value="<?= $ancestor_generations ?>"
oninput="document.getElementById('ancestor_gen_label').textContent = this.value"
>
<span id="ancestor_gen_label" class="badge bg-secondary"><?= $ancestor_generations ?></span>
</div>
<div class="col-auto">
<label for="descendant_generations" class="form-label">
<?= I18N::translate('Descendant generations') ?>
</label>
<input
type="range"
class="form-range"
id="descendant_generations"
name="descendant_generations"
min="<?= $min_generations ?>"
max="<?= $max_generations ?>"
value="<?= $descendant_generations ?>"
oninput="document.getElementById('descendant_gen_label').textContent = this.value"
>
<span id="descendant_gen_label" class="badge bg-secondary"><?= $descendant_generations ?></span>
</div>
<div class="col-auto">
<div class="form-check">
<input
type="checkbox"
class="form-check-input"
id="show_siblings"
name="show_siblings"
value="1"
<?= $show_siblings ? 'checked' : '' ?>
>
<label class="form-check-label" for="show_siblings">
<?= I18N::translate('Show siblings') ?>
</label>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">
<?= I18N::translate('View') ?>
</button>
</div>
</div>
</form>
<?= view($module->name() . '::modules/full-diagram/chart', [
'module' => $module,
'individual' => $individual,
'tree' => $tree,
'tree_data' => $tree_data,
'javascript_url' => $javascript_url,
'stylesheet_url' => $stylesheet_url,
]) ?>

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import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import terser from "@rollup/plugin-terser";
export default {
input: "resources/js/modules/index.js",
output: {
file: "resources/js/full-diagram.min.js",
format: "iife",
name: "FullDiagram",
sourcemap: false,
},
plugins: [resolve(), commonjs(), terser()],
};

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<?php
declare(strict_types=1);
namespace FullDiagram;
class Configuration
{
public function __construct(
private readonly int $ancestorGenerations = 3,
private readonly int $descendantGenerations = 3,
private readonly bool $showSiblings = true,
) {
}
public function ancestorGenerations(): int
{
return $this->ancestorGenerations;
}
public function descendantGenerations(): int
{
return $this->descendantGenerations;
}
public function showSiblings(): bool
{
return $this->showSiblings;
}
}

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<?php
declare(strict_types=1);
namespace FullDiagram\Facade;
use Fisharebest\Webtrees\Individual;
use FullDiagram\Configuration;
/**
* Builds a flat person array suitable for the family-chart library.
*
* Phase 1: Traverse the tree (ancestors + descendants) to collect individuals.
* Phase 2: Build relationship data for each collected individual, filtering
* to only include relationships with other collected individuals.
*
* Output format per person (matches family-chart's expected structure):
* { id, data: { gender, "first name", "last name", ... }, rels: { parents, spouses, children } }
*/
class DataFacade
{
/** @var array<string, Individual> Collected individuals keyed by xref */
private array $individuals = [];
public function buildFullTree(Individual $root, Configuration $configuration): array
{
$this->individuals = [];
// Phase 1: Collect all individuals within configured depth
$this->collectPerson($root);
$this->collectAncestors($root, $configuration->ancestorGenerations(), $configuration->showSiblings());
$this->collectDescendants($root, $configuration->descendantGenerations());
// Phase 2: Build flat person array with bidirectional relationships
$persons = [];
foreach ($this->individuals as $individual) {
$persons[] = $this->buildPersonData($individual);
}
return [
'persons' => $persons,
'mainId' => $root->xref(),
];
}
private function collectPerson(Individual $individual): void
{
$this->individuals[$individual->xref()] = $individual;
}
private function collectAncestors(Individual $individual, int $generations, bool $showSiblings): void
{
if ($generations <= 0) {
return;
}
foreach ($individual->childFamilies() as $family) {
$husband = $family->husband();
$wife = $family->wife();
if ($husband !== null && !isset($this->individuals[$husband->xref()])) {
$this->collectPerson($husband);
$this->collectAncestors($husband, $generations - 1, $showSiblings);
}
if ($wife !== null && !isset($this->individuals[$wife->xref()])) {
$this->collectPerson($wife);
$this->collectAncestors($wife, $generations - 1, $showSiblings);
}
// Collect siblings (other children of this family)
if ($showSiblings) {
foreach ($family->children() as $child) {
if (!isset($this->individuals[$child->xref()])) {
$this->collectPerson($child);
// One generation of descendants for siblings
$this->collectDescendants($child, 1);
}
}
}
}
}
private function collectDescendants(Individual $individual, int $generations): void
{
if ($generations <= 0) {
return;
}
foreach ($individual->spouseFamilies() as $family) {
$spouse = $family->spouse($individual);
if ($spouse !== null && !isset($this->individuals[$spouse->xref()])) {
$this->collectPerson($spouse);
}
foreach ($family->children() as $child) {
if (!isset($this->individuals[$child->xref()])) {
$this->collectPerson($child);
$this->collectDescendants($child, $generations - 1);
}
}
}
}
/**
* Build a single person entry in family-chart format.
*
* Relationships are filtered to only include collected individuals,
* ensuring the graph is self-consistent.
*/
private function buildPersonData(Individual $individual): array
{
$xref = $individual->xref();
// Relationships — only to other collected individuals
$parents = [];
$spouses = [];
$children = [];
// Parents: from childFamilies
foreach ($individual->childFamilies() as $family) {
$husband = $family->husband();
$wife = $family->wife();
if ($husband !== null && isset($this->individuals[$husband->xref()])) {
$parents[] = $husband->xref();
}
if ($wife !== null && isset($this->individuals[$wife->xref()])) {
$parents[] = $wife->xref();
}
}
// Spouses and children: from spouseFamilies
foreach ($individual->spouseFamilies() as $family) {
$spouse = $family->spouse($individual);
if ($spouse !== null && isset($this->individuals[$spouse->xref()])) {
$spouses[] = $spouse->xref();
}
foreach ($family->children() as $child) {
if (isset($this->individuals[$child->xref()])) {
$children[] = $child->xref();
}
}
}
// Extract personal data
$names = $individual->getAllNames();
$primaryName = $names[0] ?? [];
$firstName = self::cleanGedcomName(trim($primaryName['givn'] ?? ''));
$lastName = self::cleanGedcomName(trim($primaryName['surn'] ?? ''));
$thumbnailUrl = '';
$media = $individual->findHighlightedMediaFile();
if ($media !== null) {
$thumbnailUrl = $media->imageUrl(80, 80, 'crop');
}
// Marriage date from first spouse family
$marriageDate = '';
$spouseFamily = $individual->spouseFamilies()->first();
if ($spouseFamily !== null) {
$marriageFact = $spouseFamily->facts(['MARR'])->first();
if ($marriageFact !== null && $marriageFact->date()->isOK()) {
$marriageDate = strip_tags($marriageFact->date()->display());
}
}
// Check for ancestors/descendants beyond the current view
$hasMoreAncestors = false;
foreach ($individual->childFamilies() as $family) {
if (($family->husband() !== null && !isset($this->individuals[$family->husband()->xref()])) ||
($family->wife() !== null && !isset($this->individuals[$family->wife()->xref()]))) {
$hasMoreAncestors = true;
break;
}
}
return [
'id' => $xref,
'data' => [
'gender' => $individual->sex() === 'M' ? 'M' : 'F',
'first name' => $firstName,
'last name' => $lastName,
'fullName' => str_replace('@N.N.', "\u{2026}", strip_tags($individual->fullName())),
'birthDate' => self::extractDate($individual, 'BIRT'),
'birthYear' => self::extractYear($individual, 'BIRT'),
'birthPlace' => self::extractPlace($individual, 'BIRT'),
'deathDate' => self::extractDate($individual, 'DEAT'),
'deathYear' => self::extractYear($individual, 'DEAT'),
'deathPlace' => self::extractPlace($individual, 'DEAT'),
'baptismDate' => self::extractDate($individual, 'BAPM') ?: self::extractDate($individual, 'CHR'),
'marriageDate' => $marriageDate,
'occupation' => self::extractFactValue($individual, 'OCCU'),
'residence' => self::extractFactValue($individual, 'RESI'),
'isDead' => $individual->isDead(),
'avatar' => $thumbnailUrl,
'url' => $individual->url(),
'hasMoreAncestors' => $hasMoreAncestors,
],
'rels' => [
'parents' => array_values(array_unique($parents)),
'spouses' => array_values(array_unique($spouses)),
'children' => array_values(array_unique($children)),
],
];
}
private static function cleanGedcomName(string $name): string
{
if (preg_match('/^@[A-Z]\.N\.$/', $name)) {
return '';
}
return $name;
}
private static function extractDate(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null || !$fact->date()->isOK()) {
return '';
}
return strip_tags($fact->date()->display());
}
private static function extractYear(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null || !$fact->date()->isOK()) {
return '';
}
return (string) $fact->date()->minimumDate()->year();
}
private static function extractPlace(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
return $fact->place()->gedcomName();
}
private static function extractFactValue(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
return trim($fact->value());
}
}

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<?php
declare(strict_types=1);
namespace FullDiagram\Model;
use JsonSerializable;
class FamilyNode implements JsonSerializable
{
/**
* @param NodeData|null $spouse
* @param list<NodeData> $children
* @param string $familyXref
* @param list<NodeData> $parents Used in ancestor context (both parents)
*/
public function __construct(
private readonly ?NodeData $spouse,
private readonly array $children = [],
private readonly string $familyXref = '',
private readonly array $parents = [],
) {
}
public function jsonSerialize(): mixed
{
$data = [
'familyXref' => $this->familyXref,
'spouse' => $this->spouse,
'children' => $this->children,
];
if ($this->parents !== []) {
$data['parents'] = $this->parents;
}
return $data;
}
}

228
src/Model/NodeData.php Normal file
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<?php
declare(strict_types=1);
namespace FullDiagram\Model;
use Fisharebest\Webtrees\Individual;
use JsonSerializable;
class NodeData implements JsonSerializable
{
private string $xref;
private string $firstName;
private string $lastName;
private string $fullName;
private string $sex;
private string $birthDate;
private string $birthYear;
private string $birthPlace;
private string $deathDate;
private string $deathYear;
private string $deathPlace;
private string $baptismDate;
private string $marriageDate;
private string $occupation;
private string $residence;
private bool $isDead;
private bool $hasMoreAncestors = false;
private bool $hasMoreDescendants = false;
private string $thumbnailUrl;
private string $url;
private bool $isSibling;
private bool $isRoot;
/** @var list<FamilyNode> Parent families (ancestor direction) */
private array $parentFamilies = [];
/** @var list<FamilyNode> Spouse families (descendant direction) */
private array $families = [];
/** @param list<FamilyNode> $parentFamilies */
public function setParentFamilies(array $parentFamilies): void
{
$this->parentFamilies = $parentFamilies;
}
private function __construct()
{
}
public static function fromIndividual(Individual $individual, bool $isSibling = false, bool $isRoot = false): self
{
$node = new self();
$node->xref = $individual->xref();
$node->fullName = str_replace('@N.N.', "\u{2026}", strip_tags($individual->fullName()));
$node->sex = $individual->sex();
$node->isDead = $individual->isDead();
$node->thumbnailUrl = self::extractThumbnail($individual);
$node->url = $individual->url();
$node->isSibling = $isSibling;
$node->isRoot = $isRoot;
// Parse first/last name from GEDCOM name parts
// Filter out GEDCOM unknown-name placeholders like @N.N., @P.N.
$names = $individual->getAllNames();
$primaryName = $names[0] ?? [];
$node->firstName = self::cleanGedcomName(trim($primaryName['givn'] ?? ''));
$node->lastName = self::cleanGedcomName(trim($primaryName['surn'] ?? ''));
// Dates and places
$node->birthDate = self::extractDate($individual, 'BIRT');
$node->birthYear = self::extractYear($individual, 'BIRT');
$node->birthPlace = self::extractPlace($individual, 'BIRT');
$node->deathDate = self::extractDate($individual, 'DEAT');
$node->deathYear = self::extractYear($individual, 'DEAT');
$node->deathPlace = self::extractPlace($individual, 'DEAT');
$node->baptismDate = self::extractDate($individual, 'BAPM')
?: self::extractDate($individual, 'CHR');
$node->occupation = self::extractFactValue($individual, 'OCCU');
$node->residence = self::extractFactValue($individual, 'RESI');
// Marriage date from first spouse family
$node->marriageDate = '';
$spouseFamily = $individual->spouseFamilies()->first();
if ($spouseFamily !== null) {
$marriageFact = $spouseFamily->facts(['MARR'])->first();
if ($marriageFact !== null && $marriageFact->date()->isOK()) {
$node->marriageDate = strip_tags($marriageFact->date()->display());
}
}
return $node;
}
/**
* Replace GEDCOM unknown-name placeholders (@N.N., @P.N.) with empty string.
*/
private static function cleanGedcomName(string $name): string
{
// @N.N. = nomen nescio (unknown surname), @P.N. = praenomen nescio (unknown given name)
if (preg_match('/^@[A-Z]\.N\.$/', $name)) {
return '';
}
return $name;
}
private static function extractDate(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
$date = $fact->date();
if (!$date->isOK()) {
return '';
}
return strip_tags($date->display());
}
private static function extractYear(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
$date = $fact->date();
if (!$date->isOK()) {
return '';
}
return (string) $date->minimumDate()->year();
}
private static function extractPlace(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
$place = $fact->place();
return $place->gedcomName();
}
private static function extractFactValue(Individual $individual, string $tag): string
{
$fact = $individual->facts([$tag])->first();
if ($fact === null) {
return '';
}
return trim($fact->value());
}
private static function extractThumbnail(Individual $individual): string
{
$media = $individual->findHighlightedMediaFile();
if ($media === null) {
return '';
}
return $media->imageUrl(80, 80, 'crop');
}
public function xref(): string
{
return $this->xref;
}
/** @param list<FamilyNode> $families */
public function setFamilies(array $families): void
{
$this->families = $families;
}
public function setHasMoreAncestors(bool $value): void
{
$this->hasMoreAncestors = $value;
}
public function setHasMoreDescendants(bool $value): void
{
$this->hasMoreDescendants = $value;
}
public function jsonSerialize(): mixed
{
$data = [
'xref' => $this->xref,
'firstName' => $this->firstName,
'lastName' => $this->lastName,
'fullName' => $this->fullName,
'sex' => $this->sex,
'birthDate' => $this->birthDate,
'birthYear' => $this->birthYear,
'birthPlace' => $this->birthPlace,
'deathDate' => $this->deathDate,
'deathYear' => $this->deathYear,
'deathPlace' => $this->deathPlace,
'baptismDate' => $this->baptismDate,
'marriageDate' => $this->marriageDate,
'occupation' => $this->occupation,
'residence' => $this->residence,
'isDead' => $this->isDead,
'thumbnailUrl' => $this->thumbnailUrl,
'url' => $this->url,
'isSibling' => $this->isSibling,
'isRoot' => $this->isRoot,
'hasMoreAncestors' => $this->hasMoreAncestors,
'hasMoreDescendants'=> $this->hasMoreDescendants,
];
if ($this->parentFamilies !== []) {
$data['parentFamilies'] = $this->parentFamilies;
}
if ($this->families !== []) {
$data['families'] = $this->families;
}
return $data;
}
}

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<?php
/**
* Full Diagram module for webtrees.
*
* @license GPL-3.0-or-later
*/
declare(strict_types=1);
namespace FullDiagram;
use Fig\Http\Message\RequestMethodInterface;
use Fisharebest\Webtrees\Auth;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Individual;
use Fisharebest\Webtrees\Menu;
use Fisharebest\Webtrees\Module\AbstractModule;
use Fisharebest\Webtrees\Module\ModuleChartInterface;
use Fisharebest\Webtrees\Module\ModuleChartTrait;
use Fisharebest\Webtrees\Module\ModuleCustomInterface;
use Fisharebest\Webtrees\Module\ModuleCustomTrait;
use Fisharebest\Webtrees\Registry;
use Fisharebest\Webtrees\Validator;
use Fisharebest\Webtrees\View;
use FullDiagram\Facade\DataFacade;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
class Module extends AbstractModule implements ModuleChartInterface, ModuleCustomInterface, RequestHandlerInterface
{
use ModuleChartTrait;
use ModuleCustomTrait;
public const ROUTE_NAME = 'full-diagram';
public const ROUTE_URL = '/tree/{tree}/full-diagram/{xref}';
private const DEFAULT_ANCESTOR_GENERATIONS = 3;
private const DEFAULT_DESCENDANT_GENERATIONS = 3;
private const MINIMUM_GENERATIONS = 1;
private const MAXIMUM_GENERATIONS = 10;
public function title(): string
{
return I18N::translate('Full Diagram');
}
public function description(): string
{
return I18N::translate('An interactive diagram showing ancestors, descendants, and siblings.');
}
public function customModuleAuthorName(): string
{
return 'Alex';
}
public function customModuleVersion(): string
{
return '0.1.0';
}
public function customModuleSupportUrl(): string
{
return '';
}
public function resourcesFolder(): string
{
return __DIR__ . '/../resources/';
}
public function boot(): void
{
View::registerNamespace($this->name(), $this->resourcesFolder() . 'views/');
Registry::routeFactory()->routeMap()
->get(self::ROUTE_NAME, self::ROUTE_URL, $this)
->allows(RequestMethodInterface::METHOD_POST);
}
public function chartMenuClass(): string
{
return 'menu-chart-full-diagram';
}
public function chartBoxMenu(Individual $individual): Menu|null
{
return $this->chartMenu($individual);
}
public function chartUrl(Individual $individual, array $parameters = []): string
{
return route(self::ROUTE_NAME, [
'tree' => $individual->tree()->name(),
'xref' => $individual->xref(),
] + $parameters);
}
public function chartTitle(Individual $individual): string
{
return I18N::translate('Full Diagram of %s', $individual->fullName());
}
public function handle(ServerRequestInterface $request): ResponseInterface
{
$tree = Validator::attributes($request)->tree();
$xref = Validator::attributes($request)->isXref()->string('xref');
$individual = Registry::individualFactory()->make($xref, $tree);
$individual = Auth::checkIndividualAccess($individual, false, true);
// Redirect POST to GET for clean URLs
if ($request->getMethod() === RequestMethodInterface::METHOD_POST) {
$params = (array) $request->getParsedBody();
return redirect($this->chartUrl($individual, [
'ancestor_generations' => $params['ancestor_generations'] ?? self::DEFAULT_ANCESTOR_GENERATIONS,
'descendant_generations' => $params['descendant_generations'] ?? self::DEFAULT_DESCENDANT_GENERATIONS,
'show_siblings' => $params['show_siblings'] ?? '1',
]));
}
$ancestorGenerations = Validator::queryParams($request)
->isBetween(self::MINIMUM_GENERATIONS, self::MAXIMUM_GENERATIONS)
->integer('ancestor_generations', self::DEFAULT_ANCESTOR_GENERATIONS);
$descendantGenerations = Validator::queryParams($request)
->isBetween(self::MINIMUM_GENERATIONS, self::MAXIMUM_GENERATIONS)
->integer('descendant_generations', self::DEFAULT_DESCENDANT_GENERATIONS);
$showSiblings = Validator::queryParams($request)
->string('show_siblings', '1') === '1';
// Check for AJAX request
$ajax = Validator::queryParams($request)->string('ajax', '') === '1';
$configuration = new Configuration(
$ancestorGenerations,
$descendantGenerations,
$showSiblings,
);
$dataFacade = new DataFacade();
$treeData = $dataFacade->buildFullTree($individual, $configuration);
if ($ajax) {
return response([
'data' => $treeData,
]);
}
return $this->viewResponse($this->name() . '::modules/full-diagram/page', [
'title' => $this->chartTitle($individual),
'individual' => $individual,
'module' => $this,
'tree' => $tree,
'configuration' => $configuration,
'tree_data' => json_encode($treeData, JSON_THROW_ON_ERROR),
'javascript_url' => $this->assetUrl('js/full-diagram.min.js'),
'stylesheet_url' => $this->assetUrl('css/full-diagram.css'),
'ancestor_generations' => $ancestorGenerations,
'descendant_generations' => $descendantGenerations,
'show_siblings' => $showSiblings,
'max_generations' => self::MAXIMUM_GENERATIONS,
'min_generations' => self::MINIMUM_GENERATIONS,
]);
}
}