16232812979

Committed 12 Jul 2025 12:28AM UTC coverage: 70.153% (+2.5%) from 67.674%

Build # 16232812979

Build Type

push

github

Committed by

apowers313

Commit Message

test: add tests for PointerRenderer

Run Details

465 of 661 branches covered (70.35%)

Branch coverage included in aggregate %.

3801 of 5420 relevant lines covered (70.13%)

1174.4 hits per line

Source File
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59.62

/src/layout/ForceAtlas2LayoutEngine.ts

import {Edge as LayoutEdge, forceatlas2Layout, Node as LayoutNode} from "@graphty/layout";
import {z} from "zod/v4";

import {SimpleLayoutConfig, SimpleLayoutEngine} from "./LayoutEngine";

export const ForceAtlas2LayoutConfig = z.strictObject({
    ... SimpleLayoutConfig.shape,
    pos: z.record(z.number(), z.array(z.number()).min(2).max(3)).or(z.null()).default(null),
    maxIter: z.number().positive().default(100),
    jitterTolerance: z.number().positive().default(1.0),
    scalingRatio: z.number().positive().default(2.0),
    gravity: z.number().positive().default(1.0),
    distributedAction: z.boolean().default(false),
    strongGravity: z.boolean().default(false),
    nodeMass: z.record(z.number(), z.number()).or(z.null()).default(null),
    nodeSize: z.record(z.number(), z.number()).or(z.null()).default(null),
    weightPath: z.string().or(z.null()).default(null),
    dissuadeHubs: z.boolean().default(false),
    linlog: z.boolean().default(false),
    seed: z.number().or(z.null()).default(null),
    dim: z.number().default(2),
});
export type ForceAtlas2LayoutConfigType = z.infer<typeof ForceAtlas2LayoutConfig>;
export type ForceAtlas2LayoutOpts = Partial<ForceAtlas2LayoutConfigType>;

export class ForceAtlas2Layout extends SimpleLayoutEngine {
    static type = "forceatlas2";
    static maxDimensions = 3;
    scalingFactor = 100;
    config: ForceAtlas2LayoutConfigType;

    constructor(opts: ForceAtlas2LayoutOpts) {
        super(opts);
        this.config = ForceAtlas2LayoutConfig.parse(opts);
    }

    doLayout(): void {
        this.stale = false;
        const nodes = (): LayoutNode[] => this._nodes.map((n) => n.id as LayoutNode);
        const edges = (): LayoutEdge[] => this._edges.map((e) => [e.srcId, e.dstId] as LayoutEdge);

        this.positions = forceatlas2Layout(
            {nodes, edges},
            this.config.pos,
            this.config.maxIter,
            this.config.jitterTolerance,
            this.config.scalingRatio,
            this.config.gravity,
            this.config.distributedAction,
            this.config.strongGravity,
            this.config.nodeMass,
            this.config.nodeSize,
            this.config.weightPath,
            this.config.dissuadeHubs,
            this.config.linlog,
            this.config.seed,
            this.config.dim,
        );
    }
}

1	import {Edge as LayoutEdge, forceatlas2Layout, Node as LayoutNode} from "@graphty/layout";	1✔
2	import {z} from "zod/v4";	1✔
3
4	import {SimpleLayoutConfig, SimpleLayoutEngine} from "./LayoutEngine";	1✔
5
6	export const ForceAtlas2LayoutConfig = z.strictObject({	1✔
7	... SimpleLayoutConfig.shape,	1✔
8	pos: z.record(z.number(), z.array(z.number()).min(2).max(3)).or(z.null()).default(null),	1✔
9	maxIter: z.number().positive().default(100),	1✔
10	jitterTolerance: z.number().positive().default(1.0),	1✔
11	scalingRatio: z.number().positive().default(2.0),	1✔
12	gravity: z.number().positive().default(1.0),	1✔
13	distributedAction: z.boolean().default(false),	1✔
14	strongGravity: z.boolean().default(false),	1✔
15	nodeMass: z.record(z.number(), z.number()).or(z.null()).default(null),	1✔
16	nodeSize: z.record(z.number(), z.number()).or(z.null()).default(null),	1✔
17	weightPath: z.string().or(z.null()).default(null),	1✔
18	dissuadeHubs: z.boolean().default(false),	1✔
19	linlog: z.boolean().default(false),	1✔
20	seed: z.number().or(z.null()).default(null),	1✔
21	dim: z.number().default(2),	1✔
22	});	1✔
23	export type ForceAtlas2LayoutConfigType = z.infer<typeof ForceAtlas2LayoutConfig>;
24	export type ForceAtlas2LayoutOpts = Partial<ForceAtlas2LayoutConfigType>;
25
26	export class ForceAtlas2Layout extends SimpleLayoutEngine {	1✔
27	static type = "forceatlas2";	1✔
28	static maxDimensions = 3;	1✔
29	scalingFactor = 100;	1✔
30	config: ForceAtlas2LayoutConfigType;
31
32	constructor(opts: ForceAtlas2LayoutOpts) {	1✔
33	super(opts);	1✔
34	this.config = ForceAtlas2LayoutConfig.parse(opts);	1✔
35	}	1✔
36
37	doLayout(): void {	1✔
38	this.stale = false;	×
39	const nodes = (): LayoutNode[] => this._nodes.map((n) => n.id as LayoutNode);	×
40	const edges = (): LayoutEdge[] => this._edges.map((e) => [e.srcId, e.dstId] as LayoutEdge);	×
41
42	this.positions = forceatlas2Layout(	×
43	{nodes, edges},	×
44	this.config.pos,	×
45	this.config.maxIter,	×
46	this.config.jitterTolerance,	×
47	this.config.scalingRatio,	×
48	this.config.gravity,	×
49	this.config.distributedAction,	×
50	this.config.strongGravity,	×
51	this.config.nodeMass,	×
52	this.config.nodeSize,	×
53	this.config.weightPath,	×
54	this.config.dissuadeHubs,	×
55	this.config.linlog,	×
56	this.config.seed,	×
57	this.config.dim,	×
58	);	×
59	}	×
60	}	1✔

graphty-org / graphty-element / 16232812979

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