1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
import * as React from "react"
import { useState, useEffect, useRef, useMemo, useCallback } from "react"
import { StyleProp, TextStyle, View, ViewStyle } from "react-native"
import { observer } from "mobx-react-lite"
import { color, typography } from "../../theme"
import { Text } from "../"
import { flatten } from "ramda"
//import data from "../../data/miserables.json"
//import genRandomTree from "../../data/randomdata";
//import rando from "../../data/rando.json"
import { ForceGraph2D, ForceGraph3D, ForceGraphVR, ForceGraphAR } from "react-force-graph"
import * as d3 from "d3-force"
const CONTAINER: ViewStyle = {
justifyContent: "center",
}
const TEXT: TextStyle = {
fontFamily: typography.primary,
fontSize: 14,
color: color.primary,
}
export interface GraphProps {
/**
* An optional style override useful for padding & margin.
*/
style?: StyleProp<ViewStyle>
physics
gData
nodeIds: string[]
}
/**
* Describe your component here
*/
export const Graph = observer(function Graph(props: GraphProps): JSX.Element {
const { style, physics, gData, nodeIds } = props
const styles = flatten([CONTAINER, style])
const fgRef = useRef()
const GROUPS: number = 12
const NODE_R: number = 8
//const gData = genRandomTree(200);
//const [charge, setCharge] = useState(-30);
//const [link, setLink] = useState(-30);
useEffect(() => {
const fg = fgRef.current
//fg.d3Force('center').strength(0.05);
fg.d3Force("link").strength(physics.linkStrength)
fg.d3Force("link").iterations(physics.linkIts)
physics.collision
? fg.d3Force("collide", d3.forceCollide().radius(20))
: fg.d3Force("collide", null)
fg.d3Force("charge").strength(physics.charge)
})
// For the expandable version of the graph
const rootId = 0
const nodesById = useMemo(() => {
const nodesById = Object.fromEntries(gData.nodes.map((node) => [node.id, node]))
// link parent/children
gData.nodes.forEach((node) => {
node.collapsed = node.id !== rootId
node.childLinks = []
node.parentLink = []
})
gData.links.forEach((link) => nodesById[link.source].childLinks.push(link))
return nodesById
}, [gData])
/* const getPrunedTree = useCallback(() => {
* const visibleNodes = [];
* const visibleLinks = [];
* (function traverseTree(node = nodesById[rootId]) {
* visibleNodes.push(node);
* if (node.collapsed) return
* visibleLinks.push(...node.childLinks)
* node.childLinks
* .map((link) => (typeof link.target === "object" ? link.target : nodesById[link.target])) // get child node
* .forEach(traverseTree)
* })()
* return { nodes: visibleNodes, links: visibleLinks }
* }, [nodesById])
* const [prunedTree, setPrunedTree] = useState(getPrunedTree())
* const handleNodeClick = useCallback((node) => {
* node.collapsed = !node.collapsed // toggle collapse state
* setPrunedTree(getPrunedTree())
* }, []);
*/
// Highlight Graph
/**
/* const data = useMemo(() => {
* // cross-link node objects
* rando.links.forEach(link => {
* const a = rando.nodes[link.source];
* const b = rando.nodes[link.target];
* !a.neighbors && (a.neighbors = []);
* !b.neighbors && (b.neighbors = []);
* a.neighbors.push(b);
* b.neighbors.push(a);
*
* !a.links && (a.links = []);
* !b.links && (b.links = []);
* a.links.push(link);
* b.links.push(link);
* });
*
* return rando;
* }, []);
* const [highlightNodes, setHighlightNodes] = useState(new Set());
* const [highlightLinks, setHighlightLinks] = useState(new Set());
* const [hoverNode, setHoverNode] = useState(null);
*
* const updateHighlight = () => {
* setHighlightNodes(highlightNodes);
* setHighlightLinks(highlightLinks);
* };
*
* const handleNodeHover = node => {
* highlightNodes.clear();
* highlightLinks.clear();
* if (node) {
* highlightNodes.add(node);
* node.neighbors.forEach(neighbor => highlightNodes.add(neighbor));
* node.links.forEach(link => highlightLinks.add(link));
* }
*
* setHoverNode(node || null);
* updateHighlight();
* };
*
* const handleLinkHover = link => {
* highlightNodes.clear();
* highlightLinks.clear();
*
* if (link) {
* highlightLinks.add(link);
* highlightNodes.add(link.source);
* highlightNodes.add(link.target);
* }
*
* updateHighlight();
* };
*
* const paintRing = useCallback((node, ctx) => {
* // add ring just for highlighted nodes
* ctx.beginPath();
* ctx.arc(node.x, node.y, NODE_R * 1.4, 0, 2 * Math.PI, false);
* ctx.fillStyle = node === hoverNode ? 'red' : 'orange';
* ctx.fill();
* }, [hoverNode]);
*/
/* autoPauseRedraw={false}
linkWidth={link => highlightLinks.has(link) ? 5 : 1}
linkDirectionalParticles={4}
linkDirectionalParticleWidth={link => highlightLinks.has(link) ? 4 : 0}
nodeCanvasObjectMode={node => highlightNodes.has(node) ? 'before' : undefined}
nodeCanvasObject={paintRing}
onNodeHover={handleNodeHover}
onLinkHover={handleLinkHover}
nodeRelSize={NODE_R} */
//nodeColor={(node) =>
// !node.childLinks.length ? "green" : node.collapsed ? "red" : "yellow"
//}
return (
<View>
{!physics.threedim ? (
<ForceGraph2D
ref={fgRef}
graphData={gData}
//graphData={physics.collapse ? prunedTree : gData}
nodeAutoColorBy="id"
linkAutoColorBy="target"
//linkAutoColorBy={(d) => gData.nodes[d.source].id % GROUPS}
linkColor="#ffffff"
linkDirectionalParticles={physics.particles}
//onNodeClick={!physics.collapse ? null : handleNodeClick}
nodeLabel={(node) => node.title}
//nodeVal ={(node)=> node.childLinks.length * 0.5 + 1}
//d3VelocityDecay={visco}
linkWidth={physics.linkWidth}
linkOpacity={physics.linkOpacity}
nodeRelSize={physics.nodeRel}
linkDirectionalParticleWidth={physics.particleWidth}
/>
) : (
<ForceGraph3D
ref={fgRef}
graphData={gData}
nodeAutoColorBy="group"
//graphData={physics.collapse ? prunedTree : gData}
// nodeAutoColorBy={d => d.id%GROUPS}
//linkAutoColorBy={(d) => gData.nodes[d.source].id % GROUPS}
linkColor="#ffffff"
linkWidth={2}
linkDirectionalParticles={physics.particles}
//nodeColor={(node) =>
// !node.childLinks.length ? "green" : node.collapsed ? "red" : "yellow"
//}
//onNodeClick={!physics.collapse ? null : handleNodeClick}
nodeLabel={node => node.title}
//nodeVal={(node) => node.childLinks.length + 1}
//d3VelocityDecay={visco}
linkWidth={physics.linkWidth}
linkOpacity={physics.linkOpacity}
nodeRelSize={physics.nodeRel}
linkDirectionalParticleWidth={physics.particleWidth}
backgroundColor="#1d1d1d"
/>
)}
</View>
)
})
|
