forked from vasturiano/force-graph
-
Notifications
You must be signed in to change notification settings - Fork 0
/
force-graph.js
652 lines (565 loc) · 22.5 KB
/
force-graph.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
import { select as d3Select } from 'd3-selection';
import { zoom as d3Zoom, zoomTransform as d3ZoomTransform } from 'd3-zoom';
import { drag as d3Drag } from 'd3-drag';
import { max as d3Max, min as d3Min } from 'd3-array';
import { throttle } from 'lodash-es';
import * as TWEEN from '@tweenjs/tween.js';
import Kapsule from 'kapsule';
import accessorFn from 'accessor-fn';
import ColorTracker from 'canvas-color-tracker';
import CanvasForceGraph from './canvas-force-graph';
import linkKapsule from './kapsule-link.js';
const HOVER_CANVAS_THROTTLE_DELAY = 800; // ms to throttle shadow canvas updates for perf improvement
const ZOOM2NODES_FACTOR = 4;
// Expose config from forceGraph
const bindFG = linkKapsule('forceGraph', CanvasForceGraph);
const bindBoth = linkKapsule(['forceGraph', 'shadowGraph'], CanvasForceGraph);
const linkedProps = Object.assign(
...[
'nodeColor',
'nodeAutoColorBy',
'nodeCanvasObject',
'nodeCanvasObjectMode',
'linkColor',
'linkAutoColorBy',
'linkLineDash',
'linkWidth',
'linkCanvasObject',
'linkCanvasObjectMode',
'linkDirectionalArrowLength',
'linkDirectionalArrowColor',
'linkDirectionalArrowRelPos',
'linkDirectionalParticles',
'linkDirectionalParticleSpeed',
'linkDirectionalParticleWidth',
'linkDirectionalParticleColor',
'dagMode',
'dagLevelDistance',
'dagNodeFilter',
'onDagError',
'd3AlphaMin',
'd3AlphaDecay',
'd3VelocityDecay',
'warmupTicks',
'cooldownTicks',
'cooldownTime',
'onEngineTick',
'onEngineStop'
].map(p => ({ [p]: bindFG.linkProp(p)})),
...[
'nodeRelSize',
'nodeId',
'nodeVal',
'nodeVisibility',
'linkSource',
'linkTarget',
'linkVisibility',
'linkCurvature'
].map(p => ({ [p]: bindBoth.linkProp(p)}))
);
const linkedMethods = Object.assign(...[
'd3Force',
'd3ReheatSimulation',
'emitParticle'
].map(p => ({ [p]: bindFG.linkMethod(p)})));
function adjustCanvasSize(state) {
if (state.canvas) {
let curWidth = state.canvas.width;
let curHeight = state.canvas.height;
if (curWidth === 300 && curHeight === 150) { // Default canvas dimensions
curWidth = curHeight = 0;
}
const pxScale = window.devicePixelRatio; // 2 on retina displays
curWidth /= pxScale;
curHeight /= pxScale;
// Resize canvases
[state.canvas, state.shadowCanvas].forEach(canvas => {
// Element size
canvas.style.width = `${state.width}px`;
canvas.style.height = `${state.height}px`;
// Memory size (scaled to avoid blurriness)
canvas.width = state.width * pxScale;
canvas.height = state.height * pxScale;
// Normalize coordinate system to use css pixels (on init only)
if (!curWidth && !curHeight) {
canvas.getContext('2d').scale(pxScale, pxScale);
}
});
// Relative center panning based on 0,0
const k = d3ZoomTransform(state.canvas).k;
state.zoom.translateBy(state.zoom.__baseElem,
(state.width - curWidth) / 2 / k,
(state.height - curHeight) / 2 / k
);
state.needsRedraw = true;
}
}
function resetTransform(ctx) {
const pxRatio = window.devicePixelRatio;
ctx.setTransform(pxRatio, 0, 0, pxRatio, 0, 0);
}
function clearCanvas(ctx, width, height) {
ctx.save();
resetTransform(ctx); // reset transform
ctx.clearRect(0, 0, width, height);
ctx.restore(); //restore transforms
}
//
export default Kapsule({
props:{
width: { default: window.innerWidth, onChange: (_, state) => adjustCanvasSize(state), triggerUpdate: false } ,
height: { default: window.innerHeight, onChange: (_, state) => adjustCanvasSize(state), triggerUpdate: false },
graphData: {
default: { nodes: [], links: [] },
onChange: ((d, state) => {
[{ type: 'Node', objs: d.nodes }, { type: 'Link', objs: d.links }].forEach(hexIndex);
state.forceGraph.graphData(d);
state.shadowGraph.graphData(d);
function hexIndex({ type, objs }) {
objs
.filter(d => {
if (!d.hasOwnProperty('__indexColor')) return true;
const cur = state.colorTracker.lookup(d.__indexColor);
return (!cur || !cur.hasOwnProperty('d') || cur.d !== d);
})
.forEach(d => {
// store object lookup color
d.__indexColor = state.colorTracker.register({ type, d });
});
}
}),
triggerUpdate: false
},
backgroundColor: { onChange(color, state) { state.canvas && color && (state.canvas.style.background = color) }, triggerUpdate: false },
nodeLabel: { default: 'name', triggerUpdate: false },
nodePointerAreaPaint: { onChange(paintFn, state) {
state.shadowGraph.nodeCanvasObject(!paintFn ? null :
(node, ctx, globalScale) => paintFn(node, node.__indexColor, ctx, globalScale)
);
state.flushShadowCanvas && state.flushShadowCanvas();
}, triggerUpdate: false },
linkPointerAreaPaint: { onChange(paintFn, state) {
state.shadowGraph.linkCanvasObject(!paintFn ? null :
(link, ctx, globalScale) => paintFn(link, link.__indexColor, ctx, globalScale)
);
state.flushShadowCanvas && state.flushShadowCanvas();
}, triggerUpdate: false },
linkLabel: { default: 'name', triggerUpdate: false },
linkHoverPrecision: { default: 4, triggerUpdate: false },
minZoom: { default: 0.01, onChange(minZoom, state) { state.zoom.scaleExtent([minZoom, state.zoom.scaleExtent()[1]]); }, triggerUpdate: false },
maxZoom: { default: 1000, onChange(maxZoom, state) { state.zoom.scaleExtent([state.zoom.scaleExtent()[0], maxZoom]) }, triggerUpdate: false },
enableNodeDrag: { default: true, triggerUpdate: false },
enableZoomInteraction: { default: true, triggerUpdate: false },
enablePanInteraction: { default: true, triggerUpdate: false },
enableZoomPanInteraction: { default: true, triggerUpdate: false }, // to be deprecated
enablePointerInteraction: { default: true, onChange(_, state) { state.hoverObj = null; }, triggerUpdate: false },
autoPauseRedraw: { default: true, triggerUpdate: false },
onNodeDrag: { default: () => {}, triggerUpdate: false },
onNodeDragEnd: { default: () => {}, triggerUpdate: false },
onNodeClick: { triggerUpdate: false },
onNodeRightClick: { triggerUpdate: false },
onNodeHover: { triggerUpdate: false },
onLinkClick: { triggerUpdate: false },
onLinkRightClick: { triggerUpdate: false },
onLinkHover: { triggerUpdate: false },
onBackgroundClick: { triggerUpdate: false },
onBackgroundRightClick: { triggerUpdate: false },
onZoom: { triggerUpdate: false },
onZoomEnd: { triggerUpdate: false },
onRenderFramePre: { triggerUpdate: false },
onRenderFramePost: { triggerUpdate: false },
onRendered: { default: () => {}, triggerUpdate: false},
...linkedProps
},
aliases: { // Prop names supported for backwards compatibility
stopAnimation: 'pauseAnimation'
},
methods: {
graph2ScreenCoords: function(state, x, y) {
const t = d3ZoomTransform(state.canvas);
return { x: x * t.k + t.x, y: y * t.k + t.y };
},
screen2GraphCoords: function(state, x, y) {
const t = d3ZoomTransform(state.canvas);
return { x: (x - t.x) / t.k, y: (y - t.y) / t.k };
},
centerAt: function(state, x, y, transitionDuration) {
if (!state.canvas) return null; // no canvas yet
// setter
if (x !== undefined || y !== undefined) {
const finalPos = Object.assign({},
x !== undefined ? { x } : {},
y !== undefined ? { y } : {}
);
if (!transitionDuration) { // no animation
setCenter(finalPos);
} else {
new TWEEN.Tween(getCenter())
.to(finalPos, transitionDuration)
.easing(TWEEN.Easing.Quadratic.Out)
.onUpdate(setCenter)
.start();
}
return this;
}
// getter
return getCenter();
//
function getCenter() {
const t = d3ZoomTransform(state.canvas);
return { x: (state.width / 2 - t.x) / t.k, y: (state.height / 2 - t.y) / t.k };
}
function setCenter({ x, y }) {
state.zoom.translateTo(
state.zoom.__baseElem,
x === undefined ? getCenter().x : x,
y === undefined ? getCenter().y : y
);
state.needsRedraw = true;
}
},
zoom: function(state, k, transitionDuration) {
if (!state.canvas) return null; // no canvas yet
// setter
if (k !== undefined) {
if (!transitionDuration) { // no animation
setZoom(k);
} else {
new TWEEN.Tween({ k: getZoom() })
.to({ k }, transitionDuration)
.easing(TWEEN.Easing.Quadratic.Out)
.onUpdate(({ k }) => setZoom(k))
.start();
}
return this;
}
// getter
return getZoom();
//
function getZoom() {
return d3ZoomTransform(state.canvas).k;
}
function setZoom(k) {
state.zoom.scaleTo(state.zoom.__baseElem, k);
state.needsRedraw = true;
}
},
zoomToFit: function(state, transitionDuration = 0, padding = 10, ...bboxArgs) {
const bbox = this.getGraphBbox(...bboxArgs);
if (bbox) {
const center = {
x: (bbox.x[0] + bbox.x[1]) / 2,
y: (bbox.y[0] + bbox.y[1]) / 2,
};
const zoomK = Math.max(1e-12, Math.min(1e12,
(state.width - padding * 2) / (bbox.x[1] - bbox.x[0]),
(state.height - padding * 2) / (bbox.y[1] - bbox.y[0]))
);
this.centerAt(center.x, center.y, transitionDuration);
this.zoom(zoomK, transitionDuration);
}
return this;
},
getGraphBbox: function(state, nodeFilter = () => true) {
const getVal = accessorFn(state.nodeVal);
const getR = node => Math.sqrt(Math.max(0, getVal(node) || 1)) * state.nodeRelSize;
const nodesPos = state.graphData.nodes.filter(nodeFilter).map(node => ({
x: node.x,
y: node.y,
r: getR(node)
}));
return !nodesPos.length ? null : {
x: [
d3Min(nodesPos, node => node.x - node.r),
d3Max(nodesPos, node => node.x + node.r)
],
y: [
d3Min(nodesPos, node => node.y - node.r),
d3Max(nodesPos, node => node.y + node.r)
]
};
},
pauseAnimation: function(state) {
if (state.animationFrameRequestId) {
cancelAnimationFrame(state.animationFrameRequestId);
state.animationFrameRequestId = null;
}
return this;
},
resumeAnimation: function(state) {
if (!state.animationFrameRequestId) {
this._animationCycle();
}
return this;
},
_destructor: function() {
this.pauseAnimation();
this.graphData({ nodes: [], links: []});
},
...linkedMethods
},
stateInit: () => ({
lastSetZoom: 1,
zoom: d3Zoom(),
forceGraph: new CanvasForceGraph(),
shadowGraph: new CanvasForceGraph()
.cooldownTicks(0)
.nodeColor('__indexColor')
.linkColor('__indexColor')
.isShadow(true),
colorTracker: new ColorTracker() // indexed objects for rgb lookup
}),
init: function(domNode, state) {
// Wipe DOM
domNode.innerHTML = '';
// Container anchor for canvas and tooltip
const container = document.createElement('div');
container.classList.add('force-graph-container');
container.style.position = 'relative';
domNode.appendChild(container);
state.canvas = document.createElement('canvas');
if (state.backgroundColor) state.canvas.style.background = state.backgroundColor;
container.appendChild(state.canvas);
state.shadowCanvas = document.createElement('canvas');
// Show shadow canvas
//state.shadowCanvas.style.position = 'absolute';
//state.shadowCanvas.style.top = '0';
//state.shadowCanvas.style.left = '0';
//container.appendChild(state.shadowCanvas);
const ctx = state.canvas.getContext('2d');
const shadowCtx = state.shadowCanvas.getContext('2d', { willReadFrequently: true });
const pointerPos = { x: -1e12, y: -1e12 };
const getObjUnderPointer = () => {
let obj = null;
const pxScale = window.devicePixelRatio;
const px = (pointerPos.x > 0 && pointerPos.y > 0)
? shadowCtx.getImageData(pointerPos.x * pxScale, pointerPos.y * pxScale, 1, 1)
: null;
// Lookup object per pixel color
px && (obj = state.colorTracker.lookup(px.data));
return obj;
};
// Setup node drag interaction
d3Select(state.canvas).call(
d3Drag()
.subject(() => {
if (!state.enableNodeDrag) { return null; }
const obj = getObjUnderPointer();
return (obj && obj.type === 'Node') ? obj.d : null; // Only drag nodes
})
.on('start', ev => {
const obj = ev.subject;
obj.__initialDragPos = { x: obj.x, y: obj.y, fx: obj.fx, fy: obj.fy };
// keep engine running at low intensity throughout drag
if (!ev.active) {
obj.fx = obj.x; obj.fy = obj.y; // Fix points
}
// drag cursor
state.canvas.classList.add('grabbable');
})
.on('drag', ev => {
const obj = ev.subject;
const initPos = obj.__initialDragPos;
const dragPos = ev;
const k = d3ZoomTransform(state.canvas).k;
const translate = {
x: (initPos.x + (dragPos.x - initPos.x) / k) - obj.x,
y: (initPos.y + (dragPos.y - initPos.y) / k) - obj.y
};
// Move fx/fy (and x/y) of nodes based on the scaled drag distance since the drag start
['x', 'y'].forEach(c => obj[`f${c}`] = obj[c] = initPos[c] + (dragPos[c] - initPos[c]) / k);
// prevent freeze while dragging
state.forceGraph
.d3AlphaTarget(0.3) // keep engine running at low intensity throughout drag
.resetCountdown(); // prevent freeze while dragging
state.isPointerDragging = true;
obj.__dragged = true;
state.onNodeDrag(obj, translate);
})
.on('end', ev => {
const obj = ev.subject;
const initPos = obj.__initialDragPos;
const translate = {x: obj.x - initPos.x, y: obj.y - initPos.y};
if (initPos.fx === undefined) { obj.fx = undefined; }
if (initPos.fy === undefined) { obj.fy = undefined; }
delete(obj.__initialDragPos);
if (state.forceGraph.d3AlphaTarget()) {
state.forceGraph
.d3AlphaTarget(0) // release engine low intensity
.resetCountdown(); // let the engine readjust after releasing fixed nodes
}
// drag cursor
state.canvas.classList.remove('grabbable');
state.isPointerDragging = false;
if (obj.__dragged) {
delete(obj.__dragged);
state.onNodeDragEnd(obj, translate);
}
})
);
// Setup zoom / pan interaction
state.zoom(state.zoom.__baseElem = d3Select(state.canvas)); // Attach controlling elem for easy access
state.zoom.__baseElem.on('dblclick.zoom', null); // Disable double-click to zoom
state.zoom
.filter(ev =>
// disable zoom interaction
!ev.button
&& state.enableZoomPanInteraction
&& (state.enableZoomInteraction || ev.type !== 'wheel')
&& (state.enablePanInteraction || ev.type === 'wheel')
)
.on('zoom', ev => {
const t = ev.transform;
[ctx, shadowCtx].forEach(c => {
resetTransform(c);
c.translate(t.x, t.y);
c.scale(t.k, t.k);
});
state.onZoom && state.onZoom({ ...t, ...this.centerAt() }); // report x,y coordinates relative to canvas center
state.needsRedraw = true;
})
.on('end', ev => state.onZoomEnd && state.onZoomEnd({ ...ev.transform, ...this.centerAt() }));
adjustCanvasSize(state);
state.forceGraph
.onNeedsRedraw(() => state.needsRedraw = true)
.onFinishUpdate(() => {
// re-zoom, if still in default position (not user modified)
if (d3ZoomTransform(state.canvas).k === state.lastSetZoom && state.graphData.nodes.length) {
state.zoom.scaleTo(state.zoom.__baseElem,
state.lastSetZoom = ZOOM2NODES_FACTOR / Math.cbrt(state.graphData.nodes.length)
);
state.needsRedraw = true;
}
state.onRendered()
});
// Setup tooltip
const toolTipElem = document.createElement('div');
toolTipElem.classList.add('graph-tooltip');
container.appendChild(toolTipElem);
// Capture pointer coords on move or touchstart
['pointermove', 'pointerdown'].forEach(evType =>
container.addEventListener(evType, ev => {
if (evType === 'pointerdown') {
state.isPointerPressed = true; // track click state
state.pointerDownEvent = ev;
}
// detect pointer drag on canvas pan
!state.isPointerDragging && ev.type === 'pointermove'
&& (state.onBackgroundClick) // only bother detecting drags this way if background clicks are enabled (so they don't trigger accidentally on canvas panning)
&& (ev.pressure > 0 || state.isPointerPressed) // ev.pressure always 0 on Safari, so we use the isPointerPressed tracker
&& (ev.pointerType !== 'touch' || ev.movementX === undefined || [ev.movementX, ev.movementY].some(m => Math.abs(m) > 1)) // relax drag trigger sensitivity on touch events
&& (state.isPointerDragging = true);
// update the pointer pos
const offset = getOffset(container);
pointerPos.x = ev.pageX - offset.left;
pointerPos.y = ev.pageY - offset.top;
// Move tooltip
toolTipElem.style.top = `${pointerPos.y}px`;
toolTipElem.style.left = `${pointerPos.x}px`;
// adjust horizontal position to not exceed canvas boundaries
toolTipElem.style.transform = `translate(-${pointerPos.x / state.width * 100}%, ${
// flip to above if near bottom
state.height - pointerPos.y < 100 ? 'calc(-100% - 8px)' : '21px'
})`;
//
function getOffset(el) {
const rect = el.getBoundingClientRect(),
scrollLeft = window.pageXOffset || document.documentElement.scrollLeft,
scrollTop = window.pageYOffset || document.documentElement.scrollTop;
return { top: rect.top + scrollTop, left: rect.left + scrollLeft };
}
}, { passive: true })
);
// Handle click/touch events on nodes/links
container.addEventListener('pointerup', ev => {
state.isPointerPressed = false;
if (state.isPointerDragging) {
state.isPointerDragging = false;
return; // don't trigger click events after pointer drag (pan / node drag functionality)
}
const cbEvents = [ev, state.pointerDownEvent];
requestAnimationFrame(() => { // trigger click events asynchronously, to allow hoverObj to be set (on frame)
if (ev.button === 0) { // mouse left-click or touch
if (state.hoverObj) {
const fn = state[`on${state.hoverObj.type}Click`];
fn && fn(state.hoverObj.d, ...cbEvents);
} else {
state.onBackgroundClick && state.onBackgroundClick(...cbEvents);
}
}
if (ev.button === 2) { // mouse right-click
if (state.hoverObj) {
const fn = state[`on${state.hoverObj.type}RightClick`];
fn && fn(state.hoverObj.d, ...cbEvents);
} else {
state.onBackgroundRightClick && state.onBackgroundRightClick(...cbEvents);
}
}
});
}, { passive: true });
container.addEventListener('contextmenu', ev => {
if (!state.onBackgroundRightClick && !state.onNodeRightClick && !state.onLinkRightClick) return true; // default contextmenu behavior
ev.preventDefault();
return false;
});
state.forceGraph(ctx);
state.shadowGraph(shadowCtx);
//
const refreshShadowCanvas = throttle(() => {
// wipe canvas
clearCanvas(shadowCtx, state.width, state.height);
// Adjust link hover area
state.shadowGraph.linkWidth(l => accessorFn(state.linkWidth)(l) + state.linkHoverPrecision);
// redraw
const t = d3ZoomTransform(state.canvas);
state.shadowGraph.globalScale(t.k).tickFrame();
}, HOVER_CANVAS_THROTTLE_DELAY);
state.flushShadowCanvas = refreshShadowCanvas.flush; // hook to immediately invoke shadow canvas paint
// Kick-off renderer
(this._animationCycle = function animate() { // IIFE
const doRedraw = !state.autoPauseRedraw || !!state.needsRedraw || state.forceGraph.isEngineRunning()
|| state.graphData.links.some(d => d.__photons && d.__photons.length);
state.needsRedraw = false;
if (state.enablePointerInteraction) {
// Update tooltip and trigger onHover events
const obj = !state.isPointerDragging ? getObjUnderPointer() : null; // don't hover during drag
if (obj !== state.hoverObj) {
const prevObj = state.hoverObj;
const prevObjType = prevObj ? prevObj.type : null;
const objType = obj ? obj.type : null;
if (prevObjType && prevObjType !== objType) {
// Hover out
const fn = state[`on${prevObjType}Hover`];
fn && fn(null, prevObj.d);
}
if (objType) {
// Hover in
const fn = state[`on${objType}Hover`];
fn && fn(obj.d, prevObjType === objType ? prevObj.d : null);
}
const tooltipContent = obj ? accessorFn(state[`${obj.type.toLowerCase()}Label`])(obj.d) || '' : '';
toolTipElem.style.visibility = tooltipContent ? 'visible' : 'hidden';
toolTipElem.innerHTML = tooltipContent;
// set pointer if hovered object is clickable
state.canvas.classList[
((obj && state[`on${objType}Click`]) || (!obj && state.onBackgroundClick)) ? 'add' : 'remove'
]('clickable');
state.hoverObj = obj;
}
doRedraw && refreshShadowCanvas();
}
if(doRedraw) {
// Wipe canvas
clearCanvas(ctx, state.width, state.height);
// Frame cycle
const globalScale = d3ZoomTransform(state.canvas).k;
state.onRenderFramePre && state.onRenderFramePre(ctx, globalScale);
state.forceGraph.globalScale(globalScale).tickFrame();
state.onRenderFramePost && state.onRenderFramePost(ctx, globalScale);
}
TWEEN.update(); // update canvas animation tweens
state.animationFrameRequestId = requestAnimationFrame(animate);
})();
},
update: function updateFn(state) {}
});