获取指向 D3 视觉对象中单击元素的路径 (flare.json)
Get path leading to clicked element in D3 visual (flare.json)
我正在使用 well-known flare.json 文件：
{
"name": "flare",
"children": [
{
"name": "analytics",
"children": [
{
"name": "cluster",
"children": [
{"name": "AgglomerativeCluster", "value": 3938},
{"name": "CommunityStructure", "value": 3812},
{"name": "HierarchicalCluster", "value": 6714},
{"name": "MergeEdge", "value": 743}
]
},
{
"name": "graph",
"children": [
{"name": "BetweennessCentrality", "value": 3534},
{"name": "LinkDistance", "value": 5731},
{"name": "MaxFlowMinCut", "value": 7840},
{"name": "ShortestPaths", "value": 5914},
{"name": "SpanningTree", "value": 3416}
]
},
{
"name": "optimization",
"children": [
{"name": "AspectRatioBanker", "value": 7074}
]
}
]
},
{
"name": "animate",
"children": [
{"name": "Easing", "value": 17010},
{"name": "FunctionSequence", "value": 5842},
{
"name": "interpolate",
"children": [
{"name": "ArrayInterpolator", "value": 1983},
{"name": "ColorInterpolator", "value": 2047},
{"name": "DateInterpolator", "value": 1375},
{"name": "Interpolator", "value": 8746},
{"name": "MatrixInterpolator", "value": 2202},
{"name": "NumberInterpolator", "value": 1382},
{"name": "ObjectInterpolator", "value": 1629},
{"name": "PointInterpolator", "value": 1675},
{"name": "RectangleInterpolator", "value": 2042}
]
},
{"name": "ISchedulable", "value": 1041},
{"name": "Parallel", "value": 5176},
{"name": "Pause", "value": 449},
{"name": "Scheduler", "value": 5593},
{"name": "Sequence", "value": 5534},
{"name": "Transition", "value": 9201},
{"name": "Transitioner", "value": 19975},
{"name": "TransitionEvent", "value": 1116},
{"name": "Tween", "value": 6006}
]
},
{
"name": "data",
"children": [
{
"name": "converters",
"children": [
{"name": "Converters", "value": 721},
{"name": "DelimitedTextConverter", "value": 4294},
{"name": "GraphMLConverter", "value": 9800},
{"name": "IDataConverter", "value": 1314},
{"name": "JSONConverter", "value": 2220}
]
},
{"name": "DataField", "value": 1759},
{"name": "DataSchema", "value": 2165},
{"name": "DataSet", "value": 586},
{"name": "DataSource", "value": 3331},
{"name": "DataTable", "value": 772},
{"name": "DataUtil", "value": 3322}
]
},
{
"name": "display",
"children": [
{"name": "DirtySprite", "value": 8833},
{"name": "LineSprite", "value": 1732},
{"name": "RectSprite", "value": 3623},
{"name": "TextSprite", "value": 10066}
]
},
{
"name": "flex",
"children": [
{"name": "FlareVis", "value": 4116}
]
},
{
"name": "physics",
"children": [
{"name": "DragForce", "value": 1082},
{"name": "GravityForce", "value": 1336},
{"name": "IForce", "value": 319},
{"name": "NBodyForce", "value": 10498},
{"name": "Particle", "value": 2822},
{"name": "Simulation", "value": 9983},
{"name": "Spring", "value": 2213},
{"name": "SpringForce", "value": 1681}
]
},
{
"name": "query",
"children": [
{"name": "AggregateExpression", "value": 1616},
{"name": "And", "value": 1027},
{"name": "Arithmetic", "value": 3891},
{"name": "Average", "value": 891},
{"name": "BinaryExpression", "value": 2893},
{"name": "Comparison", "value": 5103},
{"name": "CompositeExpression", "value": 3677},
{"name": "Count", "value": 781},
{"name": "DateUtil", "value": 4141},
{"name": "Distinct", "value": 933},
{"name": "Expression", "value": 5130},
{"name": "ExpressionIterator", "value": 3617},
{"name": "Fn", "value": 3240},
{"name": "If", "value": 2732},
{"name": "IsA", "value": 2039},
{"name": "Literal", "value": 1214},
{"name": "Match", "value": 3748},
{"name": "Maximum", "value": 843},
{
"name": "methods",
"children": [
{"name": "add", "value": 593},
{"name": "and", "value": 330},
{"name": "average", "value": 287},
{"name": "count", "value": 277},
{"name": "distinct", "value": 292},
{"name": "div", "value": 595},
{"name": "eq", "value": 594},
{"name": "fn", "value": 460},
{"name": "gt", "value": 603},
{"name": "gte", "value": 625},
{"name": "iff", "value": 748},
{"name": "isa", "value": 461},
{"name": "lt", "value": 597},
{"name": "lte", "value": 619},
{"name": "max", "value": 283},
{"name": "min", "value": 283},
{"name": "mod", "value": 591},
{"name": "mul", "value": 603},
{"name": "neq", "value": 599},
{"name": "not", "value": 386},
{"name": "or", "value": 323},
{"name": "orderby", "value": 307},
{"name": "range", "value": 772},
{"name": "select", "value": 296},
{"name": "stddev", "value": 363},
{"name": "sub", "value": 600},
{"name": "sum", "value": 280},
{"name": "update", "value": 307},
{"name": "variance", "value": 335},
{"name": "where", "value": 299},
{"name": "xor", "value": 354},
{"name": "_", "value": 264}
]
},
{"name": "Minimum", "value": 843},
{"name": "Not", "value": 1554},
{"name": "Or", "value": 970},
{"name": "Query", "value": 13896},
{"name": "Range", "value": 1594},
{"name": "StringUtil", "value": 4130},
{"name": "Sum", "value": 791},
{"name": "Variable", "value": 1124},
{"name": "Variance", "value": 1876},
{"name": "Xor", "value": 1101}
]
},
{
"name": "scale",
"children": [
{"name": "IScaleMap", "value": 2105},
{"name": "LinearScale", "value": 1316},
{"name": "LogScale", "value": 3151},
{"name": "OrdinalScale", "value": 3770},
{"name": "QuantileScale", "value": 2435},
{"name": "QuantitativeScale", "value": 4839},
{"name": "RootScale", "value": 1756},
{"name": "Scale", "value": 4268},
{"name": "ScaleType", "value": 1821},
{"name": "TimeScale", "value": 5833}
]
},
{
"name": "util",
"children": [
{"name": "Arrays", "value": 8258},
{"name": "Colors", "value": 10001},
{"name": "Dates", "value": 8217},
{"name": "Displays", "value": 12555},
{"name": "Filter", "value": 2324},
{"name": "Geometry", "value": 10993},
{
"name": "heap",
"children": [
{"name": "FibonacciHeap", "value": 9354},
{"name": "HeapNode", "value": 1233}
]
},
{"name": "IEvaluable", "value": 335},
{"name": "IPredicate", "value": 383},
{"name": "IValueProxy", "value": 874},
{
"name": "math",
"children": [
{"name": "DenseMatrix", "value": 3165},
{"name": "IMatrix", "value": 2815},
{"name": "SparseMatrix", "value": 3366}
]
},
{"name": "Maths", "value": 17705},
{"name": "Orientation", "value": 1486},
{
"name": "palette",
"children": [
{"name": "ColorPalette", "value": 6367},
{"name": "Palette", "value": 1229},
{"name": "ShapePalette", "value": 2059},
{"name": "SizePalette", "value": 2291}
]
},
{"name": "Property", "value": 5559},
{"name": "Shapes", "value": 19118},
{"name": "Sort", "value": 6887},
{"name": "Stats", "value": 6557},
{"name": "Strings", "value": 22026}
]
},
{
"name": "vis",
"children": [
{
"name": "axis",
"children": [
{"name": "Axes", "value": 1302},
{"name": "Axis", "value": 24593},
{"name": "AxisGridLine", "value": 652},
{"name": "AxisLabel", "value": 636},
{"name": "CartesianAxes", "value": 6703}
]
},
{
"name": "controls",
"children": [
{"name": "AnchorControl", "value": 2138},
{"name": "ClickControl", "value": 3824},
{"name": "Control", "value": 1353},
{"name": "ControlList", "value": 4665},
{"name": "DragControl", "value": 2649},
{"name": "ExpandControl", "value": 2832},
{"name": "HoverControl", "value": 4896},
{"name": "IControl", "value": 763},
{"name": "PanZoomControl", "value": 5222},
{"name": "SelectionControl", "value": 7862},
{"name": "TooltipControl", "value": 8435}
]
},
{
"name": "data",
"children": [
{"name": "Data", "value": 20544},
{"name": "DataList", "value": 19788},
{"name": "DataSprite", "value": 10349},
{"name": "EdgeSprite", "value": 3301},
{"name": "NodeSprite", "value": 19382},
{
"name": "render",
"children": [
{"name": "ArrowType", "value": 698},
{"name": "EdgeRenderer", "value": 5569},
{"name": "IRenderer", "value": 353},
{"name": "ShapeRenderer", "value": 2247}
]
},
{"name": "ScaleBinding", "value": 11275},
{"name": "Tree", "value": 7147},
{"name": "TreeBuilder", "value": 9930}
]
},
{
"name": "events",
"children": [
{"name": "DataEvent", "value": 2313},
{"name": "SelectionEvent", "value": 1880},
{"name": "TooltipEvent", "value": 1701},
{"name": "VisualizationEvent", "value": 1117}
]
},
{
"name": "legend",
"children": [
{"name": "Legend", "value": 20859},
{"name": "LegendItem", "value": 4614},
{"name": "LegendRange", "value": 10530}
]
},
{
"name": "operator",
"children": [
{
"name": "distortion",
"children": [
{"name": "BifocalDistortion", "value": 4461},
{"name": "Distortion", "value": 6314},
{"name": "FisheyeDistortion", "value": 3444}
]
},
{
"name": "encoder",
"children": [
{"name": "ColorEncoder", "value": 3179},
{"name": "Encoder", "value": 4060},
{"name": "PropertyEncoder", "value": 4138},
{"name": "ShapeEncoder", "value": 1690},
{"name": "SizeEncoder", "value": 1830}
]
},
{
"name": "filter",
"children": [
{"name": "FisheyeTreeFilter", "value": 5219},
{"name": "GraphDistanceFilter", "value": 3165},
{"name": "VisibilityFilter", "value": 3509}
]
},
{"name": "IOperator", "value": 1286},
{
"name": "label",
"children": [
{"name": "Labeler", "value": 9956},
{"name": "RadialLabeler", "value": 3899},
{"name": "StackedAreaLabeler", "value": 3202}
]
},
{
"name": "layout",
"children": [
{"name": "AxisLayout", "value": 6725},
{"name": "BundledEdgeRouter", "value": 3727},
{"name": "CircleLayout", "value": 9317},
{"name": "CirclePackingLayout", "value": 12003},
{"name": "DendrogramLayout", "value": 4853},
{"name": "ForceDirectedLayout", "value": 8411},
{"name": "IcicleTreeLayout", "value": 4864},
{"name": "IndentedTreeLayout", "value": 3174},
{"name": "Layout", "value": 7881},
{"name": "NodeLinkTreeLayout", "value": 12870},
{"name": "PieLayout", "value": 2728},
{"name": "RadialTreeLayout", "value": 12348},
{"name": "RandomLayout", "value": 870},
{"name": "StackedAreaLayout", "value": 9121},
{"name": "TreeMapLayout", "value": 9191}
]
},
{"name": "Operator", "value": 2490},
{"name": "OperatorList", "value": 5248},
{"name": "OperatorSequence", "value": 4190},
{"name": "OperatorSwitch", "value": 2581},
{"name": "SortOperator", "value": 2023}
]
},
{"name": "Visualization", "value": 16540}
]
}
]
}
我需要获取通向任意给定值的路径。例如，如果我搜索 MergeEdge，它将 return 以下路径：
flare -> analytics -> cluster -> MergeEdge
我需要以某种方式递归搜索嵌套的 JSON 和 找到导致感兴趣的值的路径 ，基于导致该值的 children。
我正在尝试使用这样的东西：
path = []
function get_path(obj, search_term, parent) {
if (obj.name === search_term) {
console.log(path)
} else {
Object.values(obj).forEach((val) => {
if (typeof val === "object") {
path.push(val)
get_path(val, search_term, obj)
}
});
}
}
或者，如果 D3 通过单击元素的数据本机提供此路径，那就太好了，但我还没有看到这一点。
要获取问题作者评论中提到的可观察笔记本的路径并突出显示它，您可以像这样使用 D3 的 node.path(target)：
function highlightPath(selector, root, targetNode, sourceNode) {
console.log(root);
//get the list of all descendants for the root node
let descendantsList = root.descendants();
console.log({descendantsList});
//find the target child node and source node in the descendantsList
let targetChildNode = descendantsList.filter(f => f.data.name == targetNode);
console.log({targetChildNode});
let sourceRootNode = descendantsList.filter(f => f.data.name == sourceNode);
console.log({sourceRootNode})
//get the path to target from the source
let pathToTarget = sourceRootNode[0].path(targetChildNode[0]);
console.log({pathToTarget}); //you can return this if you just want the list of nodes for the path or apply a highlight below
//highlight the nodes by filtering those which are present in the pathToTarget list.
let pathNodes = selector.selectAll("rect")
.filter(f => pathToTarget.findIndex(p => p.data.name === f.data.name) > -1)
.style("stroke","red");
}
这是工作 Observable Notebook。
我正在使用 well-known flare.json 文件：
{
"name": "flare",
"children": [
{
"name": "analytics",
"children": [
{
"name": "cluster",
"children": [
{"name": "AgglomerativeCluster", "value": 3938},
{"name": "CommunityStructure", "value": 3812},
{"name": "HierarchicalCluster", "value": 6714},
{"name": "MergeEdge", "value": 743}
]
},
{
"name": "graph",
"children": [
{"name": "BetweennessCentrality", "value": 3534},
{"name": "LinkDistance", "value": 5731},
{"name": "MaxFlowMinCut", "value": 7840},
{"name": "ShortestPaths", "value": 5914},
{"name": "SpanningTree", "value": 3416}
]
},
{
"name": "optimization",
"children": [
{"name": "AspectRatioBanker", "value": 7074}
]
}
]
},
{
"name": "animate",
"children": [
{"name": "Easing", "value": 17010},
{"name": "FunctionSequence", "value": 5842},
{
"name": "interpolate",
"children": [
{"name": "ArrayInterpolator", "value": 1983},
{"name": "ColorInterpolator", "value": 2047},
{"name": "DateInterpolator", "value": 1375},
{"name": "Interpolator", "value": 8746},
{"name": "MatrixInterpolator", "value": 2202},
{"name": "NumberInterpolator", "value": 1382},
{"name": "ObjectInterpolator", "value": 1629},
{"name": "PointInterpolator", "value": 1675},
{"name": "RectangleInterpolator", "value": 2042}
]
},
{"name": "ISchedulable", "value": 1041},
{"name": "Parallel", "value": 5176},
{"name": "Pause", "value": 449},
{"name": "Scheduler", "value": 5593},
{"name": "Sequence", "value": 5534},
{"name": "Transition", "value": 9201},
{"name": "Transitioner", "value": 19975},
{"name": "TransitionEvent", "value": 1116},
{"name": "Tween", "value": 6006}
]
},
{
"name": "data",
"children": [
{
"name": "converters",
"children": [
{"name": "Converters", "value": 721},
{"name": "DelimitedTextConverter", "value": 4294},
{"name": "GraphMLConverter", "value": 9800},
{"name": "IDataConverter", "value": 1314},
{"name": "JSONConverter", "value": 2220}
]
},
{"name": "DataField", "value": 1759},
{"name": "DataSchema", "value": 2165},
{"name": "DataSet", "value": 586},
{"name": "DataSource", "value": 3331},
{"name": "DataTable", "value": 772},
{"name": "DataUtil", "value": 3322}
]
},
{
"name": "display",
"children": [
{"name": "DirtySprite", "value": 8833},
{"name": "LineSprite", "value": 1732},
{"name": "RectSprite", "value": 3623},
{"name": "TextSprite", "value": 10066}
]
},
{
"name": "flex",
"children": [
{"name": "FlareVis", "value": 4116}
]
},
{
"name": "physics",
"children": [
{"name": "DragForce", "value": 1082},
{"name": "GravityForce", "value": 1336},
{"name": "IForce", "value": 319},
{"name": "NBodyForce", "value": 10498},
{"name": "Particle", "value": 2822},
{"name": "Simulation", "value": 9983},
{"name": "Spring", "value": 2213},
{"name": "SpringForce", "value": 1681}
]
},
{
"name": "query",
"children": [
{"name": "AggregateExpression", "value": 1616},
{"name": "And", "value": 1027},
{"name": "Arithmetic", "value": 3891},
{"name": "Average", "value": 891},
{"name": "BinaryExpression", "value": 2893},
{"name": "Comparison", "value": 5103},
{"name": "CompositeExpression", "value": 3677},
{"name": "Count", "value": 781},
{"name": "DateUtil", "value": 4141},
{"name": "Distinct", "value": 933},
{"name": "Expression", "value": 5130},
{"name": "ExpressionIterator", "value": 3617},
{"name": "Fn", "value": 3240},
{"name": "If", "value": 2732},
{"name": "IsA", "value": 2039},
{"name": "Literal", "value": 1214},
{"name": "Match", "value": 3748},
{"name": "Maximum", "value": 843},
{
"name": "methods",
"children": [
{"name": "add", "value": 593},
{"name": "and", "value": 330},
{"name": "average", "value": 287},
{"name": "count", "value": 277},
{"name": "distinct", "value": 292},
{"name": "div", "value": 595},
{"name": "eq", "value": 594},
{"name": "fn", "value": 460},
{"name": "gt", "value": 603},
{"name": "gte", "value": 625},
{"name": "iff", "value": 748},
{"name": "isa", "value": 461},
{"name": "lt", "value": 597},
{"name": "lte", "value": 619},
{"name": "max", "value": 283},
{"name": "min", "value": 283},
{"name": "mod", "value": 591},
{"name": "mul", "value": 603},
{"name": "neq", "value": 599},
{"name": "not", "value": 386},
{"name": "or", "value": 323},
{"name": "orderby", "value": 307},
{"name": "range", "value": 772},
{"name": "select", "value": 296},
{"name": "stddev", "value": 363},
{"name": "sub", "value": 600},
{"name": "sum", "value": 280},
{"name": "update", "value": 307},
{"name": "variance", "value": 335},
{"name": "where", "value": 299},
{"name": "xor", "value": 354},
{"name": "_", "value": 264}
]
},
{"name": "Minimum", "value": 843},
{"name": "Not", "value": 1554},
{"name": "Or", "value": 970},
{"name": "Query", "value": 13896},
{"name": "Range", "value": 1594},
{"name": "StringUtil", "value": 4130},
{"name": "Sum", "value": 791},
{"name": "Variable", "value": 1124},
{"name": "Variance", "value": 1876},
{"name": "Xor", "value": 1101}
]
},
{
"name": "scale",
"children": [
{"name": "IScaleMap", "value": 2105},
{"name": "LinearScale", "value": 1316},
{"name": "LogScale", "value": 3151},
{"name": "OrdinalScale", "value": 3770},
{"name": "QuantileScale", "value": 2435},
{"name": "QuantitativeScale", "value": 4839},
{"name": "RootScale", "value": 1756},
{"name": "Scale", "value": 4268},
{"name": "ScaleType", "value": 1821},
{"name": "TimeScale", "value": 5833}
]
},
{
"name": "util",
"children": [
{"name": "Arrays", "value": 8258},
{"name": "Colors", "value": 10001},
{"name": "Dates", "value": 8217},
{"name": "Displays", "value": 12555},
{"name": "Filter", "value": 2324},
{"name": "Geometry", "value": 10993},
{
"name": "heap",
"children": [
{"name": "FibonacciHeap", "value": 9354},
{"name": "HeapNode", "value": 1233}
]
},
{"name": "IEvaluable", "value": 335},
{"name": "IPredicate", "value": 383},
{"name": "IValueProxy", "value": 874},
{
"name": "math",
"children": [
{"name": "DenseMatrix", "value": 3165},
{"name": "IMatrix", "value": 2815},
{"name": "SparseMatrix", "value": 3366}
]
},
{"name": "Maths", "value": 17705},
{"name": "Orientation", "value": 1486},
{
"name": "palette",
"children": [
{"name": "ColorPalette", "value": 6367},
{"name": "Palette", "value": 1229},
{"name": "ShapePalette", "value": 2059},
{"name": "SizePalette", "value": 2291}
]
},
{"name": "Property", "value": 5559},
{"name": "Shapes", "value": 19118},
{"name": "Sort", "value": 6887},
{"name": "Stats", "value": 6557},
{"name": "Strings", "value": 22026}
]
},
{
"name": "vis",
"children": [
{
"name": "axis",
"children": [
{"name": "Axes", "value": 1302},
{"name": "Axis", "value": 24593},
{"name": "AxisGridLine", "value": 652},
{"name": "AxisLabel", "value": 636},
{"name": "CartesianAxes", "value": 6703}
]
},
{
"name": "controls",
"children": [
{"name": "AnchorControl", "value": 2138},
{"name": "ClickControl", "value": 3824},
{"name": "Control", "value": 1353},
{"name": "ControlList", "value": 4665},
{"name": "DragControl", "value": 2649},
{"name": "ExpandControl", "value": 2832},
{"name": "HoverControl", "value": 4896},
{"name": "IControl", "value": 763},
{"name": "PanZoomControl", "value": 5222},
{"name": "SelectionControl", "value": 7862},
{"name": "TooltipControl", "value": 8435}
]
},
{
"name": "data",
"children": [
{"name": "Data", "value": 20544},
{"name": "DataList", "value": 19788},
{"name": "DataSprite", "value": 10349},
{"name": "EdgeSprite", "value": 3301},
{"name": "NodeSprite", "value": 19382},
{
"name": "render",
"children": [
{"name": "ArrowType", "value": 698},
{"name": "EdgeRenderer", "value": 5569},
{"name": "IRenderer", "value": 353},
{"name": "ShapeRenderer", "value": 2247}
]
},
{"name": "ScaleBinding", "value": 11275},
{"name": "Tree", "value": 7147},
{"name": "TreeBuilder", "value": 9930}
]
},
{
"name": "events",
"children": [
{"name": "DataEvent", "value": 2313},
{"name": "SelectionEvent", "value": 1880},
{"name": "TooltipEvent", "value": 1701},
{"name": "VisualizationEvent", "value": 1117}
]
},
{
"name": "legend",
"children": [
{"name": "Legend", "value": 20859},
{"name": "LegendItem", "value": 4614},
{"name": "LegendRange", "value": 10530}
]
},
{
"name": "operator",
"children": [
{
"name": "distortion",
"children": [
{"name": "BifocalDistortion", "value": 4461},
{"name": "Distortion", "value": 6314},
{"name": "FisheyeDistortion", "value": 3444}
]
},
{
"name": "encoder",
"children": [
{"name": "ColorEncoder", "value": 3179},
{"name": "Encoder", "value": 4060},
{"name": "PropertyEncoder", "value": 4138},
{"name": "ShapeEncoder", "value": 1690},
{"name": "SizeEncoder", "value": 1830}
]
},
{
"name": "filter",
"children": [
{"name": "FisheyeTreeFilter", "value": 5219},
{"name": "GraphDistanceFilter", "value": 3165},
{"name": "VisibilityFilter", "value": 3509}
]
},
{"name": "IOperator", "value": 1286},
{
"name": "label",
"children": [
{"name": "Labeler", "value": 9956},
{"name": "RadialLabeler", "value": 3899},
{"name": "StackedAreaLabeler", "value": 3202}
]
},
{
"name": "layout",
"children": [
{"name": "AxisLayout", "value": 6725},
{"name": "BundledEdgeRouter", "value": 3727},
{"name": "CircleLayout", "value": 9317},
{"name": "CirclePackingLayout", "value": 12003},
{"name": "DendrogramLayout", "value": 4853},
{"name": "ForceDirectedLayout", "value": 8411},
{"name": "IcicleTreeLayout", "value": 4864},
{"name": "IndentedTreeLayout", "value": 3174},
{"name": "Layout", "value": 7881},
{"name": "NodeLinkTreeLayout", "value": 12870},
{"name": "PieLayout", "value": 2728},
{"name": "RadialTreeLayout", "value": 12348},
{"name": "RandomLayout", "value": 870},
{"name": "StackedAreaLayout", "value": 9121},
{"name": "TreeMapLayout", "value": 9191}
]
},
{"name": "Operator", "value": 2490},
{"name": "OperatorList", "value": 5248},
{"name": "OperatorSequence", "value": 4190},
{"name": "OperatorSwitch", "value": 2581},
{"name": "SortOperator", "value": 2023}
]
},
{"name": "Visualization", "value": 16540}
]
}
]
}
我需要获取通向任意给定值的路径。例如，如果我搜索 MergeEdge，它将 return 以下路径：
flare -> analytics -> cluster -> MergeEdge
我需要以某种方式递归搜索嵌套的 JSON 和 找到导致感兴趣的值的路径 ，基于导致该值的 children。
我正在尝试使用这样的东西：
path = []
function get_path(obj, search_term, parent) {
if (obj.name === search_term) {
console.log(path)
} else {
Object.values(obj).forEach((val) => {
if (typeof val === "object") {
path.push(val)
get_path(val, search_term, obj)
}
});
}
}
或者，如果 D3 通过单击元素的数据本机提供此路径，那就太好了，但我还没有看到这一点。
要获取问题作者评论中提到的可观察笔记本的路径并突出显示它，您可以像这样使用 D3 的 node.path(target)：
function highlightPath(selector, root, targetNode, sourceNode) {
console.log(root);
//get the list of all descendants for the root node
let descendantsList = root.descendants();
console.log({descendantsList});
//find the target child node and source node in the descendantsList
let targetChildNode = descendantsList.filter(f => f.data.name == targetNode);
console.log({targetChildNode});
let sourceRootNode = descendantsList.filter(f => f.data.name == sourceNode);
console.log({sourceRootNode})
//get the path to target from the source
let pathToTarget = sourceRootNode[0].path(targetChildNode[0]);
console.log({pathToTarget}); //you can return this if you just want the list of nodes for the path or apply a highlight below
//highlight the nodes by filtering those which are present in the pathToTarget list.
let pathNodes = selector.selectAll("rect")
.filter(f => pathToTarget.findIndex(p => p.data.name === f.data.name) > -1)
.style("stroke","red");
}
这是工作 Observable Notebook。