vega-editor.json

{
    "$schema": "https://vega.github.io/schema/vega/v5.json",
    "description": "An example of a radial layout for a node-link diagram of hierarchical data.",
    "width": 2048,
    "height": 2048,
    "padding": 24,
    "autosize": "none",
    "background": "#ffffff",
  
  
    "signals": [
      {
        "name": "labels", "value": true,
        "bind": {"input": "checkbox"}
      },
      {
        "name": "radius", "value": 770,
        "bind": {"input": "range", "min": 20, "max": 1024}
      },
      {
        "name": "extent", "value": 360,
        "bind": {"input": "range", "min": 0, "max": 360, "step": 1}
      },
      {
        "name": "rotate", "value": 0,
        "bind": {"input": "range", "min": 0, "max": 360, "step": 1}
      },
      {
        "name": "layout", "value": "tidy",
        "bind": {"input": "radio", "options": ["tidy", "cluster"]}
      },
      {
        "name": "links", "value": "line",
        "bind": {
          "input": "select",
          "options": ["line", "curve", "diagonal", "orthogonal"]
        }
      },
      { "name": "originX", "update": "width / 2" },
      { "name": "originY", "update": "height / 2" }
    ],
  
    "data": [
      {
        "name": "tree",
        "url": "https://raw.githubusercontent.com/aokdev06/testjson/refs/heads/main/tree3.json",
        "transform": [
          {
            "type": "stratify",
            "key": "id",
            "parentKey": "parent"
          },
          {
            "type": "tree",
            "method": {"signal": "layout"},
            "size": [1, {"signal": "radius"}],
            "as": ["alpha", "radius", "depth", "children"]
          },
          {
            "type": "formula",
            "expr": "(rotate + extent * datum.alpha + 270) % 360",
            "as":   "angle"
          },
          {
            "type": "formula",
            "expr": "PI * datum.angle / 180",
            "as":   "radians"
          },
          {
            "type": "formula",
            "expr": "inrange(datum.angle, [90, 270])",
            "as":   "leftside"
          },
          {
            "type": "formula",
            "expr": "originX + datum.radius * cos(datum.radians)",
            "as":   "x"
          },
          {
            "type": "formula",
            "expr": "originY + datum.radius * sin(datum.radians)",
            "as":   "y"
          }
        ]
      },
      {
        "name": "links",
        "source": "tree",
        "transform": [
          { "type": "treelinks" },
          {
            "type": "linkpath",
            "shape": {"signal": "links"}, "orient": "radial",
            "sourceX": "source.radians", "sourceY": "source.radius",
            "targetX": "target.radians", "targetY": "target.radius"
          }
        ]
      }
    ],
  
    "scales": [
      {
        "name": "color",
        "type": "linear",
        "range": {"scheme": "magma"},
        "domain": {"data": "tree", "field": "depth"},
        "zero": true
      }
    ],
  
    "marks": [
      {
        "type": "path",
        "from": {"data": "links"},
        "encode": {
          "update": {
            "x": {"signal": "originX"},
            "y": {"signal": "originY"},
            "path": {"field": "path"},
            "stroke": {"value": "#ccc"}
          }
        }
      },
      {
        "type": "symbol",
        "from": {"data": "tree"},
        "encode": {
          "enter": {
            "size": {"value": 100},
            "stroke": {"value": "#fff"}
          },
          "update": {
            "x": {"field": "x"},
            "y": {"field": "y"},
            "fill": {"scale": "color", "field": "depth"}
          }
        }
      },
      {
        "type": "text",
        "from": {"data": "tree"},
        "encode": {
          "enter": {
            "text": {"field": "name"},
            "fontSize": {"value": 12},
            "baseline": {"value": "middle"}
          },
          "update": {
            "x": {"field": "x"},
            "y": {"field": "y"},
            "dx": {"signal": "(datum.leftside ? -1 : 1) * 6"},
            "angle": {"signal": "datum.leftside ? datum.angle - 180 : datum.angle"},
            "align": {"signal": "datum.leftside ? 'right' : 'left'"},
            "opacity": {"signal": "labels ? 1 : 0"}
          }
        }
      }
    ]
  }