wordCloud.json

{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "title": "Word Cloud",
  "name": "Word Cloud",
  "id": "2",
  "width": 800,
  "height": 400,
  "padding": 0,
  "data": [
    {
      "name": "table",
      "url": "pubblicazioni1.json",
      "transform": [
        {
          "type":"filter", "expr": "datum.abstract != null"
        },
        {
          "type": "countpattern",
          "field": "abstract",
          "case": "upper",
          "pattern": "[A-Z]{3,}",
          "stopwords": "(i|me|my|myself|we|us|our|ours|ourselves|you|your|yours|yourself|yourselves|he|him|his|himself|she|her|hers|herself|it|its|itself|they|them|their|theirs|themselves|what|which|who|whom|whose|this|that|these|those|am|is|are|was|were|be|been|being|have|has|had|having|do|does|did|doing|will|would|should|can|could|ought|i'm|you're|he's|she's|it's|we're|they're|i've|you've|we've|they've|i'd|you'd|he'd|she'd|we'd|they'd|i'll|you'll|he'll|she'll|we'll|they'll|isn't|aren't|wasn't|weren't|hasn't|haven't|hadn't|doesn't|don't|didn't|won't|wouldn't|shan't|shouldn't|can't|cannot|couldn't|mustn't|let's|that's|who's|what's|here's|there's|when's|where's|why's|how's|a|an|the|and|but|if|or|because|as|until|while|of|at|by|for|with|about|against|between|into|through|during|before|after|above|below|to|from|up|upon|down|in|out|on|off|over|under|again|further|then|once|here|there|when|where|why|how|all|any|both|each|few|more|most|other|some|such|no|nor|not|only|own|same|so|than|too|very|say|says|said|shall|due|one|new|like|per|die|every|yet|tend|may|one|six|far|clear|fill|get|also|aim|using|etc|il|la|lo|i|gli|e|ed|di|dalla|dalle|dei|cui|una|uno|nel|allo|alla|sul|che|con|col|delle|big|asti|uso|non|ne|III|thus|users|ecc)"
        },
        {
          "type": "formula",
          "as": "angle",
          "expr": "[-45, 0, 45][~~(random() * 3)]"
        },
        {
          "type": "formula",
          "as": "weight",
          "expr": "if(datum.text=='TORINO', 600, 300)"
        }
      ]
    }
  ],
  "scales": [
    {
      "name": "color",
      "type": "ordinal",
      "domain": {
        "data": "table",
        "field": "text"
      },
      "range": [ "#ffd866", "#9e0041", "#013378"]
    }
  ],
  "marks": [
    {
      "type": "text",
      "from": {
        "data": "table"
      },
      "encode": {
        "enter": {
          "text": {
            "field": "text"
          },
          "align": {
            "value": "center"
          },
          "baseline": {
            "value": "alphabetic"
          },
          "fill": {
            "scale": "color",
            "field": "text"
          }
        },
        "update": {
          "fontWeight":{"value":"normal"}
        },
        "hover":{
          "fontWeight":{"value":"bolder"}
        }
      },
      "transform": [
        {
          "type": "wordcloud",
          "size": [
            800,
            400
          ],
          "text": {
            "field": "text"
          },
          "rotate": {
            "field": "datum.angle"
          },
          "font": "Helvetica Neue, Arial",
          "fontSize": {
            "field": "datum.count"
          },
          "fontWeight": {
            "field": "datum.weight"
          },
          "fontSizeRange": [
            30,
            56
          ],
          "padding": 2
        }
      ]
    }
  ]
}