从这张 vega / vega-lite 世界地图中删除南极洲

Question

我正在尝试从这张 Vega-lite 世界地图中删除南极洲。 vega-editor here 中的示例。想知道如何获得特定数据 w.r.t 国家或大陆

Answer 1

使用过滤器变换：

 {
  "name": "world", // <---- Your map
  "url": "https://vega.github.io/editor/data/world-110m.json",
  "format": {
    "type": "topojson",
    "feature": "countries"
  },
  "transform": [ 
    {      
      "type": "filter",
      "expr":"datum.id!=10" //<---- Antarctica has id 10
    }
  ]
},

See on your example