Deneb Vega Lite Map 不顯示

Question

I am using the deneb visualisation in PowerBI and I am trying to create a map of Australia, there aren't any errors coming up with the below json code but my map is not displaying. 有誰知道我做錯了什么？

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "width": 500,
  "height": 300,
  "layer": [
    {
      "transform": [
        {"filter": "isValid(datum.id)"},
        {
          "lookup": "id",
          "from": {
            "data": {
              "url": "https://raw.githubusercontent.com/cartdeco/Australia-json-data/master/aus25fgd_r.topojson",
              "format": {
                "type": "topojson"
              }
            },
            "key": "id"
          },
          "as": "geo"
        }
      ],
      "projection": {
        "type": "mercator"
      },
      "mark": {
        "type": "geoshape",
        "fill": "lightgray",
        "stroke": "white"
      }
    },
    {
      "data": {"name": "Electorate"},
      "projection": {
        "type": "mercator"
      },
      "mark": "circle",
      "encoding": {
        "longitude": {
          "field": "Long",
          "type": "quantitative"
        },
        "latitude": {
          "field": "Lat",
          "type": "quantitative"
        },
        "size": {"value": 10},
        "color": {"value": "steelblue"}
      }
    }
  ]
}

這是我使用的數據https://www.matthewproctor.com/australian_postcodes

任何幫助，將不勝感激。

干杯，

克里斯

Answer 1

看起來您正在嘗試從遠程 URL 加載 map 層。 因為 AppSource 中的 Deneb 是經過認證的，所以不允許從外部 URL 加載數據。 您可以使用獨立版本解決此問題，該版本可從 GitHub 存儲庫下載 - 此處的文檔