add color scale to logs vega map

Author: nreese

src/plugins/home/server/services/sample_data/data_sets/logs/saved_objects.ts

@@ -55,7 +55,7 @@ export const getSavedObjects = (): SavedObject[] => [
         defaultMessage: '[Logs] Visitors Map',
       }),
       visState:
-        '{"title":"[Logs] Visitors Map","type":"vega","aggs":[],"params":{"spec":"{\\n  $schema: https://vega.github.io/schema/vega/v5.json\\n  config: {\\n    kibana: {type: \\"map\\", latitude: 30, longitude: -120, zoom: 3}\\n  }\\n  data: [\\n    {\\n      name: table\\n      url: {\\n        index: kibana_sample_data_logs\\n        %context%: true\\n        %timefield%: timestamp\\n        body: {\\n          size: 0\\n          aggs: {\\n            gridSplit: {\\n              geotile_grid: {field: \\"geo.coordinates\\", precision: 5, size: 10000}\\n              aggs: {\\n                gridCentroid: {\\n                  geo_centroid: {\\n                    field: \\"geo.coordinates\\"\\n                  }\\n                }\\n              }\\n            }\\n          }\\n        }\\n      }\\n      format: {property: \\"aggregations.gridSplit.buckets\\"}\\n      transform: [\\n        {\\n          type: geopoint\\n          projection: projection\\n          fields: [\\n            gridCentroid.location.lon\\n            gridCentroid.location.lat\\n          ]\\n        }\\n      ]\\n    }\\n  ]\\n  scales: [\\n    {\\n      name: gridSize\\n      type: linear\\n      domain: {data: \\"table\\", field: \\"doc_count\\"}\\n      range: [\\n        50\\n        1000\\n      ]\\n    }\\n  ]\\n  marks: [\\n    {\\n      name: gridMarker\\n      type: symbol\\n      from: {data: \\"table\\"}\\n      encode: {\\n        update: {\\n          size: {scale: \\"gridSize\\", field: \\"doc_count\\"}\\n          xc: {signal: \\"datum.x\\"}\\n          yc: {signal: \\"datum.y\\"}\\n          tooltip: {\\n            signal: \\"{flights: datum.doc_count}\\"\\n          }\\n        }\\n      }\\n    }\\n  ]\\n}"}}',
+        '{"title":"[Logs] Visitors Map","type":"vega","aggs":[],"params":{"spec":"{\\n  $schema: https://vega.github.io/schema/vega/v5.json\\n  config: {\\n    kibana: {type: \\"map\\", latitude: 30, longitude: -120, zoom: 3}\\n  }\\n  data: [\\n    {\\n      name: table\\n      url: {\\n        index: kibana_sample_data_logs\\n        %context%: true\\n        %timefield%: timestamp\\n        body: {\\n          size: 0\\n          aggs: {\\n            gridSplit: {\\n              geotile_grid: {field: \\"geo.coordinates\\", precision: 5, size: 10000}\\n              aggs: {\\n                gridCentroid: {\\n                  geo_centroid: {\\n                    field: \\"geo.coordinates\\"\\n                  }\\n                }\\n              }\\n            }\\n          }\\n        }\\n      }\\n      format: {property: \\"aggregations.gridSplit.buckets\\"}\\n      transform: [\\n        {\\n          type: geopoint\\n          projection: projection\\n          fields: [\\n            gridCentroid.location.lon\\n            gridCentroid.location.lat\\n          ]\\n        }\\n      ]\\n    }\\n  ]\\n  scales: [\\n    {\\n      name: gridSize\\n      type: linear\\n      domain: {data: \\"table\\", field: \\"doc_count\\"}\\n      range: [\\n        50\\n        1000\\n      ]\\n    }\\n    {\\n      name: bubbleColor\\n      type: linear\\n      domain: {\\n        data: table\\n        field: doc_count\\n      }\\n      range: [\\"rgb(249, 234, 197)\\",\\"rgb(243, 200, 154)\\",\\"rgb(235, 166, 114)\\", \\"rgb(231, 102, 76)\\"]\\n    }\\n  ]\\n  marks: [\\n    {\\n      name: gridMarker\\n      type: symbol\\n      from: {data: \\"table\\"}\\n      encode: {\\n        update: {\\n          fill: {\\n            scale: bubbleColor\\n            field: doc_count\\n          }\\n          size: {scale: \\"gridSize\\", field: \\"doc_count\\"}\\n          xc: {signal: \\"datum.x\\"}\\n          yc: {signal: \\"datum.y\\"}\\n          tooltip: {\\n            signal: \\"{flights: datum.doc_count}\\"\\n          }\\n        }\\n      }\\n    }\\n  ]\\n}"}}',
       uiStateJSON: '{}',
       description: '',
       version: 1,