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Working With Coordinate Map
  • 时间:2024-11-05

Kibana - Working With Coordinate Map


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Coordinate maps in Kibana will show you the geographic area and mark the area with circles based on aggregation you specify.

Create Index for Coordinate Map

The Bucket aggregation used for coordinate map is geohash aggregation. For this type of aggregation, your index which you are going to use should have a field of type geo point. The geo point is combination of latitude and longitude.

We will create an index using Kibana dev tools and add bulk data to it. We will add mapping and add the geo_point type that we need.

The data that we are going to use is shown here −

{"index":{"_id":1}}
{"location": "2.089330000000046,41.47367000000008", "city": "SantCugat"}
{"index":{"_id":2}}
{"location": "2.2947825000000677,41.601800991000076", "city": "Granollers"}
{"index":{"_id":3}}
{"location": "2.1105957495300474,41.5496295760424", "city": "Sabadell"}
{"index":{"_id":4}}
{"location": "2.132605678083895,41.5370461908878", "city": "Barbera"}
{"index":{"_id":5}}
{"location": "2.151270020052683,41.497779918345415", "city": "Cerdanyola"}
{"index":{"_id":6}}
{"location": "2.1364609496220606,41.371303520399344", "city": "Barcelona"}
{"index":{"_id":7}}
{"location": "2.0819450306711165,41.385491966414705", "city": "Sant Just Desvern"}
{"index":{"_id":8}}
{"location": "2.00532082278266,41.542294286427385", "city": "Rubi"}
{"index":{"_id":9}}
{"location": "1.9560805366930398,41.56142635214226", "city": "Viladecavalls"}
{"index":{"_id":10}}
{"location": "2.09205348251486,41.39327140161001", "city": "Esplugas de Llobregat"}

Now, run the following commands in Kibana Dev Tools as shown below −

PUT /cities
{
   "mappings": {
      "_doc": {
         "properties": {
            "location": {
               "type": "geo_point"
            }
         }
      }
   }
}

POST /cities/_city/_bulk?refresh
{"index":{"_id":1}}
{"location": "2.089330000000046,41.47367000000008", "city": "SantCugat"}
{"index":{"_id":2}}
{"location": "2.2947825000000677,41.601800991000076", "city": "Granollers"}
{"index":{"_id":3}}
{"location": "2.1105957495300474,41.5496295760424", "city": "Sabadell"}
{"index":{"_id":4}}
{"location": "2.132605678083895,41.5370461908878", "city": "Barbera"}
{"index":{"_id":5}}
{"location": "2.151270020052683,41.497779918345415", "city": "Cerdanyola"}
{"index":{"_id":6}}
{"location": "2.1364609496220606,41.371303520399344", "city": "Barcelona"}
{"index":{"_id":7}}
{"location": "2.0819450306711165,41.385491966414705", "city": "Sant Just Desvern"}
{"index":{"_id":8}}
{"location": "2.00532082278266,41.542294286427385", "city": "Rubi"}
{"index":{"_id":9}}
{"location": "1.9560805366930398,41.56142635214226", "city": "Viladecavalls"}
{"index":{"_id":10}}
{"location": "2.09205348251486,41.3s9327140161001", "city": "Esplugas de Llobregat"}

Now, run the above commands in Kibana dev tools −

Kibana dev tools

The above will create index name cities of type _doc and the field location is of type geo_point.

Now let’s add data to the index: cities −

Kibana index name

We are done creating index name cites with data. Now let us Create index pattern for cities using Management tab.

Kibana index pattern

The details of fields inside cities index are shown here −

Kibana index details

We can see that location is of type geo_point. We can now use it to create visuapzation.

Getting Started with Coordinate Maps

Go to Visuapzation and select coordinate maps.

Coordinate Maps

Select the index pattern cities and configure the Aggregation metric and bucket as shown below −

Configure Aggregation metric

If you cpck on Analyze button, you can see the following screen −

Analyze button

Based on the longitude and latitude, the circles are plotted on the map as shown above.

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