< Extension:Graph < Demo < Sparql


<graph mode=interactive>{{#tag:syntaxhighlight| {

 "version": 2,
 "width": 500,
 "height": 260,
 "padding": 12,
 "background": "#edf1f7",
 "data": [
   {
     "name": "map",
     "url": "geoshape:///?idcolumn=country&query=SELECT%20%3Fcountry%20%3FcountryLabel%20WHERE%20%7B%0A%20%20%7B%0A%20%20%20%20%20SELECT%20DISTINCT%20%3Fcountry%20%20WHERE%20%7B%0A%20%20%20%20%20%20%20%3Fplace%20wdt%3AP17%20%3Fcountry%20.%0A%20%20%20%20%20%7D%0A%20%20%7D%0A%20%20%3Fcountry%20wdt%3AP299%20%3Fcode%20.%0A%0A%20%20SERVICE%20wikibase%3Alabel%20%7B%20bd%3AserviceParam%20wikibase%3Alanguage%20%22en%22%20%7D%0A%7D%0A",
     "format": {"type": "topojson","feature": "data"},
     "transform": [
       {
         "type": "geopath",
         "value": "data",
         "scale": 80,
         "center": [-180,125],
         "translate": [0,0],
         "projection": "equirectangular"
       }
     ]
   },
   {
     "name": "points",
     "url": "wikidatasparql:///?query=PREFIX%20wd%3A%20%3Chttp%3A%2F%2Fwww.wikidata.org%2Fentity%2F%3E%0APREFIX%20wdt%3A%20%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E%0APREFIX%20wikibase%3A%20%3Chttp%3A%2F%2Fwikiba.se%2Fontology%23%3E%0A%0ASELECT%20DISTINCT%20%3FcityLabel%20%3Fpopulation%20%3Fgps%0AWHERE%20%0A%7B%0A%20%20%3Fcity%20wdt%3AP31%2Fwdt%3AP279*%20wd%3AQ515%20.%0A%20%20%3Fcity%20wdt%3AP1082%20%3Fpopulation%20.%0A%20%20%3Fcity%20wdt%3AP625%20%3Fgps%20.%0A%20%20SERVICE%20wikibase%3Alabel%20%7B%0A%20%20%20%20bd%3AserviceParam%20wikibase%3Alanguage%20%22en%22%20.%0A%20%20%7D%0A%7D%0AORDER%20BY%20DESC(%3Fpopulation)%20LIMIT%2015",
     "format": {
       "type": "json"
     },
     "transform": [
       {"type": "sort", "by": "-population"},
       {
         "type": "geo",
         "projection": "equirectangular",
         "scale": 80,
         "center": [-180,125],
         "translate": [0,0],
         "lon": "gps[0]",
         "lat": "gps[1]"
       }
     ]
   }
 ],
 "signals": [
   {
     "name": "mouseoverSignal",
     "init": null,
     "streams": [
       {  
         "type": "@circle:mouseover",
         "expr": "eventItem().datum"
       },
       {
         "type": "@circle:mouseout",
         "expr": null
       }
     ]
   }
 ],
 "scales": [
   {
     "name": "size",
     "type": "linear",
     "domain": {"data": "points", "field": "population"},
     "range": [10, 1000]
   }
 ],
 "marks": [
   {
     "type": "text",
     "properties": {
       "enter": {
         "text": {"value": "Largest cities"},
         "x": {"value": 0},
         "y": {"value": 25},
         "fontSize": {"value": 32},
         "fontWeight": {"value": "bold"},
         "fill": {"value": "steelblue"}
       }
     }
   },
   {
     "name": "map",
     "type": "path",
     "from": {"data": "map"},
     "properties": {
       "enter": {
         "fill": {"value": "grey"},
         "path": {"field": "layout_path"}
       }
     }
   },
   {
     "name": "circle",
     "type": "symbol",
     "from": {"data": "points"},
     "properties": {
       "enter": {
         "size": {"scale": "size", "field": "population"},
         "fill": {"value": "steelblue"},
         "fillOpacity": {"value": 0.8},
         "stroke": {"value": "white"},
         "strokeWidth": {"value": 1.5},
         "x": {"field": "layout_x"},
         "y": {"field": "layout_y"}
       }
     }
   },
   {
     "type": "text",
     "properties": {
       "enter": {
         "x": {"value": 500},
         "y": {"value": 10},
         "align": {"value": "right"},
         "fontSize": {"value": 17},
         "fill": {"value": "black"}
       },
       "update": {
         "text": [
           {
             "test": "mouseoverSignal !== null",
             "template": "\u007b{mouseoverSignal.cityLabel}\u007d \u007b{mouseoverSignal.population|number:'.2s'}\u007d"
           },
           { "value": "" } 
         ]
       }
     }
   }
 ]

} |lang=javascript}}</graph>

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