geraldo/.block

## .block
license: mit

## README.md

      
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              README.md
            
          
    Built with blockbuilder.org
see https://stackoverflow.com/questions/49534470/d3-js-v5-promise-all-replaced-d3-queue
forked from geraldo's block: geojson
forked from geraldo's block: openlayers and d3js geojson

  
## agriculture.geojson

      
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              agriculture.geojson
            
          
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## index.html
<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.5/ol.css" />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/4.6.5/ol.js"></script>
  <script src="https://d3js.org/d3.v5.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    #map, svg {
      position: absolute;
      top: 0px;
      bottom: 0px;
      left: 0px;
      right: 0px;
  }
  </style>
</head>

<body>
  <div id="map"></div>
  <script>
    /* ol */
    _agricStroke = new ol.style.Stroke({
      color : 'rgba(255, 201, 41, 1.0)',
      width : 1
    });

    _agricFill = new ol.style.Fill({
      color: 'rgba(255, 201, 41, 1.0)'
    });

    agricStyle = new ol.style.Style({
      stroke : _agricStroke,
      fill : _agricFill
    });

    var agric = new ol.layer.Vector({
      renderMode: 'image',
      style: agricStyle,
      source: new ol.source.Vector({
        url: 'agriculture.geojson',
        format: new ol.format.GeoJSON()
      })
    })

    var map = new ol.Map({
      target: "map",
      layers: [
        new ol.layer.Tile({
          source: new ol.source.OSM()
        }),
        agric
      ],
      view: new ol.View({
        center: [2620719.951785553,4954495.299388555],
        zoom: 9.3
      }),
      controls: ol.control.defaults({
        attributionOptions: ({
          collapsible: true
        })
      }).extend([
        new ol.control.OverviewMap(),
      ]),
    });

    /* d3js */
		var width = 800,
    		height = 800;
    var svg = d3.select("#map")
    	.append("svg")
      .attr("width", width)
      .attr("height", height);

    var files = ["mines.json", "mines_centroid.json"];

    var promises = [];

    files.forEach(function (url) {
        promises.push(d3.json(url));
    });

    Promise.all(promises).then(function (val) {
      drawMap(val[0], val[1]);
    });

    var projection = d3.geoMercator();
		var geoPath = d3.geoPath()
    	.projection(projection);

    var radius = d3.scaleLog();

    function drawMap(mines, centroid) {
        projection.center([22.9696994071445, 40.8135651828386]);
        projection.fitSize([width, height], mines);
        svg.append("g")
            .selectAll("path")
            .data(mines.features)
            .enter()
            .append("path")
            .attr("d", geoPath)
            .attr("stroke", "blue")
            .attr("fill", "white")
            .attr("class", "mines");

        addCentroid(centroid);
    }

    function addCentroid(centroid) {
      console.log(centroid);

      var points = svg.selectAll("circle")
          .data(centroid.features, function (d) {
              return d;
          })
          .enter().append("circle")
          .attr('r', function (d) {
              return radius(d.properties.Scale) * 1.5
          })
          .attr('cx', function (d) {
              return projection(d.geometry.coordinates)[0]
          })
          .attr('cy', function (d) {
              return projection(d.geometry.coordinates)[1]
          })
          .attr("class", "centroid")
          .attr("id", function (d) {
              return d.properties.ID
          })
    }
  </script>
</body>

## mines.json

      
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              mines.json
            
          
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## mines_centroid.json

      
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              mines_centroid.json
            
          
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	<!DOCTYPE html>
	<head>
	<meta charset="utf-8">
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.5/ol.css" />
	<script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/4.6.5/ol.js"></script>
	<script src="https://d3js.org/d3.v5.min.js"></script>
	<style>
	body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
	#map, svg {
	position: absolute;
	top: 0px;
	bottom: 0px;
	left: 0px;
	right: 0px;
	}
	</style>
	</head>

	<body>
	<div id="map"></div>
	<script>
	/* ol */
	_agricStroke = new ol.style.Stroke({
	color : 'rgba(255, 201, 41, 1.0)',
	width : 1
	});

	_agricFill = new ol.style.Fill({
	color: 'rgba(255, 201, 41, 1.0)'
	});

	agricStyle = new ol.style.Style({
	stroke : _agricStroke,
	fill : _agricFill
	});

	var agric = new ol.layer.Vector({
	renderMode: 'image',
	style: agricStyle,
	source: new ol.source.Vector({
	url: 'agriculture.geojson',
	format: new ol.format.GeoJSON()
	})
	})

	var map = new ol.Map({
	target: "map",
	layers: [
	new ol.layer.Tile({
	source: new ol.source.OSM()
	}),
	agric
	],
	view: new ol.View({
	center: [2620719.951785553,4954495.299388555],
	zoom: 9.3
	}),
	controls: ol.control.defaults({
	attributionOptions: ({
	collapsible: true
	})
	}).extend([
	new ol.control.OverviewMap(),
	]),
	});

	/* d3js */
	var width = 800,
	height = 800;
	var svg = d3.select("#map")
	.append("svg")
	.attr("width", width)
	.attr("height", height);

	var files = ["mines.json", "mines_centroid.json"];

	var promises = [];

	files.forEach(function (url) {
	promises.push(d3.json(url));
	});

	Promise.all(promises).then(function (val) {
	drawMap(val[0], val[1]);
	});

	var projection = d3.geoMercator();
	var geoPath = d3.geoPath()
	.projection(projection);

	var radius = d3.scaleLog();

	function drawMap(mines, centroid) {
	projection.center([22.9696994071445, 40.8135651828386]);
	projection.fitSize([width, height], mines);
	svg.append("g")
	.selectAll("path")
	.data(mines.features)
	.enter()
	.append("path")
	.attr("d", geoPath)
	.attr("stroke", "blue")
	.attr("fill", "white")
	.attr("class", "mines");

	addCentroid(centroid);
	}

	function addCentroid(centroid) {
	console.log(centroid);

	var points = svg.selectAll("circle")
	.data(centroid.features, function (d) {
	return d;
	})
	.enter().append("circle")
	.attr('r', function (d) {
	return radius(d.properties.Scale) * 1.5
	})
	.attr('cx', function (d) {
	return projection(d.geometry.coordinates)[0]
	})
	.attr('cy', function (d) {
	return projection(d.geometry.coordinates)[1]
	})
	.attr("class", "centroid")
	.attr("id", function (d) {
	return d.properties.ID
	})
	}
	</script>
	</body>