CZ 2013: Greens+Pirates+Change

<!DOCTYPE html>
<html>
  <head>
    <title>Zelení + Piráti + Změna 2013</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no"/>
    <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootswatch/3.2.0/journal/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.min.js"></script>
    <script src="https://d3js.org/d3.v3.min.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
    <script src="d3.tip.js"></script>

.towns {
      width: 100000px;
      height: 100000px;
    }
	  /* this is because of Bootstrap - very important! */
		svg:not(:root) {
			overflow: visible;
		}

/* D3 tips */
    .d3-tip {
      line-height: 1;
      /*font-weight: bold;*/
      padding: 12px;
      background: rgba(0, 0, 0, 0.8);
      color: #fff;
      border-radius: 2px;
    }
    .d3-tip small {
        font-size: 0.5em;
    }
    /* Style northward tooltips differently */
    .d3-tip.n:after {
      margin: -1px 0 0 0;
      top: 100%;
      left: 0;
    }
    .stronger {
      color: yellow;
      font-weight: bold;
    }
    /*overwrite bootstrap*/
        .navbar {
          margin-bottom: 0;
        }
    </style>
  </head>
  <body>
    <div class="navbar navbar-default" role="navigation">
      <div class="container">
        <div class="navbar-header">
          <a class="navbar-brand">Zelení + Piráti + Změna 2013</a>
        </div>
      </div>
    </div>
    <div class="btn-group" role="group" aria-label="kraje">
        <a class="btn btn-primary regions" href="#" role="button" value="Jihočeský kraj">Jihočeský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Jihomoravský kraj">Jihomoravský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Karlovarský kraj">Karlovarský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Královéhradecký kraj">Královéhradecký</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Liberecký kraj">Liberecký</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Moravskoslezský kraj">Moravskoslezský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Olomoucký kraj">Olomoucký</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Pardubický kraj">Pardubický</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Plzeňský kraj">Plzeňský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Středočeský kraj">Středočeský</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Ústecký kraj">Ústecký</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Kraj Vysočina">Vysočina</a>
        <a class="btn btn-primary regions" href="#" role="button" value="Zlínský kraj">Zlínský</a>
    </div>

<div style="position:fixed;top:125px;z-index:1000;">
		<div class="alert alert-info" style="float:left;" id="legend">
		<h3>Zelení+Piráti+Změna</h3>
		    <svg height="20" width="20"><circle cx="10" cy="10" r="10" fill="blue"></svg> 10 %<br/>
		    <svg height="20" width="20"><circle cx="10" cy="10" r="10" fill="green"></svg> 6.4 %<br/>
		    <svg height="20" width="20"><circle cx="10" cy="10" r="10" fill="yellow"></svg> 5 %<br/>
		    <svg height="20" width="20"><circle cx="10" cy="10" r="10" fill="red"></svg> 0 %<br/>
		</div>
    </div>
    <div id="map"></div>
<script type="text/javascript">
// Create the map
  var map = L.map('map', {'zoomControl':false}).setView([50,15], 8);
  // add an OpenStreetMap tile layer
  // also see https://wiki.openstreetmap.org/wiki/Tiles
  L.tileLayer('https://{s}.www.toolserver.org/tiles/bw-mapnik/{z}/{x}/{y}.png', {
    attribution: 'CC-BY Michal Škop | &copy; <a href="https://osm.org/copyright">OpenStreetMap</a> contributors | <a href="https://ovolby.cz">ovolby.cz</a>'
  }).addTo(map);
  L.control.zoom({"position":"topright"}).addTo(map);

//svg
  var svg = d3.select(map.getPanes().overlayPane).append("svg").attr("class", "towns");

//scale
  var radiusScale = d3.scale.sqrt().domain([0, 586509]).range([0, 75]);
  var color = colorscale([0,0.05,0.0641,0.1,1],["red", "yellow", "green", "blue", "darkblue"]);

/* Initialize tooltip */
  var tip = changetooltip();

/* Invoke the tip in the context of your visualization */
  svg.call(tip);

// Add tooltip div
  var div = d3.select("body").append("div")
    .attr("class", "tooltip")
    .style("opacity", 1e-6);
  d3.csv('cz_towns.csv', function(data) {
   d3.csv('sz_pirati_zmena_2013.csv',function(results_arr) {
       results = {};
       for (i=0;i<results_arr.length;i++) {
           results[results_arr[i]['id']] = results_arr[i];
       }
    //mapping
    nodes = data
      .map(function(d) {
        mpoint = projectPoint(d.lat,d.long);
        ret = {
          x: mpoint.x,
          y: mpoint.y,
          name: d.name,
          value: d  //including whole d
        };
        if (typeof(results[d.id]) != 'undefined') {
            ret['results'] = results[d.id];
            ret['r'] = radiusScale(results[d.id]["total"]);
        }
        return ret;
     });
    //adding circles
    var circle = svg.selectAll("svg")
      .data(nodes)
      .enter().append("svg:svg")
        .append("svg:circle")
        .attr("class","town")
        .attr("id", function (d) {return "id_" + d.value.id})
        .attr("cx", function (d) {return d.x})
        .attr("cy", function (d) {return d.y})
	    .attr("r", function (d) {return d.r})
	    .attr("fill", function (d) {
	      if (typeof(d.results) != 'undefined') {
	        return color(parseFloat(d.results['sz_pirati_zmena'])/d.results['total']);
	      } else {
	        return '#ccf';
	      }
	    })
        .on("mouseover", tip.show)
	    .on("mouseout", tip.hide);

//on zoom or map movement, https://leafletjs.com/reference.html#events
    map.on("viewreset", changeit);
    map.on("moveend", changeit);
    //map.on("move", hidepoints);   //not needed
    map.on("zoomstart", hidepoints);
    $(".towns").show(100);
   });
  });

//helper function matrix to values
  function matrixVal(s) {
      return s.split('(')[1].split(')')[0].split(',');
  }

function hidepoints() {
    $(".towns").hide();
  }

// adjust points after map change (zoom, move)
  function changeit() {
     //Chromium/Chrome does not support well changes, so:
     var s = $(".leaflet-map-pane").css("-webkit-transform");  //chromium, opera
     if (typeof(s) == 'undefined')
       var s = $(".leaflet-map-pane").css("transform");  //ff
     var sar = matrixVal(s);

//if towns in svg: (not used if it is div)
  	 $(".towns").css('left',-1*parseFloat(sar[4]));
     $(".towns").css('top',-1*parseFloat(sar[5]));

d3.selectAll(".town").each(function(d,i) {
       //set correct x,y
       mpoint = projectPoint(d.value.lat,d.value.long,d.value.id);
       $(this)
         .attr("r",
           function() {
            if (typeof(d.results) != 'undefined')
                return radiusScale(d.results["total"]) * Math.pow(map.getZoom(),4) / 4096;	//power of 3 to show the results better in small scale
            else
                return 0;
           }
          )
          /*.attr("stroke-width",
            Math.abs(radiusScale(d.value.population.p9)-radiusScale(d.value.population.p6)) * Math.pow(map.getZoom(),3) / 729	//power of 3 to show the results better in small scale
          )*/
          .attr("cx", mpoint.x)
          .attr("cy", mpoint.y);

//Reposition the SVG to cover the features.
          //note: if towns is div, next lines are needed; if it is svg, it is different:
          $(this).attr('transform',"translate(" + sar[4] + "," + sar[5] + ")");
          /*$(this).parent().css('left',-1*parseFloat(sar[4]));
          $(this).parent().css('top',-1*parseFloat(sar[5]));*/

});
    $(".towns").show(300);

}

// Use Leaflet to implement a D3 geometric transformation.
  function projectPoint(x, y, id) {
	  var point = map.latLngToLayerPoint(new L.LatLng(x, y));
	  if (!isNumeric(point.x)) alert(id);
	  return point;
  }

function changetooltip() {
    tip = d3.tip().attr('class', 'd3-tip').html(function(d) {
      html = '<span class="stronger">' + d.name + "</span><br>";
      if (typeof(d.results) != 'undefined') {
            html += 'SZ+Piráti+Změna: '+Math.round(parseFloat(d.results.sz_pirati_zmena)/parseFloat(d.results.total)*10000)/100 + ' % (' + d.results.sz_pirati_zmena + ')<br>';
            html += 'Piráti: '+Math.round(parseFloat(d.results.pirati)/parseFloat(d.results.total)*10000)/100 + ' % (' + d.results.pirati + ')<br>';
            html += 'Zelení: '+Math.round(parseFloat(d.results.sz)/parseFloat(d.results.total)*10000)/100 + ' % (' + d.results.sz + ')<br>';
            html += 'Změna: '+Math.round(parseFloat(d.results.zmena)/parseFloat(d.results.total)*10000)/100 + ' % (' + d.results.zmena + ')';      }
      /*if (typeof(d.value.description) != 'undefined') {
        html += d.value.description;
      }*/
      /*else
        html += 'Ešte nie je rozhodnuté';*/

return html;
    });
    return tip;
  }

function isNumeric(n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
}
  //set color scale
  function colorscale(domain,range) {
    return d3.scale.linear()
            .domain(domain)
            .range(range);
  }

//regions only
$(document).ready(function() {
    $(".regions").on('click',function() {
        var reg = $(this);
        d3.selectAll(".town").each(function(d,i) {
            if (d.results.region == reg.attr('value')) {
                $('#id_'+d.value.id).show();
            } else {
                $('#id_'+d.value.id).hide();
            }
        });
    });
});
</script>

ga('create', 'UA-8592359-13', 'ocks.org');
      ga('send', 'pageview');

</script>

</body>
</html>

Modified http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js to a secure url

Modified http://d3js.org/d3.v3.min.js to a secure url

https://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js

https://d3js.org/d3.v3.min.js

https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js

https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js