milkbread/demo.json

## readme.md

      
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              readme.md
            
          
    Demonstrating the single steps of a generalisation algorithm

This is a first test on how it could be implemented!!!

  
## demo.json

      
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              demo.json
            
          
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## index.html
<!DOCTYPE html>
<html>
<head>
  <title>Demonstration</title>
  <meta charset="utf-8" />
  <script src="http://cdn.leafletjs.com/leaflet-0.6.1/leaflet.js"></script>
  <script src="http://d3js.org/d3.v3.min.js"></script>
  <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
  <script src="http://bl.ocks.org/milkbread/raw/5909613/simplify_RK_1.1.js"></script>
  <style>
  @import url(http://cdn.leafletjs.com/leaflet-0.6.1/leaflet.css);
  .row{
    display:inline-block;
  }
  .main_container{
    width:100%;
    background-color:#ddd;
    padding-left:7%;
  }
  .container{
    margin-bottom:10px;
    padding:20px;
    padding-left:0px;
  }
  .heading{
    font-size:24pt;
  }
  .centered{
    text-align:center;
  }
  .margin1{
    margin:10px;
  }
  .main_heading{
    font-size:32pt;
  }
  .description{
    font-size:22pt;
  }
  </style>
</head>
<body>
  <script>
  var search_tag = location.search.replace('?','');
  var file = 'demo.json';
  if (search_tag.length!=0){
    file = search_tag;
  }

  d3.json(file, function(error, json_) {
    d3.select('body').append('p').attr("class","main_heading centered margin1").text(json_.properties.title)
    d3.select('body').append('p').attr("class","description centered margin1").text(json_.properties.description)
    d3.select('body').append('div').attr('class','main_container').attr('id','main_container')

    json_.features.forEach(showDemoStages)
  })

  function showDemoStages(feature, id){
    var geometries = feature.geometries.features;
    var container = d3.select('#main_container').append('div').attr('class','row').append('div').attr('id',id).attr('class','container')


    container.append('div').attr('class','heading centered').append('text').text('Stage Nr.'+id).attr('id','text'+id)

    var width = 500, height = 250;
    container.append('div').attr('id','map'+id).style('width',width+'px').style('height',height+'px')//.style('margin-left',(window.innerWidth-width)/2 + 'px')
    var map = L.map('map'+id).setView([53, 20], 5);
    var data_attrib = " | Data: <a href='http://www.openstreetmap.org/'>&copy; OpenStreetMap </a>contributers | <a href='http://d3js.org/'>D3.js</a>"
    var stamen = L.tileLayer('http://{s}.tile.stamen.com/toner/{z}/{x}/{y}.png', {attribution: "Map: <a href='http://maps.stamen.com/#toner/12/37.7706/-122.3782'>Stamen Design</a>" + data_attrib}).addTo(map);
    var baseLayers = {"stamen": stamen};
    var overlays = {};
    var lGroup = L.layerGroup()
    var pGroup = L.layerGroup()

    var color = d3.scale.category10()

    var polyline;

    var minArea = {'value':Infinity,'index':-1};
    geometries.forEach(function(d, i){
      if(d.geometry.type=='Polygon'){
        if(minArea.value > d.properties.area){
          minArea.value = d.properties.area;
          minArea.index = i;
        }
      }
    })

    geometries.forEach(function(d,i){
      if(d.geometry.type=='LineString'){
        polyline = L.polyline(d.geometry.coordinates.map(function(e){return [e[1],e[0]]}), {color: "#f00"});
        overlays['linestring ['+d.geometry.coordinates.length+' Points]'] = polyline;
        map.fitBounds(polyline.getBounds())

        d.geometry.coordinates.forEach(function(e,i){
          var circle = L.circle([e[1],e[0]], 100, { color: '#000', fillColor: '#000'});
          pGroup.addLayer(circle)
        })
      }
      else if(d.geometry.type=='Polygon'){
        if(i != minArea.index)c='#777'
        else c='#f0f'
        var polygon = L.polygon(d.geometry.coordinates.map(function(f){return f.map(function(g){return [g[1],g[0]]})}), {color: c });//color(i)});
        polygon.bindPopup("Area: "+d.properties.area.toFixed(6));
        lGroup.addLayer(polygon);
      }
    })
    lGroup.addTo(map);
    overlays['triangles'] = lGroup;
    pGroup.addTo(map);
    overlays['points'] = pGroup;
    polyline.addTo(map);
    L.control.layers(baseLayers, overlays).addTo(map)
  }

</script>
 </body>
</html>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<html>
	<head>
	<title>Demonstration</title>
	<meta charset="utf-8" />
	<script src="http://cdn.leafletjs.com/leaflet-0.6.1/leaflet.js"></script>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
	<script src="http://bl.ocks.org/milkbread/raw/5909613/simplify_RK_1.1.js"></script>
	<style>
	@import url(http://cdn.leafletjs.com/leaflet-0.6.1/leaflet.css);
	.row{
	display:inline-block;
	}
	.main_container{
	width:100%;
	background-color:#ddd;
	padding-left:7%;
	}
	.container{
	margin-bottom:10px;
	padding:20px;
	padding-left:0px;
	}
	.heading{
	font-size:24pt;
	}
	.centered{
	text-align:center;
	}
	.margin1{
	margin:10px;
	}
	.main_heading{
	font-size:32pt;
	}
	.description{
	font-size:22pt;
	}
	</style>
	</head>
	<body>
	<script>
	var search_tag = location.search.replace('?','');
	var file = 'demo.json';
	if (search_tag.length!=0){
	file = search_tag;
	}

	d3.json(file, function(error, json_) {
	d3.select('body').append('p').attr("class","main_heading centered margin1").text(json_.properties.title)
	d3.select('body').append('p').attr("class","description centered margin1").text(json_.properties.description)
	d3.select('body').append('div').attr('class','main_container').attr('id','main_container')

	json_.features.forEach(showDemoStages)
	})

	function showDemoStages(feature, id){
	var geometries = feature.geometries.features;
	var container = d3.select('#main_container').append('div').attr('class','row').append('div').attr('id',id).attr('class','container')


	container.append('div').attr('class','heading centered').append('text').text('Stage Nr.'+id).attr('id','text'+id)

	var width = 500, height = 250;
	container.append('div').attr('id','map'+id).style('width',width+'px').style('height',height+'px')//.style('margin-left',(window.innerWidth-width)/2 + 'px')
	var map = L.map('map'+id).setView([53, 20], 5);
	var data_attrib = " \| Data: <a href='http://www.openstreetmap.org/'>© OpenStreetMap </a>contributers \| <a href='http://d3js.org/'>D3.js</a>"
	var stamen = L.tileLayer('http://{s}.tile.stamen.com/toner/{z}/{x}/{y}.png', {attribution: "Map: <a href='http://maps.stamen.com/#toner/12/37.7706/-122.3782'>Stamen Design</a>" + data_attrib}).addTo(map);
	var baseLayers = {"stamen": stamen};
	var overlays = {};
	var lGroup = L.layerGroup()
	var pGroup = L.layerGroup()

	var color = d3.scale.category10()

	var polyline;

	var minArea = {'value':Infinity,'index':-1};
	geometries.forEach(function(d, i){
	if(d.geometry.type=='Polygon'){
	if(minArea.value > d.properties.area){
	minArea.value = d.properties.area;
	minArea.index = i;
	}
	}
	})

	geometries.forEach(function(d,i){
	if(d.geometry.type=='LineString'){
	polyline = L.polyline(d.geometry.coordinates.map(function(e){return [e[1],e[0]]}), {color: "#f00"});
	overlays['linestring ['+d.geometry.coordinates.length+' Points]'] = polyline;
	map.fitBounds(polyline.getBounds())

	d.geometry.coordinates.forEach(function(e,i){
	var circle = L.circle([e[1],e[0]], 100, { color: '#000', fillColor: '#000'});
	pGroup.addLayer(circle)
	})
	}
	else if(d.geometry.type=='Polygon'){
	if(i != minArea.index)c='#777'
	else c='#f0f'
	var polygon = L.polygon(d.geometry.coordinates.map(function(f){return f.map(function(g){return [g[1],g[0]]})}), {color: c });//color(i)});
	polygon.bindPopup("Area: "+d.properties.area.toFixed(6));
	lGroup.addLayer(polygon);
	}
	})
	lGroup.addTo(map);
	overlays['triangles'] = lGroup;
	pGroup.addTo(map);
	overlays['points'] = pGroup;
	polyline.addTo(map);
	L.control.layers(baseLayers, overlays).addTo(map)
	}

	</script>
	</body>
	</html>