RandomEtc/README.md

## readme-boundaries.json

      
        
            
              
              
            

                Raw

        
        
          
            
          
          
            
              readme-boundaries.json
            
          
        
      
    
    

          
    
      
      Sorry, something went wrong. Reload?
      Sorry, we cannot display this file.
      Sorry, this file is invalid so it cannot be displayed.
      
          Viewer requires iframe.
      
    
  
 
    

  

## readme-land.json

      
        
            
              
              
            

                Raw

        
        
          
            
          
          
            
              readme-land.json
            
          
        
      
    
    

          
    
      
      Sorry, something went wrong. Reload?
      Sorry, we cannot display this file.
      Sorry, this file is invalid so it cannot be displayed.
      
          Viewer requires iframe.
      
    
  
 
    

  

## README.md

      
        

                Raw

        
        
          
            
          
          
            
              README.md
            
          
        
      
      
    Tissot's Indicatrix rendered with D3.
NB:- see Jason's comment about these not being "true" Tissot indicatrices.

  

  

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  margin: 0;
}

.background {
  fill: #bee8ff;
}

.foreground {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}

.graticule {
  fill: none;
  stroke: #aaa;
  stroke-width: .5px;
}

.land {
  fill: #b7db6e;
  stroke: #4f6521;
}

.boundary {
  fill: none;
  stroke: #7b9545;
}

.tissot {
  fill: rgba(255,0,0,0.5);
  stroke: none;
}

</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>

var radians = Math.PI / 180.0;

var width = window.innerWidth,
    height = window.innerHeight;

var projection = d3.geo.orthographic()
    .scale(Math.min(width,height)*0.45)
    .translate([width / 2 - .5, height / 2 - .5])
    .rotate([-30,-30])
    .clipAngle(90 + 1e-6);

var path = d3.geo.path()
    .projection(projection);

var graticule = d3.geo.graticule().step([30,30]);

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

svg.append("path")
    .datum(graticule.outline)
    .attr("class", "background")
    .attr("d", path);

svg.selectAll(".graticule")
    .data(graticule.lines)
  .enter().append("path")
    .attr("class", "graticule")
    .attr("d", path);

svg.append("path")
    .datum(graticule.outline)
    .attr("class", "foreground")
    .attr("d", path);

d3.json("readme-boundaries.json", function(error, collection) {
  svg.insert("path", ".graticule")
      .datum(collection)
      .attr("class", "boundary")
      .attr("d", path);
});

d3.json("readme-land.json", function(error, collection) {
  svg.insert("path", ".graticule,.boundary")
      .datum(collection)
      .attr("class", "land")
      .attr("d", path);
});

var indicatices = d3.merge(d3.range(-180,181,30).map(function(lon) {
  return d3.range(-60,61,30).map(function(lat) {
    return d3.geo.circle().origin([ lon, lat ]).angle(7.0)();
  });
}));

svg.selectAll("path.tissot")
    .data(indicatices)
  .enter().append("path")
    .attr("class", "tissot")
    .attr("d", path);

</script>

## thumbnail.png

      
        

                Raw

        
        
          
            
          
          
            
              thumbnail.png
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	margin: 0;
	}

	.background {
	fill: #bee8ff;
	}

	.foreground {
	fill: none;
	stroke: #ccc;
	stroke-width: 1.5px;
	}

	.graticule {
	fill: none;
	stroke: #aaa;
	stroke-width: .5px;
	}

	.land {
	fill: #b7db6e;
	stroke: #4f6521;
	}

	.boundary {
	fill: none;
	stroke: #7b9545;
	}

	.tissot {
	fill: rgba(255,0,0,0.5);
	stroke: none;
	}

	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>

	var radians = Math.PI / 180.0;

	var width = window.innerWidth,
	height = window.innerHeight;

	var projection = d3.geo.orthographic()
	.scale(Math.min(width,height)*0.45)
	.translate([width / 2 - .5, height / 2 - .5])
	.rotate([-30,-30])
	.clipAngle(90 + 1e-6);

	var path = d3.geo.path()
	.projection(projection);

	var graticule = d3.geo.graticule().step([30,30]);

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height);

	svg.append("path")
	.datum(graticule.outline)
	.attr("class", "background")
	.attr("d", path);

	svg.selectAll(".graticule")
	.data(graticule.lines)
	.enter().append("path")
	.attr("class", "graticule")
	.attr("d", path);

	svg.append("path")
	.datum(graticule.outline)
	.attr("class", "foreground")
	.attr("d", path);

	d3.json("readme-boundaries.json", function(error, collection) {
	svg.insert("path", ".graticule")
	.datum(collection)
	.attr("class", "boundary")
	.attr("d", path);
	});

	d3.json("readme-land.json", function(error, collection) {
	svg.insert("path", ".graticule,.boundary")
	.datum(collection)
	.attr("class", "land")
	.attr("d", path);
	});

	var indicatices = d3.merge(d3.range(-180,181,30).map(function(lon) {
	return d3.range(-60,61,30).map(function(lat) {
	return d3.geo.circle().origin([ lon, lat ]).angle(7.0)();
	});
	}));

	svg.selectAll("path.tissot")
	.data(indicatices)
	.enter().append("path")
	.attr("class", "tissot")
	.attr("d", path);

	</script>